From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 17363 invoked from network); 20 Feb 2004 23:35:24 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore03.plus.net with SMTP; 20 Feb 2004 23:35:24 -0000 Received: (qmail 75004 invoked from network); 20 Feb 2004 23:35:23 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 20 Feb 2004 23:35:20 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AuKAx-000JJV-Ep for dave@picks.force9.co.uk; Fri, 20 Feb 2004 23:35:19 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AuKAE-0001Kp-5V for rs_out@blacksheep.org; Fri, 20 Feb 2004 23:34:34 +0000 Received: from [195.80.0.234] (helo=one.surfree.co.uk) by post.thorcom.com with esmtp (Exim 4.14) id 1AuKAD-0001Kg-5E for rsgb_lf_group@blacksheep.org; Fri, 20 Feb 2004 23:34:33 +0000 X-Fake-Domain: RSGB613192 Received: from RSGB613192 ([212.248.140.35]) by one.surfree.co.uk (8.9.3/8.9.3) with SMTP id AAA31178; Sat, 21 Feb 2004 00:34:23 GMT X-Bad-Message-ID: no DNS (RSGB613192) Message-ID: <001801c3f80a$15f44fc0$045bfea9@RSGB613192> From: "Andy Talbot" To: "LF Group" Cc: ACTALBOT@mail.dstl.gov.uk Date: Fri, 20 Feb 2004 23:33:25 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2615.200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: GPS Locked BPSK - Perfect copy at 12dB S/N in 1Hz Content-Type: multipart/mixed; boundary="------------030108070200060608020707" X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 This is a multi-part message in MIME format. --------------030108070200060608020707 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 8bit After a bit of 'codebreaking' to identify the character boundaries I managed to get perfect copy of Brian's 1 Bit per Second GPS locked PSK transmission. Starting at the two minute marker the text read "1drp ct1drp [nul] ct" where [nul] is the ASCII zero code. So the transmission obviously wasn't started on the even minute marker (was this deliberate Brian ;-) The attached file is a plot of phase accumulated over each second, plotted vertically from -180 to +180 degrees, with time horizontally. Each change in colour which occurs every 8 bits corresponds to a new ASCII character, and in hexadecimal the bits making up each colour are : 0x31 0x64 0x72 0x70 0x20 0x63 0x74 0x31 0x64 0x72 0x70 0x20 0x00 0x63 which equate to the letters above. Also shown is the phasor diagram for an entire 10 minutes worth of transmission indicating Brians signal clearly drifting around the phase circle - the S/N appears to be about 10 - 15dB in the 1Hz bandwidth; this sort of S/N is consistent with 100% BPSK decoding. The initial polarity had to be inferred by assuming all 8 bit characters were plain ASCII, and therefore the most significant bit (the first sent) would always be zero; the rest making up each character follow from that. It gets a bit confusing when the phase changes from +180 to -180, but it is obvious enough when this happens. The frequency error between us can be read off by looking at the slope of average phase over several seconds which is something like 90 degrees in 25 seconds approximately, so 1 cycle in 100 seconds = .01Hz. Which is almost exactly the frequency setting resolution of my LF receiver. The signal was inaudible, and viewing on Argo showed a barely detectable signal in 20s dot mode. My decoder is hardware based. The Rx output, at 1kHz centre freq exactly, is bandpass filtered to 60Hz bandwidth in an opamp circuit, multiplied with two 90 degree phase shifted square waves driven from the divided down frequency standard again using opamps. The output from these are low pass filtered to a few Hz (in more opamps!) then sent to a PIC microcontroller for A/D conversion. The PIC is triggered by the pulse from a GPS receiver and makes 250 measurements of both I and Q channels each second. The 250 pairs of measurements are summed and output as two numbers over the RS232 port to a PC for subsequent plotting. The PIC also reads the time from the NMEA string sent by the GPS and translates this to a time code included with the data sent to the PC. Later, now we have proved the technique, automatic decoding of the bit pattern can replace the colour plot. The frequency error remains a problem - it is quite unreasonable to expect stations to hold phase within better than 90 degrees over the duration of a QSO - although not impossible, just difficult - so it looks as if differential coding is required. In this scheme a binary one is represented by the phase CHANGING from one bit to the next, a binary zero by it remaining as is. In one go, differential coding removes the phase ambiguity and copes with slow relative frequency drift, but inherently doubles the error rate. If one bit is decoded in error then the next will also be wrong as it will be compared with the previous faulty one. A small price to pay for the simplicity and reliability of not having to generate carrier tracking. BTW, on a different subject, the graphics plots generated were several tens of K in size as .JPGs but only a few K in .PCX format Shows the value of run length compression for this type of plot where most of the image consists of just one colour. 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(HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore01.plus.net with SMTP; 20 Feb 2004 23:33:03 -0000 Received: (qmail 77936 invoked from network); 20 Feb 2004 23:35:59 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 20 Feb 2004 23:35:57 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AuKBZ-000K6I-Bn for dave@picks.force9.co.uk; Fri, 20 Feb 2004 23:35:57 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AuKB9-0001Nj-Lv for rs_out@blacksheep.org; Fri, 20 Feb 2004 23:35:31 +0000 Received: from [195.80.0.234] (helo=one.surfree.co.uk) by post.thorcom.com with esmtp (Exim 4.14) id 1AuKB9-0001NU-3v for rsgb_lf_group@blacksheep.org; Fri, 20 Feb 2004 23:35:31 +0000 X-Fake-Domain: RSGB613192 Received: from RSGB613192 ([212.248.140.35]) by one.surfree.co.uk (8.9.3/8.9.3) with SMTP id AAA31201 for ; Sat, 21 Feb 2004 00:35:24 GMT X-Bad-Message-ID: no DNS (RSGB613192) Message-ID: <002e01c3f80a$39f7ac00$045bfea9@RSGB613192> From: "Andy Talbot" To: rsgb_lf_group@blacksheep.org References: <002301c3f800$f14c3e20$e1aa2951@BI57429bankinter> Date: Fri, 20 Feb 2004 23:35:27 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2615.200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-MIME-Autoconverted: from 8bit to quoted-printable by one.surfree.co.uk id AAA31201 Subject: LF: Re: Strange signal Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 It is CT1DRP sending 1 B/S BPSK. See my other posting Andy G4JNT ----- Original Message ----- From: José Manuel To: Sent: Friday, February 20, 2004 10:28 PM Subject: LF: Strange signal > Hi all: > > Does anybody else receive a continuos and strange signal on 135923,6 Hz. > > 73 de José, EA1PX > > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 69897 invoked from network); 22 Feb 2004 18:54:02 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore04.plus.net with SMTP; 22 Feb 2004 18:54:02 -0000 Received: (qmail 50724 invoked from network); 22 Feb 2004 18:54:02 -0000 Content-Transfer-Encoding: 8bit X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 22 Feb 2004 18:53:58 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1Auyjm-000Cti-ON for dave@picks.force9.co.uk; Sun, 22 Feb 2004 18:53:58 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Auyiy-0001M9-SS for rs_out@blacksheep.org; Sun, 22 Feb 2004 18:53:08 +0000 X-No-DNS-For: 216.168.96.52 Received: from [216.168.96.52] (helo=mail.nrtco.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Auyiv-0001M0-Qa for rsgb_lf_group@blacksheep.org; Sun, 22 Feb 2004 18:53:05 +0000 X-Fake-Domain: nocturna-y1zrar Received: from nocturna-y1zrar (nrtcorback-216-168-120-95.nrtco.net [216.168.120.95]) by mail.nrtco.net (8.12.10/8.12.1) with SMTP id i1MIrS9Y009623; Sun, 22 Feb 2004 13:53:28 -0500 Message-ID: <3.0.6.32.20040222135311.00c61570@magma.ca> X-Sender: ve2iq@magma.ca X-Mailer: QUALCOMM Windows Eudora Light Version 3.0.6 (32) Date: Sun, 22 Feb 2004 13:53:11 -0500 To: lowfer@mailman.qth.net, rsgb_lf_group@blacksheep.org From: "Bill de Carle" In-reply-to: <4038D80B.23AD@pacbell.net> References: <000701c3f8cf$339c35e0$6401a8c0@attbi.com> <4037F85D.48F3@pacbell.net> <013b01c3f8dc$13747a40$0201a8c0@private.network> <4038D1E9.567A@pacbell.net> <4038D386.3020607@wb3anq.com> MIME-Version: 1.0 Subject: LF: AFRICAM release 4.6 Content-Type: text/plain; charset=us-ascii; format=flowed X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 AFRICAM Version 4.6 has been released. A bug in the fine-resolution timing routines has been corrected. Hopefully, this will resolve a lot of erratic symptoms. I should have found it years ago :-) Download from: www.magma.ca/~ve2iq Bill VE2IQ From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 50846 invoked from network); 21 Feb 2004 15:38:15 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore02.plus.net with SMTP; 21 Feb 2004 15:38:15 -0000 Received: (qmail 68438 invoked from network); 21 Feb 2004 15:38:15 -0000 Content-Transfer-Encoding: 8bit X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 21 Feb 2004 15:38:14 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AuZCn-000HaG-W3 for dave@picks.force9.co.uk; Sat, 21 Feb 2004 15:38:14 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AuZBs-0000DV-HX for rs_out@blacksheep.org; Sat, 21 Feb 2004 15:37:16 +0000 X-No-DNS-For: 216.168.96.52 Received: from [216.168.96.52] (helo=mail.nrtco.net) by post.thorcom.com with esmtp (Exim 4.14) id 1AuZBp-0000DJ-Jh for rsgb_lf_group@blacksheep.org; Sat, 21 Feb 2004 15:37:13 +0000 X-Fake-Domain: nocturna-y1zrar Received: from nocturna-y1zrar (nrtcorback-216-168-120-95.nrtco.net [216.168.120.95]) by mail.nrtco.net (8.12.10/8.12.1) with SMTP id i1LFbT9Y007859 for ; Sat, 21 Feb 2004 10:37:29 -0500 Message-ID: <3.0.6.32.20040221103718.00c5ba08@magma.ca> X-Sender: ve2iq@magma.ca (Unverified) X-Mailer: QUALCOMM Windows Eudora Light Version 3.0.6 (32) Date: Sat, 21 Feb 2004 10:37:18 -0500 To: rsgb_lf_group@blacksheep.org From: "Bill de Carle" In-reply-to: <131.2a3ec779.2d67f908@aol.com> MIME-Version: 1.0 Subject: LF: Overnight transatlantic on 135.9245 Content-Type: text/plain; charset=us-ascii; format=flowed X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Happy to report clean copy of CT1DRP's signal overnight on 135.9245 Khz. Signal was received in Ontario, Canada. Brian was running GPS-sync'd BPSK with an ASCII ID (no FEC) repeating every 2 minutes and using 1-second per bit. Brian was using his own system, not AFRICAM, although this shows AFRICAM would work well for trans Atlantic tests under similar conditions. Here's the message: 01100011 01110100 00110001 01100100 01110010 01110000 00100000 01100011 01110100 00110001 01100100 01110010 01110000 00100000 00000000 ct1drp ct1drp [00] Bill VE2IQ From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 42035 invoked from network); 22 Feb 2004 14:26:04 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore02.plus.net with SMTP; 22 Feb 2004 14:26:04 -0000 Received: (qmail 9391 invoked from network); 22 Feb 2004 14:26:04 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 22 Feb 2004 14:26:02 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AuuYU-0002Ax-Jd for dave@picks.force9.co.uk; Sun, 22 Feb 2004 14:26:02 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AuuXi-00011z-0r for rs_out@blacksheep.org; Sun, 22 Feb 2004 14:25:14 +0000 Received: from [166.82.181.250] (helo=dustmac.dustinmcintyre.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AuuXg-00011q-S0 for rsgb_lf_group@blacksheep.org; Sun, 22 Feb 2004 14:25:13 +0000 X-Fake-Domain: att.net Received: from att.net (main.dustinmcintyre.com [10.0.252.101]) by dustmac.dustinmcintyre.com (8.11.6/8.11.6) with ESMTP id i1MEPA531711; Sun, 22 Feb 2004 09:25:10 -0500 Message-ID: <4038BBC4.4E1CBE1A@att.net> Date: Sun, 22 Feb 2004 14:25:09 +0000 From: "Dexter McIntyre W4DEX" X-Mailer: Mozilla 4.8 [en] (Windows NT 5.0; U) X-Accept-Language: en MIME-Version: 1.0 To: "RSGB LF" , "lowfer" , "Longwave Message Board" Subject: LF: 162 and 177 kHz BC in NC Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 While copying TAG running GBPSK on 185.800 kHz with 400 Hz IF last night I couldn't help noticing the strong sidebands from Europe 1. The 183 kHz was very strong but not in the clear. I could not determine if there was another BC signal on the frequency or if I had something local distorting the audio. So I tuned down band and found a useable signal from Germany on 177 kHz and a very good signal from France on 162 kHz. I have uploaded a few short clips cut from recordings I made between 0400 and 0500 UT. The 177 kHz signal was much better at 0430 but I did not record that frequency until after 0500 UT. It isn't real good but couldn't mistake hearing the Beetles "I Want to Hold Your Hand". .wav files are available from this directory: http://w4dex.com/lfbc/22feb04/ Dex From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 30498 invoked from network); 9 Feb 2004 00:58:24 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore03.plus.net with SMTP; 9 Feb 2004 00:58:24 -0000 Received: (qmail 84060 invoked from network); 9 Feb 2004 00:58:24 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 9 Feb 2004 00:58:23 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1Apzkl-000LeJ-Cs for dave@picks.force9.co.uk; Mon, 09 Feb 2004 00:58:23 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ApzkH-0000n2-Gz for rs_out@blacksheep.org; Mon, 09 Feb 2004 00:57:53 +0000 X-No-DNS-For: 166.82.181.250 Received: from [166.82.181.250] (helo=dustmac.dustinmcintyre.com) by post.thorcom.com with esmtp (Exim 4.14) id 1ApzkG-0000mt-Cd for rsgb_lf_group@blacksheep.org; Mon, 09 Feb 2004 00:57:52 +0000 X-Fake-Domain: att.net Received: from att.net (main.dustinmcintyre.com [10.0.252.101]) by dustmac.dustinmcintyre.com (8.11.6/8.11.6) with ESMTP id i190vo512767 for ; Sun, 8 Feb 2004 19:57:50 -0500 Message-ID: <4026DB0D.30723C73@att.net> Date: Mon, 09 Feb 2004 00:57:49 +0000 From: "Dexter McIntyre W4DEX" X-Mailer: Mozilla 4.8 [en] (Windows NT 5.0; U) X-Accept-Language: en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <6.0.1.1.2.20040201150716.03705e90@POP3.freeler.nl> <002701c3eea2$487a67c0$eee086d4@erica> <4026D0D6.60C47686@att.net> <002f01c3eea6$c54ac7a0$eee086d4@erica> Subject: Re: LF: Re: TA. Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Thanks Peter. Looking great! Live updates at: http://www.w4dex.com/argo/135khz.htm Dex g3ldo wrote: > > Peter, > > > > I believe your signal is visible here in NC but it is so close to my > > local loran line at 135921.053 kHz it's hard to tell for sure. Could > > you possible bump the freq up a tad? > > > OK, now on135922.1 according to the frequency counter > > Regards, > Peter, G3LDO From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 61344 invoked from network); 9 Feb 2004 00:14:56 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore04.plus.net with SMTP; 9 Feb 2004 00:14:56 -0000 Received: (qmail 17590 invoked from network); 9 Feb 2004 00:14:56 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 9 Feb 2004 00:14:55 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1Apz4h-0004SG-54 for dave@picks.force9.co.uk; Mon, 09 Feb 2004 00:14:55 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Apz46-0007Ht-Pn for rs_out@blacksheep.org; Mon, 09 Feb 2004 00:14:18 +0000 X-No-DNS-For: 166.82.181.250 Received: from [166.82.181.250] (helo=dustmac.dustinmcintyre.com) by post.thorcom.com with esmtp (Exim 4.14) id 1Apz45-0007Hk-NM for rsgb_lf_group@blacksheep.org; Mon, 09 Feb 2004 00:14:17 +0000 X-Fake-Domain: att.net Received: from att.net (main.dustinmcintyre.com [10.0.252.101]) by dustmac.dustinmcintyre.com (8.11.6/8.11.6) with ESMTP id i190EF512457 for ; Sun, 8 Feb 2004 19:14:15 -0500 Message-ID: <4026D0D6.60C47686@att.net> Date: Mon, 09 Feb 2004 00:14:14 +0000 From: "Dexter McIntyre W4DEX" X-Mailer: Mozilla 4.8 [en] (Windows NT 5.0; U) X-Accept-Language: en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <6.0.1.1.2.20040201150716.03705e90@POP3.freeler.nl> <002701c3eea2$487a67c0$eee086d4@erica> Subject: Re: LF: Re: TA. Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Peter, I believe your signal is visible here in NC but it is so close to my local loran line at 135921.053 kHz it's hard to tell for sure. Could you possible bump the freq up a tad? Dex g3ldo wrote: > Transmitting on the half hour QRSS30 135.921kHz > Looking for VO1NA on the hour > > Regards, > Peter, G3LDO > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 72582 invoked from network); 22 Feb 2004 17:03:15 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore04.plus.net with SMTP; 22 Feb 2004 17:03:15 -0000 Received: (qmail 23896 invoked from network); 22 Feb 2004 17:03:15 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 22 Feb 2004 17:03:13 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1Aux0b-00066A-Os for dave@picks.force9.co.uk; Sun, 22 Feb 2004 17:03:13 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Auwzh-0006XD-GS for rs_out@blacksheep.org; Sun, 22 Feb 2004 17:02:17 +0000 Received: from [62.169.32.13] (helo=netregister.it) by post.thorcom.com with esmtp (Exim 4.14) id 1Auwzg-0006X4-Jx for rsgb_lf_group@blacksheep.org; Sun, 22 Feb 2004 17:02:16 +0000 X-Fake-Domain: ik2dedlibero Received: from ik2dedlibero (ppp-62-123-75-226.dial.atlanet.it [62.123.75.226] (may be forged)) by netregister.it (8.11.4/8.11.4) with SMTP id i1MH2Es21332 for ; Sun, 22 Feb 2004 18:02:14 +0100 X-Bad-Message-ID: no DNS (it) Message-ID: <003f01c28f15$5b30b880$e24b7b3e@it> From: "Giulio Scaroni" To: rsgb_lf_group@blacksheep.org Date: Mon, 18 Nov 2002 16:15:39 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2919.6600 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: unsubscribe_rsgb_lf_group@blacksheep.org Content-Type: text/html; charset=windows-1252 X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: ** X-Spam-Status: No, hits=2.5 required=5.0 tests=DATE_IN_PAST_96_XX,HTML_70_80,HTML_MESSAGE,MIME_HTML_MOSTLY autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Content-transfer-encoding: 8bit
 
From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 28226 invoked from network); 1 Feb 2004 08:26:34 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore03.plus.net with SMTP; 1 Feb 2004 08:26:34 -0000 Received: (qmail 32340 invoked from network); 1 Feb 2004 08:26:34 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 1 Feb 2004 08:26:33 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AnCw5-0008Hv-BP for dave@picks.force9.co.uk; Sun, 01 Feb 2004 08:26:33 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AnCvA-0006JX-Dy for rs_out@blacksheep.org; Sun, 01 Feb 2004 08:25:36 +0000 Received: from [195.3.96.74] (helo=email04.aon.at) by post.thorcom.com with smtp (Exim 4.14) id 1AnCv9-0006JN-SQ for rsgb_lf_group@blacksheep.org; Sun, 01 Feb 2004 08:25:35 +0000 Received: (qmail 76922 invoked from network); 1 Feb 2004 08:25:03 -0000 Received: from n848p023.adsl.highway.telekom.at (HELO PC2-LINUX.aon.at) ([62.47.49.247]) (envelope-sender ) by qmail7rs.highway.telekom.at (qmail-ldap-1.03) with SMTP for ; 1 Feb 2004 08:25:03 -0000 From: "Heinz Schnait" To: rsgb_lf_group@blacksheep.org Date: Sun, 1 Feb 2004 09:25:27 +0100 User-Agent: KMail/1.5.1 References: <6.0.1.1.2.20040129133740.036bcc40@POP3.freeler.nl> <001801c3e80d$73b88fc0$e1e9fc3e@l8p8y6> <000801c3e844$96555220$2102000a@ibm> In-reply-to: <000801c3e844$96555220$2102000a@ibm> MIME-Version: 1.0 Content-Disposition: inline Message-ID: <200402010925.27140.oe5eep@qsl.net> Subject: Re: LF: Schematics powersupplies 50-100Volt wanted Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Hello Dick, There was a regulated and electronically fused 40 - 50V, 8A power supply in QEX March/April 1999. The author is William E. Sabin, W0IYH. I don't know if it's also published on the web, so do a google search. I can fax you fotocopies of the original QEX article if interested. 73, Heinz, OE5EEP > after 2 days of searching the internet and a lot of magazines here, > I still haven't found any (simple) design for a powersupply in the 50-100V > range. > Dick, pa4vhf From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 33907 invoked from network); 22 Feb 2004 08:34:08 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore03.plus.net with SMTP; 22 Feb 2004 08:34:08 -0000 Received: (qmail 37616 invoked from network); 22 Feb 2004 08:34:08 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 22 Feb 2004 08:34:07 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1Aup3v-0009fb-0C for dave@picks.force9.co.uk; Sun, 22 Feb 2004 08:34:07 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Aup3I-0007ls-E1 for rs_out@blacksheep.org; Sun, 22 Feb 2004 08:33:28 +0000 Received: from [212.1.130.143] (helo=smtp-1.visp.telinco.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Aup3H-0007lj-Rj for rsgb_lf_group@blacksheep.org; Sun, 22 Feb 2004 08:33:27 +0000 Received: from [80.40.6.40] (helo=hughspc) by smtp-1.visp.telinco.net with smtp (Exim 3.36 #1) id 1AuoSU-0002jJ-00 for rsgb_lf_group@blacksheep.org; Sun, 22 Feb 2004 07:55:26 +0000 X-Bad-Message-ID: no DNS (hughspc) Message-ID: <000801c3f91e$85417320$28062850@hughspc> From: "Hugh" To: rsgb_lf_group@blacksheep.org References: <131.2a3ec779.2d67f908@aol.com> <002301c3f816$cc105fe0$6507a8c0@Main> <002901c3f856$a0d9a580$36c428c3@captbrian> Date: Sun, 22 Feb 2004 08:30:02 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2615.200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: Re: Re: G0MIN or good things come to those who wait. Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Bryan, I have knowledge only of the Christian Bible, and it maybe that others of different faith would want to give you a different answer. In answer to your question "Is God a secret ham", I would direct you to the First Letter of John, where the apostle declares that God is light, and in Him there is no darkness at all. (Chapter 1 verse 5) Since we know that light is electromagnetic waves, it is logical to assume that God is radio as well, which leads to some interesting theology ! It is difficult to see that God could be one range of frequencies and not others as well, so I must assume that it includes, even 136kHz. So handle it reverently, it's god-stuff and so are we. 73 Hugh M0WYE 1 John 1:5 This is the message we have heard from him and declare to you: God is light; in him there is no darkness at all. ----- Original Message ----- From: captbrian To: Sent: Saturday, February 21, 2004 8:42 AM Subject: LF: Re: Re: G0MIN or good things come to those who wait. > Is God a secret ham ? > > Bryan > ----- Original Message ----- > From: "Alan Melia" > To: > Sent: 21 February 2004 00:51 > Subject: LF: Re: G0MIN or good things come to those who wait. > > > > Where did you hide your big hammer Dave ?? > > Alan G3NYK > > ----- Original Message ----- > > From: > > To: > > Sent: 20 February 2004 23:58 > > Subject: LF: G0MIN or good things come to those who wait. > > > > > > > > > > > > > Some time ago my local club station at Whitton operated 73 and 136kHz on > a > > > Friday night. > > > This was a great learning experience for the club members as usually > > > something dramatic would happen. Unfortunately we had to close the LF > > operation as > > > some fast growing conifers became entangled with the antenna. As they > > belonged to > > > the church next to the community centre there wasn't very much we could > > > do.........G0MIN QRT! > > > > > > 6 months ago some nasty looking cracks appeared in one of the community > > > centre's walls and after an inspection the local authority decided the > > trees were > > > responsible. > > > > > > Earlier this week 6 trees were felled and we now have an unobstructed > wire > > > 250 feet long with the far end attached to the church 90ft AGL. > > > > > > So from next week we'll be back on a Friday evening with something > between > > > 500mW and 1W ERP. Yippee It's been too long. > > > > > > 73 > > > > > > David G0MRF > > > > > > > > > > > > > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 74744 invoked from network); 10 Feb 2004 18:42:45 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore03.plus.net with SMTP; 10 Feb 2004 18:42:45 -0000 Received: (qmail 22734 invoked from network); 10 Feb 2004 18:42:45 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 10 Feb 2004 18:42:44 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AqcqK-0005mz-76 for dave@picks.force9.co.uk; Tue, 10 Feb 2004 18:42:44 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AqcpG-0007GI-EA for rs_out@blacksheep.org; Tue, 10 Feb 2004 18:41:38 +0000 Received: from [209.226.175.109] (helo=tomts35-srv.bellnexxia.net) by post.thorcom.com with esmtp (Exim 4.14) id 1AqcpE-0007G2-MO for rsgb_lf_group@blacksheep.org; Tue, 10 Feb 2004 18:41:36 +0000 Received: from smtp.bellnexxia.net ([209.226.175.204]) by tomts35-srv.bellnexxia.net (InterMail vM.5.01.06.05 201-253-122-130-105-20030824) with SMTP id <20040210184134.KTHX20454.tomts35-srv.bellnexxia.net@smtp.bellnexxia.net> for ; Tue, 10 Feb 2004 13:41:34 -0500 X-Mailer: Openwave WebEngine, version 2.8.6.6 (webedge20-101-174-112-20020617)" From: kayser@sympatico.ca To: rsgb_lf_group@blacksheep.org Date: Tue, 10 Feb 2004 13:41:34 -0500 MIME-Version: 1.0 Message-ID: <20040210184134.KTHX20454.tomts35-srv.bellnexxia.net@smtp.bellnexxia.net> Subject: Re: RE: LF: Timing GPS Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.3 required=5.0 tests=NO_REAL_NAME autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Greetings All: > Judging by the lack of replies to this thread - there seems little interest > here. A very great pity, as accurate GPS locked timing is the next great > improvement we could make to LF signalling. This discussion is exciting. Please, if this moves forward make the system a general design that can be moved around and configured for different uses beyond LF. I also encourge that the system be useable for extremely weak signals and also for very short duration burst signals simultaneously. Wouldn't be great if the worlds propagation beacons on all bands could be upgraded to allow effective 24x7 monitoring of the signals. Larry VA3LK From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 88826 invoked from network); 22 Feb 2004 22:54:34 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore04.plus.net with SMTP; 22 Feb 2004 22:54:34 -0000 Received: (qmail 49795 invoked from network); 22 Feb 2004 22:54:34 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 22 Feb 2004 22:54:33 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1Av2Ub-000Cpq-LQ for dave@picks.force9.co.uk; Sun, 22 Feb 2004 22:54:33 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Av2U3-0000GB-30 for rs_out@blacksheep.org; Sun, 22 Feb 2004 22:53:59 +0000 Received: from [193.70.192.33] (helo=smtp0.libero.it) by post.thorcom.com with esmtp (Exim 4.14) id 1Av2U2-0000FZ-7Q for rsgb_lf_group@blacksheep.org; Sun, 22 Feb 2004 22:53:58 +0000 X-Fake-Domain: default Received: from default (151.30.69.58) by smtp0.libero.it (7.0.020-DD01) id 401D53C70092AE32 for rsgb_lf_group@blacksheep.org; Sun, 22 Feb 2004 23:53:27 +0100 From: "Matteo" To: rsgb_lf_group@blacksheep.org Date: Tue, 17 Feb 2004 21:36:59 +0100 X-MSMail-Priority: Normal X-Priority: 3 X-Mailer: Microsoft Internet Mail 4.70.1155 MIME-Version: 1.0 Message-ID: Subject: LF: unscribe_rsgb_lf_grooup@blacksheep.org Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: ** X-Spam-Status: No, hits=2.5 required=5.0 tests=DATE_IN_PAST_96_XX,MISSING_MIMEOLE,MISSING_OUTLOOK_NAME autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 unscribe_rsgb_lf_grooup@blacksheep.org From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 35750 invoked from network); 16 Feb 2004 18:03:20 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore02.plus.net with SMTP; 16 Feb 2004 18:03:20 -0000 Received: (qmail 18011 invoked from network); 16 Feb 2004 18:03:20 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 X-Priority: 3 X-MSMail-Priority: Normal Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 16 Feb 2004 18:03:14 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1Asn5O-00048x-PU for dave@picks.force9.co.uk; Mon, 16 Feb 2004 18:03:14 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Asn4Z-0005ys-JT for rs_out@blacksheep.org; Mon, 16 Feb 2004 18:02:23 +0000 Received: from [194.25.134.20] (helo=mailout08.sul.t-online.com) by post.thorcom.com with esmtp (Exim 4.14) id 1Asn4Z-0005yj-2O for rsgb_lf_group@blacksheep.org; Mon, 16 Feb 2004 18:02:23 +0000 X-Fake-Domain: fwd00.aul.t-online.de Received: from fwd00.aul.t-online.de by mailout08.sul.t-online.com with smtp id 1AsmdE-0005va-02; Mon, 16 Feb 2004 18:34:08 +0100 Received: from 127.0.0.1 (VroFf0ZvgeRulFD19Z1ihdQn-lFM90KGiZw0rAYKA35aVYoCszeicn@[217.2.117.22]) by fwd00.sul.t-online.com with smtp id 1Asmd0-0jdZFw0; Mon, 16 Feb 2004 18:33:54 +0100 MIME-Version: 1.0 From: Schmischke.DL1KSW@t-online.de References: <12d.357b7d9a.2cf3b16f@aol.com> <001401c3f4ab$37705700$afc98351@j1r9b7> In-reply-to: <001401c3f4ab$37705700$afc98351@j1r9b7> To: rsgb_lf_group@blacksheep.org X-Mailer: T-Online eMail 5.00.0021 Date: 16 Feb 2004 17:33 GMT Message-ID: <1Asmd0-0jdZFw0@fwd00.sul.t-online.com> X-Seen: false X-ID: VroFf0ZvgeRulFD19Z1ihdQn-lFM90KGiZw0rAYKA35aVYoCszeicn Subject: LF: unsubscribe_rsgb_lf_group@blacksheep.org Content-Type: Text/Plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.3 required=5.0 tests=NO_REAL_NAME autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 unsubscribe_rsgb_lf_group@blacksheep.org > > > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 70609 invoked from network); 13 Feb 2004 09:20:36 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore02.plus.net with SMTP; 13 Feb 2004 09:20:36 -0000 Received: (qmail 37848 invoked from network); 13 Feb 2004 09:20:36 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 13 Feb 2004 09:20:35 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1ArZUw-0009a3-Re for dave@picks.force9.co.uk; Fri, 13 Feb 2004 09:20:34 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ArZUG-0006rM-4M for rs_out@blacksheep.org; Fri, 13 Feb 2004 09:19:52 +0000 Received: from [212.23.3.140] (helo=pythagoras.zen.co.uk) by post.thorcom.com with esmtp (Exim 4.14) id 1ArZUF-0006rD-Kh for rsgb_lf_group@blacksheep.org; Fri, 13 Feb 2004 09:19:51 +0000 Received: from [82.68.48.134] (helo=virgin.net) by pythagoras.zen.co.uk with esmtp (Exim 4.30) id 1ArZUE-00024N-Ru for rsgb_lf_group@blacksheep.org; Fri, 13 Feb 2004 09:19:50 +0000 Message-ID: <402C96B5.3010501@virgin.net> Date: Fri, 13 Feb 2004 09:19:49 +0000 From: "Stewart Bryant" User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax) X-Accept-Language: en-us, en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <20040210184134.KTHX20454.tomts35-srv.bellnexxia.net@smtp.bellnexxia.net> <402A6646.4030006@virgin.net> <1ArPAc-19FrkH0@fwd00.sul.t-online.com> <001a01c3f1bc$ad30ad60$6507a8c0@Main> In-reply-to: <001a01c3f1bc$ad30ad60$6507a8c0@Main> X-Originating-Pythagoras-IP: [82.68.48.134] Subject: Re: LF: Timing GPS Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Alan Melia wrote: > Hi Uwe, is it not possible to allow for the delay down the connecting wire > to the NTP sever. In the days I played TCP/IL over packet the PING facility > gave the round-trip delay for paths through regenerators, and packet nodes. > At least that software might be useful for keeping my home network all in > sync > NTP is not a simple time fetch protocol, it is a clock synchronisation protocol that polls the master clock at regular intervals. It does figure out what the RTT is and processes out this error (over a period of time). For non-local time servers the error with a 1024s polling interval seems to be better than 2ms. For a local time server accuracies of 200us with a 64s poll are the norm. See http://www.eecis.udel.edu/~mills/database/brief/perf/perf.pdf - Stewart G3YSX > Cheers de Alan G3NYK > alan.melia@btinternet.com > > ----- Original Message ----- > From: "jannsen" <0482183881-0001@t-online.de> > To: > Sent: 12 February 2004 22:18 > Subject: Re: LF: Timing GPS > > > >>Hi Stewart es All, >>I do some PC clock synchronizations via internet using the program >>"Time Watch", downloaded from http://www.blue-series.de. the NTP server >>transmitting the synchronization signals must be in your vicinity. >>it is not usefull telling us that their timer is <1uS accurate >>(in my case dirived from GPS receivings) if there is a long wire to the >>server. it`s something else if you would know the phase fault on the line >>and can correct it in some way. >> >>reading the PC clock in mSec from the window "Time Decoder" of SpecLab >>of one PC with the clock (motherboard and sound card) permanent >>synchronized by the standard time signal station DCF77 and at the >>same time reading the mSec from the screen of the other PC just >>clocking by the signals from the internet server, I believe I see >>a difference, DCF77 in front. >> >>be that as it may, we should reach an agreement about what kind of >>synchronization we will make use of. >> > > > > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 87268 invoked from network); 11 Feb 2004 17:28:49 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore01.plus.net with SMTP; 11 Feb 2004 17:28:49 -0000 Received: (qmail 91855 invoked from network); 11 Feb 2004 17:30:08 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 X-Priority: 3 X-MSMail-Priority: Normal Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 11 Feb 2004 17:30:07 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AqyBb-000NlV-IJ for dave@picks.force9.co.uk; Wed, 11 Feb 2004 17:30:07 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AqyAi-0004sB-21 for rs_out@blacksheep.org; Wed, 11 Feb 2004 17:29:12 +0000 Received: from [144.254.74.5] (helo=ams-iport-1.cisco.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AqyAh-0004rv-AH for rsgb_lf_group@blacksheep.org; Wed, 11 Feb 2004 17:29:11 +0000 Received: from virgin.net (144.254.74.60) by ams-iport-1.cisco.com with ESMTP; 11 Feb 2004 18:29:16 +0100 Received: from cisco.com (mrwint.cisco.com [64.103.71.48]) by ams-msg-core-1.cisco.com (8.12.10/8.12.6) with ESMTP id i1BHSFL1024393 for ; Wed, 11 Feb 2004 18:28:16 +0100 (MET) Received: from virgin.net (dhcp-rea-gp250-64-103-65-193.cisco.com [64.103.65.193]) by cisco.com (8.8.8/2.6/Cisco List Logging/8.8.8) with ESMTP id RAA23118 for ; Wed, 11 Feb 2004 17:28:38 GMT Message-ID: <402A6646.4030006@virgin.net> Date: Wed, 11 Feb 2004 17:28:38 +0000 From: "Stewart Bryant" User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax) X-Accept-Language: en-us, en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <20040210184134.KTHX20454.tomts35-srv.bellnexxia.net@smtp.bellnexxia.net> In-reply-to: <20040210184134.KTHX20454.tomts35-srv.bellnexxia.net@smtp.bellnexxia.net> Subject: Re: LF: Timing GPS Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 If GPS is not an option, then NTP (clock timing via the Internet) might be an alternative. There is some info on accuracy at http://www.ntp.org/ntpfaq/NTP-s-algo.htm#AEN2361 - Stewart G3YSX kayser@sympatico.ca wrote: > Greetings All: > > >>Judging by the lack of replies to this thread - there seems little interest >>here. A very great pity, as accurate GPS locked timing is the next great >>improvement we could make to LF signalling. > > > This discussion is exciting. Please, if this moves forward make the system a general design that can be moved around and configured for different uses beyond LF. I also encourge that the system be useable for extremely weak signals and also for very short duration burst signals simultaneously. Wouldn't be great if the worlds propagation beacons on all bands could be upgraded to allow effective 24x7 monitoring of the signals. > > Larry > VA3LK > > > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 97811 invoked from network); 29 Feb 2004 22:04:51 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore02.plus.net with SMTP; 29 Feb 2004 22:04:51 -0000 Received: (qmail 91611 invoked from network); 29 Feb 2004 22:04:51 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 29 Feb 2004 22:04:50 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AxZ3K-000NiI-EN for dave@picks.force9.co.uk; Sun, 29 Feb 2004 22:04:50 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AxZ2C-0008PN-Dt for rs_out@blacksheep.org; Sun, 29 Feb 2004 22:03:40 +0000 Received: from [194.73.73.111] (helo=gadolinium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AxZ2B-0008PE-RY for rsgb_lf_group@blacksheep.org; Sun, 29 Feb 2004 22:03:39 +0000 Received: from [213.122.184.105] (helo=Main) by gadolinium.btinternet.com with smtp (Exim 3.22 #25) id 1AxZ2A-00008v-00 for rsgb_lf_group@blacksheep.org; Sun, 29 Feb 2004 22:03:39 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <000a01c3ff0f$e9064380$6507a8c0@Main> From: "Alan Melia" To: rsgb_lf_group@blacksheep.org References: <6.0.1.1.2.20040229131137.027eb800@POP3.freeler.nl> <1701579270.20040229174811@t-online.de> <17986813968.20040229201345@73.ru> Date: Sun, 29 Feb 2004 22:03:43 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: Re: LF: VO1NA beaconing Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hi Sam you must limit the total message size to around 30kB for it all to pass through the reflector. Cheers de Alan G3NYK alan.melia@btinternet.com ----- Original Message ----- From: "rn6bn" To: Sent: 29 February 2004 17:13 Subject: Re: LF: VO1NA beaconing > test reflector !? :( > What size of the file possible in this forum? > Sam, rn6bn mailto:rn6bn@73.ru From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 35843 invoked from network); 29 Feb 2004 11:01:08 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore01.plus.net with SMTP; 29 Feb 2004 11:01:08 -0000 Received: (qmail 34484 invoked from network); 29 Feb 2004 11:05:32 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 29 Feb 2004 11:05:31 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AxOlH-0008qx-FH for dave@picks.force9.co.uk; Sun, 29 Feb 2004 11:05:31 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AxOkG-0000uF-87 for rs_out@blacksheep.org; Sun, 29 Feb 2004 11:04:28 +0000 Received: from [194.73.73.176] (helo=protactinium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AxOkF-0000u6-Mm for rsgb_lf_group@blacksheep.org; Sun, 29 Feb 2004 11:04:27 +0000 Received: from [213.122.42.244] (helo=Main) by protactinium.btinternet.com with smtp (Exim 3.22 #25) id 1AxOkE-00024L-00 for rsgb_lf_group@blacksheep.org; Sun, 29 Feb 2004 11:04:27 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <000701c3feb3$c8e41de0$6507a8c0@Main> From: "Alan Melia" To: "LF-Group" Date: Sun, 29 Feb 2004 11:04:17 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: T/A 28/29th Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hi Joe good copy last night. First signs as the local noise subsided was an "M" at -0130ish then "O" right through to the end of the last string seen finishing at about 0645z. There was a deep fade which took out the last three dashes of the "1" at around 0400z. It is interesting that looking at Steve Dove's trace of DCF39 he shows a deep fade also at about 0345z. I think this is a manifestation of what I call the "boing" effect. I think the ionosphere is "ringing" after the collision yesterday with the CME from the X-Class flare. You can see a very rapid fading with a period of about 15 minutes on Steve's plot. There are probably lots of harmonics and the they all added to give a multipath extinction at around 0400z. I picked a program up from one of the Univ Iono-physics sites which draws a pictiure of a "ringing" sphere....very pretty !! Good Show Cheers de Alan G3NYK alan.melia@btinternet.com From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 10652 invoked from network); 27 Feb 2004 23:13:14 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore02.plus.net with SMTP; 27 Feb 2004 23:13:14 -0000 Received: (qmail 94825 invoked from network); 27 Feb 2004 23:13:14 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 27 Feb 2004 23:13:13 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AwrAO-000OXl-Vh for dave@picks.force9.co.uk; Fri, 27 Feb 2004 23:13:13 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Awr9h-0003ou-Gk for rs_out@blacksheep.org; Fri, 27 Feb 2004 23:12:29 +0000 Received: from [194.73.73.111] (helo=gadolinium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1Awr9g-0003ol-QF for rsgb_lf_group@blacksheep.org; Fri, 27 Feb 2004 23:12:28 +0000 Received: from [213.122.20.144] (helo=Main) by gadolinium.btinternet.com with smtp (Exim 3.22 #25) id 1Awr9f-0002ZU-00 for rsgb_lf_group@blacksheep.org; Fri, 27 Feb 2004 23:12:28 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <000a01c3fd87$36c99a20$6507a8c0@Main> From: "Alan Melia" To: rsgb_lf_group@blacksheep.org References: <000701c3f7a9$3efe6920$6507a8c0@Main> <002901c3f7e4$ef6b59e0$a71279d1@jsm> <000c01c3f997$04835680$e3c428c3@erica> <000401c3fca8$d8295ac0$a5e486d4@erica> Date: Fri, 27 Feb 2004 23:12:35 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: QRV Again. Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hi Joe, gosh I have a lot to answer for !! I hope you dont get frostbite...I will look for you again this evening....though it has been very noisy here lately. Good Luck Alan G3NYK ----- Original Message ----- From: "Joe Craig" To: Sent: 27 February 2004 22:28 Subject: LF: QRV Again. > > According to Alan's predictions, the favourable conditions > will not last much longer. Hoping to take advantage of the > current conditions, I managed to get the wire out > of the trees and up in the air again. > > QRV on 137.777 kHz 1.6 Amps QRSS 30 as I type. > > Cheers > Joe VO1NA > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 6091 invoked from network); 27 Feb 2004 15:09:12 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore02.plus.net with SMTP; 27 Feb 2004 15:09:12 -0000 Received: (qmail 35242 invoked from network); 27 Feb 2004 15:09:12 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 27 Feb 2004 15:09:10 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1Awjby-00092P-CE for dave@picks.force9.co.uk; Fri, 27 Feb 2004 15:09:10 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AwjbB-0006d8-1X for rs_out@blacksheep.org; Fri, 27 Feb 2004 15:08:21 +0000 Received: from [194.73.73.176] (helo=protactinium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1Awjb7-0006cz-Ci for rsgb_lf_group@blacksheep.org; Fri, 27 Feb 2004 15:08:18 +0000 Received: from [213.122.63.81] (helo=Main) by protactinium.btinternet.com with smtp (Exim 3.22 #25) id 1Awjb5-0002zf-00 for rsgb_lf_group@blacksheep.org; Fri, 27 Feb 2004 15:08:15 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <000401c3fd43$8b7f0760$6507a8c0@Main> From: "Alan Melia" To: rsgb_lf_group@blacksheep.org References: <8840D182F8BB7540B173D2B1FA0CA9AB018AE3C5@argos.clb.tcfr.thales> Date: Fri, 27 Feb 2004 15:08:15 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: Re: LF: Propagation...reply Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hi again Jean-Louis...a very good question !! I am not sure I know the answer, but it sure is not a "skip zone" I dont think there should be any of these on LF. My crude geometry suggests that about 2000kms is the distance for a single night-time "hop" ("reflection" height about 90-100kms) ....this means that Uwe is 2 hops and Sam is 3 hops. I think as conditions are not too bad at the moment that there may be interference between paths of different numbers of "hops". It is possible that Sam is getting constructive interference whilst Uwe is seeing destructive interference. Steve Dove W3EEE has a real-time plot of DCF39 and he shows very deep fading nulls. The peak levels which were good were only maintained for a few minutes. It may also be the case that Uwe's noise levels are quite high. He has the Sylt Loran-C chain and various utility high power stations to contend with. I have often seen difference in reception across the width of the UK but nothing as dramatic as these reports. Joe is transmitting on 137.777kHz using around 20sec dot QRSS. He uses a keyer clocked by a free running 555 rather than a computer driven system hence the "odd" (and sometimes different) value Cheers de Alan G3NYK alan.melia@btinternet.com ----- Original Message ----- From: To: Sent: 27 February 2004 13:59 Subject: RE: LF: Propagation > > Hi Alan and group, > > the propagation for 6600km distance was good, but for 4300km, > > the distance > > between Joes and my QTH, was not. all nights I have had VO1NA > > on the screen. > > last night: nothing. > > > > regards > > Uwe/dj8wx > > > > And now, ladies and gentlemen, a newbie question: could this be explained by > a propagation phenomenon (silent zone between 2 hops ??) or rather by an > important noise floor at Uwe QTH ? > > (Another newbie question: please what is (again !) the xmitting frequency of > VO1NA ?) > > 73 de Jean-Louis F6AGR > Loc JN18DQ > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 63995 invoked from network); 26 Feb 2004 18:06:41 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore03.plus.net with SMTP; 26 Feb 2004 18:06:41 -0000 Received: (qmail 31473 invoked from network); 26 Feb 2004 18:06:41 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 26 Feb 2004 18:06:37 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AwPu9-0007iR-7d for dave@picks.force9.co.uk; Thu, 26 Feb 2004 18:06:37 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AwPtP-0001oa-LG for rs_out@blacksheep.org; Thu, 26 Feb 2004 18:05:51 +0000 Received: from [194.73.73.81] (helo=tungsten.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AwPtP-0001oO-11 for rsgb_lf_group@blacksheep.org; Thu, 26 Feb 2004 18:05:51 +0000 Received: from [213.122.215.25] (helo=Main) by tungsten.btinternet.com with smtp (Exim 3.22 #25) id 1AwPtN-0005IG-00 for rsgb_lf_group@blacksheep.org; Thu, 26 Feb 2004 18:05:50 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <000801c3fc93$18bf7b20$6507a8c0@Main> From: "Alan Melia" To: rsgb_lf_group@blacksheep.org References: <002301c3fc7a$fa445de0$6507a8c0@Main> <1AwOsW-1jmLUu0@fwd08.sul.t-online.com> Date: Thu, 26 Feb 2004 18:03:10 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: Re: LF: Propagation Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hi Uwe....maybe it was by "Long Path " :-)) Thanks for the comment Alan ----- Original Message ----- From: "jannsen" <0482183881-0001@t-online.de> To: Sent: 26 February 2004 17:00 Subject: Re: LF: Propagation > Hi Alan and group, > the propagation for 6600km distance was good, but for 4300km, the distance > between Joes and my QTH, was not. all nights I have had VO1NA on the screen. > last night: nothing. > > regards > Uwe/dj8wx From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 19843 invoked from network); 26 Feb 2004 15:15:11 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore03.plus.net with SMTP; 26 Feb 2004 15:15:11 -0000 Received: (qmail 74487 invoked from network); 26 Feb 2004 15:15:10 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 26 Feb 2004 15:15:03 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AwNE7-000Ia2-6A for dave@picks.force9.co.uk; Thu, 26 Feb 2004 15:15:03 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AwNCa-0004ao-Lj for rs_out@blacksheep.org; Thu, 26 Feb 2004 15:13:28 +0000 Received: from [194.73.73.92] (helo=carbon.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AwNCY-0004af-Qr for rsgb_lf_group@blacksheep.org; Thu, 26 Feb 2004 15:13:27 +0000 Received: from [213.122.118.201] (helo=Main) by carbon.btinternet.com with smtp (Exim 3.22 #25) id 1AwNCM-0004WM-00 for rsgb_lf_group@blacksheep.org; Thu, 26 Feb 2004 15:13:15 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <002301c3fc7a$fa445de0$6507a8c0@Main> From: "Alan Melia" To: "LF-Group" Date: Thu, 26 Feb 2004 15:12:35 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Propagation Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hi all, Long distance propagation seems to be good on the night-time paths ...see Joe VO1NA's report from Sam RN6NB at 6600km. Steve W3EEE shows reasonable received levels of DCF39 but not "the best". We have had a period of about 10days since the last minor storm (Kp=5) which occurred 4 days after a Kp=6 event. It would generally take a few more days for conditions to really settle in to the "good" category. Unfortunately a sun-spot appeared, grew rapidly and ejected a Class X1.1 X-ray flare this morning (26th Feb). The spot is Earth-facing so the CME will collide with the Earth in about 2 days time, say Saturday 28th. It will take a couple of days for the effects to show on LF radio propagation, so we can expect a deterioration in long-distance night-time conditions by about the 1st March. As a consolation shorter distance daytime paths should improve for at least two days, with up to 6dB (maybe as high as 10dB) enhancement timed when the sun is at its zenith (mid-day) at the mid-path point. Good Hunting Cheers de Alan G3NYK alan.melia@btinternet.com From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 60979 invoked from network); 25 Feb 2004 10:59:35 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore03.plus.net with SMTP; 25 Feb 2004 10:59:35 -0000 Received: (qmail 83592 invoked from network); 25 Feb 2004 10:59:35 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 25 Feb 2004 10:59:34 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AvwlJ-000LbN-Rw for dave@picks.force9.co.uk; Wed, 25 Feb 2004 10:59:33 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Avwk7-0006Sl-9H for rs_out@blacksheep.org; Wed, 25 Feb 2004 10:58:19 +0000 Received: from [194.73.73.148] (helo=zinc.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1Avwk6-0006Sa-NQ for rsgb_lf_group@blacksheep.org; Wed, 25 Feb 2004 10:58:18 +0000 Received: from [81.131.231.92] (helo=Main) by zinc.btinternet.com with smtp (Exim 3.22 #25) id 1Avwk3-0002g6-00 for rsgb_lf_group@blacksheep.org; Wed, 25 Feb 2004 10:58:15 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <001901c3fb8e$2f2b4ac0$6507a8c0@Main> From: "Alan Melia" To: rsgb_lf_group@blacksheep.org References: <002601c3f93e$478b35a0$6507a8c0@Main> <001f01c3fb72$f5156750$687a37c0@w2ksn> Date: Wed, 25 Feb 2004 10:41:34 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: Re: WOLF development Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hi Stewart,.......answer below...sent direct ----- Original Message ----- From: "Stewart Nelson" To: Sent: 25 February 2004 07:42 Subject: LF: Re: WOLF development > Your keyed oscillator idea is interesting, but it appears to > introduce another unknown. For example, if the 136 kHz oscillator > drifted up 0.01 Hz, it would affect the audio in the same way > as the receiver LO drifting down 0.01 Hz. One way to resolve > this ambiguity would be to digitally divide the 136 kHz into > the audio range, and feed that into the sound card, too. > Do you have a simpler solution? > I suspect you have "forgotten" the properties of a keyed oscillator in this application. If the 136khz oscillator is stopped and re-started by the 1pps signal it will lock and not drift. I agree that if just the oscillator output is keyed (so the whole comb drifts as well) then the osc drift will be a variable, but the keyed oscillator becomes a locked comb-generator. (Tube technology revisited !!) Thus it should be possible to construct this as an LC oscillator. I have not done the maths but I suspect that the smallscale sawtooth FSK created by the drift during the interval between locking pulses will "spread" the line a little, but averaging should be able to remove this satisfactorily. My LF RXs (AOR 7030 s ) whilst stable (TCXO), have no facility to feed in an external standard. The TCXO is a "funny frequency" too. Fascinating stuff. Cheers de Alan G3NYK alan.melia@btinternet.com From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 24086 invoked from network); 24 Feb 2004 20:11:15 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore04.plus.net with SMTP; 24 Feb 2004 20:11:15 -0000 Received: (qmail 70937 invoked from network); 24 Feb 2004 20:11:14 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 24 Feb 2004 20:11:12 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1Avitb-000Hgx-Sn for dave@picks.force9.co.uk; Tue, 24 Feb 2004 20:11:11 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Avirq-0001Cc-Cv for rs_out@blacksheep.org; Tue, 24 Feb 2004 20:09:22 +0000 Received: from [194.73.73.148] (helo=zinc.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1Avirp-0001CT-Kn for rsgb_lf_group@blacksheep.org; Tue, 24 Feb 2004 20:09:21 +0000 Received: from [213.122.42.112] (helo=Main) by zinc.btinternet.com with smtp (Exim 3.22 #25) id 1Aviro-0004vZ-00 for rsgb_lf_group@blacksheep.org; Tue, 24 Feb 2004 20:09:21 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <000701c3fb12$0bbb1920$6507a8c0@Main> From: "Alan Melia" To: "LF-Group" Date: Tue, 24 Feb 2004 20:08:49 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Brian SLMs reply on site Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 83410 invoked from network); 23 Feb 2004 17:45:08 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore02.plus.net with SMTP; 23 Feb 2004 17:45:08 -0000 Received: (qmail 5745 invoked from network); 23 Feb 2004 17:45:08 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 23 Feb 2004 17:45:04 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AvK8a-0001Ef-Pc for dave@picks.force9.co.uk; Mon, 23 Feb 2004 17:45:00 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AvK6z-0001F0-NK for rs_out@blacksheep.org; Mon, 23 Feb 2004 17:43:21 +0000 Received: from [194.73.73.111] (helo=gadolinium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AvK6z-0001Er-0Z for rsgb_lf_group@blacksheep.org; Mon, 23 Feb 2004 17:43:21 +0000 Received: from [213.122.1.69] (helo=Main) by gadolinium.btinternet.com with smtp (Exim 3.22 #25) id 1AvK6x-0001yZ-00 for rsgb_lf_group@blacksheep.org; Mon, 23 Feb 2004 17:43:20 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <001901c3fa34$7a80a340$6507a8c0@Main> From: "Alan Melia" To: rsgb_lf_group@blacksheep.org References: <000701c3f7a9$3efe6920$6507a8c0@Main> <002901c3f7e4$ef6b59e0$a71279d1@jsm> <000c01c3f997$04835680$e3c428c3@erica> <000c01c3f99f$d7cda240$11e086d4@erica> <000a01c3fa1f$a4ce0080$14e086d4@erica> Date: Mon, 23 Feb 2004 17:41:30 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: Re: LF: Re: VO1NA QRV again Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Unfortunately a case of "Duff-Gen" Peter. The killer is the geomagnetic activity (not the sunspots) and their peak always trails the sunspot peak by up to about two years. Things do seem to be calming down a bit now but not as quickly as we would all like. I think from my investigation of the last minimum we will still get geomag storms in the minimum years but they will be further apart allowing more time for recovery from the absorption, and hopefully more DX. Keep looking, things are improving we are still only about 12 days past a minor storm, and I think a few more days of quiet will improve things. I may be able to give better reasons, in retrospect, when Kyoto Univ has caught up with the Dst Index estimations. Keep with it......it should get better (eventually....as the doctor said) Cheers de Alan G3NYK alan.melia@btinternet.com ----- Original Message ----- From: "g3ldo" To: Sent: 23 February 2004 14:22 Subject: Re: LF: Re: VO1NA QRV again > > Joe > > > > > You started off quite strong around 2330 then faded. I > > replied but saw nothing as of 0100. Will run dot 30 > > beacon. > > > > Nothing seen of you earlier. Signal peaked to M between 0200 and 0230. > Fragments through the night. Peaked again after 0700. > > During the winter of 2000/ 2001, and at other times, we had some very good > LF conditions and it was generally predicted that it would get better as we > moved away from the sun spot cycle high. It doesn't seemed to have happened > that way. > > Regards, > Peter, G3LDO > > e-mail > > Web > > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 84546 invoked from network); 22 Feb 2004 23:10:46 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore02.plus.net with SMTP; 22 Feb 2004 23:10:46 -0000 Received: (qmail 99806 invoked from network); 22 Feb 2004 23:10:45 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 22 Feb 2004 23:10:42 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1Av2kE-000P8E-Jx for dave@picks.force9.co.uk; Sun, 22 Feb 2004 23:10:42 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Av2jl-0000rN-AT for rs_out@blacksheep.org; Sun, 22 Feb 2004 23:10:13 +0000 Received: from [194.73.73.147] (helo=einsteinium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1Av2jk-0000rE-Vy for rsgb_lf_group@blacksheep.org; Sun, 22 Feb 2004 23:10:13 +0000 Received: from [213.122.190.87] (helo=Main) by einsteinium.btinternet.com with smtp (Exim 3.22 #25) id 1Av2jk-0004Kq-00 for rsgb_lf_group@blacksheep.org; Sun, 22 Feb 2004 23:10:12 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <002901c3f999$013b93a0$6507a8c0@Main> From: "Alan Melia" To: "LF-Group" Date: Sun, 22 Feb 2004 23:09:59 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Brian ...boing see web-site Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 91970 invoked from network); 22 Feb 2004 23:04:10 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore01.plus.net with SMTP; 22 Feb 2004 23:04:10 -0000 Received: (qmail 97866 invoked from network); 22 Feb 2004 23:07:27 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 22 Feb 2004 23:07:26 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1Av2h4-000PLJ-0W for dave@picks.force9.co.uk; Sun, 22 Feb 2004 23:07:26 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Av2gQ-0000jg-2Q for rs_out@blacksheep.org; Sun, 22 Feb 2004 23:06:46 +0000 Received: from [194.73.73.147] (helo=einsteinium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1Av2gP-0000jX-HK for rsgb_lf_group@blacksheep.org; Sun, 22 Feb 2004 23:06:45 +0000 Received: from [213.122.190.87] (helo=Main) by einsteinium.btinternet.com with smtp (Exim 3.22 #25) id 1Av2gO-000453-00 for rsgb_lf_group@blacksheep.org; Sun, 22 Feb 2004 23:06:45 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <001f01c3f998$859cd920$6507a8c0@Main> From: "Alan Melia" To: "LF-Group" Date: Sun, 22 Feb 2004 23:06:30 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Fw: the "unsubscribes " Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Resend of earlier message You must get the syntax EXACT or it will not work. No subject is required the command MUST be in the message body and MUST start at the left margin .....no leading spaces. Alan G3NYK ----- Original Message ----- From: "Alan Melia" To: "LF-Group" Sent: 16 February 2004 19:21 Subject: the "unsubscribes " > Hi I think you need a space after the command "unsubscribe" not an underline > for it to work...I have not checked again reccentlybut I believe the command > is > > unsubscribe rsgb_lf_group > end > > The "end" is only necessary if you have all sorts of MIME rubbish attached > to the end of your mails. > > Come back soon !! > Cheers de Alan G3NYK > alan.melia@btinternet.com > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 16986 invoked from network); 22 Feb 2004 19:45:00 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore02.plus.net with SMTP; 22 Feb 2004 19:45:00 -0000 Received: (qmail 42002 invoked from network); 22 Feb 2004 19:45:00 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 22 Feb 2004 19:44:59 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AuzX9-000Ao9-5J for dave@picks.force9.co.uk; Sun, 22 Feb 2004 19:44:59 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AuzWS-0003Kc-GK for rs_out@blacksheep.org; Sun, 22 Feb 2004 19:44:16 +0000 Received: from [194.73.73.147] (helo=einsteinium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AuzWR-0003KT-UG for rsgb_lf_group@blacksheep.org; Sun, 22 Feb 2004 19:44:16 +0000 Received: from [81.131.230.123] (helo=Main) by einsteinium.btinternet.com with smtp (Exim 3.22 #25) id 1AuzWQ-0000en-00 for rsgb_lf_group@blacksheep.org; Sun, 22 Feb 2004 19:44:15 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <001c01c3f97c$38d2b5e0$6507a8c0@Main> From: "Alan Melia" To: rsgb_lf_group@blacksheep.org References: <4038BBC4.4E1CBE1A@att.net> Date: Sun, 22 Feb 2004 19:43:55 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: 162 and 177 kHz BC in NC Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hi Dex, yes its be quiet geomagnetically for some days now, and the DCF39 plot at Steve W3EEE site showed good levels last night but there was a lot of deep fading. NOAA predictions suggest present conditions should persist for at least another two or three days. I note that Joe got a listener report from Germany as well. Cheers de Alan G3NYK alan.melia@btinternet.com ----- Original Message ----- From: "Dexter McIntyre W4DEX" To: "RSGB LF" ; "lowfer" ; "Longwave Message Board" Sent: 22 February 2004 14:25 Subject: LF: 162 and 177 kHz BC in NC > While copying TAG running GBPSK on 185.800 kHz with 400 Hz IF last night > I couldn't help noticing the strong sidebands from Europe 1. The 183 > kHz was very strong but not in the clear. I could not determine if > there was another BC signal on the frequency or if I had something local > distorting the audio. So I tuned down band and found a useable signal > from Germany on 177 kHz and a very good signal from France on 162 kHz. > I have uploaded a few short clips cut from recordings I made between > 0400 and 0500 UT. The 177 kHz signal was much better at 0430 but I did > not record that frequency until after 0500 UT. It isn't real good but > couldn't mistake hearing the Beetles "I Want to Hold Your Hand". > > .wav files are available from this directory: > > http://w4dex.com/lfbc/22feb04/ > > Dex > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 26499 invoked from network); 22 Feb 2004 12:23:17 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore03.plus.net with SMTP; 22 Feb 2004 12:23:17 -0000 Received: (qmail 88162 invoked from network); 22 Feb 2004 12:23:17 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 22 Feb 2004 12:23:16 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1Ausdg-000MoU-44 for dave@picks.force9.co.uk; Sun, 22 Feb 2004 12:23:16 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Ausbb-0006E5-An for rs_out@blacksheep.org; Sun, 22 Feb 2004 12:21:07 +0000 Received: from [194.73.73.81] (helo=tungsten.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1Ausba-0006Dw-Qz for rsgb_lf_group@blacksheep.org; Sun, 22 Feb 2004 12:21:06 +0000 Received: from [213.122.155.212] (helo=Main) by tungsten.btinternet.com with smtp (Exim 3.22 #25) id 1AusbV-0005pm-00 for rsgb_lf_group@blacksheep.org; Sun, 22 Feb 2004 12:21:01 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <002601c3f93e$478b35a0$6507a8c0@Main> From: "Alan Melia" To: "LF-Group" Date: Sun, 22 Feb 2004 12:08:36 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: WOLF development Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hi Stewart, with reference to R2, I suppose the injection of the 1pps into the RX input with provide some "pseudo-Loran" lines for frequency locking. If the 1pps was used to "key" a simple 136khz oscillator, this would produce a comb of 1Hz spaced lines in the right area all locked to the GPS. This would allow easy control of their level, which is often a problem when putting a calibration signal up even on QRSS. This is a technique of frequency synthesis used back in the old days when PLLs occupied a couple of racks and consumed a few kW. The necessity to use an SSB filter width might be a problem in Europe where there are many strong signals around. I presume that the rise-time with a narrower filter is the problem extracting accurate enough timing?? Having got frequency sync data at RF could timing data be put into the soundcard at audio....possibly on the other channel? Great ....I look forward to seeing the final solution. Cheers de Alan G3NYK alan.melia@btinternet.com From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 70957 invoked from network); 21 Feb 2004 16:05:58 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore04.plus.net with SMTP; 21 Feb 2004 16:05:58 -0000 Received: (qmail 87077 invoked from network); 21 Feb 2004 16:05:57 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 21 Feb 2004 16:05:57 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AuZdc-000MXR-TE for dave@picks.force9.co.uk; Sat, 21 Feb 2004 16:05:57 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AuZd2-0000v5-QW for rs_out@blacksheep.org; Sat, 21 Feb 2004 16:05:20 +0000 Received: from [194.73.73.111] (helo=gadolinium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AuZd2-0000uu-89 for rsgb_lf_group@blacksheep.org; Sat, 21 Feb 2004 16:05:20 +0000 Received: from [81.131.231.28] (helo=Main) by gadolinium.btinternet.com with smtp (Exim 3.22 #25) id 1AuZd1-0007in-00 for rsgb_lf_group@blacksheep.org; Sat, 21 Feb 2004 16:05:19 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <001201c3f894$78b0b240$6507a8c0@Main> From: "Alan Melia" To: rsgb_lf_group@blacksheep.org References: <3d.3b045f16.2d68b1a4@aol.com> Date: Sat, 21 Feb 2004 16:05:01 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: Re: LF: 3B9C Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hi Dave...WHAT LF "SEASON" ....it is certainly not a Propagation "season", summer Dx was better last year than during the autumn. Anyway conditions are just starting to improve for the next 4 years or so !! Enjoy the EME..I dont reckon you will work many in the TerrorHurts frequencies. Cheers de Alan G3NYK ----- Original Message ----- From: To: Sent: 21 February 2004 13:05 Subject: Re: LF: 3B9C > In a message dated 2/21/04 10:27:25 AM GMT Standard Time, > tom@telemetry.demon.co.uk writes: > > > David > > > > Yes but are you going to put 3B9C on 136?? > > > > 73, Tom G3OLB > > > > > > Well spotted Tom. > > I am off to Rodrigues with the 3B9C team but unfortunately no 136kHz. I did > consider taking receiver 'bits' and looking for EU VK or ZL.........It was > even close to the Russian operation.....but it's getting late in the LF > season and a long way south. > I'll have to be satisfied with EME SAT and SSTV. > > Hope to see everyone on the LF reflector somewhere in the 3B9C log. > > 73 > > David G0MRF Web site 3B9C > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 4251 invoked from network); 21 Feb 2004 01:06:20 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore03.plus.net with SMTP; 21 Feb 2004 01:06:20 -0000 Received: (qmail 73576 invoked from network); 21 Feb 2004 01:06:20 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 21 Feb 2004 01:06:19 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AuLb0-000J1L-VW for dave@picks.force9.co.uk; Sat, 21 Feb 2004 01:06:19 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AuLaA-00048V-JY for rs_out@blacksheep.org; Sat, 21 Feb 2004 01:05:26 +0000 Received: from [194.73.73.111] (helo=gadolinium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AuLaA-00048M-2h for rsgb_lf_group@blacksheep.org; Sat, 21 Feb 2004 01:05:26 +0000 Received: from [81.135.2.216] (helo=Main) by gadolinium.btinternet.com with smtp (Exim 3.22 #25) id 1AuLa9-0003FU-00 for rsgb_lf_group@blacksheep.org; Sat, 21 Feb 2004 01:05:25 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <002301c3f816$cc105fe0$6507a8c0@Main> From: "Alan Melia" To: rsgb_lf_group@blacksheep.org References: <131.2a3ec779.2d67f908@aol.com> Date: Sat, 21 Feb 2004 00:51:30 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: G0MIN or good things come to those who wait. Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Where did you hide your big hammer Dave ?? Alan G3NYK ----- Original Message ----- From: To: Sent: 20 February 2004 23:58 Subject: LF: G0MIN or good things come to those who wait. > > > Some time ago my local club station at Whitton operated 73 and 136kHz on a > Friday night. > This was a great learning experience for the club members as usually > something dramatic would happen. Unfortunately we had to close the LF operation as > some fast growing conifers became entangled with the antenna. As they belonged to > the church next to the community centre there wasn't very much we could > do.........G0MIN QRT! > > 6 months ago some nasty looking cracks appeared in one of the community > centre's walls and after an inspection the local authority decided the trees were > responsible. > > Earlier this week 6 trees were felled and we now have an unobstructed wire > 250 feet long with the far end attached to the church 90ft AGL. > > So from next week we'll be back on a Friday evening with something between > 500mW and 1W ERP. Yippee It's been too long. > > 73 > > David G0MRF > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 40847 invoked from network); 20 Feb 2004 21:04:20 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore01.plus.net with SMTP; 20 Feb 2004 21:04:20 -0000 Received: (qmail 38809 invoked from network); 20 Feb 2004 21:07:15 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 20 Feb 2004 21:07:13 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AuHrd-0009s0-KW for dave@picks.force9.co.uk; Fri, 20 Feb 2004 21:07:13 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AuHqx-0004oV-Io for rs_out@blacksheep.org; Fri, 20 Feb 2004 21:06:31 +0000 Received: from [194.73.73.147] (helo=einsteinium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AuHqx-0004oM-26 for rsgb_lf_group@blacksheep.org; Fri, 20 Feb 2004 21:06:31 +0000 Received: from [213.122.135.37] (helo=Main) by einsteinium.btinternet.com with smtp (Exim 3.22 #25) id 1AuHqv-0000Ik-00 for rsgb_lf_group@blacksheep.org; Fri, 20 Feb 2004 21:06:30 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <000e01c3f7f5$683bbee0$6507a8c0@Main> From: "Alan Melia" To: "LF-Group" Date: Fri, 20 Feb 2004 21:06:22 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Brian......more at the usual page Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hi all, sorry again,....an Internet (Lack of) Service Provider problem....its no wonder his name starts with a "V"....no not the UK one !! Cheers Alan G3NYK From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 81028 invoked from network); 20 Feb 2004 20:21:37 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore02.plus.net with SMTP; 20 Feb 2004 20:21:37 -0000 Received: (qmail 60753 invoked from network); 20 Feb 2004 20:21:37 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 20 Feb 2004 20:21:36 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AuH9U-000FgU-MK for dave@picks.force9.co.uk; Fri, 20 Feb 2004 20:21:36 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AuH92-0003AA-8I for rs_out@blacksheep.org; Fri, 20 Feb 2004 20:21:08 +0000 Received: from [194.73.73.147] (helo=einsteinium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AuH91-0003A1-Oq for rsgb_lf_group@blacksheep.org; Fri, 20 Feb 2004 20:21:07 +0000 Received: from [213.122.31.225] (helo=Main) by einsteinium.btinternet.com with smtp (Exim 3.22 #25) id 1AuH90-0003gT-00 for rsgb_lf_group@blacksheep.org; Fri, 20 Feb 2004 20:21:07 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <001e01c3f7ef$1084f820$6507a8c0@Main> From: "Alan Melia" To: rsgb_lf_group@blacksheep.org References: <000701c3f7a9$3efe6920$6507a8c0@Main> <002901c3f7e4$ef6b59e0$a71279d1@jsm> Date: Fri, 20 Feb 2004 20:20:48 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: Antenna Insulators Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hi Steve, I am not an expert on this but Ralph has used this kind of pipe for his 166.5 Part 5 beacon. Now, he has had troubles with burnt up tube, now solved I believe. As far as I understand, the problem comes with corona discharge which carbonises the plastic which then conducts and eventually burns up. The "trick" I think is to attach anti-corona rings to the end insulator so the high voltage terminates on a largish radius-of-curvature, rather than a cut wire end ( which is most likely to stimulate corona) I think Ralph has pics on his web site. Jim recommends a ring of thick wire about 3ins diameter. I think this should also be done wherever there must be sharp changes in direction, unless you can dress the changes in direction into a smooth curve. Corona certainly seems to become a problem above about 150 - 200 W on 136kHz. Hopefully Jim will add his comments Cheers de Alan G3NYK alan.melia@btinternet.com ----- Original Message ----- From: "Steve McDonald" To: Sent: 20 February 2004 19:08 Subject: LF: Antenna Insulators > > Has anyone had success using white PVC pipe (say ~ 1.5" dia) for insulators? > I am wondering if a 12 -18" piece at the voltage ends of my flatop would be > enough to prevent any flash-over? > > Steve / VE7SL > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 81204 invoked from network); 20 Feb 2004 12:02:38 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore03.plus.net with SMTP; 20 Feb 2004 12:02:38 -0000 Received: (qmail 11445 invoked from network); 20 Feb 2004 12:02:38 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 20 Feb 2004 12:02:37 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1Au9Mb-0002ql-1k for dave@picks.force9.co.uk; Fri, 20 Feb 2004 12:02:37 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Au9LZ-0004Ad-FC for rs_out@blacksheep.org; Fri, 20 Feb 2004 12:01:33 +0000 Received: from [194.73.73.147] (helo=einsteinium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1Au9LY-0004AU-UN for rsgb_lf_group@blacksheep.org; Fri, 20 Feb 2004 12:01:33 +0000 Received: from [213.122.61.183] (helo=Main) by einsteinium.btinternet.com with smtp (Exim 3.22 #25) id 1Au9LX-0003Z1-00 for rsgb_lf_group@blacksheep.org; Fri, 20 Feb 2004 12:01:32 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <000701c3f7a9$3efe6920$6507a8c0@Main> From: "Alan Melia" To: "LF-Group" Date: Fri, 20 Feb 2004 12:01:06 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Brian...yet another bounce Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hi Brian ...in the usual place Sorry all Alan From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 81701 invoked from network); 19 Feb 2004 00:17:31 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore04.plus.net with SMTP; 19 Feb 2004 00:17:31 -0000 Received: (qmail 39263 invoked from network); 19 Feb 2004 00:17:31 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 19 Feb 2004 00:17:30 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1Atbsg-000A4m-0H for dave@picks.force9.co.uk; Thu, 19 Feb 2004 00:17:30 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Atbrp-0005nc-Is for rs_out@blacksheep.org; Thu, 19 Feb 2004 00:16:37 +0000 Received: from [194.73.73.111] (helo=gadolinium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1Atbro-0005nT-VR for rsgb_lf_group@blacksheep.org; Thu, 19 Feb 2004 00:16:37 +0000 Received: from [213.122.24.90] (helo=Main) by gadolinium.btinternet.com with smtp (Exim 3.22 #25) id 1Atbro-0003g3-00 for rsgb_lf_group@blacksheep.org; Thu, 19 Feb 2004 00:16:36 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <002001c3f67d$a7795f00$6507a8c0@Main> From: "Alan Melia" To: rsgb_lf_group@blacksheep.org References: Date: Thu, 19 Feb 2004 00:10:38 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: RF Current meter Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hi Gary you will just get more volts out of it at higher curent......if that drives the meter off-scale reduce the number of secondary turns, or use a potential divider to reduce the voltage. RF Thermo ammeters can be shunted, but my experiments so far suggest that the scale does not quite "scale"...even taking care to use a "four terminal" connection to avoid contact resistances......I'm still working on that one. I dont think it was you testng this afternoon unless you now have a 1000ft tower and 10kW :-)) Cheers de Alan G3NYK alan.melia@btinternet.com ----- Original Message ----- From: "G4WGT - Gary" To: "Rsgb_Lf_Group" Sent: 18 February 2004 20:01 Subject: LF: RF Current meter > Hi all at LF, > > I have been conducting tests with QRS & DFCW now that I have completed the > DDS VFO & the antenna is back up after storm damage & everything seems to be > ok. > > The main reason for this e-mail is to ask this question, > > "When I have looked at designs in amateur radio magazines or internet for a > clip on RF Ammeter the designs seem to be limited to 2 ranges (100mA & 1A > FSD), is there a limit to the range of this type RF Ammeter or can the > ranges be extented to say 5 Amps maybe? is there a calculation to extend the > range ?" > > My LF antenna seems to be showing in excess of one Amp so I need an RF > Ammeter with a greater range than 1A. > > 73 > > Gary - G4WGT > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 53500 invoked from network); 18 Feb 2004 17:57:05 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore01.plus.net with SMTP; 18 Feb 2004 17:57:05 -0000 Received: (qmail 42962 invoked from network); 18 Feb 2004 17:59:37 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 18 Feb 2004 17:59:36 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AtVyy-000B3E-3p for dave@picks.force9.co.uk; Wed, 18 Feb 2004 17:59:36 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AtVy8-0003Kk-Uf for rs_out@blacksheep.org; Wed, 18 Feb 2004 17:58:44 +0000 Received: from [194.73.73.147] (helo=einsteinium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AtVy8-0003Kb-Fj for rsgb_lf_group@blacksheep.org; Wed, 18 Feb 2004 17:58:44 +0000 Received: from [213.122.167.149] (helo=Main) by einsteinium.btinternet.com with smtp (Exim 3.22 #25) id 1AtVy7-0006dP-00 for rsgb_lf_group@blacksheep.org; Wed, 18 Feb 2004 17:58:44 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <000901c3f648$d86b6160$6507a8c0@Main> From: "Alan Melia" To: "LF-Group" Date: Wed, 18 Feb 2004 17:58:34 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Testing on 137 ?? Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hi all, I had a very strong (almost saturation for my AGC-off system) stable carrier on 137.00kHz this afternoon which eventually went on 200Hz peak deviation sawtooth modulation...initially quite fast but later slowing ....no callsign detected ?? Cheers de Alan G3NYK alan.melia@btinternet.com From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 4628 invoked from network); 18 Feb 2004 16:10:30 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore01.plus.net with SMTP; 18 Feb 2004 16:10:30 -0000 Received: (qmail 91321 invoked from network); 18 Feb 2004 16:13:02 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 18 Feb 2004 16:12:59 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AtUJm-000Mr9-Rh for dave@picks.force9.co.uk; Wed, 18 Feb 2004 16:12:58 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AtUIu-0008NJ-FB for rs_out@blacksheep.org; Wed, 18 Feb 2004 16:12:04 +0000 Received: from [194.73.73.111] (helo=gadolinium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AtUIt-0008NA-Vz for rsgb_lf_group@blacksheep.org; Wed, 18 Feb 2004 16:12:04 +0000 Received: from [213.122.191.216] (helo=Main) by gadolinium.btinternet.com with smtp (Exim 3.22 #25) id 1AtUIt-0001W0-00 for rsgb_lf_group@blacksheep.org; Wed, 18 Feb 2004 16:12:03 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <000701c3f639$efd6b3e0$6507a8c0@Main> From: "Alan Melia" To: "LF-Group" Date: Wed, 18 Feb 2004 16:11:55 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Brian...sorry reloaded pic Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hi all, sorry Brian's ISP is sporadically refusing e-mail from BT, due to an incompetant use of blacklisting and anti-virus software. Brian....Pic reloaded to web site not my local folder now !! Sorry Alan From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 7256 invoked from network); 13 Feb 2004 11:26:02 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore03.plus.net with SMTP; 13 Feb 2004 11:26:02 -0000 Received: (qmail 72053 invoked from network); 13 Feb 2004 11:26:02 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 13 Feb 2004 11:26:01 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1ArbSL-000Ic3-6a for dave@picks.force9.co.uk; Fri, 13 Feb 2004 11:26:01 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ArbRO-0002S2-Li for rs_out@blacksheep.org; Fri, 13 Feb 2004 11:25:02 +0000 Received: from [194.73.73.93] (helo=rhenium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1ArbRO-0002Rt-4y for rsgb_lf_group@blacksheep.org; Fri, 13 Feb 2004 11:25:02 +0000 Received: from [81.135.56.30] (helo=Main) by rhenium.btinternet.com with smtp (Exim 3.22 #25) id 1ArbRN-00057F-00 for rsgb_lf_group@blacksheep.org; Fri, 13 Feb 2004 11:25:01 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <002a01c3f223$faac9f60$6507a8c0@Main> From: "Alan Melia" To: rsgb_lf_group@blacksheep.org References: <8840D182F8BB7540B173D2B1FA0CA9AB018AE32F@argos.clb.tcfr.thales> Date: Fri, 13 Feb 2004 11:24:35 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: Re: LF: Timing GPS Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hello again Jean-Louis. I had thought about that ( software clock drift dependent on cpu usage) and wondered whether it would be possible to force the software clock to sync with the hardware clock at regular intervals (say 30 mins) using the scheduler. This could possibly be run behind the capture program if not incorporated into it ?? I am not sufficiently knowledgable about windows to now how to do it. Cheers de Alan G3NYK alan.melia@btinternet.com ----- Original Message ----- From: To: Sent: 13 February 2004 08:59 Subject: RE: LF: Timing GPS Hi all Please keep in mind that Windows operating systems are very poor "time keepers". They drift very quickly, depending on the programs you are running. A drift of one second up to one minute per day is not uncommon (specially with "data crunchers" softwares like real time FFT computing)! I'm not talking about the drift of the PC hardware clock itself which is quite good (the time base xtal oscillator drifts around 2 s per month on my own computer), but from the Windows time management. It seems that the time management on the Windows multitask OS has a very low priority ... I verified this on Windows 95, Windows 98 and Windows Me. Any other experience with other operating systems ? 73 de Jean-Louis F6AGR From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 45643 invoked from network); 12 Feb 2004 23:05:52 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore04.plus.net with SMTP; 12 Feb 2004 23:05:52 -0000 Received: (qmail 95805 invoked from network); 12 Feb 2004 23:05:52 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 12 Feb 2004 23:05:51 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1ArPu2-000Ont-Ot for dave@picks.force9.co.uk; Thu, 12 Feb 2004 23:05:50 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ArPtR-0004d4-Ez for rs_out@blacksheep.org; Thu, 12 Feb 2004 23:05:13 +0000 Received: from [194.73.73.89] (helo=uranium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1ArPtQ-0004cv-Vj for rsgb_lf_group@blacksheep.org; Thu, 12 Feb 2004 23:05:13 +0000 Received: from [213.122.176.164] (helo=Main) by uranium.btinternet.com with smtp (Exim 3.22 #25) id 1ArPtQ-0001Ck-00 for rsgb_lf_group@blacksheep.org; Thu, 12 Feb 2004 23:05:12 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <001a01c3f1bc$ad30ad60$6507a8c0@Main> From: "Alan Melia" To: rsgb_lf_group@blacksheep.org References: <20040210184134.KTHX20454.tomts35-srv.bellnexxia.net@smtp.bellnexxia.net> <402A6646.4030006@virgin.net> <1ArPAc-19FrkH0@fwd00.sul.t-online.com> Date: Thu, 12 Feb 2004 23:05:08 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: Re: LF: Timing GPS Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hi Uwe, is it not possible to allow for the delay down the connecting wire to the NTP sever. In the days I played TCP/IL over packet the PING facility gave the round-trip delay for paths through regenerators, and packet nodes. At least that software might be useful for keeping my home network all in sync Cheers de Alan G3NYK alan.melia@btinternet.com ----- Original Message ----- From: "jannsen" <0482183881-0001@t-online.de> To: Sent: 12 February 2004 22:18 Subject: Re: LF: Timing GPS > Hi Stewart es All, > I do some PC clock synchronizations via internet using the program > "Time Watch", downloaded from http://www.blue-series.de. the NTP server > transmitting the synchronization signals must be in your vicinity. > it is not usefull telling us that their timer is <1uS accurate > (in my case dirived from GPS receivings) if there is a long wire to the > server. it`s something else if you would know the phase fault on the line > and can correct it in some way. > > reading the PC clock in mSec from the window "Time Decoder" of SpecLab > of one PC with the clock (motherboard and sound card) permanent > synchronized by the standard time signal station DCF77 and at the > same time reading the mSec from the screen of the other PC just > clocking by the signals from the internet server, I believe I see > a difference, DCF77 in front. > > be that as it may, we should reach an agreement about what kind of > synchronization we will make use of. > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 11932 invoked from network); 11 Feb 2004 12:05:37 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by mailstore with SMTP; 11 Feb 2004 12:05:37 -0000 Received: (qmail 9398 invoked from network); 11 Feb 2004 12:05:36 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 11 Feb 2004 12:05:35 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1Aqt7X-0002Ic-BO for dave@picks.force9.co.uk; Wed, 11 Feb 2004 12:05:35 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Aqt6M-0001aI-Ox for rs_out@blacksheep.org; Wed, 11 Feb 2004 12:04:22 +0000 Received: from [194.73.73.176] (helo=protactinium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1Aqt6M-0001a9-7X for rsgb_lf_group@blacksheep.org; Wed, 11 Feb 2004 12:04:22 +0000 Received: from [81.131.246.104] (helo=Main) by protactinium.btinternet.com with smtp (Exim 3.22 #25) id 1Aqt6I-0007mW-00 for rsgb_lf_group@blacksheep.org; Wed, 11 Feb 2004 12:04:18 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <000701c3f097$27e123e0$6507a8c0@Main> From: "Alan Melia" To: "LF-Group" Date: Wed, 11 Feb 2004 12:02:22 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: 136kHz DX Propagation Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hi all, geomagnetic activity has been "quiet" for several days now and the night-time paths are improving steadily. The DCF39 plot for the 10/11th at Steve Dove's site (W3EEE) shows the best levels I have seen since January 2003, with best time around 0600z and little fading at all through the night. Despite this I only have weak suggestions (no character seen) of Joe VO1NA's signal here last night. He is operating with a reduced efficiency aerial at present. CFH is inactive at present. NOAA SEC forecast an increase to minor storm levels (Kp=5) on the 12/13th ( though they do not seem to be aware that the current month is February !! ) as a coronal hole becomes geoeffective again. I do not expect this (if it occurs) to have any radio effects before the 15/16th so we have a window of about 5 days at present. Happy Hunting Cheers de Alan G3NYK alan.melia@btinternet.com Full report on www.alan.melia.btinternet.co.uk/lastest.htm From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 27345 invoked from network); 10 Feb 2004 16:44:54 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore01.plus.net with SMTP; 10 Feb 2004 16:44:54 -0000 Received: (qmail 28383 invoked from network); 10 Feb 2004 16:46:02 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 10 Feb 2004 16:45:58 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1Aqb1K-00076k-R0 for dave@picks.force9.co.uk; Tue, 10 Feb 2004 16:45:58 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Aqb0Q-0002x5-Iw for rs_out@blacksheep.org; Tue, 10 Feb 2004 16:45:02 +0000 Received: from [194.73.73.147] (helo=einsteinium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1Aqb0Q-0002ww-0u for rsgb_lf_group@blacksheep.org; Tue, 10 Feb 2004 16:45:02 +0000 Received: from [213.122.52.185] (helo=Main) by einsteinium.btinternet.com with smtp (Exim 3.22 #25) id 1Aqb0O-0001ha-00 for rsgb_lf_group@blacksheep.org; Tue, 10 Feb 2004 16:45:00 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <001101c3eff5$3a6920a0$6507a8c0@Main> From: "Alan Melia" To: rsgb_lf_group@blacksheep.org References: <7D653C9C42F5D411A27C00508BF8803D01A9F415@mail.dstl.gov.uk> Date: Tue, 10 Feb 2004 16:44:47 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: Re: LF: Timing GPS Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hi both look for the Radiosonde transmitters on eBay. I believe ther are two types one with GPS and one without. They sell for about £12. The GPS module does not supply all the nmea strings but it does have time and 1 sec ticks I believe. Cheers de Alan G3NYK alan.melia@btinternet.com ----- Original Message ----- From: "Talbot Andrew" To: Sent: 10 February 2004 15:56 Subject: RE: LF: Timing GPS Well... If you really want to play on the cheap and your ETrax has no PPS output, I suppose it is remotely feasible the leading edge of the NMEA string is probably consistent from second to second to within a few tens of microseconds - but you'd need to measure its absolute delay somehow which means having access to a true UTC related PPS Perhaps we could do with a measurement session at some future LF Roundtable There are (or at least were) some very cheap GPS modules on the surplus market - I got an Oncore from someone who had originally paid just a few pounds for it. Andy G4JNT -----Original Message----- From: G0MRF@aol.com [mailto:G0MRF@aol.com] Sent: 2004 February 10 15:36 To: rsgb_lf_group@blacksheep.org Subject: Re: LF: Timing GPS In a message dated 2/10/04 12:35:33 PM GMT Standard Time, ACTALBOT@mail.dstl.gov.uk writes: Well, I was really thinking of GPS locked PSK rather than any incoherent mode. WIthout the need for clock and frame timing recovery we could scrape every possible advantage for coherent signalling. With such superb accuarcy of timing even without carrier recovery, it seems a pity to throw all the advantages away by using on-off keyed power detection. I did some basic tests last year with GPS locked 1 B/s PSK and with a very simple decoder managed to receive down to frighteningly low signal levels. Andy G4JNT Andy / group. Would be happy to try this if there is a way of using the NEMA output from my e-trex venture. No problem with a little home constructing, but would prefer not to spend £86. 73 David "This e-mail is intended for the recipient only. If you are not the intended recipient you must not use, disclose, distribute, copy, print, or rely upon this e-mail. If an addressing or transmission error has misdirected this e-mail, please notify the author by replying to this e-mail." "Recipients should note that all e-mail traffic on MOD systems is subject to monitoring and auditing." From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 28660 invoked from network); 9 Feb 2004 13:59:14 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore01.plus.net with SMTP; 9 Feb 2004 13:59:14 -0000 Received: (qmail 11418 invoked from network); 9 Feb 2004 14:00:11 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 9 Feb 2004 14:00:10 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AqBxJ-0002qK-UT for dave@picks.force9.co.uk; Mon, 09 Feb 2004 14:00:10 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AqBwT-0000mY-WB for rs_out@blacksheep.org; Mon, 09 Feb 2004 13:59:17 +0000 Received: from [194.73.73.176] (helo=protactinium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AqBwT-0000mP-FV for rsgb_lf_group@blacksheep.org; Mon, 09 Feb 2004 13:59:17 +0000 Received: from [213.122.181.94] (helo=Main) by protactinium.btinternet.com with smtp (Exim 3.22 #25) id 1AqBwN-0006By-00 for rsgb_lf_group@blacksheep.org; Mon, 09 Feb 2004 13:59:12 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <002101c3ef14$e342dc20$6507a8c0@Main> From: "Alan Melia" To: "LF-Group" Date: Mon, 9 Feb 2004 13:58:28 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: T/A 8/9th agn Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hi all, the propagation did not favour me last night. I have one vague trace of Joe, that one would only spot by knowing the frequency to within 0.1Hz. I guess the fading did not act constructively for me. The plot from Steve was quite good but there was a lot of fading and unlike my early posting it was quite rapid, effectively lowering the level for a good copy. Geomag conditions seem to be quietening again now so it may well be getting better night by night. Cheers de Alan G3NYK alan.melia@btinternet.com From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 16931 invoked from network); 9 Feb 2004 00:36:44 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore03.plus.net with SMTP; 9 Feb 2004 00:36:44 -0000 Received: (qmail 82797 invoked from network); 9 Feb 2004 00:36:44 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 9 Feb 2004 00:36:43 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1ApzPn-000LQE-JV for dave@picks.force9.co.uk; Mon, 09 Feb 2004 00:36:43 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ApzPR-0000Bh-56 for rs_out@blacksheep.org; Mon, 09 Feb 2004 00:36:21 +0000 Received: from [194.73.73.92] (helo=carbon.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1ApzPQ-0000BY-PG for rsgb_lf_group@blacksheep.org; Mon, 09 Feb 2004 00:36:20 +0000 Received: from [81.131.225.93] (helo=Main) by carbon.btinternet.com with smtp (Exim 3.22 #25) id 1ApzPQ-00035q-00 for rsgb_lf_group@blacksheep.org; Mon, 09 Feb 2004 00:36:20 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <000401c3eea4$bc113f40$6507a8c0@Main> From: "Alan Melia" To: rsgb_lf_group@blacksheep.org References: <000d01c3eea3$161bb3a0$6507a8c0@Main> Date: Mon, 9 Feb 2004 00:36:17 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: T/A 8/9th Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 It looks quite good so far on Steve Dove's DCF39 plot. 2400z levels are up on last night and the fade length is approaching an hour......still no sign of Joe here......maybe the snowman got him!! Alan ----- Original Message ----- From: "Alan Melia" To: "LF-Group" Sent: 09 February 2004 00:24 Subject: LF: T/A 8/9th > Hi Peter and Dex, no sign of Joe here yet but I have a very high noise level > at present. > > Good Luck > Cheers de Alan G3NYK > alan.melia@btinternet.com > > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 96510 invoked from network); 9 Feb 2004 00:24:23 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore01.plus.net with SMTP; 9 Feb 2004 00:24:23 -0000 Received: (qmail 41956 invoked from network); 9 Feb 2004 00:25:14 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 9 Feb 2004 00:25:13 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1ApzEf-000Akx-BH for dave@picks.force9.co.uk; Mon, 09 Feb 2004 00:25:13 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ApzE1-0008PY-MV for rs_out@blacksheep.org; Mon, 09 Feb 2004 00:24:33 +0000 Received: from [194.73.73.92] (helo=carbon.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1ApzE1-0008PP-8O for rsgb_lf_group@blacksheep.org; Mon, 09 Feb 2004 00:24:33 +0000 Received: from [81.131.225.93] (helo=Main) by carbon.btinternet.com with smtp (Exim 3.22 #25) id 1ApzE0-0001tT-00 for rsgb_lf_group@blacksheep.org; Mon, 09 Feb 2004 00:24:32 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <000d01c3eea3$161bb3a0$6507a8c0@Main> From: "Alan Melia" To: "LF-Group" Date: Mon, 9 Feb 2004 00:24:27 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: T/A 8/9th Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hi Peter and Dex, no sign of Joe here yet but I have a very high noise level at present. Good Luck Cheers de Alan G3NYK alan.melia@btinternet.com From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 55483 invoked from network); 8 Feb 2004 17:37:56 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore02.plus.net with SMTP; 8 Feb 2004 17:37:56 -0000 Received: (qmail 44220 invoked from network); 8 Feb 2004 17:37:56 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 8 Feb 2004 17:37:54 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1ApssU-000BNY-Qh for dave@picks.force9.co.uk; Sun, 08 Feb 2004 17:37:54 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ApsrO-0001cv-Gh for rs_out@blacksheep.org; Sun, 08 Feb 2004 17:36:46 +0000 Received: from [194.73.73.93] (helo=rhenium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1ApsrO-0001cm-0A for rsgb_lf_group@blacksheep.org; Sun, 08 Feb 2004 17:36:46 +0000 Received: from [81.135.32.7] (helo=Main) by rhenium.btinternet.com with smtp (Exim 3.22 #25) id 1ApsrN-0002y9-00 for rsgb_lf_group@blacksheep.org; Sun, 08 Feb 2004 17:36:45 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <000601c3ee6a$0df96ca0$6507a8c0@Main> From: "Alan Melia" To: rsgb_lf_group@blacksheep.org References: <6.0.1.1.2.20040201150716.03705e90@POP3.freeler.nl> Date: Sun, 8 Feb 2004 17:36:11 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: Re: One leg again... Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hi, Good News Joe, Conditions were not too bad last night according to the plots at W3EEE. So it looks like it might be improving slowly. I will put ARGO on over-night Cheers de Alan G3NYK alan.melia@btinternet.com ----- Original Message ----- From: "Joe Craig" To: "LF-Group" Sent: 08 February 2004 16:17 Subject: LF: Re: One leg again... > Dear LF Group, > > After replacing guys on the tower, fighting fearsome fir > trees in chest-deep snow and getting a lot of much needed > exercise in the process, I'm pleased to report that half > my aerial is off the ground but at reduced height. It takes > 70 watts at 1.0 amp so ERP is down at least 6 dB, but I'll > run it tonight starting 2300 UTC 137.777 kHz, dot 30. > > 73 > Joe VO1NA > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 40022 invoked from network); 4 Feb 2004 14:21:26 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore01.plus.net with SMTP; 4 Feb 2004 14:21:26 -0000 Received: (qmail 22257 invoked from network); 4 Feb 2004 14:21:30 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 4 Feb 2004 14:21:29 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AoNuD-0005eu-5t for dave@picks.force9.co.uk; Wed, 04 Feb 2004 14:21:29 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AoNti-0000bn-A0 for rs_out@blacksheep.org; Wed, 04 Feb 2004 14:20:58 +0000 Received: from [194.73.73.111] (helo=gadolinium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AoNth-0000be-Py for rsgb_lf_group@blacksheep.org; Wed, 04 Feb 2004 14:20:57 +0000 Received: from [81.135.55.213] (helo=Main) by gadolinium.btinternet.com with smtp (Exim 3.22 #25) id 1AoNtg-0001rS-00 for rsgb_lf_group@blacksheep.org; Wed, 04 Feb 2004 14:20:57 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <000701c3eb2a$109bb6e0$6507a8c0@Main> From: "Alan Melia" To: rsgb_lf_group@blacksheep.org References: <6.0.1.1.2.20040204142244.032337e0@POP3.freeler.nl> Date: Wed, 4 Feb 2004 14:20:29 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: Manual SPM-3 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hi Dick, I have the W&G SPM-3 manual as four .PDF files which may be more convenient Cheers de Alan G3NYK alan.melia@btinternet.com ----- Original Message ----- From: "Dick Rollema" To: "LF-Group" Cc: Sent: 04 February 2004 13:26 Subject: LF: Manual SPM-3 > To All from PA0SE > > PA3DUK of The Hague has obtained a Wandel & Goltermann selective level > meter type SPM-3. But he has no manual for it. > Anyone knows where to find one? > > 73, Dick, PA0SE From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 18922 invoked from network); 3 Feb 2004 21:54:37 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore03.plus.net with SMTP; 3 Feb 2004 21:54:37 -0000 Received: (qmail 51411 invoked from network); 3 Feb 2004 21:54:37 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 3 Feb 2004 21:54:36 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1Ao8V9-000DFb-Vu for dave@picks.force9.co.uk; Tue, 03 Feb 2004 21:54:36 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Ao8Ts-0001Oo-1B for rs_out@blacksheep.org; Tue, 03 Feb 2004 21:53:16 +0000 Received: from [194.73.73.148] (helo=zinc.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1Ao8Tr-0001Of-Gb for rsgb_lf_group@blacksheep.org; Tue, 03 Feb 2004 21:53:15 +0000 Received: from [213.122.3.235] (helo=Main) by zinc.btinternet.com with smtp (Exim 3.22 #25) id 1Ao8Tq-0002F5-00 for rsgb_lf_group@blacksheep.org; Tue, 03 Feb 2004 21:53:15 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <001701c3eaa0$1e8670e0$6507a8c0@Main> From: "Alan Melia" To: rsgb_lf_group@blacksheep.org References: Date: Tue, 3 Feb 2004 21:52:31 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: RE: Re: Re: G0MRF 300w Tx & DDS VFO Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Yes Ok Gary, I guessed it was so. I just wondered whther you had a "tight" filter. The signal out of the chip (do be carefull here) should be a logic level ..i.e. 5v p-p I would have thought (??) Cheers de Alan G3NYK ----- Original Message ----- From: "G4WGT - Gary" To: Sent: 03 February 2004 20:01 Subject: LF: RE: Re: Re: G0MRF 300w Tx & DDS VFO > Hi Alan & LF, > > Thanks for the advise, but I did realise that the input is x2 ie. 274 Khz, > it's just that when testing the DDS VFO with the scope on the bench I did > the checks at those freq's mentioned. It is still no different at 274 Khz, > in fact at its best (15Mhz) it is only producing 300mV P-P & not the > expected 1V P-P. > > The sig comes out of the DDS IC thro' a 2 pole LPF to a buffer amp IC, the > sig is even lower at the unbuffered output(before the IC). I will have to > remove it from its case to trace back thro' the components. > > I will keep you posted > > 73 > > Gary - G4WGT > > > > -----Original Message----- > From: owner-rsgb_lf_group@blacksheep.org > [mailto:owner-rsgb_lf_group@blacksheep.org]On Behalf Of Alan Melia > Sent: 02 February 2004 22:12 > To: rsgb_lf_group@blacksheep.org > Subject: LF: Re: Re: G0MRF 300w Tx & DDS VFO > > > Hi Gary Ah you need 274kHz for the feed to the EXT pin it goes to the input > of a divide by two to give square wave drive to the PA stage. Still you > should be getting more than that out of it. It sounds as though something is > not right...50mV is far too low. Is there a LPF on the output?? It may be > that there is a component problem there. > > Cheers de Alan G3NYK > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 52350 invoked from network); 3 Feb 2004 00:38:55 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore01.plus.net with SMTP; 3 Feb 2004 00:38:55 -0000 Received: (qmail 16418 invoked from network); 3 Feb 2004 00:38:55 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 3 Feb 2004 00:38:54 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1Anoac-00049J-IA for dave@picks.force9.co.uk; Tue, 03 Feb 2004 00:38:54 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AnoZd-0006yW-He for rs_out@blacksheep.org; Tue, 03 Feb 2004 00:37:53 +0000 Received: from [194.73.73.92] (helo=carbon.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AnoZd-0006yN-4H for rsgb_lf_group@blacksheep.org; Tue, 03 Feb 2004 00:37:53 +0000 Received: from [81.131.231.225] (helo=Main) by carbon.btinternet.com with smtp (Exim 3.22 #25) id 1AnoZc-0000JJ-00 for rsgb_lf_group@blacksheep.org; Tue, 03 Feb 2004 00:37:52 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <001201c3e9ed$edc77a60$6507a8c0@Main> From: "Alan Melia" To: "LF-Group" Date: Tue, 3 Feb 2004 00:37:34 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: CFH very loud Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hi all, CFH is very loud here tonight (0030z) Cheers de Alan G3NYK alan.melia@btinternet.com From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 26376 invoked from network); 2 Feb 2004 22:21:10 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore04.plus.net with SMTP; 2 Feb 2004 22:21:10 -0000 Received: (qmail 914 invoked from network); 2 Feb 2004 22:21:10 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 2 Feb 2004 22:21:09 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AnmRJ-000055-8P for dave@picks.force9.co.uk; Mon, 02 Feb 2004 22:21:09 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AnmQf-0001bP-Bb for rs_out@blacksheep.org; Mon, 02 Feb 2004 22:20:29 +0000 Received: from [194.73.73.89] (helo=uranium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AnmQe-0001bG-SZ for rsgb_lf_group@blacksheep.org; Mon, 02 Feb 2004 22:20:28 +0000 Received: from [213.122.209.159] (helo=Main) by uranium.btinternet.com with smtp (Exim 3.22 #25) id 1AnmQd-0007cM-00 for rsgb_lf_group@blacksheep.org; Mon, 02 Feb 2004 22:20:28 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <000101c3e9da$b9c8e900$6507a8c0@Main> From: "Alan Melia" To: rsgb_lf_group@blacksheep.org References: Date: Mon, 2 Feb 2004 22:11:48 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: Re: G0MRF 300w Tx & DDS VFO Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hi Gary Ah you need 274kHz for the feed to the EXT pin it goes to the input of a divide by two to give square wave drive to the PA stage. Still you should be getting more than that out of it. It sounds as though something is not right...50mV is far too low. Is there a LPF on the output?? It may be that there is a component problem there. Cheers de Alan G3NYK ----- Original Message ----- From: "G4WGT - Gary" To: "Rsgb_Lf_Group" Sent: 02 February 2004 21:21 Subject: LF: Re: G0MRF 300w Tx & DDS VFO > Hi to Alan, David, Laurence & LF, > > Thanks for your replies & suggestions, I was not able to get any output with > any of the arrangements. I then put the DDS VFO on the scope & found that > the output at 137 KHz is only 50mV P-P & at 15 MHz is still low at only > 300mV then its down to 50mV at its high end of 40 MHz, so its no were near > its so called spec of 1V P-P. I will have to investigate further. May be the > answer is an intermediate amplifier. > > 73 > > Gary - G4WGT > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 34124 invoked from network); 1 Feb 2004 23:35:51 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore01.plus.net with SMTP; 1 Feb 2004 23:35:51 -0000 Received: (qmail 28720 invoked from network); 1 Feb 2004 23:35:51 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 1 Feb 2004 23:35:50 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AnR82-0007LV-6N for dave@picks.force9.co.uk; Sun, 01 Feb 2004 23:35:50 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AnR7Q-0003XN-4C for rs_out@blacksheep.org; Sun, 01 Feb 2004 23:35:12 +0000 Received: from [194.73.73.92] (helo=carbon.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AnR7P-0003XE-K9 for rsgb_lf_group@blacksheep.org; Sun, 01 Feb 2004 23:35:11 +0000 Received: from [213.122.186.203] (helo=Main) by carbon.btinternet.com with smtp (Exim 3.22 #25) id 1AnR7O-0005bz-00 for rsgb_lf_group@blacksheep.org; Sun, 01 Feb 2004 23:35:11 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <002a01c3e91c$0c8673c0$6507a8c0@Main> From: "Alan Melia" To: rsgb_lf_group@blacksheep.org References: <002001c3e91a$09af22c0$ade486d4@erica> Date: Sun, 1 Feb 2004 23:35:14 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: Re: RF level meter Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hi Peter I have a couple of Racl-Dana 5002s here. They give that message when the back-up Li-batt has gone down or been replaced. There are a set of buttones that you push to clear the message. With the 5002 the clear is "special function 97.1 " I think the clear is by pressing 0 (that is zero), SHIFT , SF (that is the special function key) in sequence. That will clear the message if the batt is above 2.8V It should stay clear. I hope that helps.......my 5002s are not as useful as athey are wide band rather than selective, and are "available" if anyone is interested Cheers de Alan G3NYK alan.melia@btinternet.com ----- Original Message ----- From: "g3ldo" To: Sent: 01 February 2004 22:58 Subject: LF: Re: RF level meter > I have a Racal-Dana True RMS RF Level Meter 9303. It reads RF level OK but I > get this flashing message > Er 01, which according to the operator card means "Memory Corrupted, refer > to handbook". > Snag is I don't have a handbook. There seems to be a lot of interesting > computing that can be don with this instrument if only it were working > properly. > Can anyone help? > > Regards, > Peter, G3LDO > > > > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 21668 invoked from network); 1 Feb 2004 00:25:31 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore01.plus.net with SMTP; 1 Feb 2004 00:25:31 -0000 Received: (qmail 80469 invoked from network); 1 Feb 2004 00:25:31 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 1 Feb 2004 00:25:30 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1An5QY-000Kon-8N for dave@picks.force9.co.uk; Sun, 01 Feb 2004 00:25:30 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1An5Pn-0007bd-RO for rs_out@blacksheep.org; Sun, 01 Feb 2004 00:24:43 +0000 Received: from [194.73.73.111] (helo=gadolinium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1An5Pn-0007bU-AS for rsgb_lf_group@blacksheep.org; Sun, 01 Feb 2004 00:24:43 +0000 Received: from [213.122.175.80] (helo=Main) by gadolinium.btinternet.com with smtp (Exim 3.22 #25) id 1An5Ph-000448-00 for rsgb_lf_group@blacksheep.org; Sun, 01 Feb 2004 00:24:37 +0000 X-Bad-Message-ID: no DNS (Main) Message-ID: <000b01c3e859$cdb488c0$6507a8c0@Main> From: "Alan Melia" To: rsgb_lf_group@blacksheep.org References: <6.0.1.1.2.20040129133740.036bcc40@POP3.freeler.nl> <6.0.1.1.2.20040130133028.02f11dc0@POP3.freeler.nl> <001801c3e80d$73b88fc0$e1e9fc3e@l8p8y6> <000801c3e844$96555220$2102000a@ibm> Date: Sun, 1 Feb 2004 00:24:45 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: Schematics powersupplies 50-100Volt wanted Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.1 required=5.0 tests=MAILTO_TO_SPAM_ADDR autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hi Dick, I dont have anything in electronic form but I sure there is a lot. Do a Google search for "electronic fuse". There have certainly been ideas in Elektor over the years that would fill your requirement (maybe with scaling for the current) Maybe a search of the Elektor archive would be fruitful. Cheers de Alan G3NYK alan.melia@btinternet.com ----- Original Message ----- From: "Dick" To: Sent: 31 January 2004 21:52 Subject: LF: Schematics powersupplies 50-100Volt wanted Hello all, after 2 days of searching the internet and a lot of magazines here, I still haven't found any (simple) design for a powersupply in the 50-100V range. I want to run something with an fixed voltage between 50 to 100 Volt, depending on what transformer configuration I'm using. However, I want to have some sort of automatic protection circuit against to high currents that switch of the supply when current gets to high. Yeah, I know, a normal fuse will work, but I do not want to spend a bag off fuses while experimenting. It will be a unit that requires an input of 50-100V AC, giving a fixed DC value out. (that gives me the possibility to use various transformers) So, any hints suggestions or maybe website's will be welcome. Dick, pa4vhf From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 12285 invoked from network); 20 Feb 2004 23:30:14 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore03.plus.net with SMTP; 20 Feb 2004 23:30:14 -0000 Received: (qmail 18351 invoked from network); 20 Feb 2004 23:30:14 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 X-Priority: 3 X-MSMail-Priority: Normal Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 20 Feb 2004 23:30:13 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AuK60-0004eb-TG for dave@picks.force9.co.uk; Fri, 20 Feb 2004 23:30:12 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AuK5M-0001Au-RQ for rs_out@blacksheep.org; Fri, 20 Feb 2004 23:29:32 +0000 Received: from [165.212.11.110] (helo=cmsrelay01.mx.net) by post.thorcom.com with smtp (Exim 4.14) id 1AuK5F-0001A0-AG for rsgb_lf_group@blacksheep.org; Fri, 20 Feb 2004 23:29:25 +0000 Received: from uadvg130.cms.usa.net (165.212.11.130) by cmsoutbound.mx.net with SMTP; 20 Feb 2004 23:28:53 -0000 Received: from usa.net [151.41.157.95] by uadvg130.cms.usa.net (ASMTP/dibene@usa.net) via mtad (C8.MAIN.3.13N) with ESMTP id 212iBTXCz0050M30; Fri, 20 Feb 2004 23:28:51 GMT X-USANET-Auth: 151.41.157.95 AUTH dibene@usa.net usa.net Message-ID: <4036984A.8060808@usa.net> Date: Fri, 20 Feb 2004 23:29:14 +0000 From: "Alberto di Bene" User-Agent: Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax) X-Accept-Language: en-us, en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: In-reply-to: Subject: LF: RF Current meter Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Level: ** X-Spam-Status: No, hits=2.8 required=5.0 tests=FAKE_HELO_USA_NET autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Wouldn't that mean that you measured the current in a point where the impedance was about 2250 ohm ? (Supposing the 100W were RF power, if the PA efficiency is less than 100% that impedance is lower). 5 W into 50 ohm -> 0.316 A -> full scale 0.316/0.75 = 0.422 A 50% of that current = 0.211 A R = W/I^2 = 100/0.211^2 = 2250 ohm 73 Alberto I2PHD ------------------------------- G4WGT - Gary wrote: >An interesting occurrence when testing the simple RF clip on current meter >on the bench, I used my Marathon 5w Tx to provide RF to test the meter, >separated a small section of the coax inner & shield, fed into 50R dummy >load & got 75% fsd, so I shunted the meter until it just moved off the >bottom of the scale, went to the base of the LF vertical whilst transmitting >with about 100w DC i/p but there was no reading on the meter, I then removed >the shunt & did the same test & got about a 50% fsd reading, I can't work >that one out. > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 44555 invoked from network); 20 Feb 2004 23:12:14 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore02.plus.net with SMTP; 20 Feb 2004 23:12:14 -0000 Received: (qmail 88975 invoked from network); 20 Feb 2004 23:12:14 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 X-Priority: 3 X-MSMail-Priority: Normal Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 20 Feb 2004 23:12:07 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AuJoV-000LdF-Bn for dave@picks.force9.co.uk; Fri, 20 Feb 2004 23:12:07 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AuJnr-0000Iw-1O for rs_out@blacksheep.org; Fri, 20 Feb 2004 23:11:27 +0000 Received: from [165.212.11.112] (helo=cmsrelay03.mx.net) by post.thorcom.com with smtp (Exim 4.14) id 1AuJnn-00005e-CZ for rsgb_lf_group@blacksheep.org; Fri, 20 Feb 2004 23:11:23 +0000 Received: from uadvg129.cms.usa.net (165.212.11.129) by cmsoutbound.mx.net with SMTP; 20 Feb 2004 23:10:50 -0000 Received: from usa.net [151.41.157.95] by uadvg129.cms.usa.net (ASMTP/dibene@usa.net) via mtad (C8.MAIN.3.13N) with ESMTP id 509iBTXkv0313M29; Fri, 20 Feb 2004 23:10:47 GMT X-USANET-Auth: 151.41.157.95 AUTH dibene@usa.net usa.net Message-ID: <4036940D.90204@usa.net> Date: Fri, 20 Feb 2004 23:11:09 +0000 From: "Alberto di Bene" User-Agent: Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax) X-Accept-Language: en-us, en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <000e01c3f7f5$683bbee0$6507a8c0@Main> In-reply-to: <000e01c3f7f5$683bbee0$6507a8c0@Main> Subject: Re: LF: Brian......more at the usual page Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Level: ** X-Spam-Status: No, hits=2.8 required=5.0 tests=FAKE_HELO_USA_NET autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 I am experiencing also dropped messages somewhere on Internet. Alan, did you receive my reply to your message ? I think that it could be useful to set the field that requests a receipt of the correct delivery of the message, at least until the situation is normal again. 73 Alberto I2PHD ------------------------------ Alan Melia wrote: >Hi all, sorry again,....an Internet (Lack of) Service Provider >problem....its no wonder his name starts with a "V"....no not the UK one !! > >Cheers Alan G3NYK > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 12949 invoked from network); 18 Feb 2004 22:42:17 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore02.plus.net with SMTP; 18 Feb 2004 22:42:17 -0000 Received: (qmail 38655 invoked from network); 18 Feb 2004 22:42:17 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 X-Priority: 3 X-MSMail-Priority: Normal Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 18 Feb 2004 22:42:16 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AtaOW-0009iN-5n for dave@picks.force9.co.uk; Wed, 18 Feb 2004 22:42:16 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AtaNj-0003BA-Gc for rs_out@blacksheep.org; Wed, 18 Feb 2004 22:41:27 +0000 Received: from [165.212.11.111] (helo=cmsrelay02.mx.net) by post.thorcom.com with smtp (Exim 4.14) id 1AtaNe-0003Ae-0g for rsgb_lf_group@blacksheep.org; Wed, 18 Feb 2004 22:41:22 +0000 Received: from uadvg129.cms.usa.net (165.212.11.129) by cmsoutbound.mx.net with SMTP; 18 Feb 2004 22:40:50 -0000 Received: from usa.net [151.41.143.114] by uadvg129.cms.usa.net (ASMTP/dibene@usa.net) via mtad (C8.MAIN.3.13N) with ESMTP id 433iBRwOv0333M29; Wed, 18 Feb 2004 22:40:47 GMT X-USANET-Auth: 151.41.143.114 AUTH dibene@usa.net usa.net Message-ID: <4033EA09.1020305@usa.net> Date: Wed, 18 Feb 2004 23:41:13 +0100 From: "Alberto di Bene" User-Agent: Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax) X-Accept-Language: en-us, en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <7D653C9C42F5D411A27C00508BF8803D01A9F415@mail.dstl.gov.uk> <4031FB0A.8040706@usa.net> <1AtSHt-0jd19s0@fwd01.sul.t-online.com> <002001c3f63b$1307fda0$bb2765d5@oemcomputer> <4033DA60.8070906@usa.net> <1077142093.4033e24d792c1@webmail2.kuleuven.be> In-reply-to: <1077142093.4033e24d792c1@webmail2.kuleuven.be> Subject: LF: Re: Timing GPS Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Level: ** X-Spam-Status: No, hits=2.8 required=5.0 tests=FAKE_HELO_USA_NET autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Rik Strobbe wrote: >Wouldn't that mean that you had -300C yesterday ? > > No, that would mean that I have now -300C from an experiment that will be started some day in the future... more or less like the Isaac Azimov dissertation about the Endochronic Properties of Resublimated Thiotimoline... >Why don't take one of these super-refrigerator that cool down to a few >Kelvin and put an ordenary -30C refrigerator inside ? > A very good idea, asymptotically valid :-) 73 Alberto I2PHD From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 97747 invoked from network); 18 Feb 2004 21:35:40 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore03.plus.net with SMTP; 18 Feb 2004 21:35:40 -0000 Received: (qmail 67267 invoked from network); 18 Feb 2004 21:35:40 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 X-Priority: 3 X-MSMail-Priority: Normal Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 18 Feb 2004 21:35:38 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AtZM1-000HKK-Um for dave@picks.force9.co.uk; Wed, 18 Feb 2004 21:35:38 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AtZL2-0001Ew-N4 for rs_out@blacksheep.org; Wed, 18 Feb 2004 21:34:36 +0000 Received: from [165.212.11.112] (helo=cmsrelay03.mx.net) by post.thorcom.com with smtp (Exim 4.14) id 1AtZKy-0001Ej-RZ for rsgb_lf_group@blacksheep.org; Wed, 18 Feb 2004 21:34:33 +0000 Received: from uadvg131.cms.usa.net (165.212.11.131) by cmsoutbound.mx.net with SMTP; 18 Feb 2004 21:34:00 -0000 Received: from usa.net [151.41.143.114] by uadvg131.cms.usa.net (ASMTP/dibene@usa.net) via mtad (C8.MAIN.3.13N) with ESMTP id 371iBRVh60024M31; Wed, 18 Feb 2004 21:33:57 GMT X-USANET-Auth: 151.41.143.114 AUTH dibene@usa.net usa.net Message-ID: <4033DA60.8070906@usa.net> Date: Wed, 18 Feb 2004 22:34:24 +0100 From: "Alberto di Bene" User-Agent: Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax) X-Accept-Language: en-us, en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <7D653C9C42F5D411A27C00508BF8803D01A9F415@mail.dstl.gov.uk> <4031FB0A.8040706@usa.net> <1AtSHt-0jd19s0@fwd01.sul.t-online.com> <002001c3f63b$1307fda0$bb2765d5@oemcomputer> In-reply-to: <002001c3f63b$1307fda0$bb2765d5@oemcomputer> Subject: LF: Re: Timing GPS Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Level: *** X-Spam-Status: No, hits=3.6 required=5.0 tests=FAKE_HELO_USA_NET,HTML_50_60,HTML_MESSAGE,HTML_TITLE_EMPTY,MIME_HTML_ONLY autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Johan Bodin wrote:
Operation Temperature range: -300C~+700C 
    

-300C !? Quite impressive.... =o)

Not to mention the +700C ..... they must have used some special solder
for that temperature  :-)

The -300C is easy... given that the molecular Brownian motion slows
down reaching 0 Kelvin, stopping just at that temperature, to go below you
just need to restart the motion of the molecules backward in time...

73  Alberto  I2PHD

From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 34286 invoked from network); 17 Feb 2004 11:31:16 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore04.plus.net with SMTP; 17 Feb 2004 11:31:16 -0000 Received: (qmail 60060 invoked from network); 17 Feb 2004 11:31:16 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 X-Priority: 3 X-MSMail-Priority: Normal Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 17 Feb 2004 11:31:14 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1At3Ra-000FOV-Is for dave@picks.force9.co.uk; Tue, 17 Feb 2004 11:31:14 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1At3Ps-0000ds-Oh for rs_out@blacksheep.org; Tue, 17 Feb 2004 11:29:28 +0000 Received: from [165.212.11.110] (helo=cmsrelay01.mx.net) by post.thorcom.com with smtp (Exim 4.14) id 1At3Po-0000cR-Tc for rsgb_lf_group@blacksheep.org; Tue, 17 Feb 2004 11:29:25 +0000 Received: from cmsapps02.cms.usa.net (165.212.11.138) by cmsoutbound.mx.net with SMTP; 17 Feb 2004 11:28:52 -0000 Received: from usa.net [151.41.143.172] by cmsapps02.cms.usa.net (ASMTP/dibene@usa.net) via mtad (C8.MAIN.3.13N) with ESMTP id 516iBqLCY0367M38; Tue, 17 Feb 2004 11:28:50 GMT X-USANET-Auth: 151.41.143.172 AUTH dibene@usa.net usa.net Message-ID: <4031FB0A.8040706@usa.net> Date: Tue, 17 Feb 2004 12:29:14 +0100 From: "Alberto di Bene" User-Agent: Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax) X-Accept-Language: en-us, en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <7D653C9C42F5D411A27C00508BF8803D01A9F415@mail.dstl.gov.uk> In-reply-to: <7D653C9C42F5D411A27C00508BF8803D01A9F415@mail.dstl.gov.uk> Subject: LF: Re:: Timing GPS Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Level: ** X-Spam-Status: No, hits=2.8 required=5.0 tests=FAKE_HELO_USA_NET autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Hello group, Andy G4JNT has written some notes about his GPSDO (GPS DIsciplined Oscillator) project. I have been quite happy to host them on my Web site. You can find them here : http://gpsdo.i2phd.com 73 Alberto I2PHD From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 17282 invoked from network); 15 Feb 2004 11:55:05 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore01.plus.net with SMTP; 15 Feb 2004 11:55:05 -0000 Received: (qmail 74854 invoked from network); 15 Feb 2004 11:57:04 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 X-Priority: 3 X-MSMail-Priority: Normal Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 15 Feb 2004 11:57:02 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AsKtS-000JM1-OC for dave@picks.force9.co.uk; Sun, 15 Feb 2004 11:57:02 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AsKsi-0000aw-NN for rs_out@blacksheep.org; Sun, 15 Feb 2004 11:56:16 +0000 Received: from [165.212.11.112] (helo=cmsrelay03.mx.net) by post.thorcom.com with smtp (Exim 4.14) id 1AsKsd-0000an-0Q for rsgb_lf_group@blacksheep.org; Sun, 15 Feb 2004 11:56:11 +0000 Received: from uadvg130.cms.usa.net (165.212.11.130) by cmsoutbound.mx.net with SMTP; 15 Feb 2004 11:55:39 -0000 Received: from usa.net [151.41.143.235] by uadvg130.cms.usa.net (ASMTP/dibene@usa.net) via mtad (C8.MAIN.3.13N) with ESMTP id 046iBoL4l0493M30; Sun, 15 Feb 2004 11:55:37 GMT X-USANET-Auth: 151.41.143.235 AUTH dibene@usa.net usa.net Message-ID: <402F5E4E.3000308@usa.net> Date: Sun, 15 Feb 2004 12:55:58 +0100 From: "Alberto di Bene" User-Agent: Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax) X-Accept-Language: en-us, en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <98.36e2ca3.2d60958c@aol.com> In-reply-to: <98.36e2ca3.2d60958c@aol.com> Subject: LF: Re: Timing GPS Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Level: ** X-Spam-Status: No, hits=2.8 required=5.0 tests=FAKE_HELO_USA_NET autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 DL4YHF@aol.com wrote: > Cannot confirm this - on my PC (P4) its exactly two times this frequency, > so do not rely on a 'constant' value. Hi Wolf, thanks for the information. It looks like on the Pentium iV they have changed something. But I am on the safe side, I issue the QueryPerformanceFrequency when my program starts, and use the returned value. One of the golden rules in Computer Science is that constants can be everything, bar constants :-) 73 Alberto I2PHD From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 64854 invoked from network); 14 Feb 2004 15:21:14 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore02.plus.net with SMTP; 14 Feb 2004 15:21:14 -0000 Received: (qmail 51331 invoked from network); 14 Feb 2004 15:21:14 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 X-Priority: 3 X-MSMail-Priority: Normal Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 14 Feb 2004 15:21:12 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1As1bU-000D83-Eq for dave@picks.force9.co.uk; Sat, 14 Feb 2004 15:21:12 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1As1a3-0000nt-EO for rs_out@blacksheep.org; Sat, 14 Feb 2004 15:19:43 +0000 Received: from [165.212.11.111] (helo=cmsrelay02.mx.net) by post.thorcom.com with smtp (Exim 4.14) id 1As1Zz-0000nk-5a for rsgb_lf_group@blacksheep.org; Sat, 14 Feb 2004 15:19:39 +0000 Received: from uadvg128.cms.usa.net (165.212.11.128) by cmsoutbound.mx.net with SMTP; 14 Feb 2004 15:19:07 -0000 Received: from usa.net [151.41.154.54] by uadvg128.cms.usa.net (ASMTP/dibene@usa.net) via mtad (C8.MAIN.3.13N) with ESMTP id 488iBNPTD0455M28; Sat, 14 Feb 2004 15:19:03 GMT X-USANET-Auth: 151.41.154.54 AUTH dibene@usa.net usa.net Message-ID: <402E3C77.8000207@usa.net> Date: Sat, 14 Feb 2004 16:19:19 +0100 From: "Alberto di Bene" User-Agent: Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax) X-Accept-Language: en-us, en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <143.21a3b7d4.2d5ea1b2@aol.com> In-reply-to: <143.21a3b7d4.2d5ea1b2@aol.com> Subject: LF: Re: Timing GPS Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Level: ** X-Spam-Status: No, hits=2.8 required=5.0 tests=FAKE_HELO_USA_NET autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 WarmSpgs@aol.com wrote: >[...] > > >With >programs no longer having direct access to the hardware, the time is whatever Windows >says it is. I expect there are still ways to trigger reading of the system >clock, but there will always be slippage of an unknown number of "ticks", >depending on what processes are running and what priority they have. >[...] > > Maybe there is a way out. In Windows, both 98 and XP, there is API called QueryPerformanceCounter. From the help: The QueryPerformanceCounter function retrieves the current value of the high-resolution performance counter, if one exists. The last sentence "if one exists", is justified by the fact that this *hardware* counter has been implemented in CPUs not older that the Pentium II, or the AMD K7, if memory serves. This counter is a 64-bit register in the CPU core, incremented by a 1,193,180 Hz clock, about 0.838 us resolution. Being hardware, it is not affected by the scheduling priorities of Windows, so it is quite accurate. It's main drawback is that you cannot use it to generate interrupts, you have to poll it to read its value. The main FFT buffers shifting and sheduling timing in Spectran is done using this counter, so I know by experience that it works. Windows docs suggest to use the API QueryPerformanceFrequency to know the actual clock frequency used to increment that counter, but I have found that, at least on all the PCs I have tested, it always returns the value of 1,193,180 Hz. 73 Alberto I2PHD From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 76843 invoked from network); 22 Feb 2004 00:35:19 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore01.plus.net with SMTP; 22 Feb 2004 00:35:19 -0000 Received: (qmail 75230 invoked from network); 22 Feb 2004 00:38:25 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 22 Feb 2004 00:38:24 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AuhdW-000JL5-Vz for dave@picks.force9.co.uk; Sun, 22 Feb 2004 00:38:23 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AuhcH-0000bc-CE for rs_out@blacksheep.org; Sun, 22 Feb 2004 00:37:05 +0000 Received: from [194.25.134.82] (helo=mailout05.sul.t-online.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AuhcG-0000bS-EF for rsgb_lf_group@blacksheep.org; Sun, 22 Feb 2004 00:37:04 +0000 X-Fake-Domain: fwd03.aul.t-online.de Received: from fwd03.aul.t-online.de by mailout05.sul.t-online.com with smtp id 1AuhcF-0005xy-00; Sun, 22 Feb 2004 01:37:03 +0100 Received: from 192.168.6.2 (GE1gfYZ1ge7LX+k4Tma+jOAZyffIfvgf9FlZMu2urpEuVU4yhMH7Ei@[80.129.119.114]) by fwd03.sul.t-online.com with smtp id 1Auhc2-2BRxdA0; Sun, 22 Feb 2004 01:36:50 +0100 MIME-Version: 1.0 From: "bernd grupe" To: rsgb_lf_group@blacksheep.org X-Mailer: T-Online eMail 5.00.0026 Date: 22 Feb 2004 01:12 GMT Message-ID: <1Auhc2-2BRxdA0@fwd03.sul.t-online.com> X-Seen: false X-ID: GE1gfYZ1ge7LX+k4Tma+jOAZyffIfvgf9FlZMu2urpEuVU4yhMH7Ei Subject: LF: VO1NA beaconing Content-Type: multipart/mixed; boundary="------------050805020400080207040607" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 This is a multi-part message in MIME format. --------------050805020400080207040607 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 8bit Hi Joe, captured your sigs. 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V5A5v8/XMuC+djlDJrTm7IHY/D+Z4TluPYnQWSeNOP41nR+e/Dfk8zs4lgxAzv2HvA/lmJ4r nuK5NgudYzj+aYTmmP3OJ5jh2WU1dkeK5ZiuR10mnyHGcmx64jPRL7H59RMmRZsKUy7GlRpT jD7a2lqSc6zqiG/5Ww7ibzY55yT5afiC/wCJfJvnM83/AJG+T8b8gFZj3BMjBOY/L3y/xt5I vLHyr5jOLTP48k8oeY3j+i8sGFZ9yXH5K40zeHxnSTOJZ0C/gWDGA8jRbbni/wC8c8Z1nX// 2Q== --------------050805020400080207040607-- From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 34455 invoked from network); 20 Feb 2004 19:27:05 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore04.plus.net with SMTP; 20 Feb 2004 19:27:05 -0000 Received: (qmail 77567 invoked from network); 20 Feb 2004 19:27:04 -0000 Content-Transfer-Encoding: 8bit X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 20 Feb 2004 19:26:56 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AuGIa-000JnF-FJ for dave@picks.force9.co.uk; Fri, 20 Feb 2004 19:26:56 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AuGHs-0001Wg-Tr for rs_out@blacksheep.org; Fri, 20 Feb 2004 19:26:12 +0000 Received: from [195.22.0.25] (helo=magneto.esoterica.pt) by post.thorcom.com with esmtp (Exim 4.14) id 1AuGHs-0001WX-9d for rsgb_lf_group@blacksheep.org; Fri, 20 Feb 2004 19:26:12 +0000 X-Fake-Domain: Slave_13.esoterica.pt Received: from Slave_13.esoterica.pt (adsl-norte02-1-206.vianw.pt [80.172.144.206]) by magneto.esoterica.pt (8.12.11/8.12.11) with ESMTP id i1KJQBl6018848 for ; Fri, 20 Feb 2004 19:26:11 GMT Message-ID: <5.2.0.9.2.20040220191209.02459608@pop.vianw.pt> X-Sender: nx4ywv@pop.vianw.pt X-Mailer: QUALCOMM Windows Eudora Version 5.2.0.9 Date: Fri, 20 Feb 2004 19:19:40 +0000 To: rsgb_lf_group@blacksheep.org From: "Brian Rogerson" In-reply-to: <002901c3f7e4$ef6b59e0$a71279d1@jsm> References: <000701c3f7a9$3efe6920$6507a8c0@Main> MIME-Version: 1.0 Subject: Re: LF: Antenna Insulators Content-Type: text/plain; charset=us-ascii; format=flowed X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Hi Steve I have used 1000mm (~3ft) of about 22mm diameter grey pvc waterpipe at each end of the marconi, together with two egg type insultors at each end of the pipe. ie -----------O--===============================--O------------- Probably not recommended because of the possible accumulation of moisture in the pipe, but has worked well for me for several years. 73, Brian CT1DRP At 19:08 20/02/2004, you wrote: >Has anyone had success using white PVC pipe (say ~ 1.5" dia) for insulators? >I am wondering if a 12 -18" piece at the voltage ends of my flatop would be >enough to prevent any flash-over? > >Steve / VE7SL From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 76497 invoked from network); 9 Feb 2004 13:15:50 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore01.plus.net with SMTP; 9 Feb 2004 13:15:50 -0000 Received: (qmail 85658 invoked from network); 9 Feb 2004 13:16:47 -0000 Content-Transfer-Encoding: 8bit X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 9 Feb 2004 13:16:45 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AqBHJ-000M7n-PT for dave@picks.force9.co.uk; Mon, 09 Feb 2004 13:16:45 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AqBGH-0008Ai-Bp for rs_out@blacksheep.org; Mon, 09 Feb 2004 13:15:41 +0000 Received: from [195.22.31.43] (helo=hulk.vianw.pt) by post.thorcom.com with esmtp (Exim 4.14) id 1AqBGE-0008AZ-H8 for rsgb_lf_group@blacksheep.org; Mon, 09 Feb 2004 13:15:38 +0000 X-Fake-Domain: Slave_13.esoterica.pt Received: from Slave_13.esoterica.pt (adsl-norte02-1-135.vianw.pt [80.172.144.135]) by hulk.vianw.pt (8.12.11/8.12.11) with ESMTP id i19DFbCo014087 for ; Mon, 9 Feb 2004 13:15:37 GMT Message-ID: <5.2.0.9.2.20040209090917.00bb2750@pop.vianw.pt> X-Sender: nx4ywv@pop.vianw.pt X-Mailer: QUALCOMM Windows Eudora Version 5.2.0.9 Date: Mon, 09 Feb 2004 09:11:22 +0000 To: rsgb_lf_group@blacksheep.org From: "Brian Rogerson" In-reply-to: <000401c3eee8$f2a181c0$0cc828c3@erica> References: <6.0.1.1.2.20040201150716.03705e90@POP3.freeler.nl> <002701c3eea2$487a67c0$eee086d4@erica> <4026D0D6.60C47686@att.net> <002f01c3eea6$c54ac7a0$eee086d4@erica> MIME-Version: 1.0 Subject: Re: LF: Re: TA. Content-Type: text/plain; charset=us-ascii; format=flowed X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.7 required=5.0 tests=DATE_IN_PAST_03_06 autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Have just checked my record and Joe was perhaps an optimistic M between 06:00 and 07:30utc. 73, Brian, CT1DRP At 08:43 09/02/2004, you wrote: > > Peter, > > Got you on both frequencies. Good copy. > > I replied on 137.777 but guess the antenna is still too low. > > Joe > >In spite of your reduced erp I got a complete call on the Argo grab between >0330 and 0400. >Woke up early and put the transmitter on for half an hour at 0530. >Saw it was being received by Dex so transmitted an extra L at QRSS60 for >good measure but I think the signal was fading by then. >Saw OH0ULO on QRSS3 during yesterday evening. Tried to respond but link >between computer and transmitter had failed. Repared with a transistor from >scrap electronic shower control unit. By the time I was back on the air the >OH0 had faded. > >Regards, >Peter, G3LDO From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 31513 invoked from network); 21 Feb 2004 13:47:02 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore03.plus.net with SMTP; 21 Feb 2004 13:47:02 -0000 Received: (qmail 83208 invoked from network); 21 Feb 2004 13:47:02 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 21 Feb 2004 13:47:01 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AuXTB-000LVH-FA for dave@picks.force9.co.uk; Sat, 21 Feb 2004 13:47:01 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AuXSZ-00048L-B6 for rs_out@blacksheep.org; Sat, 21 Feb 2004 13:46:23 +0000 Received: from [212.135.6.14] (helo=smarthost4.mail.uk.easynet.net) by post.thorcom.com with esmtp (Exim 4.14) id 1AuXSY-00048C-Ux for rsgb_lf_group@blacksheep.org; Sat, 21 Feb 2004 13:46:23 +0000 Received: from tnt-5-245.easynet.co.uk ([195.40.200.245] helo=captbrian) by smarthost4.mail.uk.easynet.net with smtp (Exim 4.10) id 1AuXSX-000FaZ-00 for rsgb_lf_group@blacksheep.org; Sat, 21 Feb 2004 13:46:22 +0000 X-Bad-Message-ID: no DNS (captbrian) Message-ID: <004801c3f881$0b99bc00$f5c828c3@captbrian> From: "captbrian" To: rsgb_lf_group@blacksheep.org References: <000701c3f7a9$3efe6920$6507a8c0@Main> <002901c3f7e4$ef6b59e0$a71279d1@jsm> <002d01c3f7ee$7dba62f0$1f00a8c0@dellboy> Date: Sat, 21 Feb 2004 13:40:10 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: Re: LF: Antenna Insulators Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Pipe-cleaners surely? Bryan ----- Original Message ----- From: "Tom Boucher" To: Sent: 21 February 2004 09:50 Subject: Re: LF: Antenna Insulators > Send him an old toothbrush! > > In message <002d01c3f7ee$7dba62f0$1f00a8c0@dellboy>, Dave Pick > writes > >Dear all. > > > >I don't like pipe because water collects inside and it's amazing how far an > >arc can track down a damp path! > >If you do use it, seal the ends with silicone sealant (applied in a dry > >place), that seems to work. > > > >Dave G3YXM. > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 67785 invoked from network); 21 Feb 2004 08:43:55 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore04.plus.net with SMTP; 21 Feb 2004 08:43:55 -0000 Received: (qmail 51450 invoked from network); 21 Feb 2004 08:43:55 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 21 Feb 2004 08:43:54 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AuSjq-000DGf-Li for dave@picks.force9.co.uk; Sat, 21 Feb 2004 08:43:54 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AuSil-0000vg-QQ for rs_out@blacksheep.org; Sat, 21 Feb 2004 08:42:47 +0000 Received: from [212.135.6.11] (helo=smarthost1.mail.uk.easynet.net) by post.thorcom.com with esmtp (Exim 4.14) id 1AuSil-0000vX-Bo for rsgb_lf_group@blacksheep.org; Sat, 21 Feb 2004 08:42:47 +0000 Received: from tnt-2-54.easynet.co.uk ([195.40.196.54] helo=captbrian) by smarthost1.mail.uk.easynet.net with smtp (Exim 4.10) id 1AuSih-000Bn3-00 for rsgb_lf_group@blacksheep.org; Sat, 21 Feb 2004 08:42:44 +0000 X-Bad-Message-ID: no DNS (captbrian) Message-ID: <002901c3f856$a0d9a580$36c428c3@captbrian> From: "captbrian" To: rsgb_lf_group@blacksheep.org References: <131.2a3ec779.2d67f908@aol.com> <002301c3f816$cc105fe0$6507a8c0@Main> Date: Sat, 21 Feb 2004 08:42:22 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: Re: G0MIN or good things come to those who wait. Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Is God a secret ham ? Bryan ----- Original Message ----- From: "Alan Melia" To: Sent: 21 February 2004 00:51 Subject: LF: Re: G0MIN or good things come to those who wait. > Where did you hide your big hammer Dave ?? > Alan G3NYK > ----- Original Message ----- > From: > To: > Sent: 20 February 2004 23:58 > Subject: LF: G0MIN or good things come to those who wait. > > > > > > > > Some time ago my local club station at Whitton operated 73 and 136kHz on a > > Friday night. > > This was a great learning experience for the club members as usually > > something dramatic would happen. Unfortunately we had to close the LF > operation as > > some fast growing conifers became entangled with the antenna. As they > belonged to > > the church next to the community centre there wasn't very much we could > > do.........G0MIN QRT! > > > > 6 months ago some nasty looking cracks appeared in one of the community > > centre's walls and after an inspection the local authority decided the > trees were > > responsible. > > > > Earlier this week 6 trees were felled and we now have an unobstructed wire > > 250 feet long with the far end attached to the church 90ft AGL. > > > > So from next week we'll be back on a Friday evening with something between > > 500mW and 1W ERP. Yippee It's been too long. > > > > 73 > > > > David G0MRF > > > > > > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 38343 invoked from network); 20 Feb 2004 18:06:57 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore02.plus.net with SMTP; 20 Feb 2004 18:06:57 -0000 Received: (qmail 17650 invoked from network); 20 Feb 2004 18:06:56 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 20 Feb 2004 18:06:55 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AuF39-0004Ml-Ma for dave@picks.force9.co.uk; Fri, 20 Feb 2004 18:06:55 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AuF25-0007Hc-GG for rs_out@blacksheep.org; Fri, 20 Feb 2004 18:05:49 +0000 Received: from [212.135.6.14] (helo=smarthost4.mail.uk.easynet.net) by post.thorcom.com with esmtp (Exim 4.14) id 1AuF25-0007HT-26 for rsgb_lf_group@blacksheep.org; Fri, 20 Feb 2004 18:05:49 +0000 Received: from tnt-5-161.easynet.co.uk ([195.40.200.161] helo=captbrian) by smarthost4.mail.uk.easynet.net with smtp (Exim 4.10) id 1AuF1z-0000Hv-00 for rsgb_lf_group@blacksheep.org; Fri, 20 Feb 2004 18:05:43 +0000 X-Bad-Message-ID: no DNS (captbrian) Message-ID: <00a601c3f7dc$1d478cc0$a1c828c3@captbrian> From: "captbrian" To: rsgb_lf_group@blacksheep.org References: <1ab.2067cb62.2d63d54c@aol.com> Date: Fri, 20 Feb 2004 16:59:25 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: The Lowdown Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 What is the LOWDOWN? Bryan ----- Original Message ----- From: To: Sent: 17 February 2004 20:36 Subject: LF: Re: Timing GPS > Andy, > butors on this side of the pond. > > Could we print your notes and illustrations in The LOWDOWN for interested > parties who are not, shall we say, online-enabled? > > Thanks. > > John Davis > > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 90658 invoked from network); 19 Feb 2004 08:32:57 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore03.plus.net with SMTP; 19 Feb 2004 08:32:57 -0000 Received: (qmail 84853 invoked from network); 19 Feb 2004 08:32:56 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 19 Feb 2004 08:32:55 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1Atjc7-000Lqd-HC for dave@picks.force9.co.uk; Thu, 19 Feb 2004 08:32:55 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AtjbC-0003HU-DC for rs_out@blacksheep.org; Thu, 19 Feb 2004 08:31:58 +0000 Received: from [212.135.6.14] (helo=smarthost4.mail.uk.easynet.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Atjb9-0003HL-R6 for rsgb_lf_group@blacksheep.org; Thu, 19 Feb 2004 08:31:55 +0000 Received: from [212.134.22.250] (helo=captbrian) by smarthost4.mail.uk.easynet.net with smtp (Exim 4.10) id 1Atjb5-000A9Z-00 for rsgb_lf_group@blacksheep.org; Thu, 19 Feb 2004 08:31:52 +0000 X-Bad-Message-ID: no DNS (captbrian) Message-ID: <002101c3f6c2$c83dfda0$fa1686d4@captbrian> From: "captbrian" To: rsgb_lf_group@blacksheep.org References: <000901c3f648$d86b6160$6507a8c0@Main> Date: Thu, 19 Feb 2004 08:24:21 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: Testing on 137 ?? Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 I've always said...No good can come of annoying the Martians with all these probes.... ----- Original Message ----- From: "Alan Melia" To: "LF-Group" Sent: 18 February 2004 17:58 Subject: LF: Testing on 137 ?? > Hi all, I had a very strong (almost saturation for my AGC-off system) stable > carrier on 137.00kHz this afternoon which eventually went on 200Hz peak > deviation sawtooth modulation...initially quite fast but later slowing > ....no callsign detected ?? > > Cheers de Alan G3NYK > alan.melia@btinternet.com > > > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 89192 invoked from network); 20 Feb 2004 20:12:42 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore01.plus.net with SMTP; 20 Feb 2004 20:12:42 -0000 Received: (qmail 76131 invoked from network); 20 Feb 2004 20:15:36 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 20 Feb 2004 20:15:35 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AuH3f-000JgX-IK for dave@picks.force9.co.uk; Fri, 20 Feb 2004 20:15:35 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AuH2q-00033U-BJ for rs_out@blacksheep.org; Fri, 20 Feb 2004 20:14:44 +0000 Received: from [194.73.73.93] (helo=rhenium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AuH2p-00033L-Oh for rsgb_lf_group@blacksheep.org; Fri, 20 Feb 2004 20:14:43 +0000 Received: from [81.129.45.61] (helo=dellboy) by rhenium.btinternet.com with smtp (Exim 3.22 #25) id 1AuH2p-0001uc-00 for rsgb_lf_group@blacksheep.org; Fri, 20 Feb 2004 20:14:43 +0000 X-Bad-Message-ID: no DNS (dellboy) Message-ID: <002d01c3f7ee$7dba62f0$1f00a8c0@dellboy> From: "Dave Pick" To: rsgb_lf_group@blacksheep.org References: <000701c3f7a9$3efe6920$6507a8c0@Main> <002901c3f7e4$ef6b59e0$a71279d1@jsm> Date: Fri, 20 Feb 2004 20:16:57 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1158 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: Re: LF: Antenna Insulators Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Dear all. I don't like pipe because water collects inside and it's amazing how far an arc can track down a damp path! If you do use it, seal the ends with silicone sealant (applied in a dry place), that seems to work. Dave G3YXM. > > > Has anyone had success using white PVC pipe (say ~ 1.5" dia) for insulators? > > I am wondering if a 12 -18" piece at the voltage ends of my flatop would be > > enough to prevent any flash-over? > > I am about to find out because I've built just such insulators for my > flattop. Mine are 2cm dia by about 35cm and have 9cm corona rings on > each end. I'll have pictures soon but are just like the ones Ralph W5JGV > built as seen here: > http://www.emachine.com/insulators/ring_finished_insulator.jpg > > That picture is from Ralph's page for these insulators which is here: > http://www.emachine.com/insulators.htm > > The mast material for my flattop was delivered yesterday, so I hope to > have WD2XFX back on the air by the time the weekend is over ... and I'll > see how these insulators perform. > > Good luck, > Eric > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 32007 invoked from network); 16 Feb 2004 16:46:49 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore03.plus.net with SMTP; 16 Feb 2004 16:46:49 -0000 Received: (qmail 60082 invoked from network); 16 Feb 2004 16:46:49 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 16 Feb 2004 16:46:46 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AsltN-000FBE-WF for dave@picks.force9.co.uk; Mon, 16 Feb 2004 16:46:46 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AslsQ-0003qb-0B for rs_out@blacksheep.org; Mon, 16 Feb 2004 16:45:46 +0000 Received: from [194.73.73.93] (helo=rhenium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AslsP-0003qS-98 for rsgb_lf_group@blacksheep.org; Mon, 16 Feb 2004 16:45:45 +0000 Received: from [81.131.201.175] (helo=j1r9b7) by rhenium.btinternet.com with smtp (Exim 3.22 #25) id 1AslsN-0007YR-00 for rsgb_lf_group@blacksheep.org; Mon, 16 Feb 2004 16:45:44 +0000 X-Bad-Message-ID: no DNS (j1r9b7) Message-ID: <001401c3f4ab$37705700$afc98351@j1r9b7> From: "Derek Atter" To: rsgb_lf_group@blacksheep.org References: <12d.357b7d9a.2cf3b16f@aol.com> Date: Sat, 14 Feb 2004 20:26:31 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2919.6600 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: unsubscribe_rsgb_lf_group@blacksheep.org Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 unsubscribe_rsgb_lf_group@blacksheep.org From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 33202 invoked from network); 15 Feb 2004 19:03:04 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore04.plus.net with SMTP; 15 Feb 2004 19:03:04 -0000 Received: (qmail 90415 invoked from network); 15 Feb 2004 19:03:04 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 15 Feb 2004 19:03:02 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AsRXi-000N4M-N4 for dave@picks.force9.co.uk; Sun, 15 Feb 2004 19:03:02 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AsRWL-0002vH-Ni for rs_out@blacksheep.org; Sun, 15 Feb 2004 19:01:37 +0000 Received: from [62.58.50.88] (helo=postbode01.zonnet.nl) by post.thorcom.com with esmtp (Exim 4.14) id 1AsRWK-0002v4-SH for rsgb_lf_group@blacksheep.org; Sun, 15 Feb 2004 19:01:36 +0000 Received: (qmail 21505 invoked by uid 10); 15 Feb 2004 19:01:05 -0000 Received: (vexira-qq 21480-4B3F472C invoked from network) 15 Feb 2004 20:01:04 +0100 X-Fake-Domain: unknown Received: from unknown (HELO ibm) ([62.59.155.83]) (envelope-sender ) by postbode01.zonnet.nl (qmail-ldap-1.03) with SMTP for < >; 15 Feb 2004 19:01:04 -0000 X-Bad-Message-ID: no DNS (ibm) Message-ID: <003601c3f3f4$f6fc3740$2102000a@ibm> From: "Dick" To: rsgb_lf_group@blacksheep.org References: <001b01c3f179$48fa35c0$6507a8c0@Main> Date: Sun, 15 Feb 2004 19:52:05 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2615.200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Antivirus: checked by Vexira MailArmor (version: 2.0.1.16; VAE: 6.23.0.4; VDF: 6.23.0.68; host: postbode01.zonnet.nl) Subject: LF: Thanks for calling PI4ZI on 160m..... Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.9 required=5.0 tests=FROM_ENDS_IN_NUMS autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hello, and thanks to all who called me last night on 160m operating PI4ZI. Had great fun with just 400Watt into an full-size delta loop. Excellent signals. pictures at : http://www.qsl.net/pi4zi/ Look at PACC2002/2003 where you can find some pictures of the big loop and me preparing them (with others) Now first have to repair a blown transistor in a pre-amp that didn't survive the contest, dispite extremly heavy precautions against RF........ After this my work on my 136kHz station will start again. Let's hope I'll be on 136kHz before this summer.......... Dick, pa4vhf From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 96007 invoked from network); 12 Feb 2004 22:07:07 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore03.plus.net with SMTP; 12 Feb 2004 22:07:07 -0000 Received: (qmail 92933 invoked from network); 12 Feb 2004 22:07:07 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 12 Feb 2004 22:07:05 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1ArOzB-000Nt6-L0 for dave@picks.force9.co.uk; Thu, 12 Feb 2004 22:07:05 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ArOyE-0002z3-4z for rs_out@blacksheep.org; Thu, 12 Feb 2004 22:06:06 +0000 Received: from [62.58.50.89] (helo=postbode02.zonnet.nl) by post.thorcom.com with esmtp (Exim 4.14) id 1ArOyD-0002yu-As for rsgb_lf_group@blacksheep.org; Thu, 12 Feb 2004 22:06:05 +0000 Received: (qmail 2256 invoked by uid 10); 12 Feb 2004 22:05:34 -0000 Received: (vexira-qq 02242-F7424105 invoked from network) 12 Feb 2004 23:05:33 +0100 X-Fake-Domain: unknown Received: from unknown (HELO ibm) ([62.59.190.71]) (envelope-sender ) by postbode02.zonnet.nl (qmail-ldap-1.03) with SMTP for < >; 12 Feb 2004 22:05:33 -0000 X-Bad-Message-ID: no DNS (ibm) Message-ID: <008d01c3f1b3$3edfcc00$2102000a@ibm> From: "Dick" To: rsgb_lf_group@blacksheep.org References: <001b01c3f179$48fa35c0$6507a8c0@Main> Date: Thu, 12 Feb 2004 22:54:10 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2615.200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Antivirus: checked by Vexira MailArmor (version: 2.0.1.16; VAE: 6.23.0.4; VDF: 6.23.0.67; host: postbode02.zonnet.nl) Subject: LF: QRV 160m, sri no 137kHz yet....... Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.9 required=5.0 tests=FROM_ENDS_IN_NUMS autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hello all, A bit off topic, but I just want to inform you that I will be the operator of PI4ZI on 160m during this weekends PACC contest. We will try to put up my full-size delta loop for 160m again. Meanwhile I did some slow progress in my 137kHz station. I made a 45V/6A test powersupply as well as an 500 Watt dummyload. Next step will be to get some of the difficult parts, like the TC44.. stuff...... 73! Dick, pa4vhf (East-Netherlands) From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 58304 invoked from network); 29 Feb 2004 12:20:09 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore03.plus.net with SMTP; 29 Feb 2004 12:20:09 -0000 Received: (qmail 93859 invoked from network); 29 Feb 2004 12:20:09 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 29 Feb 2004 12:20:08 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AxPvU-000OIb-43 for dave@picks.force9.co.uk; Sun, 29 Feb 2004 12:20:08 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AxPuY-0002qc-FL for rs_out@blacksheep.org; Sun, 29 Feb 2004 12:19:10 +0000 Received: from [213.218.75.232] (helo=smtp03.freeler.nl) by post.thorcom.com with esmtp (Exim 4.14) id 1AxPuX-0002qT-6c for rsgb_lf_group@blacksheep.org; Sun, 29 Feb 2004 12:19:09 +0000 Received: (qmail 20444 invoked from network); 29 Feb 2004 12:19:08 -0000 X-Fake-Domain: unknown Received: from unknown (HELO w8k3f0.freeler.nl) ([62.21.145.200]) (envelope-sender ) by smtp03.freeler.nl (qmail-ldap-1.03) with SMTP for ; 29 Feb 2004 12:19:03 -0000 Message-ID: <6.0.1.1.2.20040229131137.027eb800@POP3.freeler.nl> X-Sender: FRE0000086604@POP3.freeler.nl (Unverified) X-Mailer: QUALCOMM Windows Eudora Version 6.0.1.1 Date: Sun, 29 Feb 2004 13:18:42 +0100 To: "LF-Group" From: "Dick Rollema" MIME-Version: 1.0 Subject: LF: VO1NA beaconing Content-Type: multipart/mixed; boundary="------------020000090602070601040709" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=HTML_MESSAGE autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 This is a multi-part message in MIME format. --------------020000090602070601040709 Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: 8bit To All from PA0SE

For the second night in succession I got readable traces of Joe's signal on two of the half-hour captures.  The 06.34.46 UTC one is partly corrupted by the sidebands of DCF39 data transmissions.
See attachments.

73, Dick, PA0SE
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6riO7NiO7viO8BiP8h04j/RYj/Z4j/iYj/q4j/zYj/74jwAZkAI5kARZkAsGeZAImZAK2Y4B AQA7 --------------020000090602070601040709-- From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 37895 invoked from network); 28 Feb 2004 18:34:36 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore02.plus.net with SMTP; 28 Feb 2004 18:34:36 -0000 Received: (qmail 97023 invoked from network); 28 Feb 2004 18:34:36 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 28 Feb 2004 18:34:34 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1Ax9II-000Oum-J1 for dave@picks.force9.co.uk; Sat, 28 Feb 2004 18:34:34 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Ax9Gt-0000L9-At for rs_out@blacksheep.org; Sat, 28 Feb 2004 18:33:07 +0000 Received: from [213.218.75.235] (helo=smtp06.freeler.nl) by post.thorcom.com with esmtp (Exim 4.14) id 1Ax9Gs-0000L0-31 for rsgb_lf_group@blacksheep.org; Sat, 28 Feb 2004 18:33:06 +0000 Received: (qmail 3916 invoked from network); 28 Feb 2004 18:33:05 -0000 X-Fake-Domain: unknown Received: from unknown (HELO w8k3f0.freeler.nl) ([62.21.145.170]) (envelope-sender ) by smtp06.freeler.nl (qmail-ldap-1.03) with SMTP for ; 28 Feb 2004 18:33:00 -0000 Message-ID: <6.0.1.1.2.20040228192902.028fa070@POP3.freeler.nl> X-Sender: FRE0000086604@POP3.freeler.nl (Unverified) X-Mailer: QUALCOMM Windows Eudora Version 6.0.1.1 Date: Sat, 28 Feb 2004 19:33:25 +0100 To: "LF-Group" From: "Dick Rollema" MIME-Version: 1.0 Subject: LF: VO1NA beaconing Content-Type: multipart/mixed; boundary="------------070600040000000909040709" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.8 required=5.0 tests=HTML_IMAGE_ONLY_08,HTML_MESSAGE autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 This is a multi-part message in MIME format. --------------070600040000000909040709 Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: 8bit To All from PA0SE,

As already during several nights before I had the receiver and computer running last night, monitoring VO1NA's signal.
Screenshots were made every 30 minutes.
Only the one of 01.06 UTC shows a trace of Joe's signal.

73, Dick, PA0SE
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--------------070600040000000909040709-- From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 53601 invoked from network); 23 Feb 2004 13:02:55 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore01.plus.net with SMTP; 23 Feb 2004 13:02:55 -0000 Received: (qmail 48947 invoked from network); 23 Feb 2004 13:06:17 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 23 Feb 2004 13:06:16 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AvFmp-000CaO-RP for dave@picks.force9.co.uk; Mon, 23 Feb 2004 13:06:15 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AvFlP-0001fM-8E for rs_out@blacksheep.org; Mon, 23 Feb 2004 13:04:47 +0000 Received: from [213.218.75.234] (helo=smtp05.freeler.nl) by post.thorcom.com with esmtp (Exim 4.14) id 1AvFlN-0001fD-Q2 for rsgb_lf_group@blacksheep.org; Mon, 23 Feb 2004 13:04:45 +0000 Received: (qmail 18837 invoked from network); 23 Feb 2004 13:04:44 -0000 X-Fake-Domain: unknown Received: from unknown (HELO w8k3f0.freeler.nl) ([62.21.132.35]) (envelope-sender ) by smtp05.freeler.nl (qmail-ldap-1.03) with SMTP for ; 23 Feb 2004 13:04:43 -0000 Message-ID: <6.0.1.1.2.20040223140335.030ab0b0@POP3.freeler.nl> X-Sender: FRE0000086604@POP3.freeler.nl (Unverified) X-Mailer: QUALCOMM Windows Eudora Version 6.0.1.1 Date: Mon, 23 Feb 2004 14:04:28 +0100 To: rsgb_lf_group@blacksheep.org From: "Dick Rollema" In-reply-to: References: <000701c3f7a9$3efe6920$6507a8c0@Main> <002901c3f7e4$ef6b59e0$a71279d1@jsm> <000c01c3f997$04835680$e3c428c3@erica> MIME-Version: 1.0 Subject: Re: LF: Re: VO1NA QRV again Content-Type: text/html; charset=windows-1252 X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=HTML_MESSAGE autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Content-transfer-encoding: 8bit Nothing seen of Joe's signal.

73, Dick, PA0SE


At 00:23 23-2-04, you wrote:
Peter,
I'll start watching on the half hour starting 2330.
Brian's grab is showing good reception at the moment.

Cheers
Joe

On Sun, 22 Feb 2004, g3ldo wrote:

>
> Joe
> >
> > One of the 100 metre wires is now freed from the tree tops. The
> > field strength is much better but not quite as good as with the
> > 2 wire system.  I'm running 100 watts at 1.5 amps and will
> > be on 137.777 kHz dot 30 tonight starting 0000 UTC.
>
> Will you be on tonight. I will transmit on 135.921 something on the half
> hour.
>
> Regards,
> Peter, G3LDO
>
>
>
>
>
From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 91982 invoked from network); 20 Feb 2004 09:32:33 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore04.plus.net with SMTP; 20 Feb 2004 09:32:33 -0000 Received: (qmail 5202 invoked from network); 20 Feb 2004 09:32:33 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 20 Feb 2004 09:32:32 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1Au71M-00016e-9X for dave@picks.force9.co.uk; Fri, 20 Feb 2004 09:32:32 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Au6zZ-0007Q1-Qm for rs_out@blacksheep.org; Fri, 20 Feb 2004 09:30:41 +0000 Received: from [213.218.75.234] (helo=smtp05.freeler.nl) by post.thorcom.com with esmtp (Exim 4.14) id 1Au6zU-0007Ps-9v for rsgb_lf_group@blacksheep.org; Fri, 20 Feb 2004 09:30:36 +0000 Received: (qmail 11538 invoked from network); 20 Feb 2004 09:30:35 -0000 X-Fake-Domain: unknown Received: from unknown (HELO w8k3f0.freeler.nl) ([62.21.133.232]) (envelope-sender ) by smtp05.freeler.nl (qmail-ldap-1.03) with SMTP for ; 20 Feb 2004 09:30:33 -0000 Message-ID: <6.0.1.1.2.20040220101033.03444740@POP3.freeler.nl> X-Sender: FRE0000086604@POP3.freeler.nl (Unverified) X-Mailer: QUALCOMM Windows Eudora Version 6.0.1.1 Date: Fri, 20 Feb 2004 10:31:25 +0100 To: rsgb_lf_group@blacksheep.org From: "Dick Rollema" In-reply-to: <000001c3f6d5$8a90acb0$fce8c593@rsch15> References: <000001c3f6d5$8a90acb0$fce8c593@rsch15> MIME-Version: 1.0 Subject: Re: LF: RE: RF Current meter Content-Type: text/html; charset=windows-1252 X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=HTML_MESSAGE autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Content-transfer-encoding: 8bit Dear Gary, LF-Group,

The coupling between the primary and secundary winding of the current transformer must be purely inductive.  But even with a one-turn primary there is also capacitive coupling. Especially when the voltage on the primary is high, for instance when the meter is clamped over an  LF aerial when transmitting, the capacitive coupling causes an extra current through the meter circuit.  The circuit  for that current is closed via the capacitance of the measuring instrument and its connecting wires to earth.

To avoid this effect in my instrument I placed a small screen inside the toroid that shields the secundary winding from the primary.
("Pliers-type RF current probe", Technical Topics, RadCom, October 1992).

It is easy to check whether capacitive coupling influences the measurement.
1. Take a reading.
2. Turn the clamp  over 180 degrees.  This reverses the current in the secunday winding by inductive coupling but does not effect the current by capacitive coupling.
3. Read the instrument again.

If  readings 1 and 3 differ take the average of the two as the correct value.

When measuring current in earth wires the problem does not arise because voltage on the wire usually is very low.

73, Dick,  PA0SE

At 11:45 19-2-04, you wrote:
Dear Gary, LF Group

>"When I have looked at designs in amateur radio magazines or internet
for a
>clip on RF Ammeter the designs seem to be limited to 2 ranges (100mA &
1A
>FSD), is there a limit to the range of this type RF Ammeter or can the
>ranges be extented to say 5 Amps maybe? is there a calculation to
extend >the
>range ?"
>My LF antenna seems to be showing in excess of one Amp so I need an RF
>Ammeter with a greater range than 1A.

For ammeters using current transformers, you can increase the FSD by
INCREASING the number of turns on the secondary of the transformer
(current transformation ratio for a transformer being the inverse of the
voltage ratio). So if you want to increase meter FSD by a factor N, just
increase the number of turns on the secondary (meter) side by N. This
divides the current going through the rectifier and meter by a factor of
N also, achieving the desired result. There are a number of second-order
effects that may alter the calibration somewhat, but experience shows
these are usually pretty small.

Shunting a thermocouple meter can be problematic, partly because the
thermocouple resistance is usually pretty low to start with, and partly
because it changes as the heater element heats up with increasing
current. A more reliable way of extending the range up or down is to use
a current transformer again. So using a 1:N transformer with the "N"
winding connected to the ammeter will increase the FSD by a factor of N.
Provided the impedance of the winding inductance is large compared to
the meter impedance, and primary and secondary are closely coupled, this
is an accurate way of changing the meter range - so don't reject
thermocouple meters just because they don't have the range you require!


Cheers, Jim Moritz
73 de M0BMU
From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 10828 invoked from network); 4 Feb 2004 18:21:03 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore04.plus.net with SMTP; 4 Feb 2004 18:21:03 -0000 Received: (qmail 75966 invoked from network); 4 Feb 2004 18:21:03 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 4 Feb 2004 18:21:02 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AoRe1-000JdS-SV for dave@picks.force9.co.uk; Wed, 04 Feb 2004 18:21:01 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AoRd5-0004pZ-Dp for rs_out@blacksheep.org; Wed, 04 Feb 2004 18:20:03 +0000 Received: from [213.218.75.230] (helo=smtp01.freeler.nl) by post.thorcom.com with esmtp (Exim 4.14) id 1AoRd4-0004pQ-6s for rsgb_lf_group@blacksheep.org; Wed, 04 Feb 2004 18:20:02 +0000 Received: (qmail 1882 invoked from network); 4 Feb 2004 18:20:01 -0000 X-Fake-Domain: unknown Received: from unknown (HELO w8k3f0.freeler.nl) ([62.21.137.217]) (envelope-sender ) by smtp01.freeler.nl (qmail-ldap-1.03) with SMTP for ; 4 Feb 2004 18:20:01 -0000 Message-ID: <6.0.1.1.2.20040204191120.037d6130@POP3.freeler.nl> X-Sender: FRE0000086604@POP3.freeler.nl (Unverified) X-Mailer: QUALCOMM Windows Eudora Version 6.0.1.1 Date: Wed, 04 Feb 2004 19:13:19 +0100 To: rsgb_lf_group@blacksheep.org From: "Dick Rollema" In-reply-to: <001301c3eb36$f054da80$ee9bfea9@oben> References: <6.0.1.1.2.20040204142244.032337e0@POP3.freeler.nl> <001301c3eb36$f054da80$ee9bfea9@oben> MIME-Version: 1.0 Subject: Re: LF: Re: Manual SPM-3 Content-Type: text/html; charset=windows-1252 X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.5 required=5.0 tests=HTML_20_30,HTML_MESSAGE autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Content-transfer-encoding: 8bit Dear Peter,

This goes to PA3DUK as well.
With three sources to chose from he should be able to obtain a manual.

Many thanks on behalf of PA3DUK.

73, Dick, PA0SE

At 16:52 4-2-04, you wrote:
Hello Dick,
have a look at www.rainer-foertig.de.
73, Peter, dj9dw.
----- Original Message -----
From: Dick Rollema
To: LF-Group
Cc: PA3duk@muurkrant.nl
Sent: Wednesday, February 04, 2004 2:26 PM
Subject: LF: Manual SPM-3

To All from PA0SE

PA3DUK of The Hague has obtained a Wandel & Goltermann selective level meter type SPM-3. But he has no manual for it.
Anyone knows where to find one?

73, Dick, PA0SE
From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 26483 invoked from network); 4 Feb 2004 15:24:14 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore04.plus.net with SMTP; 4 Feb 2004 15:24:14 -0000 Received: (qmail 52657 invoked from network); 4 Feb 2004 15:24:14 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 4 Feb 2004 15:24:11 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AoOst-000DNz-L8 for dave@picks.force9.co.uk; Wed, 04 Feb 2004 15:24:11 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AoOsB-0002uZ-P7 for rs_out@blacksheep.org; Wed, 04 Feb 2004 15:23:27 +0000 Received: from [213.218.75.235] (helo=smtp06.freeler.nl) by post.thorcom.com with esmtp (Exim 4.14) id 1AoOsA-0002uQ-Qk for rsgb_lf_group@blacksheep.org; Wed, 04 Feb 2004 15:23:26 +0000 Received: (qmail 15388 invoked from network); 4 Feb 2004 15:23:26 -0000 X-Fake-Domain: unknown Received: from unknown (HELO w8k3f0.freeler.nl) ([62.21.138.6]) (envelope-sender ) by smtp06.freeler.nl (qmail-ldap-1.03) with SMTP for ; 4 Feb 2004 15:23:25 -0000 Message-ID: <6.0.1.1.2.20040204161050.031fce50@POP3.freeler.nl> X-Sender: FRE0000086604@POP3.freeler.nl (Unverified) X-Mailer: QUALCOMM Windows Eudora Version 6.0.1.1 Date: Wed, 04 Feb 2004 16:11:45 +0100 To: rsgb_lf_group@blacksheep.org From: "Dick Rollema" In-reply-to: <000701c3eb2a$109bb6e0$6507a8c0@Main> References: <6.0.1.1.2.20040204142244.032337e0@POP3.freeler.nl> <000701c3eb2a$109bb6e0$6507a8c0@Main> MIME-Version: 1.0 Subject: Re: LF: Re: Manual SPM-3 Content-Type: text/html; charset=windows-1252 X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=HTML_MESSAGE autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Content-transfer-encoding: 8bit Thanks Alan,

This will also be passed on to PA3DUK.

73, Dick, PA0SE

At 15:20 4-2-04, you wrote:
Hi Dick, I have the W&G  SPM-3 manual as four  .PDF files which may be more
convenient

Cheers de Alan G3NYK
alan.melia@btinternet.com

----- Original Message -----
From: "Dick Rollema" <d.w.rollema@freeler.nl>
To: "LF-Group" <rsgb_lf_group@blacksheep.org>
Cc: <PA3duk@muurkrant.nl>
Sent: 04 February 2004 13:26
Subject: LF: Manual SPM-3


> To All from PA0SE
>
> PA3DUK of The Hague has obtained a Wandel & Goltermann selective level
> meter type SPM-3. But he has no manual for it.
> Anyone knows where to find one?
>
> 73, Dick, PA0SE
From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 55061 invoked from network); 4 Feb 2004 14:18:05 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore02.plus.net with SMTP; 4 Feb 2004 14:18:05 -0000 Received: (qmail 6081 invoked from network); 4 Feb 2004 14:18:05 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 4 Feb 2004 14:18:04 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AoNqu-0001RB-7l for dave@picks.force9.co.uk; Wed, 04 Feb 2004 14:18:04 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AoNqB-0000Xw-09 for rs_out@blacksheep.org; Wed, 04 Feb 2004 14:17:19 +0000 Received: from [213.218.75.230] (helo=smtp01.freeler.nl) by post.thorcom.com with esmtp (Exim 4.14) id 1AoNqA-0000Xn-0L for rsgb_lf_group@blacksheep.org; Wed, 04 Feb 2004 14:17:18 +0000 Received: (qmail 9153 invoked from network); 4 Feb 2004 14:17:17 -0000 X-Fake-Domain: unknown Received: from unknown (HELO w8k3f0.freeler.nl) ([62.21.133.222]) (envelope-sender ) by smtp01.freeler.nl (qmail-ldap-1.03) with SMTP for ; 4 Feb 2004 14:17:16 -0000 Message-ID: <6.0.1.1.2.20040204150610.0320a100@POP3.freeler.nl> X-Sender: FRE0000086604@POP3.freeler.nl (Unverified) X-Mailer: QUALCOMM Windows Eudora Version 6.0.1.1 Date: Wed, 04 Feb 2004 15:07:27 +0100 To: rsgb_lf_group@blacksheep.org From: "Dick Rollema" In-reply-to: <003401c3eb25$9f36ec80$fad5fea9@smiley> References: <6.0.1.1.2.20040204142244.032337e0@POP3.freeler.nl> <003401c3eb25$9f36ec80$fad5fea9@smiley> MIME-Version: 1.0 Subject: Re: LF: Re: Manual SPM-3 Content-Type: text/html; charset=windows-1252 X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.5 required=5.0 tests=HTML_20_30,HTML_MESSAGE autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Content-transfer-encoding: 8bit Thanks Tracey,

I will pass your message on to PA3DUK and ask him to contact you directly.

73, Dick, PA0SE

At 14:48 4-2-04, you wrote:
Hello Dick
 
I have an original W&G manual for the SPM-3.
 
73s Tracey
 
Tracey
----- Original Message -----
From: Dick Rollema
To: LF-Group
Cc: PA3duk@muurkrant.nl
Sent: Wednesday, February 04, 2004 1:26 PM
Subject: LF: Manual SPM-3

To All from PA0SE

PA3DUK of The Hague has obtained a Wandel & Goltermann selective level meter type SPM-3. But he has no manual for it.
Anyone knows where to find one?

73, Dick, PA0SE
From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 25547 invoked from network); 4 Feb 2004 13:32:31 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore03.plus.net with SMTP; 4 Feb 2004 13:32:31 -0000 Received: (qmail 90599 invoked from network); 4 Feb 2004 13:32:31 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 4 Feb 2004 13:32:30 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AoN8o-000NBj-1e for dave@picks.force9.co.uk; Wed, 04 Feb 2004 13:32:30 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AoN7o-0004e6-DA for rs_out@blacksheep.org; Wed, 04 Feb 2004 13:31:28 +0000 Received: from [213.218.75.233] (helo=smtp04.freeler.nl) by post.thorcom.com with esmtp (Exim 4.14) id 1AoN7n-0004dw-JY for rsgb_lf_group@blacksheep.org; Wed, 04 Feb 2004 13:31:27 +0000 Received: (qmail 22106 invoked from network); 4 Feb 2004 13:31:27 -0000 X-Fake-Domain: unknown Received: from unknown (HELO w8k3f0.freeler.nl) ([62.21.167.190]) (envelope-sender ) by smtp04.freeler.nl (qmail-ldap-1.03) with SMTP for ; 4 Feb 2004 13:31:26 -0000 Message-ID: <6.0.1.1.2.20040204142244.032337e0@POP3.freeler.nl> X-Sender: FRE0000086604@POP3.freeler.nl (Unverified) X-Mailer: QUALCOMM Windows Eudora Version 6.0.1.1 Date: Wed, 04 Feb 2004 14:26:04 +0100 To: "LF-Group" From: "Dick Rollema" Cc: PA3duk@muurkrant.nl MIME-Version: 1.0 Subject: LF: Manual SPM-3 Content-Type: text/html; charset=windows-1252 X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=HTML_MESSAGE autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Content-transfer-encoding: 8bit To All from PA0SE

PA3DUK of The Hague has obtained a Wandel & Goltermann selective level meter type SPM-3. But he has no manual for it.
Anyone knows where to find one?

73, Dick, PA0SE From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 24002 invoked from network); 2 Feb 2004 14:50:12 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore03.plus.net with SMTP; 2 Feb 2004 14:50:12 -0000 Received: (qmail 14250 invoked from network); 2 Feb 2004 14:50:11 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 2 Feb 2004 14:50:10 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AnfOs-0003Qz-FH for dave@picks.force9.co.uk; Mon, 02 Feb 2004 14:50:10 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AnfNY-00020p-JU for rs_out@blacksheep.org; Mon, 02 Feb 2004 14:48:48 +0000 Received: from [213.218.75.232] (helo=smtp03.freeler.nl) by post.thorcom.com with esmtp (Exim 4.14) id 1AnfNX-00020g-K9 for rsgb_lf_group@blacksheep.org; Mon, 02 Feb 2004 14:48:47 +0000 Received: (qmail 6736 invoked from network); 2 Feb 2004 14:48:46 -0000 X-Fake-Domain: unknown Received: from unknown (HELO w8k3f0.freeler.nl) ([62.21.167.40]) (envelope-sender ) by smtp03.freeler.nl (qmail-ldap-1.03) with SMTP for ; 2 Feb 2004 14:48:46 -0000 Message-ID: <6.0.1.1.2.20040202153515.02f25e90@POP3.freeler.nl> X-Sender: FRE0000086604@POP3.freeler.nl (Unverified) X-Mailer: QUALCOMM Windows Eudora Version 6.0.1.1 Date: Mon, 02 Feb 2004 15:45:54 +0100 To: "LF-Group" From: "Dick Rollema" MIME-Version: 1.0 Subject: LF: Beaconing by PA0SE Content-Type: text/html; charset=windows-1252 X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=HTML_MESSAGE autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Content-transfer-encoding: 8bit To All from PA0SE

In my message of 30-4-04 I listed the amateurs who had sent me a screenshot of my signal on 135922Hz.
In the meantime I received some more.

The complete list is now: NL9222, DJ8WX, G3AQC, M0BMU,  EA1PX ,   EA4BWZ, CT1DRP, VO1NA.
EA4BWZ  wrote: Mit Beethoven Musik.  Fifth Symphony?

73, Dick, PA0SE From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 98994 invoked from network); 1 Feb 2004 15:30:58 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore03.plus.net with SMTP; 1 Feb 2004 15:30:58 -0000 Received: (qmail 70566 invoked from network); 1 Feb 2004 15:30:57 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 1 Feb 2004 15:30:56 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AnJYm-000IF2-PL for dave@picks.force9.co.uk; Sun, 01 Feb 2004 15:30:56 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AnJXL-0003Ki-JQ for rs_out@blacksheep.org; Sun, 01 Feb 2004 15:29:27 +0000 Received: from [213.218.75.235] (helo=smtp06.freeler.nl) by post.thorcom.com with esmtp (Exim 4.14) id 1AnJXI-0003KZ-LB for rsgb_lf_group@blacksheep.org; Sun, 01 Feb 2004 15:29:24 +0000 Received: (qmail 28458 invoked from network); 1 Feb 2004 15:29:24 -0000 X-Fake-Domain: unknown Received: from unknown (HELO w8k3f0.freeler.nl) ([62.21.137.189]) (envelope-sender ) by smtp06.freeler.nl (qmail-ldap-1.03) with SMTP for ; 1 Feb 2004 15:29:23 -0000 Message-ID: <6.0.1.1.2.20040201150716.03705e90@POP3.freeler.nl> X-Sender: FRE0000086604@POP3.freeler.nl (Unverified) X-Mailer: QUALCOMM Windows Eudora Version 6.0.1.1 Date: Sun, 01 Feb 2004 15:13:35 +0100 To: "LF-Group" From: "Dick Rollema" MIME-Version: 1.0 Subject: LF: Fluctuating background noise Content-Type: text/html; charset=windows-1252 X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=HTML_MESSAGE autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Content-transfer-encoding: 8bit To All from PA0SE,

When looking for VO1NA using SPECTRAN I noticed that at some moments the background noise more or less suddenly decreased and then Joe's signal became visible. The low noise leven was restricted to a narrow band of a few Hertz wide.
Has this been observed by others?
Because it occurred in such a narrow frequency band I think it may be caused by selective fading within the noise spectrum.  And if so may we conclude that the noise arrived via space wave?
Hw?

73, Dick, PA0SE From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 83575 invoked from network); 4 Feb 2004 15:55:12 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore01.plus.net with SMTP; 4 Feb 2004 15:55:12 -0000 Received: (qmail 74624 invoked from network); 4 Feb 2004 15:55:17 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 4 Feb 2004 15:55:15 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AoPMx-000Ir1-2k for dave@picks.force9.co.uk; Wed, 04 Feb 2004 15:55:15 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AoPM6-0005L0-Ub for rs_out@blacksheep.org; Wed, 04 Feb 2004 15:54:22 +0000 Received: from [194.25.134.82] (helo=mailout05.sul.t-online.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AoPM6-0005Kr-9c for rsgb_lf_group@blacksheep.org; Wed, 04 Feb 2004 15:54:22 +0000 X-Fake-Domain: fwd00.aul.t-online.de Received: from fwd00.aul.t-online.de by mailout05.sul.t-online.com with smtp id 1AoPM5-0004Ke-01; Wed, 04 Feb 2004 16:54:21 +0100 X-Fake-Domain: oben Received: from oben (ZemVgeZLQewOkUYBkG+JOKTlIAq9ohkN8dQZgZz8jgb7kz6zdHIqZi@[217.81.168.254]) by fwd00.sul.t-online.com with smtp id 1AoPKe-0flVYm0; Wed, 4 Feb 2004 16:52:52 +0100 X-Bad-Message-ID: no DNS (oben) Message-ID: <001301c3eb36$f054da80$ee9bfea9@oben> From: "dj9dw" To: rsgb_lf_group@blacksheep.org References: <6.0.1.1.2.20040204142244.032337e0@POP3.freeler.nl> Date: Wed, 4 Feb 2004 16:52:48 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2720.3000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Seen: false X-ID: ZemVgeZLQewOkUYBkG+JOKTlIAq9ohkN8dQZgZz8jgb7kz6zdHIqZi Subject: LF: Re: Manual SPM-3 Content-Type: text/html; charset=windows-1252 X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.2 required=5.0 tests=HTML_50_60,HTML_MESSAGE autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Content-transfer-encoding: 8bit
Hello Dick,
have a look at www.rainer-foertig.de.
73, Peter, dj9dw.
----- Original Message -----
Sent: Wednesday, February 04, 2004 2:26 PM
Subject: LF: Manual SPM-3

To All from PA0SE

PA3DUK of The Hague has obtained a Wandel & Goltermann selective level meter type SPM-3. But he has no manual for it.
Anyone knows where to find one?

73, Dick, PA0SE
From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 70382 invoked from network); 3 Feb 2004 06:21:42 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore02.plus.net with SMTP; 3 Feb 2004 06:21:42 -0000 Received: (qmail 46265 invoked from network); 3 Feb 2004 06:21:42 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 3 Feb 2004 06:21:41 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AntwL-000BuG-FQ for dave@picks.force9.co.uk; Tue, 03 Feb 2004 06:21:41 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AntvM-0002Or-VM for rs_out@blacksheep.org; Tue, 03 Feb 2004 06:20:40 +0000 Received: from [194.25.134.81] (helo=mailout03.sul.t-online.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AntvM-0002Oi-G6 for rsgb_lf_group@blacksheep.org; Tue, 03 Feb 2004 06:20:40 +0000 X-Fake-Domain: fwd11.aul.t-online.de Received: from fwd11.aul.t-online.de by mailout03.sul.t-online.com with smtp id 1AntvL-0000lf-03; Tue, 03 Feb 2004 07:20:39 +0100 X-Fake-Domain: oben Received: from oben (SsEzMrZY8ePzEg4rcIzMI+bXhnh3VIZS3FgeIR+18Qp+mkP-xiH+c3@[80.128.179.196]) by fwd11.sul.t-online.com with smtp id 1AntvF-11Tp0i0; Tue, 3 Feb 2004 07:20:33 +0100 X-Bad-Message-ID: no DNS (oben) Message-ID: <001b01c3ea1d$d3b7b8d0$ee9bfea9@oben> From: "dj9dw" To: "LF_group" Date: Tue, 3 Feb 2004 07:20:31 +0100 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2720.3000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Seen: false X-ID: SsEzMrZY8ePzEg4rcIzMI+bXhnh3VIZS3FgeIR+18Qp+mkP-xiH+c3 Subject: LF: Level-rx and generator X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Content-type: text/plain; charset=windows-1252; format=flowed MIME-Version: 1.0 Content-transfer-encoding: 8bit Hello group, I just want to let you know, that Tilo Segert at tilo-mc@gmx.de offers selective levelmeter, 100Hz to 2.1 MHz, BW 100 Hz plus generator for good price. (Guess not more than 200€) The gear is MV62 and GF62 made by Präcitronic (ex GDR). Geri has more info abt it on his website. Copy of handbook is incuded. vy73 de Peter, dj9dw From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 61412 invoked from network); 15 Feb 2004 09:29:31 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore03.plus.net with SMTP; 15 Feb 2004 09:29:31 -0000 Received: (qmail 56533 invoked from network); 15 Feb 2004 09:29:31 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 15 Feb 2004 09:29:28 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AsIae-000ETU-I9 for dave@picks.force9.co.uk; Sun, 15 Feb 2004 09:29:28 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AsIZV-00057I-VK for rs_out@blacksheep.org; Sun, 15 Feb 2004 09:28:17 +0000 Received: from [152.163.225.101] (helo=imo-r05.mx.aol.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AsIZU-000572-UG for rsgb_lf_group@blacksheep.org; Sun, 15 Feb 2004 09:28:17 +0000 X-Fake-Domain: DL4YHF@aol.com Received: from DL4YHF@aol.com by imo-r05.mx.aol.com (mail_out_v36_r4.14.) id l.98.36e2ca3 (4584) for ; Sun, 15 Feb 2004 04:27:40 -0500 (EST) From: DL4YHF@aol.com Message-ID: <98.36e2ca3.2d60958c@aol.com> Date: Sun, 15 Feb 2004 04:27:40 EST To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 X-Mailer: 8.0 for Windows sub 6104 Subject: Re: LF: Re: Timing GPS Content-Type: text/html; charset=windows-1252 X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.2 required=5.0 tests=HTML_20_30,HTML_MESSAGE,HTML_TAG_BALANCE_HTML,NO_REAL_NAME autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Content-transfer-encoding: 8bit In einer eMail vom 14.02.2004 16:21:31 Westeuropäische Normalzeit schreibt dibene@usa.net:

but I have found that, at
least on all the PCs I have tested, it always
returns the value of 1,193,180 Hz.


Hi Alberto,

Cannot confirm this - on my PC (P4) its exactly two times this frequency,
so do not rely on a 'constant' value.

Regards,
Wolf DL4YHF. From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 6335 invoked from network); 12 Feb 2004 11:37:19 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore02.plus.net with SMTP; 12 Feb 2004 11:37:19 -0000 Received: (qmail 30450 invoked from network); 12 Feb 2004 11:37:18 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 X-MSMail-Priority: Normal Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 12 Feb 2004 11:37:14 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1ArF9e-0007b3-Mr for dave@picks.force9.co.uk; Thu, 12 Feb 2004 11:37:14 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ArF8W-0007VL-Dn for rs_out@blacksheep.org; Thu, 12 Feb 2004 11:36:04 +0000 X-No-DNS-For: 80.68.4.13 Received: from [80.68.4.13] (helo=relay.dx.ru) by post.thorcom.com with smtp (Exim 4.14) id 1ArF8T-0007V1-K8 for rsgb_lf_group@blacksheep.org; Thu, 12 Feb 2004 11:36:01 +0000 Received: (qmail 33186 invoked from network); 12 Feb 2004 14:35:30 +0300 X-Fake-Domain: ed.dx Received: from ed.dx (10.0.1.11) by unix.dx with SMTP; 12 Feb 2004 14:35:30 +0300 Date: Thu, 12 Feb 2004 14:36:02 +0000 From: "Ed Lesnichy" X-Suspect-Bulk-Mailer: The Bat! X-Mailer: The Bat! (v1.60q) Personal Organization: Ed Lesnichy X-Priority: 3 Message-ID: <59248411386.20040212143602@dx.ru> To: rsgb_lf_group@blacksheep.org In-reply-to: <65175163833.20040211181525@dx.ru> References: <000901c2d298$27c55160$6507a8c0@Main> <196171825272.20030212174320@dx.ru> <65175163833.20040211181525@dx.ru> MIME-Version: 1.0 Subject: LF: Re:3rd Rus LF_#1 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Level: ** X-Spam-Status: No, hits=2.8 required=5.0 tests=DATE_IN_FUTURE_03_06 autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Dear LF-enthusiasts! EL> What best frequencies should be for a beacon/QSO for Europe? Maybe I'm TX abt 137.600 or 137.200...137.600? and I'm RX in area 137.700...750, but I yet do not know QRM conditions in nr Vladivostok. DP> Will you have e-mail or SMS? I assume to have good DialUp and to use my e-box ed@dx.ru, and also to have access to the site 136.73.ru for updating the information 73! Ed RU6LA ed@dx.ru http://136.73.ru From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 80945 invoked from network); 11 Feb 2004 15:16:48 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore04.plus.net with SMTP; 11 Feb 2004 15:16:48 -0000 Received: (qmail 78833 invoked from network); 11 Feb 2004 15:16:48 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 X-MSMail-Priority: Normal Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 11 Feb 2004 15:16:46 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1Aqw6Y-000KNE-Bw for dave@picks.force9.co.uk; Wed, 11 Feb 2004 15:16:46 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Aqw5O-0008PF-FJ for rs_out@blacksheep.org; Wed, 11 Feb 2004 15:15:34 +0000 X-No-DNS-For: 80.68.4.13 Received: from [80.68.4.13] (helo=relay.dx.ru) by post.thorcom.com with smtp (Exim 4.14) id 1Aqw5L-0008JT-Hb for rsgb_lf_group@blacksheep.org; Wed, 11 Feb 2004 15:15:31 +0000 Received: (qmail 99943 invoked from network); 11 Feb 2004 18:14:58 +0300 X-Fake-Domain: ed.dx Received: from ed.dx (10.0.1.11) by unix.dx with SMTP; 11 Feb 2004 18:14:58 +0300 Date: Wed, 11 Feb 2004 18:15:25 +0000 From: "Ed Lesnichy" X-Suspect-Bulk-Mailer: The Bat! X-Mailer: The Bat! (v1.60q) Personal Organization: Ed Lesnichy X-Priority: 3 Message-ID: <65175163833.20040211181525@dx.ru> To: rsgb_lf_group@blacksheep.org In-reply-to: <196171825272.20030212174320@dx.ru> References: <000901c2d298$27c55160$6507a8c0@Main> <196171825272.20030212174320@dx.ru> MIME-Version: 1.0 Subject: LF: 3rd Rus LF_#1 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Dear LF-enthusiasts! #1 (1500z, 11 Feb, 2004) Our club RU6LWZ with the assistance several UA0-HAMs finishes preparation to 3-rd Rus LF DXpedition to a Far East part of Asian Russia (UA0L). QTH-Loc abt PN63CH nr Vladivostok. Prospective dates of work of expedition on 136kHz: March, 16-28. We shall work QRSS(russian limitation) and CW for xband/QSO, also we plan beacon's tests. Call - UA0LE (under long QRSS UATLE 0=T as in contests) Tower is 90m Now I make the prospective time-table of DXpedition on days. Any offers or advice on our prospective work or skeds are welcomed. What best frequencies should be for a beacon/QSO for Europe? I believe, that the frequency 137.700 was is unsuccessfully chosen at work from Siberia the last year. What are your opinions? 73! Ed RU6LA ed@dx.ru http://136.73.ru From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 3506 invoked from network); 20 Feb 2004 20:00:13 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore03.plus.net with SMTP; 20 Feb 2004 20:00:13 -0000 Received: (qmail 8572 invoked from network); 20 Feb 2004 20:00:13 -0000 Content-Transfer-Encoding: 8bit X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 20 Feb 2004 20:00:11 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AuGol-00026P-Os for dave@picks.force9.co.uk; Fri, 20 Feb 2004 20:00:11 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AuGo3-0002YT-3W for rs_out@blacksheep.org; Fri, 20 Feb 2004 19:59:27 +0000 Received: from [151.164.30.28] (helo=mta4.rcsntx.swbell.net) by post.thorcom.com with esmtp (Exim 4.14) id 1AuGnx-0002YJ-ET for rsgb_lf_group@blacksheep.org; Fri, 20 Feb 2004 19:59:21 +0000 Received: from willow.nutstreet.net (adsl-66-139-38-87.dsl.tulsok.swbell.net [66.139.38.87]) by mta4.rcsntx.swbell.net (8.12.10/8.12.10) with ESMTP id i1KJx7Zq018454 for ; Fri, 20 Feb 2004 13:59:19 -0600 (CST) Received: from willow.nutstreet.net (localhost.localdomain [127.0.0.1]) by willow.nutstreet.net (8.12.10/8.12.10) with ESMTP id i1KJxAmC003841 for ; Fri, 20 Feb 2004 13:59:10 -0600 Received: from localhost (eric@localhost) by willow.nutstreet.net (8.12.10/8.12.10/Submit) with ESMTP id i1KJxAoW003837 for ; Fri, 20 Feb 2004 13:59:10 -0600 Date: Fri, 20 Feb 2004 13:59:09 -0600 (CST) From: "Eric KD5UWL" To: rsgb_lf_group@blacksheep.org In-reply-to: <002901c3f7e4$ef6b59e0$a71279d1@jsm> Message-ID: References: <000701c3f7a9$3efe6920$6507a8c0@Main> <002901c3f7e4$ef6b59e0$a71279d1@jsm> MIME-Version: 1.0 Subject: Re: LF: Antenna Insulators Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 On Fri, 20 Feb 2004, Steve McDonald wrote: > Has anyone had success using white PVC pipe (say ~ 1.5" dia) for insulators? > I am wondering if a 12 -18" piece at the voltage ends of my flatop would be > enough to prevent any flash-over? I am about to find out because I've built just such insulators for my flattop. Mine are 2cm dia by about 35cm and have 9cm corona rings on each end. I'll have pictures soon but are just like the ones Ralph W5JGV built as seen here: http://www.emachine.com/insulators/ring_finished_insulator.jpg That picture is from Ralph's page for these insulators which is here: http://www.emachine.com/insulators.htm The mast material for my flattop was delivered yesterday, so I hope to have WD2XFX back on the air by the time the weekend is over ... and I'll see how these insulators perform. Good luck, Eric From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 98968 invoked from network); 18 Feb 2004 20:13:11 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore03.plus.net with SMTP; 18 Feb 2004 20:13:11 -0000 Received: (qmail 35363 invoked from network); 18 Feb 2004 20:13:10 -0000 Content-Transfer-Encoding: 8bit X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 18 Feb 2004 20:13:00 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AtY44-0007hM-BU for dave@picks.force9.co.uk; Wed, 18 Feb 2004 20:13:00 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AtY3T-00078V-Em for rs_out@blacksheep.org; Wed, 18 Feb 2004 20:12:23 +0000 Received: from [64.164.98.56] (helo=mtaw6.prodigy.net) by post.thorcom.com with esmtp (Exim 4.14) id 1AtY3L-00078E-JG for rsgb_lf_group@blacksheep.org; Wed, 18 Feb 2004 20:12:15 +0000 X-Fake-Domain: willow.nutstreet.net Received: from willow.nutstreet.net (adsl-66-139-38-87.dsl.tulsok.swbell.net [66.139.38.87]) by mtaw6.prodigy.net (8.12.10/8.12.10) with ESMTP id i1IKBFJ0016223 for ; Wed, 18 Feb 2004 12:11:21 -0800 (PST) Received: from willow.nutstreet.net (localhost.localdomain [127.0.0.1]) by willow.nutstreet.net (8.12.10/8.12.10) with ESMTP id i1IKCA6O001365 for ; Wed, 18 Feb 2004 14:12:10 -0600 Received: from localhost (eric@localhost) by willow.nutstreet.net (8.12.10/8.12.10/Submit) with ESMTP id i1IKC9A3001361 for ; Wed, 18 Feb 2004 14:12:10 -0600 Date: Wed, 18 Feb 2004 14:12:09 -0600 (CST) From: "Eric KD5UWL" To: "Rsgb_Lf_Group" In-reply-to: Message-ID: References: MIME-Version: 1.0 Subject: Re: LF: RF Current meter Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Hi, I use this homemade one - works into the current range you are looking for: http://www.cpinternet.com/~lyle/currprob/currprob.htm Works great. Have fun, Eric On Wed, 18 Feb 2004, G4WGT - Gary wrote: > Hi all at LF, > > I have been conducting tests with QRS & DFCW now that I have completed the > DDS VFO & the antenna is back up after storm damage & everything seems to be > ok. > > The main reason for this e-mail is to ask this question, > > "When I have looked at designs in amateur radio magazines or internet for a > clip on RF Ammeter the designs seem to be limited to 2 ranges (100mA & 1A > FSD), is there a limit to the range of this type RF Ammeter or can the > ranges be extented to say 5 Amps maybe? is there a calculation to extend the > range ?" > > My LF antenna seems to be showing in excess of one Amp so I need an RF > Ammeter with a greater range than 1A. > > 73 > > Gary - G4WGT > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 77266 invoked from network); 22 Feb 2004 07:54:06 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore04.plus.net with SMTP; 22 Feb 2004 07:54:06 -0000 Received: (qmail 16848 invoked from network); 22 Feb 2004 07:54:05 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 22 Feb 2004 07:54:02 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AuoR8-0004Ft-Dk for dave@picks.force9.co.uk; Sun, 22 Feb 2004 07:54:02 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AuoQG-0006Nr-6h for rs_out@blacksheep.org; Sun, 22 Feb 2004 07:53:08 +0000 Received: from [64.12.136.5] (helo=imo-m02.mx.aol.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AuoQF-0006Ni-8v for rsgb_lf_group@blacksheep.org; Sun, 22 Feb 2004 07:53:07 +0000 X-Fake-Domain: G0MRF@aol.com Received: from G0MRF@aol.com by imo-m02.mx.aol.com (mail_out_v36_r4.14.) id l.15d.2e5ae479 (3858) for ; Sun, 22 Feb 2004 02:52:32 -0500 (EST) From: G0MRF@aol.com Message-ID: <15d.2e5ae479.2d69b9bf@aol.com> Date: Sun, 22 Feb 2004 02:52:31 EST To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 X-Mailer: 8.0 for Windows sub 670 Subject: Re: LF: 3B9C Content-Type: text/html; charset=windows-1252 X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.7 required=5.0 tests=HTML_MESSAGE,HTML_TAG_BALANCE_HTML,NO_REAL_NAME autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Content-transfer-encoding: 8bit In a message dated 2/21/04 4:07:04 PM GMT Standard Time, Alan.Melia@btinternet.com writes:

Hi Dave...WHAT LF "SEASON" ....it is certainly not a Propagation "season",
summer Dx was better last year than during the autumn. Anyway conditions are
just starting to improve for the next 4 years or so !!
Enjoy the EME..I dont reckon you will work many in the TerrorHurts
frequencies.

Cheers de Alan G3NYK



Hi Alan.

As you say, the propagation season really isn't a 'season' anymore. I remember Jim telling us about his QSO with VO1NA last summer when we were at Rugby. But based on the comments of the team who went to D68 in 2001, the static level on top band was very high for over 75% of the trip. It's no coincidence that medium wave broadcasting is almost non existent near the equator.

Forgive me for wishing for some unusually high sunspot activity in March / April.  It would be nice to have some good propagation on 10 and 6m during our stay in 3B9.

73

David From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 16687 invoked from network); 21 Feb 2004 13:07:25 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore04.plus.net with SMTP; 21 Feb 2004 13:07:25 -0000 Received: (qmail 86781 invoked from network); 21 Feb 2004 13:07:25 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 21 Feb 2004 13:07:21 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AuWqn-000MOw-Id for dave@picks.force9.co.uk; Sat, 21 Feb 2004 13:07:21 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AuWpl-0002Pu-OV for rs_out@blacksheep.org; Sat, 21 Feb 2004 13:06:17 +0000 Received: from [64.12.137.5] (helo=imo-m24.mx.aol.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AuWpl-0002P9-12 for rsgb_lf_group@blacksheep.org; Sat, 21 Feb 2004 13:06:17 +0000 X-Fake-Domain: G0MRF@aol.com Received: from G0MRF@aol.com by imo-m24.mx.aol.com (mail_out_v36_r4.14.) id l.3d.3b045f16 (3996) for ; Sat, 21 Feb 2004 08:05:40 -0500 (EST) From: G0MRF@aol.com Message-ID: <3d.3b045f16.2d68b1a4@aol.com> Date: Sat, 21 Feb 2004 08:05:40 EST To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 X-Mailer: 8.0 for Windows sub 670 Subject: Re: LF: 3B9C Content-Type: text/html; charset=windows-1252 X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.9 required=5.0 tests=HTML_20_30,HTML_MESSAGE,HTML_TAG_BALANCE_HTML,LINK_TO_NO_SCHEME,NO_REAL_NAME autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Content-transfer-encoding: 8bit In a message dated 2/21/04 10:27:25 AM GMT Standard Time, tom@telemetry.demon.co.uk writes:

David

Yes but are you going to put 3B9C on 136??

73, Tom G3OLB



Well spotted Tom.

I am off to Rodrigues with the 3B9C team but unfortunately no 136kHz.  I did consider taking  receiver 'bits' and looking for  EU  VK  or ZL.........It was even close to the Russian operation.....but it's getting late in the LF season and a long way south.
I'll have to be satisfied with EME SAT and SSTV.

Hope to see everyone on the LF reflector somewhere in the 3B9C log.

73

David       G0MRF       Web site 3B9C    From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 20656 invoked from network); 20 Feb 2004 23:59:19 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore04.plus.net with SMTP; 20 Feb 2004 23:59:19 -0000 Received: (qmail 26927 invoked from network); 20 Feb 2004 23:59:19 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 20 Feb 2004 23:59:18 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AuKYA-0006qI-8t for dave@picks.force9.co.uk; Fri, 20 Feb 2004 23:59:18 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AuKXV-00020S-B4 for rs_out@blacksheep.org; Fri, 20 Feb 2004 23:58:37 +0000 Received: from [64.12.137.5] (helo=imo-m24.mx.aol.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AuKXU-0001zu-Ih for rsgb_lf_group@blacksheep.org; Fri, 20 Feb 2004 23:58:36 +0000 X-Fake-Domain: G0MRF@aol.com Received: from G0MRF@aol.com by imo-m24.mx.aol.com (mail_out_v36_r4.14.) id l.131.2a3ec779 (4262) for ; Fri, 20 Feb 2004 18:58:00 -0500 (EST) From: G0MRF@aol.com Message-ID: <131.2a3ec779.2d67f908@aol.com> Date: Fri, 20 Feb 2004 18:58:00 EST To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 X-Mailer: 8.0 for Windows sub 670 Subject: LF: G0MIN or good things come to those who wait. Content-Type: text/html; charset=windows-1252 X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.7 required=5.0 tests=HTML_MESSAGE,HTML_TAG_BALANCE_HTML,NO_REAL_NAME autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Content-transfer-encoding: 8bit

Some time ago my local club station at Whitton operated 73 and 136kHz on a Friday night.
This was a great learning experience for the club members as usually something dramatic would happen. Unfortunately we had to close the LF operation as some fast growing conifers became entangled with the antenna. As they belonged to the church next to the community centre there wasn't very much we could do.........G0MIN QRT!

6 months ago some nasty looking cracks appeared in one of the community centre's walls and after an inspection the local authority decided the trees were responsible.

Earlier this week 6 trees were felled and we now have an unobstructed wire 250 feet long with the far end attached to the church 90ft AGL.

So from next week we'll be back on a Friday evening with something between 500mW and 1W  ERP.   Yippee  It's been too long.

73

David   G0MRF

 From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 68388 invoked from network); 19 Feb 2004 08:10:36 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore03.plus.net with SMTP; 19 Feb 2004 08:10:36 -0000 Received: (qmail 87239 invoked from network); 19 Feb 2004 08:10:35 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 19 Feb 2004 08:10:33 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AtjGS-000Luv-SO for dave@picks.force9.co.uk; Thu, 19 Feb 2004 08:10:32 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AtjFF-0002pf-Gg for rs_out@blacksheep.org; Thu, 19 Feb 2004 08:09:17 +0000 Received: from [64.12.137.4] (helo=imo-m23.mx.aol.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AtjFE-0002pQ-KX for rsgb_lf_group@blacksheep.org; Thu, 19 Feb 2004 08:09:16 +0000 X-Fake-Domain: G0MRF@aol.com Received: from G0MRF@aol.com by imo-m23.mx.aol.com (mail_out_v36_r4.14.) id l.cc.2850f59c (3996) for ; Thu, 19 Feb 2004 03:08:40 -0500 (EST) From: G0MRF@aol.com Message-ID: Date: Thu, 19 Feb 2004 03:08:40 EST To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 X-Mailer: 8.0 for Windows sub 670 Subject: Re: LF: RF Current meter Content-Type: text/html; charset=windows-1252 X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.7 required=5.0 tests=HTML_MESSAGE,HTML_TAG_BALANCE_HTML,NO_REAL_NAME autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Content-transfer-encoding: 8bit In a message dated 2/18/04 8:03:32 PM GMT Standard Time, g4wgt@talkgas.net writes:

"When I have looked at designs in amateur radio magazines or internet for a
clip on RF Ammeter the designs seem to be limited to 2 ranges (100mA &1A
FSD), is there a limit to the range of this type RF Ammeter or can the
ranges be extented to say 5 Amps maybe? is there a calculation to extend the
range ?"

My LF antenna seems to be showing in excess of one Amp so I need an RF
Ammeter with a greater range than 1A.

73

Gary - G4WGT




Hello Gary.

I managed to take one of the old Army 0.5A  FSD ammeters and add shunts using resistors. This gave 0-5 Amps full scale.  Worked fine for about a year. Then one day it got rather damp and one puff of smoke later......stopped working.

David    'MRF From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 28851 invoked from network); 10 Feb 2004 15:37:07 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore01.plus.net with SMTP; 10 Feb 2004 15:37:07 -0000 Received: (qmail 59058 invoked from network); 10 Feb 2004 15:38:15 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 10 Feb 2004 15:38:11 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AqZxj-000Eq3-6J for dave@picks.force9.co.uk; Tue, 10 Feb 2004 15:38:11 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AqZwi-0008Fq-1p for rs_out@blacksheep.org; Tue, 10 Feb 2004 15:37:08 +0000 Received: from [205.188.144.208] (helo=imo-d22.mx.aol.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AqZwc-0008Fh-OK for rsgb_lf_group@blacksheep.org; Tue, 10 Feb 2004 15:37:02 +0000 X-Fake-Domain: G0MRF@aol.com Received: from G0MRF@aol.com by imo-d22.mx.aol.com (mail_out_v36_r4.12.) id l.19e.200be7b5 (25914) for ; Tue, 10 Feb 2004 10:36:28 -0500 (EST) From: G0MRF@aol.com Message-ID: <19e.200be7b5.2d5a547c@aol.com> Date: Tue, 10 Feb 2004 10:36:28 EST To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 X-Mailer: 8.0 for Windows sub 670 Subject: Re: LF: Timing GPS Content-Type: text/html; charset=windows-1252 X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.7 required=5.0 tests=HTML_MESSAGE,HTML_TAG_BALANCE_HTML,NO_REAL_NAME autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Content-transfer-encoding: 8bit In a message dated 2/10/04 12:35:33 PM GMT Standard Time, ACTALBOT@mail.dstl.gov.uk writes:

Well, I was really thinking of GPS locked PSK rather than any incoherent
mode.  WIthout the need for clock and frame timing recovery we could scrape
every possible advantage for coherent signalling.  With such superb accuarcy
of timing even without carrier recovery, it seems a pity to throw all the
advantages away by using on-off keyed power detection.

I did some basic tests last year with GPS locked 1 B/s PSK and with a very
simple decoder managed to receive down to frighteningly low signal levels.

Andy  G4JNT




Andy / group.

Would be happy to try this if there is a way of using the NEMA output from my e-trex venture. No problem with a little home constructing, but would prefer not to spend £86.

73

David From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 3498 invoked from network); 5 Feb 2004 21:52:16 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore01.plus.net with SMTP; 5 Feb 2004 21:52:16 -0000 Received: (qmail 63826 invoked from network); 5 Feb 2004 21:52:34 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 5 Feb 2004 21:52:33 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AorQH-000GTW-7B for dave@picks.force9.co.uk; Thu, 05 Feb 2004 21:52:33 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AorPh-0002U0-Oy for rs_out@blacksheep.org; Thu, 05 Feb 2004 21:51:57 +0000 Received: from [64.12.136.7] (helo=imo-m04.mx.aol.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AorPh-0002Tr-1U for rsgb_lf_group@blacksheep.org; Thu, 05 Feb 2004 21:51:57 +0000 X-Fake-Domain: G0MRF@aol.com Received: from G0MRF@aol.com by imo-m04.mx.aol.com (mail_out_v36_r4.12.) id l.8d.2a72ee9 (3699) for ; Thu, 5 Feb 2004 16:51:17 -0500 (EST) From: G0MRF@aol.com Message-ID: <8d.2a72ee9.2d5414d5@aol.com> Date: Thu, 5 Feb 2004 16:51:17 EST To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 X-Mailer: 8.0 for Windows sub 670 Subject: Re: LF: RE: G0MRF 300w Tx & DDS VFO Content-Type: text/html; charset=windows-1252 X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.7 required=5.0 tests=HTML_MESSAGE,HTML_TAG_BALANCE_HTML,NO_REAL_NAME autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Content-transfer-encoding: 8bit In a message dated 2/5/04 9:45:06 PM GMT Standard Time, g4wgt@talkgas.net writes:

Thanks for the very useful data Jim, I did in fact get a reply from the
organiser of the kit/project &he has stated that several builders have
experienced the same low output &have diagnosed a faulty modamp, I have
doubly checked for the sort of error you suggest &that seems ok, also there
is some gain thro' the ERA-1SM. Now that I have some figures to refer to I
can have another look at the signal path etc. From memory I don't believe
that I am getting anywere near 250mV p-p from the DDS IC before any
amplification takes place.



There have been some problems with the ERA series of Mod-amps.  Even the older MAR series has encountered problems after a change from Silicon to a Silicon/Germanium production process.

Some of the Modamps have a white dot marking the input, others have a dot on the output lead. However, all have the input lead clipped at a 45 degree angle.

Correct operation can usually assessed by the voltage on the output lead.

Any short, even for a fraction of a second, on the input lead removes the bias from the FETs and destroys the device.

73

David From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 13441 invoked from network); 1 Feb 2004 08:33:41 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore01.plus.net with SMTP; 1 Feb 2004 08:33:41 -0000 Received: (qmail 26896 invoked from network); 1 Feb 2004 08:33:40 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 1 Feb 2004 08:33:36 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AnD2u-0006iR-1x for dave@picks.force9.co.uk; Sun, 01 Feb 2004 08:33:36 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AnD2I-0006hw-3K for rs_out@blacksheep.org; Sun, 01 Feb 2004 08:32:58 +0000 Received: from [152.163.225.99] (helo=imo-r03.mx.aol.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AnD2H-0006hF-6k for rsgb_lf_group@blacksheep.org; Sun, 01 Feb 2004 08:32:57 +0000 X-Fake-Domain: G0MRF@aol.com Received: from G0MRF@aol.com by imo-r03.mx.aol.com (mail_out_v36_r4.12.) id l.f7.3606083a (4459) for ; Sun, 1 Feb 2004 03:32:22 -0500 (EST) From: G0MRF@aol.com Message-ID: Date: Sun, 1 Feb 2004 03:32:22 EST To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 X-Mailer: 8.0 for Windows sub 670 Subject: LF: G0MRF 300 w Tx / DDS input Content-Type: text/html; charset=windows-1252 X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.7 required=5.0 tests=HTML_MESSAGE,HTML_TAG_BALANCE_HTML,NO_REAL_NAME autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Content-transfer-encoding: 8bit In a message dated 1/31/04 1:47:14 PM GMT Standard Time, g4wgt@talkgas.net writes:

Hi all at LF,

Can anyone advise me regarding using an external vfo on the 300 w
transmitter external vfo option. Has anyone used this feature? Connecting to
the external vfo input pin produces no output. I have just built the KG6CYN
DDS VFO offered by the G-QRP CLUB.

Output: Buffered 1 Vpp into 50 Ohms for 50KHz to 40 MHz - Non Buffered
Output also provided.

The original can be found at http://www.qsl.net/kg6cyn/DDS_Project.htm

Similar e-mail to David direct.



Hello Gary.

Have just seen your question and Alan's reply.

The external input is designed for CMOS levels. However if you have a DDS with less than 12V P-P then Alan's suggestion of two resistors is a good one. My only thought would be that these should not be of equal value as it would cause false triggering of the 4013.

So, how about 47k and 33k. This would give 4.95 Volts on the input which would allow a 1V margin and would prevent false triggering from noise etc.

However a 1V P-P DDS will still be too low. You need around 3V P-P to be sure.

Assuming you wish to use the DDS and not the internal VXO (permanently) then there's a better choice.

You can use IC2 on the circuit to amplify the DDS.  IC2 has a gain of 10 and would be ideal for a 1V  P-P output DDS

To do this you need to break the connection between L1 C11 and C12.

Feed your DDS into C12, having isolated L1 / C11 and you will have enough signal to drive the CMOS logic.
I also suggest that to avoid the false triggering problem you add a resistor in parallel with either R8 or R9 so that the output of  IC2 is not sitting at 6.0V. If you select a value to give 5 Volts or 7 Volts that would work well.  ( 27k in parallel should be about right)  

Hope that helps.

73

David  G0MRF From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 66370 invoked from network); 26 Feb 2004 20:25:13 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore02.plus.net with SMTP; 26 Feb 2004 20:25:13 -0000 Received: (qmail 93020 invoked from network); 26 Feb 2004 20:25:13 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 26 Feb 2004 20:25:12 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AwS4G-000O59-Co for dave@picks.force9.co.uk; Thu, 26 Feb 2004 20:25:12 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AwS3I-0005uO-Iu for rs_out@blacksheep.org; Thu, 26 Feb 2004 20:24:12 +0000 Received: from [212.135.6.11] (helo=smarthost1.mail.uk.easynet.net) by post.thorcom.com with esmtp (Exim 4.14) id 1AwS3I-0005uF-4r for rsgb_lf_group@blacksheep.org; Thu, 26 Feb 2004 20:24:12 +0000 Received: from tnt-21-165.easynet.co.uk ([212.134.228.165] helo=erica) by smarthost1.mail.uk.easynet.net with smtp (Exim 4.10) id 1AwS3G-000CvW-00 for rsgb_lf_group@blacksheep.org; Thu, 26 Feb 2004 20:24:10 +0000 X-Bad-Message-ID: no DNS (erica) Message-ID: <000401c3fca8$d8295ac0$a5e486d4@erica> From: "g3ldo" To: rsgb_lf_group@blacksheep.org References: <000701c3f7a9$3efe6920$6507a8c0@Main> <002901c3f7e4$ef6b59e0$a71279d1@jsm> <000c01c3f997$04835680$e3c428c3@erica> Date: Thu, 26 Feb 2004 20:40:24 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: Re: LF: Re: VO1NA QRV again Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Heavy QRN last night that even supressed the Loran lines. As the night went on QRN decreased and VO1NA was visible from 0230 and a good complete call ident received at 0600. Peter G3LDO From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 5909 invoked from network); 23 Feb 2004 14:58:05 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore02.plus.net with SMTP; 23 Feb 2004 14:58:05 -0000 Received: (qmail 29097 invoked from network); 23 Feb 2004 14:58:04 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 23 Feb 2004 14:58:03 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AvHX1-0007Qc-O8 for dave@picks.force9.co.uk; Mon, 23 Feb 2004 14:58:03 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AvHWH-0004pj-Hl for rs_out@blacksheep.org; Mon, 23 Feb 2004 14:57:17 +0000 Received: from [212.135.6.10] (helo=smarthost0.mail.uk.easynet.net) by post.thorcom.com with esmtp (Exim 4.14) id 1AvHWH-0004pa-5l for rsgb_lf_group@blacksheep.org; Mon, 23 Feb 2004 14:57:17 +0000 Received: from tnt-18-20.easynet.co.uk ([212.134.224.20] helo=erica) by smarthost0.mail.uk.easynet.net with smtp (Exim 4.10) id 1AvHW9-000CiT-00 for rsgb_lf_group@blacksheep.org; Mon, 23 Feb 2004 14:57:10 +0000 X-Bad-Message-ID: no DNS (erica) Message-ID: <000a01c3fa1f$a4ce0080$14e086d4@erica> From: "g3ldo" To: rsgb_lf_group@blacksheep.org References: <000701c3f7a9$3efe6920$6507a8c0@Main> <002901c3f7e4$ef6b59e0$a71279d1@jsm> <000c01c3f997$04835680$e3c428c3@erica> <000c01c3f99f$d7cda240$11e086d4@erica> Date: Mon, 23 Feb 2004 14:22:56 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: Re: LF: Re: VO1NA QRV again Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Joe > > You started off quite strong around 2330 then faded. I > replied but saw nothing as of 0100. Will run dot 30 > beacon. > Nothing seen of you earlier. Signal peaked to M between 0200 and 0230. Fragments through the night. Peaked again after 0700. During the winter of 2000/ 2001, and at other times, we had some very good LF conditions and it was generally predicted that it would get better as we moved away from the sun spot cycle high. It doesn't seemed to have happened that way. Regards, Peter, G3LDO e-mail Web From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 10038 invoked from network); 22 Feb 2004 23:43:06 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore03.plus.net with SMTP; 22 Feb 2004 23:43:06 -0000 Received: (qmail 14431 invoked from network); 22 Feb 2004 23:43:06 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 22 Feb 2004 23:43:05 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1Av3FZ-0003dl-85 for dave@picks.force9.co.uk; Sun, 22 Feb 2004 23:43:05 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Av3Er-0001sv-R5 for rs_out@blacksheep.org; Sun, 22 Feb 2004 23:42:21 +0000 Received: from [212.135.6.13] (helo=smarthost3.mail.uk.easynet.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Av3Er-0001sm-ER for rsgb_lf_group@blacksheep.org; Sun, 22 Feb 2004 23:42:21 +0000 Received: from tnt-18-17.easynet.co.uk ([212.134.224.17] helo=erica) by smarthost3.mail.uk.easynet.net with smtp (Exim 4.10) id 1Av3Ep-0001S8-00 for rsgb_lf_group@blacksheep.org; Sun, 22 Feb 2004 23:42:19 +0000 X-Bad-Message-ID: no DNS (erica) Message-ID: <000c01c3f99f$d7cda240$11e086d4@erica> From: "g3ldo" To: rsgb_lf_group@blacksheep.org References: <000701c3f7a9$3efe6920$6507a8c0@Main> <002901c3f7e4$ef6b59e0$a71279d1@jsm> <000c01c3f997$04835680$e3c428c3@erica> Date: Sun, 22 Feb 2004 23:58:21 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: Re: LF: Re: VO1NA QRV again Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 > I'll start watching on the half hour starting 2330. > Brian's grab is showing good reception at the moment. > Cheers > Joe > Nothing seen at 2300. Transmitting now at 2340 Regards, Peter, G3LDO e-mail From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 78195 invoked from network); 22 Feb 2004 22:40:12 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore04.plus.net with SMTP; 22 Feb 2004 22:40:12 -0000 Received: (qmail 5901 invoked from network); 22 Feb 2004 22:40:11 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 22 Feb 2004 22:40:08 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1Av2Ge-0001Ip-Mg for dave@picks.force9.co.uk; Sun, 22 Feb 2004 22:40:08 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Av2Fp-00086U-7H for rs_out@blacksheep.org; Sun, 22 Feb 2004 22:39:17 +0000 Received: from [212.135.6.10] (helo=smarthost0.mail.uk.easynet.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Av2Fo-00086L-NS for rsgb_lf_group@blacksheep.org; Sun, 22 Feb 2004 22:39:16 +0000 Received: from tnt-2-227.easynet.co.uk ([195.40.196.227] helo=erica) by smarthost0.mail.uk.easynet.net with smtp (Exim 4.10) id 1Av2Fh-0007b0-00 for rsgb_lf_group@blacksheep.org; Sun, 22 Feb 2004 22:39:10 +0000 X-Bad-Message-ID: no DNS (erica) Message-ID: <000c01c3f997$04835680$e3c428c3@erica> From: "g3ldo" To: rsgb_lf_group@blacksheep.org References: <000701c3f7a9$3efe6920$6507a8c0@Main> <002901c3f7e4$ef6b59e0$a71279d1@jsm> Date: Sun, 22 Feb 2004 22:54:34 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: VO1NA QRV again Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Joe > > One of the 100 metre wires is now freed from the tree tops. The > field strength is much better but not quite as good as with the > 2 wire system. I'm running 100 watts at 1.5 amps and will > be on 137.777 kHz dot 30 tonight starting 0000 UTC. Will you be on tonight. I will transmit on 135.921 something on the half hour. Regards, Peter, G3LDO From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 72121 invoked from network); 12 Feb 2004 23:40:29 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore03.plus.net with SMTP; 12 Feb 2004 23:40:29 -0000 Received: (qmail 16294 invoked from network); 12 Feb 2004 23:40:29 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 12 Feb 2004 23:40:28 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1ArQRY-00047B-7C for dave@picks.force9.co.uk; Thu, 12 Feb 2004 23:40:28 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ArQQm-00062N-KP for rs_out@blacksheep.org; Thu, 12 Feb 2004 23:39:40 +0000 Received: from [212.135.6.11] (helo=smarthost1.mail.uk.easynet.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ArQQm-00062E-8P for rsgb_lf_group@blacksheep.org; Thu, 12 Feb 2004 23:39:40 +0000 Received: from tnt-13-6.easynet.co.uk ([212.134.22.6] helo=erica) by smarthost1.mail.uk.easynet.net with smtp (Exim 4.10) id 1ArQQi-000HFh-00 for rsgb_lf_group@blacksheep.org; Thu, 12 Feb 2004 23:39:36 +0000 X-Bad-Message-ID: no DNS (erica) Message-ID: <001901c3f1c3$bbc87860$061686d4@erica> From: "g3ldo" To: rsgb_lf_group@blacksheep.org References: <20040210184134.KTHX20454.tomts35-srv.bellnexxia.net@smtp.bellnexxia.net> <402A6646.4030006@virgin.net> <1ArPAc-19FrkH0@fwd00.sul.t-online.com> <001a01c3f1bc$ad30ad60$6507a8c0@Main> Date: Thu, 12 Feb 2004 23:55:05 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: LF; beaconing Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Transmitting QRSS60 on the half hour 135.920.6kHz Regards, Peter, G3LDO From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 69453 invoked from network); 9 Feb 2004 08:29:48 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore02.plus.net with SMTP; 9 Feb 2004 08:29:48 -0000 Received: (qmail 4247 invoked from network); 9 Feb 2004 08:29:47 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 9 Feb 2004 08:29:46 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1Aq6na-0000rv-7c for dave@picks.force9.co.uk; Mon, 09 Feb 2004 08:29:46 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Aq6mW-0006qm-Ne for rs_out@blacksheep.org; Mon, 09 Feb 2004 08:28:40 +0000 Received: from [212.135.6.10] (helo=smarthost0.mail.uk.easynet.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Aq6mW-0006qV-9z for rsgb_lf_group@blacksheep.org; Mon, 09 Feb 2004 08:28:40 +0000 Received: from tnt-5-12.easynet.co.uk ([195.40.200.12] helo=erica) by smarthost0.mail.uk.easynet.net with smtp (Exim 4.10) id 1Aq6mU-0002r3-00 for rsgb_lf_group@blacksheep.org; Mon, 09 Feb 2004 08:28:39 +0000 X-Bad-Message-ID: no DNS (erica) Message-ID: <000401c3eee8$f2a181c0$0cc828c3@erica> From: "g3ldo" To: rsgb_lf_group@blacksheep.org References: <6.0.1.1.2.20040201150716.03705e90@POP3.freeler.nl> <002701c3eea2$487a67c0$eee086d4@erica> <4026D0D6.60C47686@att.net> <002f01c3eea6$c54ac7a0$eee086d4@erica> Date: Mon, 9 Feb 2004 08:43:52 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: Re: LF: Re: TA. Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 > Peter, > Got you on both frequencies. Good copy. > I replied on 137.777 but guess the antenna is still too low. > Joe In spite of your reduced erp I got a complete call on the Argo grab between 0330 and 0400. Woke up early and put the transmitter on for half an hour at 0530. Saw it was being received by Dex so transmitted an extra L at QRSS60 for good measure but I think the signal was fading by then. Saw OH0ULO on QRSS3 during yesterday evening. Tried to respond but link between computer and transmitter had failed. Repared with a transistor from scrap electronic shower control unit. By the time I was back on the air the OH0 had faded. Regards, Peter, G3LDO From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 13366 invoked from network); 9 Feb 2004 00:52:51 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore01.plus.net with SMTP; 9 Feb 2004 00:52:51 -0000 Received: (qmail 73301 invoked from network); 9 Feb 2004 00:53:42 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 9 Feb 2004 00:53:41 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1ApzgD-000Iqf-6k for dave@picks.force9.co.uk; Mon, 09 Feb 2004 00:53:41 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Apzfe-0000ga-Sa for rs_out@blacksheep.org; Mon, 09 Feb 2004 00:53:06 +0000 Received: from [212.135.6.14] (helo=smarthost4.mail.uk.easynet.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Apzfe-0000gR-HM for rsgb_lf_group@blacksheep.org; Mon, 09 Feb 2004 00:53:06 +0000 Received: from tnt-5-19.easynet.co.uk ([195.40.200.19] helo=erica) by smarthost4.mail.uk.easynet.net with smtp (Exim 4.10) id 1Apzfd-0009IA-00 for rsgb_lf_group@blacksheep.org; Mon, 09 Feb 2004 00:53:05 +0000 X-Bad-Message-ID: no DNS (erica) Message-ID: <003801c3eea9$514584a0$eee086d4@erica> From: "g3ldo" To: rsgb_lf_group@blacksheep.org References: <000d01c3eea3$161bb3a0$6507a8c0@Main> Date: Mon, 9 Feb 2004 01:08:26 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: T/A 8/9th Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 > Hi Peter and Dex, no sign of Joe here yet but I have a very high noise level > at present. > > Good Luck > Cheers de Alan G3NYK Nothing seen of Joe here tonight so far Regards, Peter, G3LDO e-mail From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 43653 invoked from network); 9 Feb 2004 00:35:37 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore02.plus.net with SMTP; 9 Feb 2004 00:35:37 -0000 Received: (qmail 80389 invoked from network); 9 Feb 2004 00:35:37 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 9 Feb 2004 00:35:36 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1ApzOi-000Kfi-DM for dave@picks.force9.co.uk; Mon, 09 Feb 2004 00:35:36 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ApzO0-00007w-GW for rs_out@blacksheep.org; Mon, 09 Feb 2004 00:34:52 +0000 Received: from [212.135.6.12] (helo=smarthost2.mail.uk.easynet.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ApzO0-00007n-54 for rsgb_lf_group@blacksheep.org; Mon, 09 Feb 2004 00:34:52 +0000 Received: from tnt-2-223.easynet.co.uk ([195.40.196.223] helo=erica) by smarthost2.mail.uk.easynet.net with smtp (Exim 4.10) id 1ApzNz-00096f-00 for rsgb_lf_group@blacksheep.org; Mon, 09 Feb 2004 00:34:51 +0000 X-Bad-Message-ID: no DNS (erica) Message-ID: <002f01c3eea6$c54ac7a0$eee086d4@erica> From: "g3ldo" To: rsgb_lf_group@blacksheep.org References: <6.0.1.1.2.20040201150716.03705e90@POP3.freeler.nl> <002701c3eea2$487a67c0$eee086d4@erica> <4026D0D6.60C47686@att.net> Date: Mon, 9 Feb 2004 00:50:14 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: Re: LF: Re: TA. Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 > Peter, > > I believe your signal is visible here in NC but it is so close to my > local loran line at 135921.053 kHz it's hard to tell for sure. Could > you possible bump the freq up a tad? > OK, now on135922.1 according to the frequency counter Regards, Peter, G3LDO From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 82042 invoked from network); 9 Feb 2004 00:02:53 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore01.plus.net with SMTP; 9 Feb 2004 00:02:53 -0000 Received: (qmail 48728 invoked from network); 9 Feb 2004 00:03:44 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 9 Feb 2004 00:03:43 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1Apytr-000CYY-K8 for dave@picks.force9.co.uk; Mon, 09 Feb 2004 00:03:43 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Apysv-0006vv-Ie for rs_out@blacksheep.org; Mon, 09 Feb 2004 00:02:45 +0000 Received: from [212.135.6.12] (helo=smarthost2.mail.uk.easynet.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Apysv-0006vm-6r for rsgb_lf_group@blacksheep.org; Mon, 09 Feb 2004 00:02:45 +0000 Received: from tnt-5-159.easynet.co.uk ([195.40.200.159] helo=erica) by smarthost2.mail.uk.easynet.net with smtp (Exim 4.10) id 1Apysu-0002wm-00 for rsgb_lf_group@blacksheep.org; Mon, 09 Feb 2004 00:02:44 +0000 X-Bad-Message-ID: no DNS (erica) Message-ID: <002701c3eea2$487a67c0$eee086d4@erica> From: "g3ldo" To: rsgb_lf_group@blacksheep.org References: <6.0.1.1.2.20040201150716.03705e90@POP3.freeler.nl> Date: Mon, 9 Feb 2004 00:18:08 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: TA. Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Transmitting on the half hour QRSS30 135.921kHz Looking for VO1NA on the hour Regards, Peter, G3LDO From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 76675 invoked from network); 8 Feb 2004 19:35:24 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore02.plus.net with SMTP; 8 Feb 2004 19:35:24 -0000 Received: (qmail 57566 invoked from network); 8 Feb 2004 19:35:24 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 8 Feb 2004 19:35:23 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1ApuiB-000EqZ-2P for dave@picks.force9.co.uk; Sun, 08 Feb 2004 19:35:23 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Apuh0-0005oy-7r for rs_out@blacksheep.org; Sun, 08 Feb 2004 19:34:10 +0000 Received: from [212.135.6.14] (helo=smarthost4.mail.uk.easynet.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Apugx-0005op-Oc for rsgb_lf_group@blacksheep.org; Sun, 08 Feb 2004 19:34:07 +0000 Received: from tnt-18-238.easynet.co.uk ([212.134.224.238] helo=erica) by smarthost4.mail.uk.easynet.net with smtp (Exim 4.10) id 1Apugr-0007Bo-00 for rsgb_lf_group@blacksheep.org; Sun, 08 Feb 2004 19:34:02 +0000 X-Bad-Message-ID: no DNS (erica) Message-ID: <000601c3ee7c$bc4ca1c0$eee086d4@erica> From: "g3ldo" To: rsgb_lf_group@blacksheep.org References: <6.0.1.1.2.20040201150716.03705e90@POP3.freeler.nl> Date: Sun, 8 Feb 2004 19:49:22 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: Re: One leg again... Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hi Joe > > After replacing guys on the tower, fighting fearsome fir > trees in chest-deep snow and getting a lot of much needed > exercise in the process, I'm pleased to report that half > my aerial is off the ground but at reduced height. It takes > 70 watts at 1.0 amp so ERP is down at least 6 dB, but I'll > run it tonight starting 2300 UTC 137.777 kHz, dot 30. Good work. Weather conditions make it ideal for transmitting tonight. I will be on 135.921, times and QRSS rate to be deterined later. Regards, Peter, G3LDO From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 11064 invoked from network); 1 Feb 2004 23:06:16 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore03.plus.net with SMTP; 1 Feb 2004 23:06:16 -0000 Received: (qmail 31053 invoked from network); 1 Feb 2004 23:06:16 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 1 Feb 2004 23:06:15 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AnQfP-0007xH-22 for dave@picks.force9.co.uk; Sun, 01 Feb 2004 23:06:15 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AnQeX-0002D4-6V for rs_out@blacksheep.org; Sun, 01 Feb 2004 23:05:21 +0000 Received: from [212.135.6.10] (helo=smarthost0.mail.uk.easynet.net) by post.thorcom.com with esmtp (Exim 4.14) id 1AnQeW-0002Cv-QN for rsgb_lf_group@blacksheep.org; Sun, 01 Feb 2004 23:05:20 +0000 Received: from tnt-21-173.easynet.co.uk ([212.134.228.173] helo=erica) by smarthost0.mail.uk.easynet.net with smtp (Exim 4.10) id 1AnQeV-000HfB-00 for rsgb_lf_group@blacksheep.org; Sun, 01 Feb 2004 23:05:19 +0000 X-Bad-Message-ID: no DNS (erica) Message-ID: <002001c3e91a$09af22c0$ade486d4@erica> From: "g3ldo" To: rsgb_lf_group@blacksheep.org References: Date: Sun, 1 Feb 2004 22:58:57 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: RF level meter Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 I have a Racal-Dana True RMS RF Level Meter 9303. It reads RF level OK but I get this flashing message Er 01, which according to the operator card means "Memory Corrupted, refer to handbook". Snag is I don't have a handbook. There seems to be a lot of interesting computing that can be don with this instrument if only it were working properly. Can anyone help? Regards, Peter, G3LDO From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 16187 invoked from network); 27 Feb 2004 18:31:09 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore03.plus.net with SMTP; 27 Feb 2004 18:31:09 -0000 Received: (qmail 53674 invoked from network); 27 Feb 2004 18:31:08 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 27 Feb 2004 18:31:07 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AwmlO-000Dba-Sg for dave@picks.force9.co.uk; Fri, 27 Feb 2004 18:31:07 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AwmkK-0004WO-61 for rs_out@blacksheep.org; Fri, 27 Feb 2004 18:30:00 +0000 Received: from [213.40.2.14] (helo=gourd.sout.netline.net.uk) by post.thorcom.com with esmtp (Exim 4.14) id 1AwmkJ-0004W9-9v for rsgb_lf_group@blacksheep.org; Fri, 27 Feb 2004 18:29:59 +0000 Received: from [213.40.203.124] (helo=taylormade) by gourd.sout.netline.net.uk with smtp (Exim 4.24) id 1Awmjn-0005MK-V1 for rsgb_lf_group@blacksheep.org; Fri, 27 Feb 2004 18:29:28 +0000 From: "G4WGT - Gary" To: rsgb_lf_group@blacksheep.org Date: Fri, 27 Feb 2004 18:29:39 -0000 Message-ID: MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Importance: Normal In-reply-to: <000001c3fad1$785a5280$fce8c593@RD40004> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: RE: RE: RF Current meter Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Hello Jim & LF Group, Thank you for your recent e-mail, I have seen your design in the recent past but did not give it much thought, but I see from your comments & reading the associated article http://www.picks.plus.com/software/LFtunemeter.pdf that it will be a very worthwile piece of gear to construct. The only query at the moment is regarding the phase meter (1mA-0-1mA), if I were to use a 100uA-0-100uA meter with a shunt would this cause any problems with your design or maybe increasing the value of R2 would be acceptable, (I have this meter already in my junk box), the 1mA meter for V & A metering is not a problem. Just had another thought, I presume that the device is to be inserted in the coax feed prior to the antenna matching arrangement at the antenna end. 73 Gary - G4WGT -----Original Message----- From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org]On Behalf Of James Moritz Sent: 24 February 2004 12:27 To: rsgb_lf_group@blacksheep.org Subject: LF: RE: RF Current meter Dear Gary, LF Group, The RF ammeter circuit in the LF handbook and on K0LR's web page uses a current transformer to develop a voltage of a few volts across a load resistor when the appropriate RF current is flowing in the primary. This voltage is then measured by a simple diode voltmeter to indicate the current. Sounds pretty simple then, but some pitfalls are possible with an RF ammeter of this type...etc. From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 34017 invoked from network); 20 Feb 2004 21:14:02 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore02.plus.net with SMTP; 20 Feb 2004 21:14:02 -0000 Received: (qmail 93341 invoked from network); 20 Feb 2004 21:14:02 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 20 Feb 2004 21:14:01 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AuHyD-000O99-Hs for dave@picks.force9.co.uk; Fri, 20 Feb 2004 21:14:01 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AuHxW-0005Su-0w for rs_out@blacksheep.org; Fri, 20 Feb 2004 21:13:18 +0000 Received: from [213.40.2.23] (helo=bodum.sout.netline.net.uk) by post.thorcom.com with esmtp (Exim 4.14) id 1AuHxV-0005Sg-EP for rsgb_lf_group@blacksheep.org; Fri, 20 Feb 2004 21:13:17 +0000 Received: from [213.40.202.147] (helo=taylormade) by bodum.sout.netline.net.uk with smtp (Exim 4.24) id 1AuHwz-0001pc-Nk for rsgb_lf_group@blacksheep.org; Fri, 20 Feb 2004 21:12:46 +0000 From: "G4WGT - Gary" To: rsgb_lf_group@blacksheep.org Date: Fri, 20 Feb 2004 21:12:54 -0000 Message-ID: MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Importance: Normal In-reply-to: <000001c3f6d5$8a90acb0$fce8c593@rsch15> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: RE: RE: RF Current meter Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Hi to all at LF, Thank you for all the replies, tips & advice, some very en-lightening comments. I have started very simply by constructing the design shown in the LF Experimenters Hand Book by Peter G3LDO. It works fine by using a random (tape recorder VU/Batt) meter from the junk box, its fsd when in a DC test circuit in series with my digi meter is 300uA & resistance 1.15K so its indication is not accurate, just an indication that it is reading RF current. If (as Alan pointed out the increased volts in the probe with higher RF current), I were to use a 500uA fsd meter in a design for a 1A fsd RF current probe would that be linear ie. fsd 5A RF current ? The design by Lyle (K0LR) seem to suggest so), I will try it of course & see what results it gives me ! Then I will try to effect some sort of calibration. I have a 500uA meter with 185R marked on the scale (my digi meter confirms this) & 2 other 500uA with a measured resistance of 200R & 350R. An interesting occurrence when testing the simple RF clip on current meter on the bench, I used my Marathon 5w Tx to provide RF to test the meter, separated a small section of the coax inner & shield, fed into 50R dummy load & got 75% fsd, so I shunted the meter until it just moved off the bottom of the scale, went to the base of the LF vertical whilst transmitting with about 100w DC i/p but there was no reading on the meter, I then removed the shunt & did the same test & got about a 50% fsd reading, I can't work that one out. So, learning curves all the time. 73 Gary - G4WGT From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 87677 invoked from network); 18 Feb 2004 20:03:01 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore04.plus.net with SMTP; 18 Feb 2004 20:03:01 -0000 Received: (qmail 93696 invoked from network); 18 Feb 2004 20:03:01 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 18 Feb 2004 20:03:00 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AtXuO-000O8p-1R for dave@picks.force9.co.uk; Wed, 18 Feb 2004 20:03:00 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AtXtT-0006uY-SJ for rs_out@blacksheep.org; Wed, 18 Feb 2004 20:02:03 +0000 Received: from [213.40.2.15] (helo=bedpan.sout.netline.net.uk) by post.thorcom.com with esmtp (Exim 4.14) id 1AtXtT-0006u7-AX for rsgb_lf_group@blacksheep.org; Wed, 18 Feb 2004 20:02:03 +0000 Received: from [213.40.202.88] (helo=taylormade) by bedpan.sout.netline.net.uk with smtp (Exim 4.24) id 1AtXsx-0004vp-JX for rsgb_lf_group@blacksheep.org; Wed, 18 Feb 2004 20:01:32 +0000 From: "G4WGT - Gary" To: "Rsgb_Lf_Group" Date: Wed, 18 Feb 2004 20:01:37 -0000 Message-ID: MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: RF Current meter Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Hi all at LF, I have been conducting tests with QRS & DFCW now that I have completed the DDS VFO & the antenna is back up after storm damage & everything seems to be ok. The main reason for this e-mail is to ask this question, "When I have looked at designs in amateur radio magazines or internet for a clip on RF Ammeter the designs seem to be limited to 2 ranges (100mA & 1A FSD), is there a limit to the range of this type RF Ammeter or can the ranges be extented to say 5 Amps maybe? is there a calculation to extend the range ?" My LF antenna seems to be showing in excess of one Amp so I need an RF Ammeter with a greater range than 1A. 73 Gary - G4WGT From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 91960 invoked from network); 6 Feb 2004 22:03:16 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore01.plus.net with SMTP; 6 Feb 2004 22:03:16 -0000 Received: (qmail 88743 invoked from network); 6 Feb 2004 22:03:45 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 6 Feb 2004 22:03:43 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1ApE4d-000MlT-Hk for dave@picks.force9.co.uk; Fri, 06 Feb 2004 22:03:43 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ApE2z-0007V2-1l for rs_out@blacksheep.org; Fri, 06 Feb 2004 22:02:01 +0000 Received: from [213.40.2.14] (helo=gourd.sout.netline.net.uk) by post.thorcom.com with esmtp (Exim 4.14) id 1ApE2y-0007Ql-6v for rsgb_lf_group@blacksheep.org; Fri, 06 Feb 2004 22:02:00 +0000 Received: from [213.40.208.159] (helo=taylormade) by gourd.sout.netline.net.uk with smtp (Exim 4.24) id 1ApE2S-0004L2-Mm for rsgb_lf_group@blacksheep.org; Fri, 06 Feb 2004 22:01:29 +0000 From: "G4WGT - Gary" To: "Rsgb_Lf_Group" Date: Fri, 6 Feb 2004 22:01:50 -0000 Message-ID: MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: DDS VFO - BINGO ! Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.6 required=5.0 tests=SUBJ_ALL_CAPS autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Hi to David, Laurence, Alan, Jim & anyone else who helped. The DDS vfo was only producing 50 mV at its output pin & coupled with the very changeable output as I tuned accross its range I decided to have a close look at the DDS chip itself on the pcb, I used a second magnifying glass under the illuminated magnifying bench lamp & I did not see any visual problems with the way the chip was mounted & soldered. So I got out the very fine tipped soldering iron & some very fine solder & carefully went round the chip again. Powered up & BINGO it worked ok. I am now seeing 200 mV or so from the DDS chip & 1.1V p-p output into 50R load. Back to the shack & connected to the G0MRF Tx & what a wonderful sight to see full output from the PA. Thanks for all your help & advice chaps. 73 Gary - G4WGT. From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 92766 invoked from network); 5 Feb 2004 21:44:04 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore01.plus.net with SMTP; 5 Feb 2004 21:44:04 -0000 Received: (qmail 23460 invoked from network); 5 Feb 2004 21:44:23 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 5 Feb 2004 21:44:22 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AorIL-0005yr-Rp for dave@picks.force9.co.uk; Thu, 05 Feb 2004 21:44:21 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AorHI-00021U-Kp for rs_out@blacksheep.org; Thu, 05 Feb 2004 21:43:16 +0000 Received: from [213.40.66.77] (helo=retort.sout.netline.net.uk) by post.thorcom.com with esmtp (Exim 4.14) id 1AorHI-0001zX-3B for rsgb_lf_group@blacksheep.org; Thu, 05 Feb 2004 21:43:16 +0000 Received: from [213.40.208.4] (helo=taylormade) by retort.sout.netline.net.uk with smtp (Exim 4.24) id 1AorGn-0002CX-3c for rsgb_lf_group@blacksheep.org; Thu, 05 Feb 2004 21:42:45 +0000 From: "G4WGT - Gary" To: rsgb_lf_group@blacksheep.org Date: Thu, 5 Feb 2004 21:43:08 -0000 Message-ID: MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Importance: Normal In-reply-to: <000001c3ec22$07716120$fce8c593@rsch15> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: RE: G0MRF 300w Tx & DDS VFO Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Hello Jim & LF, Thanks for the very useful data Jim, I did in fact get a reply from the organiser of the kit/project & he has stated that several builders have experienced the same low output & have diagnosed a faulty modamp, I have doubly checked for the sort of error you suggest & that seems ok, also there is some gain thro' the ERA-1SM. Now that I have some figures to refer to I can have another look at the signal path etc. From memory I don't believe that I am getting anywere near 250mV p-p from the DDS IC before any amplification takes place. I will let you know. Thanks again Gary - G4WGT -----Original Message----- From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org]On Behalf Of James Moritz Sent: 05 February 2004 19:56 To: rsgb_lf_group@blacksheep.org Subject: LF: RE: RE: G0MRF 300w Tx & DDS VFO Dear Gary, LF Group, There should be about 12-13dB of insertion GAIN between the DDS output and the output of the PCB due to the ERA-1SM modamp. Looking at the Analog Devices data sheet, and the schematic component values, the DDS output should be 10mA pk-pk, driving roughly 2 50R loads in parallel, i.e. 250mV pk-pk. The modamp should bring this up to about 1V pk-pk. The DC bias voltage on the modamp output pin should be 3-4V. Is it possible the modamp is in the wrong way round? If it had got turned through 90degrees, the signal would go straight from DDS to output via the 2 ground pins of the modamp. Cheers, Jim Moritz 73 de M0BMU From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 72141 invoked from network); 5 Feb 2004 18:41:20 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore03.plus.net with SMTP; 5 Feb 2004 18:41:20 -0000 Received: (qmail 66641 invoked from network); 5 Feb 2004 18:41:20 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 5 Feb 2004 18:41:19 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AooRD-000HDA-8k for dave@picks.force9.co.uk; Thu, 05 Feb 2004 18:41:19 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AooPj-0008R3-HH for rs_out@blacksheep.org; Thu, 05 Feb 2004 18:39:47 +0000 Received: from [213.40.2.14] (helo=gourd.sout.netline.net.uk) by post.thorcom.com with esmtp (Exim 4.14) id 1AooPi-0008Qt-Ea for rsgb_lf_group@blacksheep.org; Thu, 05 Feb 2004 18:39:46 +0000 Received: from [213.40.203.162] (helo=taylormade) by gourd.sout.netline.net.uk with smtp (Exim 4.24) id 1AooPD-0000pB-CC for rsgb_lf_group@blacksheep.org; Thu, 05 Feb 2004 18:39:15 +0000 From: "G4WGT - Gary" To: rsgb_lf_group@blacksheep.org Date: Thu, 5 Feb 2004 18:39:20 -0000 Message-ID: MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Importance: Normal In-reply-to: <001701c3eaa0$1e8670e0$6507a8c0@Main> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: RE: G0MRF 300w Tx & DDS VFO Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Hi Alan & LF, The frequency calibration of my DDS VFO is so good (with a little hit & miss twiddling)that it is zero beat with BBC Radio 4 on 198 Khz radio transmission & the freq stability is every bit as good, during hours of testing with 198 Khz as a reference I cannot detect any variation. The problem as I have specified in my e-mails is the low output. Last night I checked back to the DDS IC & there are no substantial losses in the signal path, even the insertion loss of the LPF is negligable. Here are the actual levels into 50 ohm load at the output of the DDS VFO. 137 & 274 Khz - 22mV 1.0 Mhz - 50mV 2.0 Mhz - 60mV 5.0 Mhz - 80mV 10.0 Mhz - 150mV 15.0 Mhz - 250mV 20.0 Mhz - 250mV 25.0 Mhz - 150mV 30.0 Mhz - 75mV 35.0 Mhz - 65mV 40.0 Mhz - 50mV I am also sending this info to the organiser of the offer/project from the G-QRP Club asking for his help, advice or a further contact point. By the way, the DDS chip is a Analog Devices AD9850 w/ 120 MHz Clock 73 Gary - G4WGT -----Original Message----- From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org]On Behalf Of Alan Melia Sent: 03 February 2004 21:53 To: rsgb_lf_group@blacksheep.org Subject: LF: Re: RE: Re: Re: G0MRF 300w Tx & DDS VFO Yes Ok Gary, I guessed it was so. I just wondered whther you had a "tight" filter. The signal out of the chip (do be carefull here) should be a logic level ..i.e. 5v p-p I would have thought (??) Cheers de Alan G3NYK From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 84207 invoked from network); 3 Feb 2004 20:02:30 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore01.plus.net with SMTP; 3 Feb 2004 20:02:30 -0000 Received: (qmail 28533 invoked from network); 3 Feb 2004 20:02:27 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 3 Feb 2004 20:02:26 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1Ao6kc-0007Fm-6e for dave@picks.force9.co.uk; Tue, 03 Feb 2004 20:02:26 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Ao6jn-00047u-AK for rs_out@blacksheep.org; Tue, 03 Feb 2004 20:01:35 +0000 Received: from [213.40.66.77] (helo=retort.sout.netline.net.uk) by post.thorcom.com with esmtp (Exim 4.14) id 1Ao6jm-00047c-Dn for rsgb_lf_group@blacksheep.org; Tue, 03 Feb 2004 20:01:34 +0000 Received: from [213.40.200.111] (helo=taylormade) by retort.sout.netline.net.uk with smtp (Exim 4.24) id 1Ao6jH-0005Hp-JG for rsgb_lf_group@blacksheep.org; Tue, 03 Feb 2004 20:01:04 +0000 From: "G4WGT - Gary" To: rsgb_lf_group@blacksheep.org Date: Tue, 3 Feb 2004 20:01:05 -0000 Message-ID: MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 In-reply-to: <000101c3e9da$b9c8e900$6507a8c0@Main> Subject: LF: RE: Re: Re: G0MRF 300w Tx & DDS VFO Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Hi Alan & LF, Thanks for the advise, but I did realise that the input is x2 ie. 274 Khz, it's just that when testing the DDS VFO with the scope on the bench I did the checks at those freq's mentioned. It is still no different at 274 Khz, in fact at its best (15Mhz) it is only producing 300mV P-P & not the expected 1V P-P. The sig comes out of the DDS IC thro' a 2 pole LPF to a buffer amp IC, the sig is even lower at the unbuffered output(before the IC). I will have to remove it from its case to trace back thro' the components. I will keep you posted 73 Gary - G4WGT -----Original Message----- From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org]On Behalf Of Alan Melia Sent: 02 February 2004 22:12 To: rsgb_lf_group@blacksheep.org Subject: LF: Re: Re: G0MRF 300w Tx & DDS VFO Hi Gary Ah you need 274kHz for the feed to the EXT pin it goes to the input of a divide by two to give square wave drive to the PA stage. Still you should be getting more than that out of it. It sounds as though something is not right...50mV is far too low. Is there a LPF on the output?? It may be that there is a component problem there. Cheers de Alan G3NYK From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 56895 invoked from network); 2 Feb 2004 21:23:19 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore04.plus.net with SMTP; 2 Feb 2004 21:23:19 -0000 Received: (qmail 72271 invoked from network); 2 Feb 2004 21:23:19 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 2 Feb 2004 21:23:18 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AnlXK-000IZI-FK for dave@picks.force9.co.uk; Mon, 02 Feb 2004 21:23:18 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AnlVy-0007v9-Tl for rs_out@blacksheep.org; Mon, 02 Feb 2004 21:21:54 +0000 Received: from [213.40.66.76] (helo=pottle.sout.netline.net.uk) by post.thorcom.com with esmtp (Exim 4.14) id 1AnlVy-0007uf-Bs for rsgb_lf_group@blacksheep.org; Mon, 02 Feb 2004 21:21:54 +0000 Received: from [213.40.201.100] (helo=taylormade) by pottle.sout.netline.net.uk with smtp (Exim 4.24) id 1AnlVS-0001gL-UR for rsgb_lf_group@blacksheep.org; Mon, 02 Feb 2004 21:21:23 +0000 From: "G4WGT - Gary" To: "Rsgb_Lf_Group" Date: Mon, 2 Feb 2004 21:21:50 -0000 Message-ID: MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: G0MRF 300w Tx & DDS VFO Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Hi to Alan, David, Laurence & LF, Thanks for your replies & suggestions, I was not able to get any output with any of the arrangements. I then put the DDS VFO on the scope & found that the output at 137 KHz is only 50mV P-P & at 15 MHz is still low at only 300mV then its down to 50mV at its high end of 40 MHz, so its no were near its so called spec of 1V P-P. I will have to investigate further. May be the answer is an intermediate amplifier. 73 Gary - G4WGT From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 36729 invoked from network); 23 Feb 2004 18:22:33 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore03.plus.net with SMTP; 23 Feb 2004 18:22:33 -0000 Received: (qmail 23466 invoked from network); 23 Feb 2004 18:22:33 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 23 Feb 2004 18:22:32 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AvKiu-0005s7-Bz for dave@picks.force9.co.uk; Mon, 23 Feb 2004 18:22:32 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AvKhb-0002Rx-Kf for rs_out@blacksheep.org; Mon, 23 Feb 2004 18:21:11 +0000 Received: from [62.253.164.44] (helo=mta4-svc.business.ntl.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AvKhW-0002Ro-HJ for rsgb_lf_group@blacksheep.org; Mon, 23 Feb 2004 18:21:06 +0000 X-Fake-Domain: l8p8y6 Received: from l8p8y6 ([62.252.229.19]) by mta4-svc.business.ntl.com (InterMail vM.4.01.03.37 201-229-121-137-20020806) with SMTP id <20040223182105.UBPR26893.mta4-svc.business.ntl.com@l8p8y6> for ; Mon, 23 Feb 2004 18:21:05 +0000 X-Bad-Message-ID: no DNS (l8p8y6) Message-ID: <000c01c3f9d4$abe684a0$13e5fc3e@l8p8y6> From: "hamilton mal" To: rsgb_lf_group@blacksheep.org Date: Mon, 23 Feb 2004 06:16:42 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4807.1700 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: test Content-Type: text/html; charset=windows-1252 X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.4 required=5.0 tests=DATE_IN_PAST_12_24,HTML_MESSAGE autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Content-transfer-encoding: 8bit
test
 
From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 568 invoked from network); 19 Feb 2004 09:40:57 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore02.plus.net with SMTP; 19 Feb 2004 09:40:57 -0000 Received: (qmail 14469 invoked from network); 19 Feb 2004 09:40:57 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 19 Feb 2004 09:40:56 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1Atkfw-0003dP-2t for dave@picks.force9.co.uk; Thu, 19 Feb 2004 09:40:56 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Atkf8-0005ei-6u for rs_out@blacksheep.org; Thu, 19 Feb 2004 09:40:06 +0000 Received: from [62.253.164.45] (helo=mta5-svc.business.ntl.com) by post.thorcom.com with esmtp (Exim 4.14) id 1Atkf3-0005eZ-2C for rsgb_lf_group@blacksheep.org; Thu, 19 Feb 2004 09:40:01 +0000 X-Fake-Domain: l8p8y6 Received: from l8p8y6 ([62.252.232.160]) by mta5-svc.business.ntl.com (InterMail vM.4.01.03.37 201-229-121-137-20020806) with SMTP id <20040219094000.YWGA16572.mta5-svc.business.ntl.com@l8p8y6> for ; Thu, 19 Feb 2004 09:40:00 +0000 X-Bad-Message-ID: no DNS (l8p8y6) Message-ID: <002801c3f66a$f876b000$a0e8fc3e@l8p8y6> From: "hamilton mal" To: rsgb_lf_group@blacksheep.org Date: Wed, 18 Feb 2004 22:02:26 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4807.1700 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: unsubscribe_rsgb_lf_group@blacksheep.org Content-Type: text/html; charset=windows-1252 X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.9 required=5.0 tests=DATE_IN_PAST_06_12,HTML_70_80,HTML_MESSAGE,MIME_HTML_MOSTLY autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Content-transfer-encoding: 8bit
 
From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 37127 invoked from network); 22 Feb 2004 17:46:37 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore01.plus.net with SMTP; 22 Feb 2004 17:46:37 -0000 Received: (qmail 60080 invoked from network); 22 Feb 2004 17:49:51 -0000 X-Priority: 3 X-MSMail-Priority: Normal X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 22 Feb 2004 17:49:50 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1Auxji-000FVi-0F for dave@picks.force9.co.uk; Sun, 22 Feb 2004 17:49:50 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Auxj4-0007kt-OU for rs_out@blacksheep.org; Sun, 22 Feb 2004 17:49:10 +0000 Received: from [217.72.192.165] (helo=mailgate5.cinetic.de) by post.thorcom.com with esmtp (Exim 4.14) id 1Auxj3-0007kc-TW for rsgb_lf_group@blacksheep.org; Sun, 22 Feb 2004 17:49:09 +0000 Received: from web.de (fmomail02.dlan.cinetic.de [172.20.1.46]) by mailgate5.cinetic.de (8.11.6p2/8.11.2/SuSE Linux 8.11.0-0.4) with SMTP id i1MHmcQ14270 for rsgb_lf_group@blacksheep.org; Sun, 22 Feb 2004 18:48:39 +0100 Date: Sun, 22 Feb 2004 18:48:39 +0100 Message-ID: <200402221748.i1MHmcQ14270@mailgate5.cinetic.de> MIME-Version: 1.0 From: "Hans-Albrecht Haffa" To: rsgb_lf_group@blacksheep.org Organization: http://freemail.web.de/ Subject: Re: LF: G0MIN or good things come to those who wait, congrats! Content-Type: multipart/mixed; boundary="------------020108090901000702080903" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.6 required=5.0 tests=HTML_20_30,HTML_MESSAGE,MIME_HTML_ONLY autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 This is a multi-part message in MIME format. --------------020108090901000702080903 Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: 8bit -----Ursprüngliche Nachricht (HTML) wurde als Anlage beigefügt.----- Von: rsgb_lf_group@blacksheep.org Gesendet: 21.02.04 01:00:51 An: "Hans-Albrecht Haffa" Betreff: Re: LF: G0MIN or good things come to those who wait. Dear Dave, many of us in Germany are qrv on Sunday morning in aural cw. Activate Your club-Stn an d listn to our weak sigs! Hans-Albrecht DK 8 ND ______________________________________________________________________________
Nachrichten, Musik und Spiele schnell und einfach per Quickstart im
WEB.DE Screensaver - Gratis downloaden: http://screensaver.web.de/?mc=021110 --------------020108090901000702080903 Content-Type: text/html; charset=ISO-8859-1; name="Original_Mail.html" Content-Transfer-Encoding: base64 Content-Disposition: inline; filename="Original_Mail.html" PEhUTUw+DQo8SEVBRD4NCjxUSVRMRT5yc2diX2xmX2dyb3VwQGJsYWNrc2hlZXAub3JnIHNj aHJpZWIgYW0gMjEuMDIuMDQgMDE6MDA6NTE8L1RJVExFPg0KPE1FVEEgSFRUUC1FUVVJVj0i Q29udGVudC1UeXBlIiBDT05URU5UPSJ0ZXh0L2h0bWw7IGNoYXJzZXQ9aXNvLTg4NTktMSI+ DQo8L0hFQUQ+DQo8Qk9EWT4NCi0tLS0tVXJzcHImdXVtbDtuZ2xpY2hlIE5hY2hyaWNodCB3 dXJkZSBhbHMgQXR0YWNobWVudCBhbmdlaCZhdW1sO25ndC4tLS0tLTxiciAvPg0KPHRhYmxl IGJvcmRlcj0iMCIgY2VsbHNwYWNpbmc9IjAiIGNlbGxwYWRkaW5nPSIyIj4NCjx0cj48dGQ+ PGI+Vm9uOjwvYj48L3RkPjx0ZD5yc2diX2xmX2dyb3VwQGJsYWNrc2hlZXAub3JnPC90ZD48 L3RyPg0KPHRyPjx0ZD48Yj5HZXNlbmRldDo8L2I+PC90ZD48dGQ+MjEuMDIuMDQgMDE6MDA6 NTE8L3RkPjwvdHI+DQo8dHI+PHRkPjxiPkFuOjwvYj48L3RkPjx0ZD4mcXVvdDtIYW5zLUFs YnJlY2h0IEhhZmZhJnF1b3Q7ICZsdDtkazhuZEB3ZWIuZGUmZ3Q7PC90ZD48L3RyPg0KPHRy Pjx0ZD48Yj5CZXRyZWZmOjwvYj48L3RkPjx0ZD5SZTogTEY6IEcwTUlOIG9yIGdvb2QgdGhp bmdzIGNvbWUgdG8gdGhvc2Ugd2hvIHdhaXQuPC90ZD48L3RyPg0KPC90YWJsZT4NCgo8Rk9O VCBGQUNFPWFyaWFsLGhlbHZldGljYT48SFRNTD48Rk9OVCAgU0laRT0yIFBUU0laRT0xMCBG QU1JTFk9IlNBTlNTRVJJRiIgRkFDRT0iQXJpYWwiIExBTkc9IjAiPjxCUj4gPEJSPiBTb21l IHRpbWUgYWdvIG15IGxvY2FsIGNsdWIgc3RhdGlvbiBhdCBXaGl0dG9uIG9wZXJhdGVkIDcz IGFuZCAxMzZrSHogb24gYSBGcmlkYXkgbmlnaHQuPEJSPiBUaGlzIHdhcyBhIGdyZWF0IGxl YXJuaW5nIGV4cGVyaWVuY2UgZm9yIHRoZSBjbHViIG1lbWJlcnMgYXMgdXN1YWxseSBzb21l dGhpbmcgZHJhbWF0aWMgd291bGQgaGFwcGVuLiBVbmZvcnR1bmF0ZWx5IHdlIGhhZCB0byBj bG9zZSB0aGUgTEYgb3BlcmF0aW9uIGFzIHNvbWUgZmFzdCBncm93aW5nIGNvbmlmZXJzIGJl Y2FtZSBlbnRhbmdsZWQgd2l0aCB0aGUgYW50ZW5uYS4gQXMgdGhleSBiZWxvbmdlZCB0byB0 aGUgY2h1cmNoIG5leHQgdG8gdGhlIGNvbW11bml0eSBjZW50cmUgdGhlcmUgd2Fzbid0IHZl cnkgbXVjaCB3ZSBjb3VsZCBkby4uLi4uLi4uLkcwTUlOIFFSVCE8QlI+IDxCUj4gNiBtb250 aHMgYWdvIHNvbWUgbmFzdHkgbG9va2luZyBjcmFja3MgYXBwZWFyZWQgaW4gb25lIG9mIHRo ZSBjb21tdW5pdHkgY2VudHJlJ3Mgd2FsbHMgYW5kIGFmdGVyIGFuIGluc3BlY3Rpb24gdGhl IGxvY2FsIGF1dGhvcml0eSBkZWNpZGVkIHRoZSB0cmVlcyB3ZXJlIHJlc3BvbnNpYmxlLjxC Uj4gPEJSPiBFYXJsaWVyIHRoaXMgd2VlayA2IHRyZWVzIHdlcmUgZmVsbGVkIGFuZCB3ZSBu b3cgaGF2ZSBhbiB1bm9ic3RydWN0ZWQgd2lyZSAyNTAgZmVldCBsb25nIHdpdGggdGhlIGZh ciBlbmQgYXR0YWNoZWQgdG8gdGhlIGNodXJjaCA5MGZ0IEFHTC48QlI+IDxCUj4gU28gZnJv bSBuZXh0IHdlZWsgd2UnbGwgYmUgYmFjayBvbiBhIEZyaWRheSBldmVuaW5nIHdpdGggc29t ZXRoaW5nIGJldHdlZW4gNTAwbVcgYW5kIDFXJm5ic3A7IEVSUC4mbmJzcDsmbmJzcDsgWWlw cGVlJm5ic3A7IEl0J3MgYmVlbiB0b28gbG9uZy48QlI+IDxCUj4gNzM8QlI+IDxCUj4gRGF2 aWQmbmJzcDsmbmJzcDsgRzBNUkY8QlI+IDxCUj4gPC9GT05UPg0KPC9CT0RZPjwvSFRNTD4A --------------020108090901000702080903-- From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 53518 invoked from network); 29 Feb 2004 16:49:51 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore04.plus.net with SMTP; 29 Feb 2004 16:49:51 -0000 Received: (qmail 2685 invoked from network); 29 Feb 2004 16:49:51 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 X-MSMail-Priority: Normal Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 29 Feb 2004 16:49:50 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AxU8U-0000TT-Bp for dave@picks.force9.co.uk; Sun, 29 Feb 2004 16:49:50 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AxU7S-0000aD-1Y for rs_out@blacksheep.org; Sun, 29 Feb 2004 16:48:46 +0000 Received: from [194.25.134.84] (helo=mailout09.sul.t-online.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AxU7R-0000a4-5N for rsgb_lf_group@blacksheep.org; Sun, 29 Feb 2004 16:48:45 +0000 X-Fake-Domain: fwd03.aul.t-online.de Received: from fwd03.aul.t-online.de by mailout09.sul.t-online.com with smtp id 1AxU7Q-0002GO-01; Sun, 29 Feb 2004 17:48:44 +0100 X-Fake-Domain: hw Received: from hw (X7dkouZBreJIzhFJQynfbVGPAjk1so6rUkF1vWW8W657EyvuyVdQgk@[217.225.107.115]) by fwd03.sul.t-online.com with esmtp id 1AxU72-1cBZlg0; Sun, 29 Feb 2004 17:48:20 +0100 Date: Sun, 29 Feb 2004 17:48:11 +0100 From: "Hartmut Wolff" X-Suspect-Bulk-Mailer: The Bat! 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(v1.62i) Personal X-Priority: 3 Message-ID: <1701579270.20040229174811@t-online.de> To: rsgb_lf_group@blacksheep.org In-reply-to: <6.0.1.1.2.20040229131137.027eb800@POP3.freeler.nl> References: <6.0.1.1.2.20040229131137.027eb800@POP3.freeler.nl> MIME-Version: 1.0 X-Seen: false X-ID: X7dkouZBreJIzhFJQynfbVGPAjk1so6rUkF1vWW8W657EyvuyVdQgk Subject: LF: VO1NA beaconing Content-Type: multipart/mixed; boundary="------------080102070806090103080207" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 This is a multi-part message in MIME format. --------------080102070806090103080207 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 8bit Reception of VO1NA 0000z-0200z M with some deep fadings and 0200z-0630z was O exc. around 0400z when I missed the last dashes of the "1" too, as you can see in the picture. 73 Hartmut Wolff Location:JO52HO --------------080102070806090103080207 Content-Type: image/jpeg; name="VO1NA-040229-0436.jpg" Content-Transfer-Encoding: base64 Content-Disposition: inline; filename="VO1NA-040229-0436.jpg" /9j/4AAQSkZJRgABAQEBLAEsAAD/2wBDAAMCAgMCAgMDAwMEAwMEBQgFBQQEBQoHBwYIDAoM DAsKCwsNDhIQDQ4RDgsLEBYQERMUFRUVDA8XGBYUGBIUFRT/2wBDAQMEBAUEBQkFBQkUDQsN FBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBT/wAAR CAAQAXsDASIAAhEBAxEB/8QAHwAAAQUBAQEBAQEAAAAAAAAAAAECAwQFBgcICQoL/8QAtRAA AgEDAwIEAwUFBAQAAAF9AQIDAAQRBRIhMUEGE1FhByJxFDKBkaEII0KxwRVS0fAkM2JyggkK FhcYGRolJicoKSo0NTY3ODk6Q0RFRkdISUpTVFVWV1hZWmNkZWZnaGlqc3R1dnd4eXqDhIWG h4iJipKTlJWWl5iZmqKjpKWmp6ipqrKztLW2t7i5usLDxMXGx8jJytLT1NXW19jZ2uHi4+Tl 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Feb 2004 16:24:50 +0100 Date: Wed, 25 Feb 2004 16:24:59 +0100 From: "Hartmut Wolff" X-Suspect-Bulk-Mailer: The Bat! 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(v1.62i) Personal X-Priority: 3 Message-ID: <171700004.20040225162459@t-online.de> To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 X-Seen: false X-ID: bK1MvGZCwehWYkDZtDiZOJiWy2bc+OuzB-SU+1FL8M-DdWDrDZOh08 Subject: LF: VO1NA beaconing Content-Type: multipart/mixed; boundary="------------090103010508040409030100" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 This is a multi-part message in MIME format. --------------090103010508040409030100 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 8bit Good reception of VO1NA last night here in JO52HO. 73 Hartmut Wolff 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3/yT0f8AXPQ//SyeulUk5S8ib6FD+y9P13Qb22tr0yJZpcQ2OmtcnyoWEjsAGkcJGMJuI2kt vYljuJrF0jT7pNVuHmItEms5Gui0gR2RkJ3LIx+9EXRT3OG65Ir1D4Z/8jpL/wBjLef+kM1e d6j974l/Qf8Aoa12KMZpSta3YzT1M+bw7Y3mlWrPpGoOpkLm6sx9oMztFCXJK7mAz8yhuz5y ckArS8Rf8iB4O/3tQ/8ASlqK4pVVB8qii0z/2Q== --------------090103010508040409030100-- From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 41992 invoked from network); 27 Feb 2004 23:20:50 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore03.plus.net with SMTP; 27 Feb 2004 23:20:50 -0000 Received: (qmail 88347 invoked from network); 27 Feb 2004 23:20:49 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 27 Feb 2004 23:20:45 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AwrHg-000MXJ-Qv for dave@picks.force9.co.uk; Fri, 27 Feb 2004 23:20:44 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AwrH7-0004Bb-OV for rs_out@blacksheep.org; Fri, 27 Feb 2004 23:20:09 +0000 Received: from [194.73.73.92] (helo=carbon.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AwrH7-0004BS-6a for rsgb_lf_group@blacksheep.org; Fri, 27 Feb 2004 23:20:09 +0000 Received: from [213.122.28.110] (helo=rogersservices) by carbon.btinternet.com with esmtp (Exim 3.22 #25) id 1AwrH6-0003v4-00 for rsgb_lf_group@blacksheep.org; Fri, 27 Feb 2004 23:20:08 +0000 X-Bad-Message-ID: no DNS (rogersservices) Message-ID: <001301c3fd87$a99173c0$6e1c7ad5@rogersservices> From: "James Moritz" To: rsgb_lf_group@blacksheep.org References: Date: Fri, 27 Feb 2004 23:15:59 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2615.200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: RE: RE: RF Current meter Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Dear Gary, LF Group, Using a 100u-0-100u meter should not be a problem. The phase detector circuit has a full scale output of around +/-250mV, with a fairly low source impedance - just select a series resistor R2 for your meter that will give a full scale reading with 250mV DC applied. Shunting the meter movement should work fine too, but it needs 1 more resistor. The exact calibration will vary somewhat with the forward voltage of the particular diodes used, and the applied power level. The calibration is not critical, however, since you are really only looking for a zero reading anyway. The meter is normally connected between the transmitter output, and the feeder to the loading coil and matching transformer. A reasonably low harmonic content at the TX output is needed for the phase meter to work properly - but with the usual push-pull TX output and 2 section low-pass filter, this should not be a problem. Cheers, Jim Moritz 73 de M0BMU ----- Original Message ----- From: G4WGT - Gary To: Sent: Friday, February 27, 2004 6:29 PM Subject: LF: RE: RE: RF Current meter > Hello Jim & LF Group, > The only query at > the moment is regarding the phase meter (1mA-0-1mA), if I were to use a > 100uA-0-100uA meter with a shunt would this cause any problems with your > design or maybe increasing the value of R2 would be acceptable, (I have this > meter already in my junk box), the 1mA meter for V & A metering is not a > problem. > > Just had another thought, I presume that the device is to be inserted in the > coax feed prior to the antenna matching arrangement at the antenna end. > > 73 > > Gary - G4WGT > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 37630 invoked from network); 26 Feb 2004 15:28:01 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore03.plus.net with SMTP; 26 Feb 2004 15:28:00 -0000 Received: (qmail 88837 invoked from network); 26 Feb 2004 15:28:00 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 26 Feb 2004 15:27:59 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AwNQc-000MyK-TQ for dave@picks.force9.co.uk; Thu, 26 Feb 2004 15:27:59 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AwNPu-0004yM-98 for rs_out@blacksheep.org; Thu, 26 Feb 2004 15:27:14 +0000 Received: from [147.197.200.9] (helo=hestia.herts.ac.uk) by post.thorcom.com with esmtp (Exim 4.14) id 1AwNPt-0004yD-Bv for rsgb_lf_group@blacksheep.org; Thu, 26 Feb 2004 15:27:13 +0000 X-Fake-Domain: gemini Received: from gemini ([147.197.200.44] helo=gemini.herts.ac.uk) by hestia.herts.ac.uk with esmtp (Exim 3.22 #1) id 1AwLin-0000IK-00 for rsgb_lf_group@blacksheep.org; Thu, 26 Feb 2004 13:38:37 +0000 X-No-DNS-For: 147.197.232.252 Received: from [147.197.232.252] (helo=RD40004) by gemini.herts.ac.uk with esmtp (Exim 3.33 #1) id 1AwLin-0006Co-00 for rsgb_lf_group@blacksheep.org; Thu, 26 Feb 2004 13:38:37 +0000 From: "James Moritz" To: rsgb_lf_group@blacksheep.org Date: Thu, 26 Feb 2004 13:38:32 -0000 Organization: University of Hertfordshire X-Bad-Message-ID: no DNS (RD40004) Message-ID: <000001c3fc6d$d667fd80$fce8c593@RD40004> MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.2627 Importance: Normal In-reply-to: <001101c3f91c$82ba8c10$687a37c0@w2ksn> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: RE: feedback requested for new WOLF Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Dear Stewart, LF Group, I'm sending this again - it seems not to have made it through the system the first time! Here are some comments on your new WOLF proposals from my point of view. The LF gear here is basically an RA1792 receiver, plus the TX "Exciter" is an old Racal 9084 signal generator. Both these have PLL synthesisers with internal OCXO references, which give them much better frequency stability than amateur-type rigs; additionally, they can use an external reference, which for last year's PSK tests was a Z3801 GPS receiver/clock, which has both a 1pps output, and a 10MHz OCXO which is continuously calibrated against the GPS signal. For reception, R3 is closest to what I am currently using anyway. For the R1 and R2 options, as others have already said, using an SSB filter for LF receive around here is problematic because of the strong signals that would tend to be present in the passband - I guess these will frequently be 60dB or more over the wanted signal. While a sound card with a halfway decent A/D converter can probably cope with this, as can the RX front end, the RX IF and audio sections were never designed with this in mind. It would be possible to re-design the IF/audio circuits for this purpose, but that would be at least as complicated as providing the external frequency locking for the receiver. An exception to this would be if you were designing a specialised homebrew receiver for this mode - then it could be a quite simple TRF design with a crystal-controlled, fixed BFO frequency. A further problem with R1 concerns using a loop antenna for receive. At my QTH, the optimum orientation of the loop to receive North American signals puts the local Loran station in the loop null, making it difficult to use the Loran signal for synchronisation without degrading the noise rejection of the loop. Using either LORAN or the GPS 1pps to calibrate the receive frequency and the sound card sampling rate would certainly be useful for other purposes too, as well as WOLF reception. On the transmission side, T1 is essentially the method I have used in the past for PSK generation anyway, excepting the use of the GPS 1pps for synchronisation, which was done with hardware. It makes the carrier frequency totally independent of sound card sampling rate error. I have also used method T2 (again without the GPS synchronisation) to generate "Jason" signals. The sound card initial accuracy is not particularly good, so certainly some form of calibration would be needed. T3 sounds like quite a good way of achieving the required results without requiring high quality references in the TX - if the frequency generation for RX used the same sources as TX (e.g. an HF transceiver with a linear transverter to 136k), couldn't this also be used to calibrate the RX frequency? Considering the clock oscillator of a sound card can be quite hard to get at, and may well not be at a particularly convenient frequency, I would think T4 would be no easier than making a frequency source that was locked directly to the 1pps signal. I suspect T5 would run into similar problems as R1 and R2 re bandwidth, unless multiple LF receivers were available. How precise would the frequency of TX and RX need to be? It occurs to me that, even if using precise frequency references, the DDS synthesisers widely used now have a kind of "built-in" frequency error. The tuning increments of the DDS are very small, but are not generally convenient fractions of 1Hz, whereas the tuning display normally does display the frequency as a whole number of Hz, and presumably selects the nearest rounded-off DDS tuning step. This will result in a frequency error which depends on the DDS clock frequency, the phase accumulator length, any PLL multiplying factor, the set frequency, and the way the tuning microcontroller rounds off the frequency display. It would be difficult for the operator to figure out what actual error this would cause at a given frequency. I guess this might come to 10s of millihertz with typical HF receivers. Cheers, Jim Moritz 73 de M0BMU From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 73507 invoked from network); 26 Feb 2004 14:44:46 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore03.plus.net with SMTP; 26 Feb 2004 14:44:46 -0000 Received: (qmail 17080 invoked from network); 26 Feb 2004 14:44:45 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 26 Feb 2004 14:44:38 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AwMkg-0004EM-GO for dave@picks.force9.co.uk; Thu, 26 Feb 2004 14:44:38 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AwMjU-0003eJ-99 for rs_out@blacksheep.org; Thu, 26 Feb 2004 14:43:24 +0000 Received: from [147.197.200.9] (helo=hestia.herts.ac.uk) by post.thorcom.com with esmtp (Exim 4.14) id 1AwMjS-0003e3-MF for rsgb_lf_group@blacksheep.org; Thu, 26 Feb 2004 14:43:22 +0000 X-Fake-Domain: gemini Received: from gemini ([147.197.200.44] helo=gemini.herts.ac.uk) by hestia.herts.ac.uk with esmtp (Exim 3.22 #1) id 1AwKfS-0000qa-01 for rsgb_lf_group@blacksheep.org; Thu, 26 Feb 2004 12:31:06 +0000 X-No-DNS-For: 147.197.232.252 Received: from [147.197.232.252] (helo=RD40004) by gemini.herts.ac.uk with esmtp (Exim 3.33 #1) id 1Avzwr-0004gH-00 for rsgb_lf_group@blacksheep.org; Wed, 25 Feb 2004 14:23:42 +0000 From: "James Moritz" To: rsgb_lf_group@blacksheep.org Date: Wed, 25 Feb 2004 14:23:41 -0000 Organization: University of Hertfordshire X-Bad-Message-ID: no DNS (RD40004) Message-ID: <000001c3fbaa$f819d340$fce8c593@RD40004> MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.2627 Importance: Normal In-reply-to: <001101c3f91c$82ba8c10$687a37c0@w2ksn> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-UH-MailScanner: No Virus detected Subject: LF: RE: feedback requested for new WOLF Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Dear Stewart, LF Group, Here are some comments on your new WOLF proposals from my point of view. The LF gear here is basically an RA1792 receiver, plus the TX "Exciter" is an old Racal 9084 signal generator. Both these have PLL synthesisers with internal OCXO references, which give them much better frequency stability than amateur-type rigs; additionally, they can use an external reference, which for last year's PSK tests was a Z3801 GPS receiver/clock, which has both a 1pps output, and a 10MHz OCXO which is continuously calibrated against the GPS signal. For reception, R3 is closest to what I am currently using anyway. For the R1 and R2 options, as others have already said, using an SSB filter for LF receive around here is problematic because of the strong signals that would tend to be present in the passband - I guess these will frequently be 60dB or more over the wanted signal. While a sound card with a halfway decent A/D converter can probably cope with this, as can the RX front end, the RX IF and audio sections were never designed with this in mind. It would be possible to re-design the IF/audio circuits for this purpose, but that would be at least as complicated as providing the external frequency locking for the receiver. An exception to this would be if you were designing a specialised homebrew receiver for this mode - then it could be a quite simple TRF design with a crystal-controlled, fixed BFO frequency. A further problem with R1 concerns using a loop antenna for receive. At my QTH, the optimum orientation of the loop to receive North American signals puts the local Loran station in the loop null, making it difficult to use the Loran signal for synchronisation without degrading the noise rejection of the loop. Using either LORAN or the GPS 1pps to calibrate the receive frequency and the sound card sampling rate would certainly be useful for other purposes too, as well as WOLF reception. On the transmission side, T1 is essentially the method I have used in the past for PSK generation anyway, excepting the use of the GPS 1pps for synchronisation, which was done with hardware. It makes the carrier frequency totally independent of sound card sampling rate error. I have also used method T2 (again without the GPS synchronisation) to generate "Jason" signals. The sound card initial accuracy is not particularly good, so certainly some form of calibration would be needed. T3 sounds like quite a good way of achieving the required results without requiring high quality references in the TX - if the frequency generation for RX used the same sources as TX (e.g. an HF transceiver with a linear transverter to 136k), couldn't this also be used to calibrate the RX frequency? Considering the clock oscillator of a sound card can be quite hard to get at, and may well not be at a particularly convenient frequency, I would think T4 would be no easier than making a frequency source that was locked directly to the 1pps signal. I suspect T5 would run into similar problems as R1 and R2 re bandwidth, unless multiple LF receivers were available. How precise would the frequency of TX and RX need to be? It occurs to me that, even if using precise frequency references, the DDS synthesisers widely used now have a kind of "built-in" frequency error. The tuning increments of the DDS are very small, but are not generally convenient fractions of 1Hz, whereas the tuning display normally does display the frequency as a whole number of Hz, and presumably selects the nearest rounded-off DDS tuning step. This will result in a frequency error which depends on the DDS clock frequency, the phase accumulator length, any PLL multiplying factor, the set frequency, and the way the tuning microcontroller rounds off the frequency display. It would be difficult for the operator to figure out what actual error this would cause at a given frequency. I guess this might come to 10s of millihertz with typical HF receivers. Cheers, Jim Moritz 73 de M0BMU From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 69857 invoked from network); 24 Feb 2004 12:34:18 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore04.plus.net with SMTP; 24 Feb 2004 12:34:18 -0000 Received: (qmail 41999 invoked from network); 24 Feb 2004 12:34:17 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 24 Feb 2004 12:34:11 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AvblK-000AX8-Ps for dave@picks.force9.co.uk; Tue, 24 Feb 2004 12:34:11 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Avbiq-0005wl-4Z for rs_out@blacksheep.org; Tue, 24 Feb 2004 12:31:36 +0000 Received: from [147.197.200.9] (helo=hestia.herts.ac.uk) by post.thorcom.com with esmtp (Exim 4.14) id 1Avbio-0005wc-Mx for rsgb_lf_group@blacksheep.org; Tue, 24 Feb 2004 12:31:34 +0000 X-Fake-Domain: gemini Received: from gemini ([147.197.200.44] helo=gemini.herts.ac.uk) by hestia.herts.ac.uk with esmtp (Exim 3.22 #1) id 1AvbeC-0002xx-00 for rsgb_lf_group@blacksheep.org; Tue, 24 Feb 2004 12:26:48 +0000 X-No-DNS-For: 147.197.232.252 Received: from [147.197.232.252] (helo=RD40004) by gemini.herts.ac.uk with esmtp (Exim 3.33 #1) id 1AvbeA-0007DP-00 for rsgb_lf_group@blacksheep.org; Tue, 24 Feb 2004 12:26:46 +0000 From: "James Moritz" To: rsgb_lf_group@blacksheep.org Date: Tue, 24 Feb 2004 12:26:46 -0000 Organization: University of Hertfordshire X-Bad-Message-ID: no DNS (RD40004) Message-ID: <000001c3fad1$785a5280$fce8c593@RD40004> MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.2627 Importance: Normal In-reply-to: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-UH-MailScanner: No Virus detected Subject: LF: RE: RF Current meter Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=2.0 required=5.0 tests=DRASTIC_REDUCED autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Dear Gary, LF Group, The RF ammeter circuit in the LF handbook and on K0LR's web page uses a current transformer to develop a voltage of a few volts across a load resistor when the appropriate RF current is flowing in the primary. This voltage is then measured by a simple diode voltmeter to indicate the current. Sounds pretty simple then, but some pitfalls are possible with an RF ammeter of this type... The first thing is that, in order to obtain a reading that is not highly dependent on the ferrite properties or the operating frequency, the inductive reactance of the secondary winding must be much larger than the load resistance. E.g., in the case of the design in the handbook, the load resistor is 470ohms, and at 136k a secondary inductance of several mH would be desirable. To obtain this with the 50turn winding of the handbook design, the specific inductance of the ferrite core used must be a few thousand nH/turn. This is readily achieved by high permeability ferrite cores (relative permeability in the thousands)- HF ferrite materials, or iron dust materials have too low permeability. However, if such a core is split to make a clamp-on meter, it is essential that the two halves meet together very accurately - even a tiny, practically invisible, air gap will result in a drastic reduction in inductance. The winding inductance has a shunting effect, so if the inductance is too low, the meter will read low, decreasing in proportion to frequency below some cut-off frequency (1/(2pi*L/R))- which may be what is happening in Gary's case. The second thing is the response of the voltmeter. The diode voltmeter will be non-linear, reading low at low voltages due to the forward drop of the diode. Increasing the RF load resistor will increase the voltage for a given current, and so improve voltmeter accuracy, but will require higher current transformer secondary inductance . The minimum errors at low frequency will occur with lower values of load resistor. The accuracy of the diode voltmeter will be improved by increasing the DC resistance of the load, so it would be best to use the lowest-current meter movement available. This also means that for Gary to extend the range of his meter upwards, it would be better to reduce the load resistor connected across the current transformer secondary, rather than shunt the meter movement. Shunting the meter movement will increase the output current required from the rectifier, increasing the error due to the voltage drop across the diode, again tending to make the meter read low. ...So, as usual, simple circuits have more to them than at first it seems. A slightly different way of doing the same job is to dispense with the RF load resistor, and feed all the RF current from the current transformer through a bridge rectifier, and measure it with a low-impedance DC ammeter. This makes the voltage across the current transformer secondary as low as possible (the rectifier voltage drop, plus the DC drop across the ammeter), minimising the shunting effect of the winding inductance. Also, the accuracy and linearity is pretty good even at low currents with this circuit, because the current transformer secondary voltage is always just what it needs to be to drive the rectifier. I used this approach for my LF tuning meter design to produce an ammeter with switchable 2A/6A FSD - see http://www.picks.plus.com/software/LFtunemeter.pdf on G3YXM's web pages. The ammeter part is T3, D7-D10 and the associated resistors and meter, and could be used by itself, of course. Cheers, Jim Moritz 73 de M0BMU From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 38813 invoked from network); 19 Feb 2004 10:44:32 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore01.plus.net with SMTP; 19 Feb 2004 10:44:32 -0000 Received: (qmail 69866 invoked from network); 19 Feb 2004 10:47:12 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 19 Feb 2004 10:47:05 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1Atlhx-000HxJ-8Y for dave@picks.force9.co.uk; Thu, 19 Feb 2004 10:47:05 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Atlh9-0007h9-T5 for rs_out@blacksheep.org; Thu, 19 Feb 2004 10:46:15 +0000 Received: from [147.197.200.9] (helo=hestia.herts.ac.uk) by post.thorcom.com with esmtp (Exim 4.14) id 1Atlh8-0007h0-IL for rsgb_lf_group@blacksheep.org; Thu, 19 Feb 2004 10:46:14 +0000 X-Fake-Domain: gemini Received: from gemini ([147.197.200.44] helo=gemini.herts.ac.uk) by hestia.herts.ac.uk with esmtp (Exim 3.22 #1) id 1Atlgh-0002XH-00 for rsgb_lf_group@blacksheep.org; Thu, 19 Feb 2004 10:45:47 +0000 X-No-DNS-For: 147.197.232.252 Received: from [147.197.232.252] (helo=rsch15) by gemini.herts.ac.uk with esmtp (Exim 3.33 #1) id 1Atlgf-0005Kr-00 for rsgb_lf_group@blacksheep.org; Thu, 19 Feb 2004 10:45:45 +0000 From: "James Moritz" To: rsgb_lf_group@blacksheep.org Date: Thu, 19 Feb 2004 10:45:50 -0000 Organization: University of Hertfordshire X-Bad-Message-ID: no DNS (rsch15) Message-ID: <000001c3f6d5$8a90acb0$fce8c593@rsch15> MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.2627 Importance: Normal In-reply-to: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-UH-MailScanner: No Virus detected Subject: LF: RE: RF Current meter Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Dear Gary, LF Group >"When I have looked at designs in amateur radio magazines or internet for a >clip on RF Ammeter the designs seem to be limited to 2 ranges (100mA & 1A >FSD), is there a limit to the range of this type RF Ammeter or can the >ranges be extented to say 5 Amps maybe? is there a calculation to extend >the >range ?" >My LF antenna seems to be showing in excess of one Amp so I need an RF >Ammeter with a greater range than 1A. For ammeters using current transformers, you can increase the FSD by INCREASING the number of turns on the secondary of the transformer (current transformation ratio for a transformer being the inverse of the voltage ratio). So if you want to increase meter FSD by a factor N, just increase the number of turns on the secondary (meter) side by N. This divides the current going through the rectifier and meter by a factor of N also, achieving the desired result. There are a number of second-order effects that may alter the calibration somewhat, but experience shows these are usually pretty small. Shunting a thermocouple meter can be problematic, partly because the thermocouple resistance is usually pretty low to start with, and partly because it changes as the heater element heats up with increasing current. A more reliable way of extending the range up or down is to use a current transformer again. So using a 1:N transformer with the "N" winding connected to the ammeter will increase the FSD by a factor of N. Provided the impedance of the winding inductance is large compared to the meter impedance, and primary and secondary are closely coupled, this is an accurate way of changing the meter range - so don't reject thermocouple meters just because they don't have the range you require! Cheers, Jim Moritz 73 de M0BMU From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 13979 invoked from network); 13 Feb 2004 00:34:45 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore04.plus.net with SMTP; 13 Feb 2004 00:34:45 -0000 Received: (qmail 80520 invoked from network); 13 Feb 2004 00:34:45 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 13 Feb 2004 00:34:44 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1ArRI4-000Kb3-8V for dave@picks.force9.co.uk; Fri, 13 Feb 2004 00:34:44 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ArRHJ-0007tg-RF for rs_out@blacksheep.org; Fri, 13 Feb 2004 00:33:57 +0000 Received: from [194.73.73.111] (helo=gadolinium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1ArRHJ-0007tX-4M for rsgb_lf_group@blacksheep.org; Fri, 13 Feb 2004 00:33:57 +0000 Received: from [81.135.71.30] (helo=rogersservices) by gadolinium.btinternet.com with esmtp (Exim 3.22 #25) id 1ArRHI-0000rI-00 for rsgb_lf_group@blacksheep.org; Fri, 13 Feb 2004 00:33:56 +0000 X-Bad-Message-ID: no DNS (rogersservices) Message-ID: <001f01c3f1c8$81b3bfe0$1e478751@rogersservices> From: "James Moritz" To: rsgb_lf_group@blacksheep.org References: <20040210184134.KTHX20454.tomts35-srv.bellnexxia.net@smtp.bellnexxia.net> <402A6646.4030006@virgin.net> <1ArPAc-19FrkH0@fwd00.sul.t-online.com> Date: Fri, 13 Feb 2004 00:29:55 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2615.200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: Re: LF: Timing GPS Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Dear Uwe, LF Group, I don't think that the bit timing is really a great problem for the low bit-rate modes we are using on LF. I guess that a timing error of 10% of the bit period would result in about 1dB degradation of the recovered signal, which would be relatively small compared to other variations. To stay within 10% of the bit period when using a 10 bit-per-second mode, this would require the clocks at each of the stations to be maintained within 10ms of each other. Assume that the clock, either by adjusting the actual reference frequency, or by calibration in software, can maintain 1ppm precision for periods of a few hours - looking at the narrow-band spectrograms people routinely obtain, this can be done even with ordinary crystal oscillators, provided the temperature does not change too quickly. The time taken for such a clock to drift by 10ms would be 10000 seconds, or nearly 3 hours. So you would only have to check your clock against DCF77 or MSF once every couple of hours at 10 bits/s - at 0.1 bits/sec, once a week would be OK if similar accuracy could be maintained over the longer period. So it should be possible to transmit for quite long periods, and re-calibrate the clock against a standard time broadcast in the receive periods, even when using quite basic clock sources, and so avoid the problem of blocking in the time receiver front end caused by the local transmission. I think the more tricky part would be to get the initial calibration of the clock to within a few ms, but no doubt this can be done by taking into account the path delay to the standard time transmitter, and the delay through the receiver. Again, reducing the bit rate to 10 bit/s would make things easier - it is easy to synchronise 2 clocks to within 1 second. BTW, I have a little MSF-synchronised clock in the shack - this seems to work OK, even when I am transmitting beacon signals... Cheers, Jim Moritz 73 de M0BMU ----- Original Message ----- From: jannsen <0482183881-0001@t-online.de> To: Sent: Thursday, February 12, 2004 10:18 PM Subject: Re: LF: Timing GPS > > there is a problem in synchronizing the PC clock by DCF77 (as with other > standard time signal transmitters): During lf transmittings of your own > station there will be no clocking because the DCF77 receiver will be > overloaded (what is it in english "zugestopft"?). From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 60727 invoked from network); 11 Feb 2004 22:23:12 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore03.plus.net with SMTP; 11 Feb 2004 22:23:12 -0000 Received: (qmail 84962 invoked from network); 11 Feb 2004 22:23:12 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 11 Feb 2004 22:23:10 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1Ar2lB-000Lql-WD for dave@picks.force9.co.uk; Wed, 11 Feb 2004 22:23:10 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Ar2jy-0006Nk-PN for rs_out@blacksheep.org; Wed, 11 Feb 2004 22:21:54 +0000 Received: from [194.73.73.147] (helo=einsteinium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 1Ar2jy-0006Nb-1c for rsgb_lf_group@blacksheep.org; Wed, 11 Feb 2004 22:21:54 +0000 Received: from [213.122.73.133] (helo=rogersservices) by einsteinium.btinternet.com with esmtp (Exim 3.22 #25) id 1Ar2jx-0002dD-00 for rsgb_lf_group@blacksheep.org; Wed, 11 Feb 2004 22:21:53 +0000 X-Bad-Message-ID: no DNS (rogersservices) Message-ID: <000f01c3f0ec$e511c140$85497ad5@rogersservices> From: "James Moritz" To: rsgb_lf_group@blacksheep.org References: <000901c2d298$27c55160$6507a8c0@Main><196171825272.20030212174320@dx.ru> <65175163833.20040211181525@dx.ru> Date: Wed, 11 Feb 2004 22:17:52 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2615.200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: 3rd Rus LF_#1 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 > What best frequencies should be for a beacon/QSO for Europe? > I believe, that the frequency 137.700 was is unsuccessfully chosen > at work from Siberia the last year. > What are your opinions? > > 73! Ed RU6LA ed@dx.ru http://136.73.ru > Dear Ed, LF Group, 137.7k was FB last year from UA9OC - I suppose you could use a frequency near the top edge of the band like the transatlantic beacons, but the lower end of the band around 135.922 is not good here because of the sidebands from SXV Good luck for the expedition - On my globe, Taganrog to Vladivostock looks like about 1/3 of the way round the world! Cheers, Jim Moritz 73 de M0BMU From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 6568 invoked from network); 10 Feb 2004 14:34:58 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore02.plus.net with SMTP; 10 Feb 2004 14:34:58 -0000 Received: (qmail 56860 invoked from network); 10 Feb 2004 14:34:58 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 10 Feb 2004 14:34:56 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AqYyW-000Edz-8F for dave@picks.force9.co.uk; Tue, 10 Feb 2004 14:34:56 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AqYxl-0006Kk-5r for rs_out@blacksheep.org; Tue, 10 Feb 2004 14:34:09 +0000 Received: from [147.197.200.9] (helo=hestia.herts.ac.uk) by post.thorcom.com with esmtp (Exim 4.14) id 1AqYxi-0006KY-DA for rsgb_lf_group@blacksheep.org; Tue, 10 Feb 2004 14:34:06 +0000 X-Fake-Domain: gemini Received: from gemini ([147.197.200.44] helo=gemini.herts.ac.uk) by hestia.herts.ac.uk with esmtp (Exim 3.22 #1) id 1AqYNl-0000Vw-00 for rsgb_lf_group@blacksheep.org; Tue, 10 Feb 2004 13:56:57 +0000 X-No-DNS-For: 147.197.232.252 Received: from [147.197.232.252] (helo=rsch15) by gemini.herts.ac.uk with esmtp (Exim 3.33 #1) id 1AqYNk-00034G-00 for rsgb_lf_group@blacksheep.org; Tue, 10 Feb 2004 13:56:56 +0000 From: "James Moritz" To: rsgb_lf_group@blacksheep.org Date: Tue, 10 Feb 2004 13:56:55 -0000 Organization: University of Hertfordshire X-Bad-Message-ID: no DNS (rsch15) Message-ID: <000001c3efdd$bf1b15a0$fce8c593@rsch15> MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.2627 Importance: Normal In-reply-to: <7D653C9C42F5D411A27C00508BF8803D01A9F413@mail.dstl.gov.uk> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-UH-MailScanner: No Virus detected Subject: RE: LF: Timing GPS Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Dear LF Group, With some 136kHz tests I did with Andy last year, it was apparent that, as well as accurate bit timing, a more or less constant carrier phase difference could be maintained over periods of hours using a GPS-derived carrier frequency. I suppose that the receiver would in principle then only have to determine the initial phase difference due to the propagation path, and no further clock recovery would be required. This might not be true over sky-wave paths with more rapidly varying characteristics though. Also, the indifferent accuracy of sound card sampling clocks would be a limitation if a sound card was to be used for reception. These tests used PSK at 0.1 bits per second - an advantage of a bit rate this low is that the "key clicks" generated by the abrupt phase transitions of the BPSK modulation are not a significant issue, because the phase transitions occur so infrequently. It also makes it a simple matter to manually synchronise the various clock circuits. Cheers, Jim Moritz 73 de M0BMU From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 45603 invoked from network); 5 Feb 2004 21:05:40 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore01.plus.net with SMTP; 5 Feb 2004 21:05:40 -0000 Received: (qmail 35113 invoked from network); 5 Feb 2004 21:05:58 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 5 Feb 2004 21:05:57 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AoqhB-00090a-Ct for dave@picks.force9.co.uk; Thu, 05 Feb 2004 21:05:57 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AoqgD-00005D-5m for rs_out@blacksheep.org; Thu, 05 Feb 2004 21:04:57 +0000 Received: from [147.197.200.9] (helo=hestia.herts.ac.uk) by post.thorcom.com with esmtp (Exim 4.14) id 1AoqgB-000054-V8 for rsgb_lf_group@blacksheep.org; Thu, 05 Feb 2004 21:04:56 +0000 X-Fake-Domain: gemini Received: from gemini ([147.197.200.44] helo=gemini.herts.ac.uk) by hestia.herts.ac.uk with esmtp (Exim 3.22 #1) id 1Aopb9-0005iB-00 for rsgb_lf_group@blacksheep.org; Thu, 05 Feb 2004 19:55:39 +0000 X-No-DNS-For: 147.197.232.252 Received: from [147.197.232.252] (helo=rsch15) by gemini.herts.ac.uk with esmtp (Exim 3.33 #1) id 1Aopb7-0001WA-00 for rsgb_lf_group@blacksheep.org; Thu, 05 Feb 2004 19:55:37 +0000 From: "James Moritz" To: rsgb_lf_group@blacksheep.org Date: Thu, 5 Feb 2004 19:55:39 -0000 Organization: University of Hertfordshire X-Bad-Message-ID: no DNS (rsch15) Message-ID: <000001c3ec22$07716120$fce8c593@rsch15> MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.2627 Importance: Normal In-reply-to: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-UH-MailScanner: No Virus detected Subject: LF: RE: RE: G0MRF 300w Tx & DDS VFO Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Dear Gary, LF Group, >The problem as I have specified in my e-mails is the low output. Last night >I checked back to the DDS IC & there are no substantial losses in the >signal >path, even the insertion loss of the LPF is negligable. Here are the actual >levels into 50 ohm load at the output of the DDS VFO. >137 & 274 Khz - 22mV .... There should be about 12-13dB of insertion GAIN between the DDS output and the output of the PCB due to the ERA-1SM modamp. Looking at the Analog Devices data sheet, and the schematic component values, the DDS output should be 10mA pk-pk, driving roughly 2 50R loads in parallel, i.e. 250mV pk-pk. The modamp should bring this up to about 1V pk-pk. The DC bias voltage on the modamp output pin should be 3-4V. Is it possible the modamp is in the wrong way round? If it had got turned through 90degrees, the signal would go straight from DDS to output via the 2 ground pins of the modamp. Cheers, Jim Moritz 73 de M0BMU From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 83453 invoked from network); 4 Feb 2004 11:26:07 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore01.plus.net with SMTP; 4 Feb 2004 11:26:07 -0000 Received: (qmail 39239 invoked from network); 4 Feb 2004 11:26:10 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 4 Feb 2004 11:26:04 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AoLAR-0009m3-T5 for dave@picks.force9.co.uk; Wed, 04 Feb 2004 11:26:04 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AoL9R-0006w2-Io for rs_out@blacksheep.org; Wed, 04 Feb 2004 11:25:01 +0000 Received: from [147.197.200.9] (helo=hestia.herts.ac.uk) by post.thorcom.com with esmtp (Exim 4.14) id 1AoL9Q-0006vt-Gt for rsgb_lf_group@blacksheep.org; Wed, 04 Feb 2004 11:25:00 +0000 X-Fake-Domain: gemini Received: from gemini ([147.197.200.44] helo=gemini.herts.ac.uk) by hestia.herts.ac.uk with esmtp (Exim 3.22 #1) id 1AoKSw-0000Tw-00 for rsgb_lf_group@blacksheep.org; Wed, 04 Feb 2004 10:41:06 +0000 X-No-DNS-For: 147.197.232.252 Received: from [147.197.232.252] (helo=rsch15) by gemini.herts.ac.uk with esmtp (Exim 3.33 #1) id 1AoKSv-0006lK-00 for rsgb_lf_group@blacksheep.org; Wed, 04 Feb 2004 10:41:05 +0000 From: "James Moritz" To: rsgb_lf_group@blacksheep.org Date: Wed, 4 Feb 2004 10:41:03 -0000 Organization: University of Hertfordshire X-Bad-Message-ID: no DNS (rsch15) Message-ID: <000001c3eb0b$63eb52c0$fce8c593@rsch15> MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.2627 Importance: Normal In-reply-to: <1075840476.402005dcb4653@webmail2.kuleuven.be> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-UH-MailScanner: No Virus detected Subject: RE: LF: RE: Re: Re: G0MRF 300w Tx & DDS VFO Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Dear Rik, Gary, LF Group, >If that is the case there is no need to get a nice sine (through a LPF >and bufferamplifier), most convenient is to pick up the 274kHz signal >somewhere at TLL or CMOS level. >73, Rik ON7YD The output of the DDS is actually the output of a digital to analogue converter, and at 274 kHz the signal on the output pin of the DDS chip will be a pretty good approximation to a sine wave anyway. The function of filtering in the circuit is to remove "alias" frequency components arising due to the sampled-data nature of the output signal. So there isn't actually a logic-level signal in the circuit. You could of course add a squaring circuit giving a logic-level square wave after the DDS output filter. Cheers, Jim Moritz 73 de M0BMU From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 70413 invoked from network); 3 Feb 2004 18:47:20 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore04.plus.net with SMTP; 3 Feb 2004 18:47:20 -0000 Received: (qmail 22141 invoked from network); 3 Feb 2004 18:47:20 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 3 Feb 2004 18:47:13 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1Ao5Zp-0005HH-JY for dave@picks.force9.co.uk; Tue, 03 Feb 2004 18:47:13 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Ao5Yi-0000nr-U3 for rs_out@blacksheep.org; Tue, 03 Feb 2004 18:46:04 +0000 Received: from [147.197.200.9] (helo=hestia.herts.ac.uk) by post.thorcom.com with esmtp (Exim 4.14) id 1Ao5Yh-0000nh-H3 for rsgb_lf_group@blacksheep.org; Tue, 03 Feb 2004 18:46:03 +0000 X-Fake-Domain: gemini Received: from gemini ([147.197.200.44] helo=gemini.herts.ac.uk) by hestia.herts.ac.uk with esmtp (Exim 3.22 #1) id 1Ao5Tw-0003qG-00 for rsgb_lf_group@blacksheep.org; Tue, 03 Feb 2004 18:41:08 +0000 X-No-DNS-For: 147.197.232.252 Received: from [147.197.232.252] (helo=rsch15) by gemini.herts.ac.uk with esmtp (Exim 3.33 #1) id 1Ao5Tv-00050S-00 for rsgb_lf_group@blacksheep.org; Tue, 03 Feb 2004 18:41:07 +0000 From: "James Moritz" To: rsgb_lf_group@blacksheep.org Date: Tue, 3 Feb 2004 18:41:09 -0000 Organization: University of Hertfordshire X-Bad-Message-ID: no DNS (rsch15) Message-ID: <000001c3ea85$4a539f10$fce8c593@rsch15> MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.2627 Importance: Normal In-reply-to: <008801c3ea2f$8a0a5000$062465d5@oemcomputer> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-UH-MailScanner: No Virus detected Subject: LF: RE: Re: Schematics powersupplies 50-100Volt wanted Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Dear Dick, LF Group, > I want to run something with an fixed voltage between 50 to 100 Volt, > depending on what transformer configuration I'm using. One of the nice features of class D or other switching-mode amplifiers is that they work much the same when the supply voltage is reduced, except that the output power is also reduced. This means you can test your PA (or tune up the antenna)with a 12V or less current-limited supply and a few watts output, when there is very little chance of damaging components. Then when you are happy all is working OK, connect a higher supply voltage for QRO operation (however, the driver should always be run from its normal supply voltage to ensure proper switching operation of the output devices). It is quite possible to make voltage- and current regulated supplies for QRO transmitters, but they are usually more complicated and expensive than the TX they are supplying power to. Cheers, Jim Moritz 73 de M0BMU From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 40177 invoked from network); 6 Feb 2004 08:34:27 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore02.plus.net with SMTP; 6 Feb 2004 08:34:27 -0000 Received: (qmail 61358 invoked from network); 6 Feb 2004 08:34:27 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 6 Feb 2004 08:34:25 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1Ap1RR-000FiI-Mr for dave@picks.force9.co.uk; Fri, 06 Feb 2004 08:34:25 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Ap1QW-0000Mv-61 for rs_out@blacksheep.org; Fri, 06 Feb 2004 08:33:28 +0000 Received: from [193.212.240.200] (helo=virus-out-st.online.no) by post.thorcom.com with esmtp (Exim 4.14) id 1Ap1QV-0000Mc-Cl for rsgb_lf_group@blacksheep.org; Fri, 06 Feb 2004 08:33:27 +0000 X-Fake-Domain: tns-fbu-22-208.corp.telenor.no Received: from tns-fbu-22-208.corp.telenor.no ([134.47.162.90] [134.47.162.90]) by scan.telenor.net with ESMTP for rsgb_lf_group@blacksheep.org; Fri, 6 Feb 2004 09:32:44 +0100 X-Fake-Domain: tns-fbu-22-212.corp.telenor.no Received: from tns-fbu-22-212.corp.telenor.no ([134.47.162.91]) by tns-fbu-22-208.corp.telenor.no with Microsoft SMTPSVC(5.0.2195.5329); Fri, 6 Feb 2004 09:32:44 +0100 X-Fake-Domain: TNS-FBU-2E-003.corp.telenor.no Received: from TNS-FBU-2E-003.corp.telenor.no ([134.47.164.201]) by tns-fbu-22-212.corp.telenor.no with Microsoft SMTPSVC(5.0.2195.5329); Fri, 6 Feb 2004 09:32:44 +0100 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 content-class: urn:content-classes:message Date: Fri, 6 Feb 2004 09:32:43 +0100 X-Bad-Message-ID: no DNS (TNS-FBU-2E-003.corp.telenor.no) Message-ID: <2D280BB697C7EE4C979C5C89925418EF0181DCB9@TNS-FBU-2E-003.corp.telenor.no> Thread-Topic: Re: Manual SPM-3 Thread-Index: AcPrKnLIFImdA8wJSXGlW69xrx08CgBYPpkA From: jan-martin.noding@telenor.com To: rsgb_lf_group@blacksheep.org X-OriginalArrivalTime: 06 Feb 2004 08:32:44.0377 (UTC) FILETIME=[CAD06490:01C3EC8B] MIME-Version: 1.0 Subject: LF: RE: Re: Manual SPM-3 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.3 required=5.0 tests=NO_REAL_NAME autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hi Would be pleased if I could give a link on my site because I have not space for all the pages, and pleased if I don't need to scan it. But I would like to describe some notes about SPM-3 and other Pegelmesser's 73 Jan-Martin LA8AK --- -----Original Message----- From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org]On Behalf Of Alan Melia Sent: 4. februar 2004 15:20 To: rsgb_lf_group@blacksheep.org Subject: LF: Re: Manual SPM-3 Hi Dick, I have the W&G SPM-3 manual as four .PDF files which may be more convenient Cheers de Alan G3NYK alan.melia@btinternet.com ----- Original Message ----- From: "Dick Rollema" To: "LF-Group" Cc: Sent: 04 February 2004 13:26 Subject: LF: Manual SPM-3 > To All from PA0SE > > PA3DUK of The Hague has obtained a Wandel & Goltermann selective level > meter type SPM-3. But he has no manual for it. > Anyone knows where to find one? > > 73, Dick, PA0SE From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 78954 invoked from network); 26 Feb 2004 17:02:35 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore04.plus.net with SMTP; 26 Feb 2004 17:02:35 -0000 Received: (qmail 7862 invoked from network); 26 Feb 2004 17:02:35 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 X-Priority: 3 X-MSMail-Priority: Normal Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 26 Feb 2004 17:02:33 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AwOu9-0001oN-Nq for dave@picks.force9.co.uk; Thu, 26 Feb 2004 17:02:33 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AwOt9-0008Ay-0F for rs_out@blacksheep.org; Thu, 26 Feb 2004 17:01:31 +0000 Received: from [194.25.134.19] (helo=mailout06.sul.t-online.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AwOt8-0008Ap-59 for rsgb_lf_group@blacksheep.org; Thu, 26 Feb 2004 17:01:30 +0000 X-Fake-Domain: fwd08.aul.t-online.de Received: from fwd08.aul.t-online.de by mailout06.sul.t-online.com with smtp id 1AwOt7-0005JW-03; Thu, 26 Feb 2004 18:01:29 +0100 X-Fake-Domain: (Z2cuoMZbZesoIwi+DjffebixLu1zJ3hTIwCBH-6Jmi+zTinRh4Djkw@[62.158.12.198]) Received: from (Z2cuoMZbZesoIwi+DjffebixLu1zJ3hTIwCBH-6Jmi+zTinRh4Djkw@[62.158.12.198]) by fwd08.sul.t-online.com with smtp id 1AwOsW-1jmLUu0; Thu, 26 Feb 2004 18:00:52 +0100 From: "jannsen" <0482183881-0001@t-online.de> To: rsgb_lf_group@blacksheep.org References: <002301c3fc7a$fa445de0$6507a8c0@Main> X-Mailer: T-Online eMail 2.34 MIME-Version: 1.0 Date: Thu, 26 Feb 2004 18:00:52 +0100 Message-ID: <1AwOsW-1jmLUu0@fwd08.sul.t-online.com> X-Seen: false X-ID: Z2cuoMZbZesoIwi+DjffebixLu1zJ3hTIwCBH-6Jmi+zTinRh4Djkw Subject: Re: LF: Propagation Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: ** X-Spam-Status: No, hits=2.4 required=5.0 tests=FROM_ENDS_IN_NUMS,FROM_STARTS_WITH_NUMS autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Alan Melia schrieb: > Hi all, Long distance propagation seems to be good on the night-time paths > ...see Joe VO1NA's report from Sam RN6NB at 6600km. Steve W3EEE shows > > reasonable received levels of DCF39 but not "the best". > > We have had a period of about 10days since the last minor storm (Kp=5) which > occurred 4 days after a Kp=6 event. It would generally take a few more days > for conditions to really settle in to the "good" category. Unfortunately a > sun-spot appeared, grew rapidly and ejected a Class X1.1 X-ray flare this > morning (26th Feb). The spot is Earth-facing so the CME will collide with > the Earth in about 2 days time, say Saturday 28th. It will take a couple of > days for the effects to show on LF radio propagation, so we can expect a > deterioration in long-distance night-time conditions by about the 1st March. > As a consolation shorter distance daytime paths should improve for at least > two days, with up to 6dB (maybe as high as 10dB) enhancement timed when the > sun is at its zenith (mid-day) at the mid-path point. > > Good Hunting > Cheers de Alan G3NYK > alan.melia@btinternet.com > > > Hi Alan and group, the propagation for 6600km distance was good, but for 4300km, the distance between Joes and my QTH, was not. all nights I have had VO1NA on the screen. last night: nothing. regards Uwe/dj8wx From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 36448 invoked from network); 26 Feb 2004 11:54:51 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore03.plus.net with SMTP; 26 Feb 2004 11:54:51 -0000 Received: (qmail 70442 invoked from network); 26 Feb 2004 11:54:50 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 X-Priority: 3 X-MSMail-Priority: Normal Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 26 Feb 2004 11:54:46 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AwK6H-000HjT-VP for dave@picks.force9.co.uk; Thu, 26 Feb 2004 11:54:46 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AwK4Y-0006ik-SP for rs_out@blacksheep.org; Thu, 26 Feb 2004 11:52:58 +0000 Received: from [194.25.134.80] (helo=mailout01.sul.t-online.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AwK4Y-0006ib-4p for rsgb_lf_group@blacksheep.org; Thu, 26 Feb 2004 11:52:58 +0000 X-Fake-Domain: fwd05.aul.t-online.de Received: from fwd05.aul.t-online.de by mailout01.sul.t-online.com with smtp id 1AwJrv-0005Wr-07; Thu, 26 Feb 2004 12:39:55 +0100 X-Fake-Domain: (TJ5ChEZHgeE9AzXp6GUCvrm3sDEjlqQV6fSGvJsMrYBiqz+Ubz9zoJ@[62.155.252.245]) Received: from (TJ5ChEZHgeE9AzXp6GUCvrm3sDEjlqQV6fSGvJsMrYBiqz+Ubz9zoJ@[62.155.252.245]) by fwd05.sul.t-online.com with smtp id 1AwJrj-1pyDlw0; Thu, 26 Feb 2004 12:39:43 +0100 From: "jannsen" <0482183881-0001@t-online.de> To: rsgb_lf_group@blacksheep.org References: <1926266703.20040225212633@73.ru> X-Mailer: T-Online eMail 2.34 MIME-Version: 1.0 Date: Thu, 26 Feb 2004 12:39:43 +0100 Message-ID: <1AwJrj-1pyDlw0@fwd05.sul.t-online.com> X-Seen: false X-ID: TJ5ChEZHgeE9AzXp6GUCvrm3sDEjlqQV6fSGvJsMrYBiqz+Ubz9zoJ Subject: Re: LF: VO1NA beaconing Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: ** X-Spam-Status: No, hits=2.4 required=5.0 tests=FROM_ENDS_IN_NUMS,FROM_STARTS_WITH_NUMS autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 rn6bn schrieb: > Hello rsgb, > > I think this VO1NA. > 25/02/2004 > > -- > Best regards, > Sam, rn6bn mailto:rn6bn@73.ru Hi Sam. 1. yes obviously it is! congratulations. from your QTH KN95oa the distance to Joe/VO1NA is 6600km. 2. tks for the last private mail, Sam. vy 73 Uwe/dj8wx From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 70428 invoked from network); 18 Feb 2004 14:04:44 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore04.plus.net with SMTP; 18 Feb 2004 14:04:44 -0000 Received: (qmail 76550 invoked from network); 18 Feb 2004 14:04:43 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 X-Priority: 3 X-MSMail-Priority: Normal Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 18 Feb 2004 14:04:41 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AtSJd-000Jcd-Jm for dave@picks.force9.co.uk; Wed, 18 Feb 2004 14:04:41 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AtSID-0004Nj-Sl for rs_out@blacksheep.org; Wed, 18 Feb 2004 14:03:13 +0000 Received: from [194.25.134.83] (helo=mailout07.sul.t-online.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AtSID-0004Na-A9 for rsgb_lf_group@blacksheep.org; Wed, 18 Feb 2004 14:03:13 +0000 X-Fake-Domain: fwd01.aul.t-online.de Received: from fwd01.aul.t-online.de by mailout07.sul.t-online.com with smtp id 1AtSIC-00032L-01; Wed, 18 Feb 2004 15:03:12 +0100 X-Fake-Domain: (r3b800ZfZeSpbI88lJ6d-mBrKm-lLjDgUMFp3ziIilZ6aDOGd4dc8y@[62.224.50.114]) Received: from (r3b800ZfZeSpbI88lJ6d-mBrKm-lLjDgUMFp3ziIilZ6aDOGd4dc8y@[62.224.50.114]) by fwd01.sul.t-online.com with smtp id 1AtSHt-0jd19s0; Wed, 18 Feb 2004 15:02:53 +0100 From: "jannsen" <0482183881-0001@t-online.de> To: rsgb_lf_group@blacksheep.org References: <7D653C9C42F5D411A27C00508BF8803D01A9F415@mail.dstl.gov.uk> <4031FB0A.8040706@usa.net> X-Mailer: T-Online eMail 2.34 MIME-Version: 1.0 Date: Wed, 18 Feb 2004 15:02:53 +0100 Message-ID: <1AtSHt-0jd19s0@fwd01.sul.t-online.com> X-Seen: false X-ID: r3b800ZfZeSpbI88lJ6d-mBrKm-lLjDgUMFp3ziIilZ6aDOGd4dc8y Subject: Re: LF: Re:: Timing GPS Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Level: ** X-Spam-Status: No, hits=2.4 required=5.0 tests=FROM_ENDS_IN_NUMS,FROM_STARTS_WITH_NUMS autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Alberto di Bene schrieb: > Hello group, > > Andy G4JNT has written some notes about his GPSDO (GPS DIsciplined > Oscillator) project. > I have been quite happy to host them on my Web site. You can find them > here : > http://gpsdo.i2phd.com > > 73 Alberto I2PHD > > Hi Alberto, hi Andy, tks for the effort. Andy writes in the PDF: "........ Initially I was sceptical thinking it probably only consisted of 10000 pulses per second - which could have been no better than the 1 PPS signal itself in the short term. ......." some astronomical observatories use the GPS rcvr GSU-25. It´s 10kHz output is obviously pulsed according to the following specification: Reception: 12channel parallel Reception Frequency: 1575.42MHz ħ 1MHz (C/A code) Measurement accuracy: 1Sec ħ 300nS (typ) Supply power Voltage: +5V ħ 5%, ripples under 50mV Current consumption: Under 200mA Operation Temperature range: -300C~+700C In/Output Communication mode: Serial transfer with start/stop Time Mark Pulse output: 1PPS/10KHz regards Uwe/dj8wx From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 40586 invoked from network); 12 Feb 2004 22:19:46 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore02.plus.net with SMTP; 12 Feb 2004 22:19:46 -0000 Received: (qmail 67967 invoked from network); 12 Feb 2004 22:19:46 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 X-Priority: 3 X-MSMail-Priority: Normal Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 12 Feb 2004 22:19:45 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1ArPBR-000HRm-8k for dave@picks.force9.co.uk; Thu, 12 Feb 2004 22:19:45 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ArPAl-0003CF-Sc for rs_out@blacksheep.org; Thu, 12 Feb 2004 22:19:03 +0000 Received: from [194.25.134.83] (helo=mailout07.sul.t-online.com) by post.thorcom.com with esmtp (Exim 4.14) id 1ArPAl-0003Bu-1s for rsgb_lf_group@blacksheep.org; Thu, 12 Feb 2004 22:19:03 +0000 X-Fake-Domain: fwd00.aul.t-online.de Received: from fwd00.aul.t-online.de by mailout07.sul.t-online.com with smtp id 1ArPAk-0000Df-02; Thu, 12 Feb 2004 23:19:02 +0100 X-Fake-Domain: (XpsWIYZXQeakD2oH+P7tRRmcIU2KDQQis8lxUT5kuCtofYoXNMPY8L@[62.224.53.83]) Received: from (XpsWIYZXQeakD2oH+P7tRRmcIU2KDQQis8lxUT5kuCtofYoXNMPY8L@[62.224.53.83]) by fwd00.sul.t-online.com with smtp id 1ArPAc-19FrkH0; Thu, 12 Feb 2004 23:18:54 +0100 From: "jannsen" <0482183881-0001@t-online.de> To: rsgb_lf_group@blacksheep.org References: <20040210184134.KTHX20454.tomts35-srv.bellnexxia.net@smtp.bellnexxia.net> <402A6646.4030006@virgin.net> X-Mailer: T-Online eMail 2.34 MIME-Version: 1.0 Date: Thu, 12 Feb 2004 23:18:54 +0100 Message-ID: <1ArPAc-19FrkH0@fwd00.sul.t-online.com> X-Seen: false X-ID: XpsWIYZXQeakD2oH+P7tRRmcIU2KDQQis8lxUT5kuCtofYoXNMPY8L Subject: Re: LF: Timing GPS Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Level: ** X-Spam-Status: No, hits=2.4 required=5.0 tests=FROM_ENDS_IN_NUMS,FROM_STARTS_WITH_NUMS autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Stewart Bryant schrieb: > If GPS is not an option, then NTP (clock timing via the Internet) > might be an alternative. > > There is some info on accuracy at > > http://www.ntp.org/ntpfaq/NTP-s-algo.htm#AEN2361 > > - Stewart G3YSX > Hi Stewart es All, I do some PC clock synchronizations via internet using the program "Time Watch", downloaded from http://www.blue-series.de. the NTP server transmitting the synchronization signals must be in your vicinity. it is not usefull telling us that their timer is <1uS accurate (in my case dirived from GPS receivings) if there is a long wire to the server. it`s something else if you would know the phase fault on the line and can correct it in some way. reading the PC clock in mSec from the window "Time Decoder" of SpecLab of one PC with the clock (motherboard and sound card) permanent synchronized by the standard time signal station DCF77 and at the same time reading the mSec from the screen of the other PC just clocking by the signals from the internet server, I believe I see a difference, DCF77 in front. be that as it may, we should reach an agreement about what kind of synchronization we will make use of. there is a problem in synchronizing the PC clock by DCF77 (as with other standard time signal transmitters): During lf transmittings of your own station there will be no clocking because the DCF77 receiver will be overloaded (what is it in english "zugestopft"?). if the program "Africam" will come into fashion agn (I played with it and the SD KIT abt 20 years ago) the case is`nt as critical as it sounds: if I rember right there are two helpfull knobs, Autotrack and Aütofrequency. BTW. if my station transmits all night long my neighbour runs into trouble with his employer: the radio alarm synchronized by DCF77 doesnt wake him (the neighbour) up. regards Uwe/dj8wx From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 63275 invoked from network); 12 Feb 2004 22:18:10 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore01.plus.net with SMTP; 12 Feb 2004 22:18:10 -0000 Received: (qmail 31898 invoked from network); 12 Feb 2004 22:19:42 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 X-Priority: 3 X-MSMail-Priority: Normal Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 12 Feb 2004 22:19:41 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1ArPBN-00089j-6s for dave@picks.force9.co.uk; Thu, 12 Feb 2004 22:19:41 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ArPAl-0003CB-QZ for rs_out@blacksheep.org; Thu, 12 Feb 2004 22:19:03 +0000 Received: from [194.25.134.83] (helo=mailout07.sul.t-online.com) by post.thorcom.com with esmtp (Exim 4.14) id 1ArPAl-0003Bt-1i for rsgb_lf_group@blacksheep.org; Thu, 12 Feb 2004 22:19:03 +0000 X-Fake-Domain: fwd00.aul.t-online.de Received: from fwd00.aul.t-online.de by mailout07.sul.t-online.com with smtp id 1ArPAk-0000Df-01; Thu, 12 Feb 2004 23:19:02 +0100 X-Fake-Domain: (XpsWIYZXQeakD2oH+P7tRRmcIU2KDQQis8lxUT5kuCtofYoXNMPY8L@[62.224.53.83]) Received: from (XpsWIYZXQeakD2oH+P7tRRmcIU2KDQQis8lxUT5kuCtofYoXNMPY8L@[62.224.53.83]) by fwd00.sul.t-online.com with smtp id 1ArPAb-19FrkG0; Thu, 12 Feb 2004 23:18:53 +0100 From: "jannsen" <0482183881-0001@t-online.de> To: rsgb_lf_group@blacksheep.org References: <20040210184134.KTHX20454.tomts35-srv.bellnexxia.net@smtp.bellnexxia.net> <402A6646.4030006@virgin.net> <002701c3f0c8$5e21ba60$3401a8c0@comrex.com> X-Mailer: T-Online eMail 2.34 MIME-Version: 1.0 Date: Thu, 12 Feb 2004 23:18:53 +0100 Message-ID: <1ArPAb-19FrkG0@fwd00.sul.t-online.com> X-Seen: false X-ID: XpsWIYZXQeakD2oH+P7tRRmcIU2KDQQis8lxUT5kuCtofYoXNMPY8L Subject: Re: LF: Timing GPS Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Level: ** X-Spam-Status: No, hits=2.4 required=5.0 tests=FROM_ENDS_IN_NUMS,FROM_STARTS_WITH_NUMS autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 John Andrews schrieb: > For those interested in GPS-locked BPSK, you might want to keep an eye on > the Lowfer QTH.net reflector. In the next week or so, 4-5 of us will have > transmit and receive capability using VE2IQ's Africam program. I expect > considerable message traffic on the subject. > > John Andrews, W1TAG Hi John, would you be so kind as to make sporadically QSP for us to this reflector? tks in advnce regards Uwe/dj8wx From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 62746 invoked from network); 27 Feb 2004 14:01:49 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore04.plus.net with SMTP; 27 Feb 2004 14:01:49 -0000 Received: (qmail 92195 invoked from network); 27 Feb 2004 14:01:49 -0000 Content-Transfer-Encoding: 8bit X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 X-Priority: 3 X-MSMail-Priority: Normal Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 27 Feb 2004 14:01:46 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AwiYk-000Nes-8k for dave@picks.force9.co.uk; Fri, 27 Feb 2004 14:01:46 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AwiXs-0004NS-LD for rs_out@blacksheep.org; Fri, 27 Feb 2004 14:00:52 +0000 Received: from [195.101.39.227] (helo=GWOUT.thalesgroup.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AwiXr-0004NJ-Qc for rsgb_lf_group@blacksheep.org; Fri, 27 Feb 2004 14:00:51 +0000 X-Fake-Domain: thalescan.corp.thales Received: from thalescan.corp.thales (200.3.2.3) by GWOUT.thalesgroup.com (NPlex 6.5.026) id 403DDD740001B2A6 for rsgb_lf_group@blacksheep.org; Fri, 27 Feb 2004 15:00:20 +0100 X-Fake-Domain: tccplex.tcc.thomson-csf.com Received: from tccplex.tcc.thomson-csf.com ([200.3.1.11]) by thalescan with InterScan Messaging Security Suite; Fri, 27 Feb 2004 15:00:00 +0100 X-Fake-Domain: NODALNET.clb.tcfr.thales Received: from NODALNET.clb.tcfr.thales (146.11.5.4) by tccplex.tcc.thomson-csf.com (NPlex 6.5.026) id 402CA1AE0004A626 for rsgb_lf_group@blacksheep.org; Fri, 27 Feb 2004 15:01:04 +0100 Received: by NODALNET.clb.tcfr.thales with Internet Mail Service (5.5.2653.19) id ; Fri, 27 Feb 2004 15:00:00 +0100 X-Bad-Message-ID: no DNS (argos.clb.tcfr.thales) Message-ID: <8840D182F8BB7540B173D2B1FA0CA9AB018AE3C5@argos.clb.tcfr.thales> From: Jean-Louis.RAULT@fr.thalesgroup.com To: rsgb_lf_group@blacksheep.org Date: Fri, 27 Feb 2004 14:59:59 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Subject: RE: LF: Propagation Content-Type: text/plain; charset=iso-8859-1; format=flowed X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.3 required=5.0 tests=NO_REAL_NAME autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 > Hi Alan and group, > the propagation for 6600km distance was good, but for 4300km, > the distance > between Joes and my QTH, was not. all nights I have had VO1NA > on the screen. > last night: nothing. > > regards > Uwe/dj8wx And now, ladies and gentlemen, a newbie question: could this be explained by a propagation phenomenon (silent zone between 2 hops ??) or rather by an important noise floor at Uwe QTH ? (Another newbie question: please what is (again !) the xmitting frequency of VO1NA ?) 73 de Jean-Louis F6AGR Loc JN18DQ From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 59391 invoked from network); 13 Feb 2004 12:06:55 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore03.plus.net with SMTP; 13 Feb 2004 12:06:55 -0000 Received: (qmail 51755 invoked from network); 13 Feb 2004 12:06:55 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 X-Priority: 3 X-MSMail-Priority: Normal Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 13 Feb 2004 12:06:54 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1Arc5u-000DDt-1v for dave@picks.force9.co.uk; Fri, 13 Feb 2004 12:06:54 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Arc5P-0003j0-BD for rs_out@blacksheep.org; Fri, 13 Feb 2004 12:06:23 +0000 Received: from [195.101.39.227] (helo=GWOUT.thalesgroup.com) by post.thorcom.com with esmtp (Exim 4.14) id 1Arc5O-0003ic-SI for rsgb_lf_group@blacksheep.org; Fri, 13 Feb 2004 12:06:22 +0000 X-Fake-Domain: thalescan.corp.thales Received: from thalescan.corp.thales (200.3.2.3) by GWOUT.thalesgroup.com (NPlex 6.5.026) id 402BB69900010D1F for rsgb_lf_group@blacksheep.org; Fri, 13 Feb 2004 13:06:30 +0100 X-Fake-Domain: tccplex.tcc.thomson-csf.com Received: from tccplex.tcc.thomson-csf.com ([200.3.1.11]) by thalescan with InterScan Messaging Security Suite; Fri, 13 Feb 2004 13:05:32 +0100 X-Fake-Domain: NODALNET.clb.tcfr.thales Received: from NODALNET.clb.tcfr.thales (146.11.5.4) by tccplex.tcc.thomson-csf.com (NPlex 6.5.026) id 402CA1AE00000FE6 for rsgb_lf_group@blacksheep.org; Fri, 13 Feb 2004 13:06:29 +0100 Received: by NODALNET.clb.tcfr.thales with Internet Mail Service (5.5.2653.19) id ; Fri, 13 Feb 2004 13:05:32 +0100 X-Bad-Message-ID: no DNS (argos.clb.tcfr.thales) Message-ID: <8840D182F8BB7540B173D2B1FA0CA9AB018AE33B@argos.clb.tcfr.thales> From: Jean-Louis.RAULT@fr.thalesgroup.com To: rsgb_lf_group@blacksheep.org Date: Fri, 13 Feb 2004 13:06:10 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Subject: RE: LF: Timing GPS Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.3 required=5.0 tests=NO_REAL_NAME autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Neither do I, Alan ... Up to now, the only way I found to synchronise the software and the hardware clocks is to switch the computer off and on again. Any Windows guru on this mailing list ? 73 Jean-Louis F6AGR > -----Message d'origine----- > De : Alan Melia [mailto:Alan.Melia@btinternet.com] > Envoyé : vendredi 13 février 2004 12:25 > À : rsgb_lf_group@blacksheep.org > Objet : Re: LF: Timing GPS > > > Hello again Jean-Louis. I had thought about that ( software > clock drift > dependent on cpu usage) and wondered whether it would be > possible to force > the software clock to sync with the hardware clock at regular > intervals > (say 30 mins) using the scheduler. This could possibly be run > behind the > capture program if not incorporated into it ?? I am not sufficiently > knowledgable about windows to now how to do it. > > Cheers de Alan G3NYK > alan.melia@btinternet.com > > ----- Original Message ----- > From: > To: > Sent: 13 February 2004 08:59 > Subject: RE: LF: Timing GPS > > > Hi all > > Please keep in mind that Windows operating systems are very poor "time > keepers". > They drift very quickly, depending on the programs you are running. > A drift of one second up to one minute per day is not > uncommon (specially > with "data crunchers" softwares like real time FFT computing)! > I'm not talking about the drift of the PC hardware clock > itself which is > quite good (the time base xtal oscillator drifts around 2 s > per month on my > own computer), but from the Windows time management. > It seems that the time management on the Windows multitask OS > has a very low > priority ... > I verified this on Windows 95, Windows 98 and Windows Me. > Any other experience with other operating systems ? > > 73 de Jean-Louis F6AGR > > > > > > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 88781 invoked from network); 13 Feb 2004 12:03:14 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore04.plus.net with SMTP; 13 Feb 2004 12:03:14 -0000 Received: (qmail 31035 invoked from network); 13 Feb 2004 12:03:13 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 X-Priority: 3 X-MSMail-Priority: Normal Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 13 Feb 2004 12:03:12 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1Arc2K-0007v9-8r for dave@picks.force9.co.uk; Fri, 13 Feb 2004 12:03:12 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Arc1a-0003eB-ST for rs_out@blacksheep.org; Fri, 13 Feb 2004 12:02:26 +0000 Received: from [195.101.39.227] (helo=GWOUT.thalesgroup.com) by post.thorcom.com with esmtp (Exim 4.14) id 1Arc1a-0003dK-DV for rsgb_lf_group@blacksheep.org; Fri, 13 Feb 2004 12:02:26 +0000 X-Fake-Domain: thalescan.corp.thales Received: from thalescan.corp.thales (200.3.2.3) by GWOUT.thalesgroup.com (NPlex 6.5.026) id 402BB69900010BA5 for rsgb_lf_group@blacksheep.org; Fri, 13 Feb 2004 13:02:34 +0100 X-Fake-Domain: tccplex.tcc.thomson-csf.com Received: from tccplex.tcc.thomson-csf.com ([200.3.1.11]) by thalescan with InterScan Messaging Security Suite; Fri, 13 Feb 2004 13:01:36 +0100 X-Fake-Domain: NODALNET.clb.tcfr.thales Received: from NODALNET.clb.tcfr.thales (146.11.5.4) by tccplex.tcc.thomson-csf.com (NPlex 6.5.026) id 402CA1AE00000FA1 for rsgb_lf_group@blacksheep.org; Fri, 13 Feb 2004 13:02:33 +0100 Received: by NODALNET.clb.tcfr.thales with Internet Mail Service (5.5.2653.19) id ; Fri, 13 Feb 2004 13:01:36 +0100 X-Bad-Message-ID: no DNS (argos.clb.tcfr.thales) Message-ID: <8840D182F8BB7540B173D2B1FA0CA9AB018AE33A@argos.clb.tcfr.thales> From: Jean-Louis.RAULT@fr.thalesgroup.com To: rsgb_lf_group@blacksheep.org Date: Fri, 13 Feb 2004 13:02:14 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Subject: RE: LF: Timing GPS Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.3 required=5.0 tests=NO_REAL_NAME autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 > -----Message d'origine----- > De : Alan Melia [mailto:Alan.Melia@btinternet.com] > Envoyé : vendredi 13 février 2004 12:25 > À : rsgb_lf_group@blacksheep.org > Objet : Re: LF: Timing GPS > > > Hello again Jean-Louis. I had thought about that ( software > clock drift > dependent on cpu usage) and wondered whether it would be > possible to force > the software clock to sync with the hardware clock at regular > intervals > (say 30 mins) using the scheduler. This could possibly be run > behind the > capture program if not incorporated into it ?? I am not sufficiently > knowledgable about windows to now how to do it. > > Cheers de Alan G3NYK > alan.melia@btinternet.com > > ----- Original Message ----- > From: > To: > Sent: 13 February 2004 08:59 > Subject: RE: LF: Timing GPS > > > Hi all > > Please keep in mind that Windows operating systems are very poor "time > keepers". > They drift very quickly, depending on the programs you are running. > A drift of one second up to one minute per day is not > uncommon (specially > with "data crunchers" softwares like real time FFT computing)! > I'm not talking about the drift of the PC hardware clock > itself which is > quite good (the time base xtal oscillator drifts around 2 s > per month on my > own computer), but from the Windows time management. > It seems that the time management on the Windows multitask OS > has a very low > priority ... > I verified this on Windows 95, Windows 98 and Windows Me. > Any other experience with other operating systems ? > > 73 de Jean-Louis F6AGR > > > > > > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 51035 invoked from network); 13 Feb 2004 09:00:52 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore04.plus.net with SMTP; 13 Feb 2004 09:00:52 -0000 Received: (qmail 70936 invoked from network); 13 Feb 2004 09:00:51 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 X-Priority: 3 X-MSMail-Priority: Normal Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 13 Feb 2004 09:00:50 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1ArZBq-000IKV-4z for dave@picks.force9.co.uk; Fri, 13 Feb 2004 09:00:50 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ArZAt-0006V3-6D for rs_out@blacksheep.org; Fri, 13 Feb 2004 08:59:51 +0000 Received: from [195.101.39.227] (helo=GWOUT.thalesgroup.com) by post.thorcom.com with esmtp (Exim 4.14) id 1ArZAs-0006Ui-Hc for rsgb_lf_group@blacksheep.org; Fri, 13 Feb 2004 08:59:50 +0000 X-Fake-Domain: thalescan.corp.thales Received: from thalescan.corp.thales (200.3.2.3) by GWOUT.thalesgroup.com (NPlex 6.5.026) id 402BB6990000984A for rsgb_lf_group@blacksheep.org; Fri, 13 Feb 2004 09:59:57 +0100 X-Fake-Domain: tccplex.tcc.thomson-csf.com Received: from tccplex.tcc.thomson-csf.com ([200.3.1.11]) by thalescan with InterScan Messaging Security Suite; Fri, 13 Feb 2004 09:58:59 +0100 X-Fake-Domain: NODALNET.clb.tcfr.thales Received: from NODALNET.clb.tcfr.thales (146.11.5.4) by tccplex.tcc.thomson-csf.com (NPlex 6.5.026) id 3EC391A20051D61F for rsgb_lf_group@blacksheep.org; Fri, 13 Feb 2004 09:59:56 +0100 Received: by NODALNET.clb.tcfr.thales with Internet Mail Service (5.5.2653.19) id ; Fri, 13 Feb 2004 09:58:59 +0100 X-Bad-Message-ID: no DNS (argos.clb.tcfr.thales) Message-ID: <8840D182F8BB7540B173D2B1FA0CA9AB018AE32F@argos.clb.tcfr.thales> From: Jean-Louis.RAULT@fr.thalesgroup.com To: rsgb_lf_group@blacksheep.org Date: Fri, 13 Feb 2004 09:59:38 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Subject: RE: LF: Timing GPS Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.3 required=5.0 tests=NO_REAL_NAME autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hi all Please keep in mind that Windows operating systems are very poor "time keepers". They drift very quickly, depending on the programs you are running. A drift of one second up to one minute per day is not uncommon (specially with "data crunchers" softwares like real time FFT computing)! I'm not talking about the drift of the PC hardware clock itself which is quite good (the time base xtal oscillator drifts around 2 s per month on my own computer), but from the Windows time management. It seems that the time management on the Windows multitask OS has a very low priority ... I verified this on Windows 95, Windows 98 and Windows Me. Any other experience with other operating systems ? 73 de Jean-Louis F6AGR > -----Message d'origine----- > De : 0482183881-0001@t-online.de [mailto:0482183881-0001@t-online.de] > Envoyé : jeudi 12 février 2004 23:19 > À : rsgb_lf_group@blacksheep.org > Objet : Re: LF: Timing GPS > > > Stewart Bryant schrieb: > > If GPS is not an option, then NTP (clock timing via the Internet) > > might be an alternative. > > > > There is some info on accuracy at > > > > http://www.ntp.org/ntpfaq/NTP-s-algo.htm#AEN2361 > > > > - Stewart G3YSX > > > Hi Stewart es All, > I do some PC clock synchronizations via internet using the program > "Time Watch", downloaded from http://www.blue-series.de. the > NTP server > transmitting the synchronization signals must be in your vicinity. > it is not usefull telling us that their timer is <1uS accurate > (in my case dirived from GPS receivings) if there is a long > wire to the > server. it`s something else if you would know the phase fault > on the line > and can correct it in some way. > > reading the PC clock in mSec from the window "Time Decoder" of SpecLab > of one PC with the clock (motherboard and sound card) permanent > synchronized by the standard time signal station DCF77 and at the > same time reading the mSec from the screen of the other PC just > clocking by the signals from the internet server, I believe I see > a difference, DCF77 in front. > > be that as it may, we should reach an agreement about what kind of > synchronization we will make use of. > > there is a problem in synchronizing the PC clock by DCF77 (as > with other > standard time signal transmitters): During lf transmittings > of your own > station there will be no clocking because the DCF77 receiver will be > overloaded (what is it in english "zugestopft"?). > > if the program "Africam" will come into fashion agn (I played with it > and the SD KIT abt 20 years ago) the case is`nt as critical > as it sounds: > if I rember right there are two helpfull knobs, Autotrack and > Aütofrequency. > > BTW. if my station transmits all night long my neighbour runs > into trouble with his employer: the radio alarm synchronized by DCF77 > doesnt wake him (the neighbour) up. > > regards > Uwe/dj8wx > > > > > > > > > > > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 47467 invoked from network); 10 Feb 2004 12:15:26 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore01.plus.net with SMTP; 10 Feb 2004 12:15:26 -0000 Received: (qmail 12483 invoked from network); 10 Feb 2004 12:16:32 -0000 Content-Transfer-Encoding: 8bit X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 X-Priority: 3 X-MSMail-Priority: Normal Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 10 Feb 2004 12:16:31 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AqWoZ-00037R-1m for dave@picks.force9.co.uk; Tue, 10 Feb 2004 12:16:31 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AqWlP-0001Kp-OV for rs_out@blacksheep.org; Tue, 10 Feb 2004 12:13:15 +0000 Received: from [195.101.39.227] (helo=GWOUT.thalesgroup.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AqWlP-0001J9-Bs for rsgb_lf_group@blacksheep.org; Tue, 10 Feb 2004 12:13:15 +0000 X-Fake-Domain: thalescan.corp.thales Received: from thalescan.corp.thales (200.3.2.3) by GWOUT.thalesgroup.com (NPlex 6.5.026) id 4024E3CE0003ADD2 for rsgb_lf_group@blacksheep.org; Tue, 10 Feb 2004 13:13:11 +0100 X-Fake-Domain: tccplex.tcc.thomson-csf.com Received: from tccplex.tcc.thomson-csf.com ([200.3.1.11]) by thalescan with InterScan Messaging Security Suite; Tue, 10 Feb 2004 13:12:14 +0100 X-Fake-Domain: NODALNET.clb.tcfr.thales Received: from NODALNET.clb.tcfr.thales (146.11.5.4) by tccplex.tcc.thomson-csf.com (NPlex 6.5.026) id 3EC391A200509944 for rsgb_lf_group@blacksheep.org; Tue, 10 Feb 2004 13:12:11 +0100 Received: by NODALNET.clb.tcfr.thales with Internet Mail Service (5.5.2653.19) id ; Tue, 10 Feb 2004 13:11:56 +0100 X-Bad-Message-ID: no DNS (argos.clb.tcfr.thales) Message-ID: <8840D182F8BB7540B173D2B1FA0CA9AB018AE304@argos.clb.tcfr.thales> From: Jean-Louis.RAULT@fr.thalesgroup.com To: rsgb_lf_group@blacksheep.org Date: Tue, 10 Feb 2004 13:11:51 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Subject: RE: LF: Timing GPS Content-Type: text/plain; charset=iso-8859-1; format=flowed X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.3 required=5.0 tests=NO_REAL_NAME autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Are you talking about something like coherent CW, Andy ? 73 de Jean-Louis F6AGR > -----Message d'origine----- > De : Talbot Andrew [mailto:ACTALBOT@mail.dstl.gov.uk] > > Judging by the lack of replies to this thread - there seems > little interest > here. A very great pity, as accurate GPS locked timing is > the next great > improvement we could make to LF signalling. From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 23037 invoked from network); 29 Feb 2004 22:47:01 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore03.plus.net with SMTP; 29 Feb 2004 22:47:01 -0000 Received: (qmail 50388 invoked from network); 29 Feb 2004 22:47:00 -0000 Content-Transfer-Encoding: 8bit X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 29 Feb 2004 22:46:59 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AxZi7-000Ct9-3d for dave@picks.force9.co.uk; Sun, 29 Feb 2004 22:46:59 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AxZhS-0001Nc-MO for rs_out@blacksheep.org; Sun, 29 Feb 2004 22:46:18 +0000 Received: from [134.153.232.16] (helo=cupids.ucs.mun.ca) by post.thorcom.com with esmtp (Exim 4.14) id 1AxZhR-0001NT-P3 for rsgb_lf_group@blacksheep.org; Sun, 29 Feb 2004 22:46:17 +0000 Received: from plato.ucs.mun.ca (root@plato.ucs.mun.ca [134.153.232.151]) by cupids.ucs.mun.ca (8.12.9p1/8.12.9) with ESMTP id i1TMkC8a001407 for ; Sun, 29 Feb 2004 19:16:12 -0330 (NST) (envelope-from jcraig@morgan.ucs.mun.ca) Received: from plato.ucs.mun.ca (jcraig@localhost [127.0.0.1]) by plato.ucs.mun.ca (8.12.3p2/8.12.3) with ESMTP id i1TMkBgj021689 for ; Sun, 29 Feb 2004 19:16:11 -0330 (NST) Received: (from jcraig@localhost) by plato.ucs.mun.ca (8.12.3p2/8.12.1/Submit) id i1TMkBuN015336; Sun, 29 Feb 2004 19:16:11 -0330 (NST) Date: Sun, 29 Feb 2004 19:16:11 -0330 (NST) From: "Joe Craig" X-X-Sender: jcraig@plato.ucs.mun.ca To: rsgb_lf_group@blacksheep.org In-reply-to: <17986813968.20040229201345@73.ru> Message-ID: References: <6.0.1.1.2.20040229131137.027eb800@POP3.freeler.nl> <1701579270.20040229174811@t-online.de> <17986813968.20040229201345@73.ru> MIME-Version: 1.0 Subject: Re: LF: VO1NA beaconing Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Sam, Could you confirm that the trace you sent was from the morning of 29 Feb? I can see a 'VO' quite clearly. 73 Joe On Sun, 29 Feb 2004, rn6bn wrote: > test reflector !? :( > What size of the file possible in this forum? > Sam, rn6bn mailto:rn6bn@73.ru From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 60783 invoked from network); 27 Feb 2004 22:29:24 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore04.plus.net with SMTP; 27 Feb 2004 22:29:24 -0000 Received: (qmail 54798 invoked from network); 27 Feb 2004 22:29:24 -0000 Content-Transfer-Encoding: 8bit X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 27 Feb 2004 22:29:22 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AwqTy-000E1j-Ir for dave@picks.force9.co.uk; Fri, 27 Feb 2004 22:29:22 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AwqT4-0002hb-Ga for rs_out@blacksheep.org; Fri, 27 Feb 2004 22:28:26 +0000 Received: from [134.153.232.16] (helo=cupids.ucs.mun.ca) by post.thorcom.com with esmtp (Exim 4.14) id 1AwqT1-0002h7-Ak for rsgb_lf_group@blacksheep.org; Fri, 27 Feb 2004 22:28:23 +0000 Received: from plato.ucs.mun.ca (root@plato.ucs.mun.ca [134.153.232.151]) by cupids.ucs.mun.ca (8.12.9p1/8.12.9) with ESMTP id i1RMSH8a082005 for ; Fri, 27 Feb 2004 18:58:18 -0330 (NST) (envelope-from jcraig@morgan.ucs.mun.ca) Received: from plato.ucs.mun.ca (jcraig@localhost [127.0.0.1]) by plato.ucs.mun.ca (8.12.3p2/8.12.3) with ESMTP id i1RMSGgj006387 for ; Fri, 27 Feb 2004 18:58:16 -0330 (NST) Received: (from jcraig@localhost) by plato.ucs.mun.ca (8.12.3p2/8.12.1/Submit) id i1RMSGtF025767; Fri, 27 Feb 2004 18:58:16 -0330 (NST) Date: Fri, 27 Feb 2004 18:58:15 -0330 (NST) From: "Joe Craig" X-X-Sender: jcraig@plato.ucs.mun.ca To: rsgb_lf_group@blacksheep.org In-reply-to: Message-ID: References: <000701c3f7a9$3efe6920$6507a8c0@Main> <002901c3f7e4$ef6b59e0$a71279d1@jsm> <000c01c3f997$04835680$e3c428c3@erica> <000401c3fca8$d8295ac0$a5e486d4@erica> MIME-Version: 1.0 Subject: LF: QRV Again. Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 According to Alan's predictions, the favourable conditions will not last much longer. Hoping to take advantage of the current conditions, I managed to get the wire out of the trees and up in the air again. QRV on 137.777 kHz 1.6 Amps QRSS 30 as I type. Cheers Joe VO1NA From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 53323 invoked from network); 27 Feb 2004 03:46:01 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore03.plus.net with SMTP; 27 Feb 2004 03:46:01 -0000 Received: (qmail 18041 invoked from network); 27 Feb 2004 03:46:01 -0000 Content-Transfer-Encoding: 8bit X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 27 Feb 2004 03:45:59 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AwYwp-0004Zc-A1 for dave@picks.force9.co.uk; Fri, 27 Feb 2004 03:45:59 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AwYvy-00023I-UU for rs_out@blacksheep.org; Fri, 27 Feb 2004 03:45:06 +0000 Received: from [134.153.232.16] (helo=cupids.ucs.mun.ca) by post.thorcom.com with esmtp (Exim 4.14) id 1AwYvx-000239-Qp for rsgb_lf_group@blacksheep.org; Fri, 27 Feb 2004 03:45:06 +0000 Received: from plato.ucs.mun.ca (root@plato.ucs.mun.ca [134.153.232.151]) by cupids.ucs.mun.ca (8.12.9p1/8.12.9) with ESMTP id i1R3ix8a079189 for ; Fri, 27 Feb 2004 00:15:00 -0330 (NST) (envelope-from jcraig@morgan.ucs.mun.ca) Received: from plato.ucs.mun.ca (jcraig@localhost [127.0.0.1]) by plato.ucs.mun.ca (8.12.3p2/8.12.3) with ESMTP id i1R3iwgj027146 for ; Fri, 27 Feb 2004 00:14:58 -0330 (NST) Received: (from jcraig@localhost) by plato.ucs.mun.ca (8.12.3p2/8.12.1/Submit) id i1R3iwe7026067; Fri, 27 Feb 2004 00:14:58 -0330 (NST) Date: Fri, 27 Feb 2004 00:14:57 -0330 (NST) From: "Joe Craig" X-X-Sender: jcraig@plato.ucs.mun.ca To: rsgb_lf_group@blacksheep.org In-reply-to: <000401c3fca8$d8295ac0$a5e486d4@erica> Message-ID: References: <000701c3f7a9$3efe6920$6507a8c0@Main> <002901c3f7e4$ef6b59e0$a71279d1@jsm> <000c01c3f997$04835680$e3c428c3@erica> <000401c3fca8$d8295ac0$a5e486d4@erica> MIME-Version: 1.0 Subject: LF: Radiated power down again. Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Dear LF Group, When I switched on the TX a few hours ago, I noticed the aerial current was only about .2 amps. I put on the snow shoes and went up the hill in the dark to the feed point and noticed the aerial wire was down again, no doubt a result of the sleet we had earlier today. Fortunately it was the weak link that had failed, but the wire is again tangled in the tree tops. Presently running 75 watts at 1.2 amps and making very faint traces on Brian's grabber. 73 Joe From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 66647 invoked from network); 26 Feb 2004 12:51:55 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore02.plus.net with SMTP; 26 Feb 2004 12:51:55 -0000 Received: (qmail 29202 invoked from network); 26 Feb 2004 12:51:55 -0000 Content-Transfer-Encoding: 8bit X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 26 Feb 2004 12:51:53 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AwKzZ-0007L1-NK for dave@picks.force9.co.uk; Thu, 26 Feb 2004 12:51:53 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AwKyb-0000I3-IB for rs_out@blacksheep.org; Thu, 26 Feb 2004 12:50:53 +0000 Received: from [134.153.232.16] (helo=cupids.ucs.mun.ca) by post.thorcom.com with esmtp (Exim 4.14) id 1AwKya-0000Hn-EU for rsgb_lf_group@blacksheep.org; Thu, 26 Feb 2004 12:50:52 +0000 Received: from plato.ucs.mun.ca (root@plato.ucs.mun.ca [134.153.232.151]) by cupids.ucs.mun.ca (8.12.9p1/8.12.9) with ESMTP id i1QCok8a085796 for ; Thu, 26 Feb 2004 09:20:47 -0330 (NST) (envelope-from jcraig@morgan.ucs.mun.ca) Received: from plato.ucs.mun.ca (jcraig@localhost [127.0.0.1]) by plato.ucs.mun.ca (8.12.3p2/8.12.3) with ESMTP id i1QCokgj022840 for ; Thu, 26 Feb 2004 09:20:46 -0330 (NST) Received: (from jcraig@localhost) by plato.ucs.mun.ca (8.12.3p2/8.12.1/Submit) id i1QCojdT008117; Thu, 26 Feb 2004 09:20:45 -0330 (NST) Date: Thu, 26 Feb 2004 09:20:45 -0330 (NST) From: "Joe Craig" X-X-Sender: jcraig@plato.ucs.mun.ca To: rsgb_lf_group@blacksheep.org In-reply-to: <1AwJrj-1pyDlw0@fwd05.sul.t-online.com> Message-ID: References: <1926266703.20040225212633@73.ru> <1AwJrj-1pyDlw0@fwd05.sul.t-online.com> MIME-Version: 1.0 Subject: Re: LF: VO1NA beaconing Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Hi Sam and Uwe, This is exciting and a new distance record for VO1NA. The previous one was for Ed RU6LA at about 6450 km. Thank-you very much for posting the picture. Would it be possible to get a copy of the complete ARGO screen? Also thanks to H. Wolff for his picture yesterday. Congrats to all. The TX is a class E, designed with help from Alan G3NYK, running 100 watts at 1.6 amps to a single 100 metre wire. (Another 100 metre wire in parallel was downed during a storm) Cheers Joe On Thu, 26 Feb 2004, jannsen wrote: > rn6bn schrieb: > > Hello rsgb, > > > > I think this VO1NA. > > 25/02/2004 > > > > -- > > Best regards, > > Sam, rn6bn mailto:rn6bn@73.ru > > Hi Sam. > > 1. > yes obviously it is! congratulations. > from your QTH KN95oa the distance to Joe/VO1NA is 6600km. > 2. > tks for the last private mail, Sam. > > vy 73 > Uwe/dj8wx > > > > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 73156 invoked from network); 23 Feb 2004 01:11:15 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore03.plus.net with SMTP; 23 Feb 2004 01:11:15 -0000 Received: (qmail 31996 invoked from network); 23 Feb 2004 01:11:14 -0000 Content-Transfer-Encoding: 8bit X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 23 Feb 2004 01:11:11 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1Av4cp-0007MB-Qo for dave@picks.force9.co.uk; Mon, 23 Feb 2004 01:11:11 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Av4c2-0004gj-4c for rs_out@blacksheep.org; Mon, 23 Feb 2004 01:10:22 +0000 Received: from [134.153.232.16] (helo=cupids.ucs.mun.ca) by post.thorcom.com with esmtp (Exim 4.14) id 1Av4c1-0004ga-2x for rsgb_lf_group@blacksheep.org; Mon, 23 Feb 2004 01:10:21 +0000 Received: from plato.ucs.mun.ca (root@plato.ucs.mun.ca [134.153.232.151]) by cupids.ucs.mun.ca (8.12.9p1/8.12.9) with ESMTP id i1N1AEup034044 for ; Sun, 22 Feb 2004 21:40:15 -0330 (NST) (envelope-from jcraig@morgan.ucs.mun.ca) Received: from plato.ucs.mun.ca (jcraig@localhost [127.0.0.1]) by plato.ucs.mun.ca (8.12.3p2/8.12.3) with ESMTP id i1N1AEgj014428 for ; Sun, 22 Feb 2004 21:40:14 -0330 (NST) Received: (from jcraig@localhost) by plato.ucs.mun.ca (8.12.3p2/8.12.1/Submit) id i1N1AEnk023173; Sun, 22 Feb 2004 21:40:14 -0330 (NST) Date: Sun, 22 Feb 2004 21:40:14 -0330 (NST) From: "Joe Craig" X-X-Sender: jcraig@plato.ucs.mun.ca To: rsgb_lf_group@blacksheep.org In-reply-to: <000c01c3f99f$d7cda240$11e086d4@erica> Message-ID: References: <000701c3f7a9$3efe6920$6507a8c0@Main> <002901c3f7e4$ef6b59e0$a71279d1@jsm> <000c01c3f997$04835680$e3c428c3@erica> <000c01c3f99f$d7cda240$11e086d4@erica> MIME-Version: 1.0 Subject: Re: LF: Re: VO1NA QRV again Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Peter, You started off quite strong around 2330 then faded. I replied but saw nothing as of 0100. Will run dot 30 beacon. 73 Joe From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 96560 invoked from network); 22 Feb 2004 23:24:02 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore03.plus.net with SMTP; 22 Feb 2004 23:24:02 -0000 Received: (qmail 54260 invoked from network); 22 Feb 2004 23:24:02 -0000 Content-Transfer-Encoding: 8bit X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 22 Feb 2004 23:24:00 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1Av2x6-000DqH-F4 for dave@picks.force9.co.uk; Sun, 22 Feb 2004 23:24:00 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Av2wU-0001Co-Tr for rs_out@blacksheep.org; Sun, 22 Feb 2004 23:23:22 +0000 Received: from [134.153.232.16] (helo=cupids.ucs.mun.ca) by post.thorcom.com with esmtp (Exim 4.14) id 1Av2wT-0001Cf-Eh for rsgb_lf_group@blacksheep.org; Sun, 22 Feb 2004 23:23:21 +0000 Received: from plato.ucs.mun.ca (root@plato.ucs.mun.ca [134.153.232.151]) by cupids.ucs.mun.ca (8.12.9p1/8.12.9) with ESMTP id i1MNNGup087259 for ; Sun, 22 Feb 2004 19:53:17 -0330 (NST) (envelope-from jcraig@morgan.ucs.mun.ca) Received: from plato.ucs.mun.ca (jcraig@localhost [127.0.0.1]) by plato.ucs.mun.ca (8.12.3p2/8.12.3) with ESMTP id i1MNNGgj023521 for ; Sun, 22 Feb 2004 19:53:16 -0330 (NST) Received: (from jcraig@localhost) by plato.ucs.mun.ca (8.12.3p2/8.12.1/Submit) id i1MNNGxm021105; Sun, 22 Feb 2004 19:53:16 -0330 (NST) Date: Sun, 22 Feb 2004 19:53:15 -0330 (NST) From: "Joe Craig" X-X-Sender: jcraig@plato.ucs.mun.ca To: rsgb_lf_group@blacksheep.org In-reply-to: <000c01c3f997$04835680$e3c428c3@erica> Message-ID: References: <000701c3f7a9$3efe6920$6507a8c0@Main> <002901c3f7e4$ef6b59e0$a71279d1@jsm> <000c01c3f997$04835680$e3c428c3@erica> MIME-Version: 1.0 Subject: Re: LF: Re: VO1NA QRV again Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Peter, I'll start watching on the half hour starting 2330. Brian's grab is showing good reception at the moment. Cheers Joe On Sun, 22 Feb 2004, g3ldo wrote: > > Joe > > > > One of the 100 metre wires is now freed from the tree tops. The > > field strength is much better but not quite as good as with the > > 2 wire system. I'm running 100 watts at 1.5 amps and will > > be on 137.777 kHz dot 30 tonight starting 0000 UTC. > > Will you be on tonight. I will transmit on 135.921 something on the half > hour. > > Regards, > Peter, G3LDO > > > > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 25704 invoked from network); 20 Feb 2004 20:20:29 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore03.plus.net with SMTP; 20 Feb 2004 20:20:29 -0000 Received: (qmail 80550 invoked from network); 20 Feb 2004 20:20:29 -0000 Content-Transfer-Encoding: 8bit X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 20 Feb 2004 20:20:27 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AuH8N-000KiI-46 for dave@picks.force9.co.uk; Fri, 20 Feb 2004 20:20:27 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AuH7p-00037e-Eu for rs_out@blacksheep.org; Fri, 20 Feb 2004 20:19:53 +0000 Received: from [134.153.232.16] (helo=cupids.ucs.mun.ca) by post.thorcom.com with esmtp (Exim 4.14) id 1AuH7o-00037V-Hr for rsgb_lf_group@blacksheep.org; Fri, 20 Feb 2004 20:19:52 +0000 Received: from plato.ucs.mun.ca (root@plato.ucs.mun.ca [134.153.232.151]) by cupids.ucs.mun.ca (8.12.9p1/8.12.9) with ESMTP id i1KKIDTT004249 for ; Fri, 20 Feb 2004 16:48:16 -0330 (NST) (envelope-from jcraig@morgan.ucs.mun.ca) Received: from plato.ucs.mun.ca (jcraig@localhost [127.0.0.1]) by plato.ucs.mun.ca (8.12.3p2/8.12.3) with ESMTP id i1KKIDgj032686 for ; Fri, 20 Feb 2004 16:48:13 -0330 (NST) Received: (from jcraig@localhost) by plato.ucs.mun.ca (8.12.3p2/8.12.1/Submit) id i1KKIDXx022587; Fri, 20 Feb 2004 16:48:13 -0330 (NST) Date: Fri, 20 Feb 2004 16:48:12 -0330 (NST) From: "Joe Craig" X-X-Sender: jcraig@plato.ucs.mun.ca To: rsgb_lf_group@blacksheep.org In-reply-to: Message-ID: References: <000701c3f7a9$3efe6920$6507a8c0@Main> <002901c3f7e4$ef6b59e0$a71279d1@jsm> MIME-Version: 1.0 Subject: LF: VO1NA QRV again Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Dear LF group, One of the 100 metre wires is now freed from the tree tops. The field strength is much better but not quite as good as with the 2 wire system. I'm running 100 watts at 1.5 amps and will be on 137.777 kHz dot 30 tonight starting 0000 UTC. 73 Joe From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 71161 invoked from network); 9 Feb 2004 10:21:22 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore04.plus.net with SMTP; 9 Feb 2004 10:21:22 -0000 Received: (qmail 28011 invoked from network); 9 Feb 2004 10:21:21 -0000 Content-Transfer-Encoding: 8bit X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 9 Feb 2004 10:19:50 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1Aq8VM-000OBI-Ts for dave@picks.force9.co.uk; Mon, 09 Feb 2004 10:19:04 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Aq8Ue-0002Ly-FH for rs_out@blacksheep.org; Mon, 09 Feb 2004 10:18:20 +0000 Received: from [134.153.232.16] (helo=cupids.ucs.mun.ca) by post.thorcom.com with esmtp (Exim 4.14) id 1Aq8Ub-0002Lp-Cu for rsgb_lf_group@blacksheep.org; Mon, 09 Feb 2004 10:18:17 +0000 Received: from plato.ucs.mun.ca (root@plato.ucs.mun.ca [134.153.232.151]) by cupids.ucs.mun.ca (8.12.9p1/8.12.9) with ESMTP id i19AICn8093041 for ; Mon, 9 Feb 2004 06:48:13 -0330 (NST) (envelope-from jcraig@morgan.ucs.mun.ca) Received: from plato.ucs.mun.ca (jcraig@localhost [127.0.0.1]) by plato.ucs.mun.ca (8.12.3p2/8.12.3) with ESMTP id i19AICgj022589 for ; Mon, 9 Feb 2004 06:48:12 -0330 (NST) Received: (from jcraig@localhost) by plato.ucs.mun.ca (8.12.3p2/8.12.1/Submit) id i19AIBgp019223; Mon, 9 Feb 2004 06:48:11 -0330 (NST) Date: Mon, 9 Feb 2004 06:48:11 -0330 (NST) From: "Joe Craig" X-X-Sender: jcraig@plato.ucs.mun.ca To: rsgb_lf_group@blacksheep.org In-reply-to: <000401c3eee8$f2a181c0$0cc828c3@erica> Message-ID: References: <6.0.1.1.2.20040201150716.03705e90@POP3.freeler.nl> <002701c3eea2$487a67c0$eee086d4@erica> <4026D0D6.60C47686@att.net> <002f01c3eea6$c54ac7a0$eee086d4@erica> <000401c3eee8$f2a181c0$0cc828c3@erica> MIME-Version: 1.0 Subject: Re: LF: Re: TA. Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Peter and group Thank-you for the report of the beacon, Peter. I'm pleasantly surprised because the aerial is well below its normal height and still snagged in trees. I guess the insulation on the wire helps. I expect my chain-saw will be useful in correcting the tree trouble. It was sent for repairs and will be ready soon. 73 Joe From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 57318 invoked from network); 9 Feb 2004 01:41:43 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore03.plus.net with SMTP; 9 Feb 2004 01:41:43 -0000 Received: (qmail 81857 invoked from network); 9 Feb 2004 01:41:42 -0000 Content-Transfer-Encoding: 8bit X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 9 Feb 2004 01:41:40 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1Aq0Qe-000L0e-Dx for dave@picks.force9.co.uk; Mon, 09 Feb 2004 01:41:40 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Aq0Pr-0002p5-Ip for rs_out@blacksheep.org; Mon, 09 Feb 2004 01:40:51 +0000 Received: from [134.153.232.16] (helo=cupids.ucs.mun.ca) by post.thorcom.com with esmtp (Exim 4.14) id 1Aq0Pq-0002ow-Go for rsgb_lf_group@blacksheep.org; Mon, 09 Feb 2004 01:40:50 +0000 Received: from plato.ucs.mun.ca (root@plato.ucs.mun.ca [134.153.232.151]) by cupids.ucs.mun.ca (8.12.9p1/8.12.9) with ESMTP id i191ejn8077175 for ; Sun, 8 Feb 2004 22:10:46 -0330 (NST) (envelope-from jcraig@morgan.ucs.mun.ca) Received: from plato.ucs.mun.ca (jcraig@localhost [127.0.0.1]) by plato.ucs.mun.ca (8.12.3p2/8.12.3) with ESMTP id i191ejgj027707 for ; Sun, 8 Feb 2004 22:10:45 -0330 (NST) Received: (from jcraig@localhost) by plato.ucs.mun.ca (8.12.3p2/8.12.1/Submit) id i191ejw6023754; Sun, 8 Feb 2004 22:10:45 -0330 (NST) Date: Sun, 8 Feb 2004 22:10:44 -0330 (NST) From: "Joe Craig" X-X-Sender: jcraig@plato.ucs.mun.ca To: rsgb_lf_group@blacksheep.org In-reply-to: <002f01c3eea6$c54ac7a0$eee086d4@erica> Message-ID: References: <6.0.1.1.2.20040201150716.03705e90@POP3.freeler.nl> <002701c3eea2$487a67c0$eee086d4@erica> <4026D0D6.60C47686@att.net> <002f01c3eea6$c54ac7a0$eee086d4@erica> MIME-Version: 1.0 Subject: Re: LF: Re: TA. Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Peter, Got you on both frequencies. Good copy. I replied on 137.777 but guess the antenna is still too low. Joe On Mon, 9 Feb 2004, g3ldo wrote: > > > Peter, > > > > I believe your signal is visible here in NC but it is so close to my > > local loran line at 135921.053 kHz it's hard to tell for sure. Could > > you possible bump the freq up a tad? > > > OK, now on135922.1 according to the frequency counter > > Regards, > Peter, G3LDO > > > > > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 49999 invoked from network); 8 Feb 2004 16:19:10 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore01.plus.net with SMTP; 8 Feb 2004 16:19:10 -0000 Received: (qmail 12453 invoked from network); 8 Feb 2004 16:19:57 -0000 Content-Transfer-Encoding: 8bit X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 8 Feb 2004 16:19:55 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1Aprf1-00030k-Ok for dave@picks.force9.co.uk; Sun, 08 Feb 2004 16:19:55 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AprdI-0007DE-0t for rs_out@blacksheep.org; Sun, 08 Feb 2004 16:18:08 +0000 Received: from [134.153.232.16] (helo=cupids.ucs.mun.ca) by post.thorcom.com with esmtp (Exim 4.14) id 1AprdE-0007D5-Mm for rsgb_lf_group@blacksheep.org; Sun, 08 Feb 2004 16:18:04 +0000 Received: from plato.ucs.mun.ca (root@plato.ucs.mun.ca [134.153.232.151]) by cupids.ucs.mun.ca (8.12.9p1/8.12.9) with ESMTP id i18GHxgZ003657 for ; Sun, 8 Feb 2004 12:48:00 -0330 (NST) (envelope-from jcraig@morgan.ucs.mun.ca) Received: from plato.ucs.mun.ca (jcraig@localhost [127.0.0.1]) by plato.ucs.mun.ca (8.12.3p2/8.12.3) with ESMTP id i18GHmgj030795 for ; Sun, 8 Feb 2004 12:47:58 -0330 (NST) Received: (from jcraig@localhost) by plato.ucs.mun.ca (8.12.3p2/8.12.1/Submit) id i18GHbWC031106; Sun, 8 Feb 2004 12:47:37 -0330 (NST) Date: Sun, 8 Feb 2004 12:47:36 -0330 (NST) From: "Joe Craig" X-X-Sender: jcraig@plato.ucs.mun.ca To: "LF-Group" In-reply-to: Message-ID: References: <6.0.1.1.2.20040201150716.03705e90@POP3.freeler.nl> MIME-Version: 1.0 Subject: LF: Re: One leg again... Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Dear LF Group, After replacing guys on the tower, fighting fearsome fir trees in chest-deep snow and getting a lot of much needed exercise in the process, I'm pleased to report that half my aerial is off the ground but at reduced height. It takes 70 watts at 1.0 amp so ERP is down at least 6 dB, but I'll run it tonight starting 2300 UTC 137.777 kHz, dot 30. 73 Joe VO1NA From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 57080 invoked from network); 1 Feb 2004 19:54:30 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore02.plus.net with SMTP; 1 Feb 2004 19:54:30 -0000 Received: (qmail 60599 invoked from network); 1 Feb 2004 19:54:29 -0000 Content-Transfer-Encoding: 8bit X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 1 Feb 2004 19:54:28 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AnNfo-000FcO-3j for dave@picks.force9.co.uk; Sun, 01 Feb 2004 19:54:28 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AnNes-0004Xn-D7 for rs_out@blacksheep.org; Sun, 01 Feb 2004 19:53:30 +0000 Received: from [134.153.232.16] (helo=cupids.ucs.mun.ca) by post.thorcom.com with esmtp (Exim 4.14) id 1AnNep-0004Xe-BO for rsgb_lf_group@blacksheep.org; Sun, 01 Feb 2004 19:53:27 +0000 Received: from plato.ucs.mun.ca (root@plato.ucs.mun.ca [134.153.232.151]) by cupids.ucs.mun.ca (8.12.9p1/8.12.9) with ESMTP id i11JrMic003485 for ; Sun, 1 Feb 2004 16:23:23 -0330 (NST) (envelope-from jcraig@morgan.ucs.mun.ca) Received: from plato.ucs.mun.ca (jcraig@localhost [127.0.0.1]) by plato.ucs.mun.ca (8.12.3p2/8.12.3) with ESMTP id i11JrMgj019876 for ; Sun, 1 Feb 2004 16:23:22 -0330 (NST) Received: (from jcraig@localhost) by plato.ucs.mun.ca (8.12.3p2/8.12.1/Submit) id i11JrB7n019968; Sun, 1 Feb 2004 16:23:11 -0330 (NST) Date: Sun, 1 Feb 2004 16:23:11 -0330 (NST) From: "Joe Craig" X-X-Sender: jcraig@plato.ucs.mun.ca To: "LF-Group" In-reply-to: <6.0.1.1.2.20040201150716.03705e90@POP3.freeler.nl> Message-ID: References: <6.0.1.1.2.20040201150716.03705e90@POP3.freeler.nl> MIME-Version: 1.0 Subject: LF: One leg again... Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 LF group One of the 2 100 metre legs of the TX antenna came down and is entagled in the treetops as before, thanks to heavy wind and freezing rain. ($%&*@ WX!!!) I'll run the beacon again tonight/toworrow morning 137.777 kHz QRSS30, assuming the other leg remains in the air. 73 Joe VO1NA From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 82911 invoked from network); 18 Feb 2004 16:20:29 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore03.plus.net with SMTP; 18 Feb 2004 16:20:29 -0000 Received: (qmail 45352 invoked from network); 18 Feb 2004 16:20:29 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 18 Feb 2004 16:20:28 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AtUR2-000Bfe-5A for dave@picks.force9.co.uk; Wed, 18 Feb 2004 16:20:28 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AtUQS-0008U5-VF for rs_out@blacksheep.org; Wed, 18 Feb 2004 16:19:52 +0000 Received: from [130.244.199.131] (helo=fep03-svc.swip.net) by post.thorcom.com with esmtp (Exim 4.14) id 1AtUQS-0008Tw-5j for rsgb_lf_group@blacksheep.org; Wed, 18 Feb 2004 16:19:52 +0000 X-Fake-Domain: oemcomputer Received: from oemcomputer ([213.101.37.130]) by fep03-svc.swip.net with SMTP id <20040218161950.IHOS23024.fep03-svc.swip.net@oemcomputer> for ; Wed, 18 Feb 2004 17:19:50 +0100 X-Bad-Message-ID: no DNS (oemcomputer) Message-ID: <002001c3f63b$1307fda0$bb2765d5@oemcomputer> From: "Johan Bodin" To: rsgb_lf_group@blacksheep.org References: <7D653C9C42F5D411A27C00508BF8803D01A9F415@mail.dstl.gov.uk> <4031FB0A.8040706@usa.net> <1AtSHt-0jd19s0@fwd01.sul.t-online.com> Date: Wed, 18 Feb 2004 17:19:25 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1158 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: Re: LF: Re:: Timing GPS Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Uwe/dj8wx wrote: > Operation Temperature range: -300C~+700C -300C !? Quite impressive.... =o) 73 Johan SM6LKM From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 9876 invoked from network); 3 Feb 2004 08:28:07 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore04.plus.net with SMTP; 3 Feb 2004 08:28:07 -0000 Received: (qmail 23970 invoked from network); 3 Feb 2004 08:28:06 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 3 Feb 2004 08:28:05 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1Anvuf-0005qn-EQ for dave@picks.force9.co.uk; Tue, 03 Feb 2004 08:28:05 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Anvth-0007ho-7e for rs_out@blacksheep.org; Tue, 03 Feb 2004 08:27:05 +0000 Received: from [130.244.199.130] (helo=fep02-svc.swip.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Anvtg-0007hf-E3 for rsgb_lf_group@blacksheep.org; Tue, 03 Feb 2004 08:27:04 +0000 X-Fake-Domain: oemcomputer Received: from oemcomputer ([213.101.36.6]) by fep02-svc.swip.net with SMTP id <20040203082702.QYTB11017.fep02-svc.swip.net@oemcomputer> for ; Tue, 3 Feb 2004 09:27:02 +0100 X-Bad-Message-ID: no DNS (oemcomputer) Message-ID: <008801c3ea2f$8a0a5000$062465d5@oemcomputer> From: "Johan Bodin" To: rsgb_lf_group@blacksheep.org References: <6.0.1.1.2.20040129133740.036bcc40@POP3.freeler.nl> <6.0.1.1.2.20040130133028.02f11dc0@POP3.freeler.nl> <001801c3e80d$73b88fc0$e1e9fc3e@l8p8y6> <000801c3e844$96555220$2102000a@ibm> Date: Tue, 3 Feb 2004 09:27:07 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1158 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: Schematics powersupplies 50-100Volt wanted Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hello Dick, > I want to run something with an fixed voltage between 50 to 100 Volt, > depending on what transformer configuration I'm using. The Windows program "PSU Designer II" from Duncan Amps is a very nice tool for PSU design. It computes a lot of things including peak rectifier current, start-up transient behaviour etc. and displays it in both tabular and graphic forms. It is avaliable here: http://www.duncanamps.com/software.html 73 Johan Bodin SM6LKM From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 79367 invoked from network); 22 Feb 2004 14:36:18 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore01.plus.net with SMTP; 22 Feb 2004 14:36:18 -0000 Received: (qmail 57196 invoked from network); 22 Feb 2004 14:39:31 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 22 Feb 2004 14:39:30 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AuulW-000ElD-06 for dave@picks.force9.co.uk; Sun, 22 Feb 2004 14:39:30 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Auukv-0001z4-Ec for rs_out@blacksheep.org; Sun, 22 Feb 2004 14:38:53 +0000 Received: from [209.225.28.208] (helo=mxsf08.cluster1.charter.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Auuku-0001yv-AG for rsgb_lf_group@blacksheep.org; Sun, 22 Feb 2004 14:38:52 +0000 X-Fake-Domain: johncellarnew Received: from johncellarnew (cpe-68-118-232-30.ma.charter.com [68.118.232.30]) by mxsf08.cluster1.charter.net (8.12.10/8.12.8) with SMTP id i1MEaIfY039243; Sun, 22 Feb 2004 09:36:20 -0500 (EST) (envelope-from w1tag@charter.net) Message-ID: <001c01c3f951$3e83d440$0500a8c0@charter.net> From: "John Andrews" To: "LowFER reflector" Cc: rsgb_lf_group@blacksheep.org References: <001101c3f91c$82ba8c10$687a37c0@w2ksn> Date: Sun, 22 Feb 2004 14:36:22 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: feedback requested for new WOLF Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Stewart, Wow! This sounds very interesting. My comments will be mostly from the U.S. "Lowfer" perspective. Receiving: R1: Loran lines are very faint in the 160-190 kHz range, particularly in the upper end where most U.S. activity occurs, so use of this option would be restricted to receiving EU signals on 136. The intermittent presence of CFH on 137.0 would make the SSB filter approach somewhat difficult for fellows in the eastern U.S.and Canada. R2. Again, the SSB filter would be a drawback. In the eastern U.S., QRM from broadcast operations on 183 and 189 kHz is an issue. Anything which makes that worse should be avoided. R3. My vote goes here. My receiver derives all frequencies from a single L.O. But probably due to integer math in the DDS, there is a 55 milliHertz offset in the output audio. As long as the WOLF decoder can be set to accept the offset signal, I would be OK. Transmitting: T1. That would be my preference. Be advised that we have experienced timing problems with the "keyed tone" approach. The issues should be less with rates of 1 b/s, however. Could you use the RTS pin on a serial port instead? T2. This would be my second choice, and it does eliminate the timing issues with keying. My guess is that the U.S. guys would prefer the T1 option, though. T3 and up. Since I have already voted for the use of a GPS receiver for controlling the receiver L.O. and the decoder/encoder timing, these options are of less interest. But I would defer to those with GPS setups that do not have a disciplined oscillator. John Andrews, W1TAG From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 86413 invoked from network); 11 Feb 2004 17:52:37 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore02.plus.net with SMTP; 11 Feb 2004 17:52:37 -0000 Received: (qmail 32158 invoked from network); 11 Feb 2004 17:52:36 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 11 Feb 2004 17:52:35 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AqyXL-00087v-0Y for dave@picks.force9.co.uk; Wed, 11 Feb 2004 17:52:35 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AqyWg-0005Fy-Fk for rs_out@blacksheep.org; Wed, 11 Feb 2004 17:51:54 +0000 Received: from [206.173.118.90] (helo=cliff.concentric.net) by post.thorcom.com with esmtp (Exim 4.14) id 1AqyWf-0005Fp-A9 for rsgb_lf_group@blacksheep.org; Wed, 11 Feb 2004 17:51:53 +0000 X-Fake-Domain: jka Received: from jka (208.37.242.34.ptr.us.xo.net [208.37.242.34]) by cliff.concentric.net [Concentric SMTP Relay 1.1] id i1BHppC02221 for ; Wed, 11 Feb 2004 12:51:51 -0500 (EST) Message-ID: <002701c3f0c8$5e21ba60$3401a8c0@comrex.com> From: "John Andrews" To: rsgb_lf_group@blacksheep.org References: <20040210184134.KTHX20454.tomts35-srv.bellnexxia.net@smtp.bellnexxia.net> <402A6646.4030006@virgin.net> Date: Wed, 11 Feb 2004 12:56:24 -0500 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: Re: LF: Timing GPS Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 For those interested in GPS-locked BPSK, you might want to keep an eye on the Lowfer QTH.net reflector. In the next week or so, 4-5 of us will have transmit and receive capability using VE2IQ's Africam program. I expect considerable message traffic on the subject. John Andrews, W1TAG From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 79926 invoked from network); 9 Feb 2004 00:41:10 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore04.plus.net with SMTP; 9 Feb 2004 00:41:10 -0000 Received: (qmail 84610 invoked from network); 9 Feb 2004 00:41:10 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 9 Feb 2004 00:41:08 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1ApzU4-000Lod-Oq for dave@picks.force9.co.uk; Mon, 09 Feb 2004 00:41:08 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ApzTV-0000Kd-6B for rs_out@blacksheep.org; Mon, 09 Feb 2004 00:40:33 +0000 Received: from [209.225.28.209] (helo=mxsf09.cluster1.charter.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ApzTU-0000Ik-1y for rsgb_lf_group@blacksheep.org; Mon, 09 Feb 2004 00:40:32 +0000 X-Fake-Domain: johncellarnew Received: from johncellarnew (cpe-68-118-232-30.ma.charter.com [68.118.232.30]) by mxsf09.cluster1.charter.net (8.12.10/8.12.8) with SMTP id i190d8BT080004 for ; Sun, 8 Feb 2004 19:39:08 -0500 (EST) (envelope-from w1tag@charter.net) Message-ID: <002901c3eea5$2cd9ed80$0500a8c0@charter.net> From: "John Andrews" To: rsgb_lf_group@blacksheep.org References: <000d01c3eea3$161bb3a0$6507a8c0@Main> Date: Mon, 9 Feb 2004 00:39:28 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: T/A 8/9th Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Alan, He's there, at least on the first half of the hour. Lot of local electrical noise here tonight. Also seeing VE3OT just below 137.780. Somebody's transmitting on 137.9221... haven't seen enough to ID. John Andrews, W1TAG From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 53280 invoked from network); 20 Feb 2004 22:30:50 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore03.plus.net with SMTP; 20 Feb 2004 22:30:50 -0000 Received: (qmail 85709 invoked from network); 20 Feb 2004 22:30:49 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 20 Feb 2004 22:30:48 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AuJAW-000MAs-C9 for dave@picks.force9.co.uk; Fri, 20 Feb 2004 22:30:48 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AuJ9b-0007e1-IM for rs_out@blacksheep.org; Fri, 20 Feb 2004 22:29:51 +0000 Received: from [213.4.129.135] (helo=tnetsmtp2.mail.isp) by post.thorcom.com with esmtp (Exim 4.14) id 1AuJ9a-0007ds-Ng for rsgb_lf_group@blacksheep.org; Fri, 20 Feb 2004 22:29:50 +0000 X-Fake-Domain: BI57429bankinter Received: from BI57429bankinter ([81.41.170.225]) by tnetsmtp2.mail.isp (terra.es) with ESMTP id HTEMHO00.5JV for ; Fri, 20 Feb 2004 23:29:48 +0100 X-Bad-Message-ID: no DNS (BI57429bankinter) Message-ID: <002301c3f800$f14c3e20$e1aa2951@BI57429bankinter> From: =?iso-8859-1?Q?Jos=E9_Manuel?= To: rsgb_lf_group@blacksheep.org Date: Fri, 20 Feb 2004 23:28:58 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Strange signal Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hi all: Does anybody else receive a continuos and strange signal on 135923,6 Hz. 73 de José, EA1PX From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 82850 invoked from network); 24 Feb 2004 00:07:27 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore03.plus.net with SMTP; 24 Feb 2004 00:07:27 -0000 Received: (qmail 12609 invoked from network); 24 Feb 2004 00:07:27 -0000 Content-Transfer-Encoding: 8bit X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 X-Priority: 3 X-MSMail-Priority: Normal Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 24 Feb 2004 00:06:10 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AvQ5S-0001W4-71 for dave@picks.force9.co.uk; Tue, 24 Feb 2004 00:06:10 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AvQ3m-0003CM-Jq for rs_out@blacksheep.org; Tue, 24 Feb 2004 00:04:26 +0000 X-No-DNS-For: 64.4.35.12 Received: from [64.4.35.12] (helo=hotmail.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AvQ3l-00030v-ML for rsgb_lf_group@blacksheep.org; Tue, 24 Feb 2004 00:04:25 +0000 Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Mon, 23 Feb 2004 16:03:54 -0800 Received: from 136.226.254.148 by by12fd.bay12.hotmail.msn.com with HTTP; Tue, 24 Feb 2004 00:03:54 GMT X-Originating-IP: [136.226.254.148] X-Originating-Email: [hellozerohellozero@hotmail.com] X-Sender: hellozerohellozero@hotmail.com X-Bad-From: No DNS (hotmail.com) From: "Laurence KL1X" To: rsgb_lf_group@blacksheep.org Date: Mon, 23 Feb 2004 15:03:54 -0900 MIME-Version: 1.0 X-Bad-Message-ID: no DNS (hotmail.com) Message-ID: X-OriginalArrivalTime: 24 Feb 2004 00:03:54.0401 (UTC) FILETIME=[B0F74110:01C3FA69] Subject: Re: LF: 3B9C Content-Type: text/plain; charset=iso-8859-1; format=flowed X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 5 Given my limited experiences on 136Khz in the equatorial areas, but a lot near 500Khz (dah ditting) Id say that Tropical it isnt a no no and given reasonable conditions/time of year/good NB. Ghana or Costa Rican X band had a very good possibility of happening. I was probably within a couple of dBs of "good" copy of a couple of Europeans from Accra. The 870's NB did a great job...honest....Never say never....!!! I feel the SSN numbers are pulling me apart - High for HF and Low for LF... Laurence, living in a hotel.... _________________________________________________________________ Watch high-quality video with fast playback at MSN Video. Free! http://click.atdmt.com/AVE/go/onm00200365ave/direct/01/ From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 59163 invoked from network); 3 Feb 2004 02:05:09 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore02.plus.net with SMTP; 3 Feb 2004 02:05:09 -0000 Received: (qmail 73106 invoked from network); 3 Feb 2004 02:05:08 -0000 Content-Transfer-Encoding: 8bit X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 3 Feb 2004 02:05:07 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1Anpw3-000IqL-9g for dave@picks.force9.co.uk; Tue, 03 Feb 2004 02:05:07 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AnpvB-0001md-60 for rs_out@blacksheep.org; Tue, 03 Feb 2004 02:04:13 +0000 Received: from [64.4.35.106] (helo=hotmail.com) by post.thorcom.com with esmtp (Exim 4.14) id 1Anpv8-0001mU-Cf for rsgb_lf_group@blacksheep.org; Tue, 03 Feb 2004 02:04:10 +0000 Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Mon, 2 Feb 2004 18:03:39 -0800 Received: from 136.226.254.148 by by12fd.bay12.hotmail.msn.com with HTTP; Tue, 03 Feb 2004 02:03:38 GMT X-Originating-IP: [136.226.254.148] X-Originating-Email: [hellozerohellozero@hotmail.com] X-Sender: hellozerohellozero@hotmail.com From: "Laurence KL1X" To: rsgb_lf_group@blacksheep.org Date: Mon, 02 Feb 2004 17:03:38 -0900 MIME-Version: 1.0 Message-ID: X-OriginalArrivalTime: 03 Feb 2004 02:03:39.0031 (UTC) FILETIME=[F0AA0A70:01C3E9F9] Subject: LF: wintery cheer Content-Type: text/plain; charset=iso-8859-1; format=flowed X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Ill be operating from Fiji (3D2) ITU56 and CQ Zone 32 from June 19th (appx) for 10 days. I will be, the eternal optimist, taking 137Khz receive and setting the amp'd loop/vertical hopefully on a beach. Im there to "work" (honest) so ham radio will be spare time only, but I hope to leave the rx gear on +24Hrs. Expected receive freqs will be DCF39 and 135,922 and up around 137,777 dot something Im laying an open bet that we will see DCF39....the path length to Central Europe is appx 16,400Kms and paths may go over/near the North/South Poles - OZ and ZL are closer so we may have a listen for them. Never say never and sorry we arent going in a Eu/USA winter - Cheers Laurence KL1X still up North. _________________________________________________________________ Check out the coupons and bargains on MSN Offers! http://shopping.msn.com/softcontent/softcontent.aspx?scmId=1418 From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 23053 invoked from network); 16 Feb 2004 14:01:17 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore01.plus.net with SMTP; 16 Feb 2004 14:01:17 -0000 Received: (qmail 46129 invoked from network); 16 Feb 2004 14:03:27 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 16 Feb 2004 14:03:25 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AsjLJ-000Bgi-D5 for dave@picks.force9.co.uk; Mon, 16 Feb 2004 14:03:25 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AsjKH-0007pq-El for rs_out@blacksheep.org; Mon, 16 Feb 2004 14:02:21 +0000 Received: from [195.92.195.175] (helo=cmailg5.svr.pol.co.uk) by post.thorcom.com with esmtp (Exim 4.14) id 1AsjKG-0007ph-Po for rsgb_lf_group@blacksheep.org; Mon, 16 Feb 2004 14:02:20 +0000 Received: from modem-6.arien.dialup.pol.co.uk ([62.136.124.134] helo=d6y6c7) by cmailg5.svr.pol.co.uk with smtp (Exim 4.14) id 1AsjKF-0000ae-T7 for rsgb_lf_group@blacksheep.org; Mon, 16 Feb 2004 14:02:20 +0000 X-Bad-Message-ID: no DNS (d6y6c7) Message-ID: <000e01c3f495$7e7977a0$867c883e@d6y6c7> From: "LAWRENCE MAYHEAD" To: rsgb_lf_group@blacksheep.org Date: Mon, 16 Feb 2004 10:41:13 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re. Timing GPS Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.7 required=5.0 tests=DATE_IN_PAST_03_06 autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Thanks for the info re. Jupiter-T GPS, I could do with an accurate source and look forward to seeing further information. 73 Laurie. From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 17272 invoked from network); 9 Feb 2004 18:12:03 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore02.plus.net with SMTP; 9 Feb 2004 18:12:03 -0000 Received: (qmail 40630 invoked from network); 9 Feb 2004 18:12:02 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 9 Feb 2004 18:11:59 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AqFt1-0009jN-8P for dave@picks.force9.co.uk; Mon, 09 Feb 2004 18:11:59 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AqFra-0000Zr-E2 for rs_out@blacksheep.org; Mon, 09 Feb 2004 18:10:30 +0000 Received: from [195.92.195.175] (helo=cmailg5.svr.pol.co.uk) by post.thorcom.com with esmtp (Exim 4.14) id 1AqFrZ-0000Zi-LZ for rsgb_lf_group@blacksheep.org; Mon, 09 Feb 2004 18:10:29 +0000 Received: from modem-97.draugluin.dialup.pol.co.uk ([62.136.158.97] helo=d6y6c7) by cmailg5.svr.pol.co.uk with smtp (Exim 4.14) id 1AqFrR-0006pg-Uy for rsgb_lf_group@blacksheep.org; Mon, 09 Feb 2004 18:10:22 +0000 X-Bad-Message-ID: no DNS (d6y6c7) Message-ID: <000801c3ef37$fbaf1120$619e883e@d6y6c7> From: "LAWRENCE MAYHEAD" To: rsgb_lf_group@blacksheep.org Date: Mon, 9 Feb 2004 18:09:34 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re. TA Content-Type: multipart/mixed; boundary="------------090305000208000403050208" X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 This is a multi-part message in MIME format. --------------090305000208000403050208 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 8bit Intermirant copy of Joe last night from 0200 until 0700 mainly "M" but short bursts of "O" see attached capture at 0425 note last N and start V on screen. 73 Laurei G3AQC. --------------090305000208000403050208 Content-Type: image/jpeg; name="VO1NA.jpg" Content-Transfer-Encoding: base64 Content-Disposition: inline; 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6hN6H6Y9AQev61tx9P6zWP1fT9T7Px8OeY2cTOCRke7y+xnGuJ9QajeXNjAsttp9xqTs4UwW jW6uqkE+oTdz2sXAU4/DJz+L7H2sj8nncppMOtpoGpTWMqFhJG1gSSZmt4o40a9Vrl7lljez +qfWUvI7i2+qvK83DDTzT9d/w/qP6P8AV9b0jz+q8vrXo1H1r6j6fxfpD6t6v6P/AGfrnoc/ 3fPC/UfqPreV/Q9L/DXqr6H1Xj9X9b0v9xHOn+jfo/ly+r8fi/Sv6G+rZrGxGaZ5il1W7eK3 0e9WzjuLm0OpyNaCDnaSyW8p4LdNecGngeNP9E/lb4U+LD3Od2B8rt5k08+W0so9Z/TGpDX1 sX53foBNQErX7Mkd19XfUPqj8Jl+qR3P1WO2eWNbWV+iYq//2Q== --------------090305000208000403050208-- From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 26542 invoked from network); 10 Feb 2004 17:53:59 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore01.plus.net with SMTP; 10 Feb 2004 17:53:59 -0000 Received: (qmail 40771 invoked from network); 10 Feb 2004 17:55:08 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 10 Feb 2004 17:55:05 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1Aqc6D-000ASd-70 for dave@picks.force9.co.uk; Tue, 10 Feb 2004 17:55:05 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Aqc5K-0005Mf-9q for rs_out@blacksheep.org; Tue, 10 Feb 2004 17:54:10 +0000 Received: from [64.136.30.74] (helo=m11.lax.untd.com) by post.thorcom.com with smtp (Exim 4.14) id 1Aqc5J-0005MW-9A for rsgb_lf_group@blacksheep.org; Tue, 10 Feb 2004 17:54:09 +0000 Received: from cookie.untd.com by cookie.untd.com for <"yokUgcxCbtTP7XLrpefewPU1KxqB4Zia/lZvPpo0kNNdKEvmJrEY6g==">; Tue, 10 Feb 2004 09:52:56 PST Received: (from riese-k3djc@juno.com) by m11.lax.untd.com (jqueuemail) id JM2XZ6YC; Tue, 10 Feb 2004 09:52:56 PST To: rsgb_lf_group@blacksheep.org Date: Tue, 10 Feb 2004 12:50:37 -0500 Message-ID: <20040210.125250.2552.1.riese-k3djc@juno.com> X-Mailer: Juno 5.0.13 MIME-Version: 1.0 X-Juno-Line-Breaks: 0,2-8,10-11,13,15,17,20-22 From: riese-k3djc@juno.com Subject: Re: LF: Timing GPS Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.3 required=5.0 tests=NO_REAL_NAME autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 On Tue, 10 Feb 2004 09:35:40 -0000 Talbot Andrew writes: > Judging by the lack of replies to this thread - there seems little > interest > here. A very great pity, as accurate GPS locked timing is the next > great > improvement we could make to LF signalling. The interest is there. There would appear to be many ways to generate/recover the GPS timing and lock up the rcv/tx oscillator but the problem on my end is inexperience. It sounds like the folk that would really like to develop this signaling type keep preaching to the converted. I would like to see some info "for Dummies " a How to do it article written for those that dont have a proper background to fully understand it . My 10 gig white box conversation works well but I am looking for the stability to use it on the weak signal modes developed on LF. A system that would work with LF and 10 gig would keep me out of remodeling the dining room. Bob K3DJC From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 34852 invoked from network); 18 Feb 2004 22:09:31 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore03.plus.net with SMTP; 18 Feb 2004 22:09:31 -0000 Received: (qmail 37248 invoked from network); 18 Feb 2004 22:09:31 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 X-Priority: 3 X-MSMail-Priority: Normal Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 18 Feb 2004 22:09:30 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AtZsn-0009MV-UA for dave@picks.force9.co.uk; Wed, 18 Feb 2004 22:09:30 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AtZs6-0002Il-Ml for rs_out@blacksheep.org; Wed, 18 Feb 2004 22:08:46 +0000 Received: from [134.58.240.46] (helo=spoetnik.kulnet.kuleuven.ac.be) by post.thorcom.com with esmtp (Exim 4.14) id 1AtZs6-0002IP-8t for rsgb_lf_group@blacksheep.org; Wed, 18 Feb 2004 22:08:46 +0000 Received: from localhost (localhost [127.0.0.1]) by spoetnik.kulnet.kuleuven.ac.be (Postfix) with ESMTP id 129093451B for ; Wed, 18 Feb 2004 23:08:16 +0100 (CET) Received: from antonius.kulnet.kuleuven.ac.be (antonius.kulnet.kuleuven.ac.be [134.58.240.73]) by spoetnik.kulnet.kuleuven.ac.be (Postfix) with ESMTP id 918E634490 for ; Wed, 18 Feb 2004 23:08:13 +0100 (CET) Received: from localhost (webmail2.cc.kuleuven.ac.be [134.58.242.4]) by antonius.kulnet.kuleuven.ac.be (Postfix) with ESMTP id 814DA4C0D1 for ; Wed, 18 Feb 2004 23:08:13 +0100 (CET) Received: from 10-32.241.81.adsl.skynet.be (10-32.241.81.adsl.skynet.be [81.241.32.10]) by webmail2.kuleuven.be (IMP) with HTTP for ; Wed, 18 Feb 2004 23:08:13 +0100 Message-ID: <1077142093.4033e24d792c1@webmail2.kuleuven.be> Date: Wed, 18 Feb 2004 23:08:13 +0100 From: "Rik Strobbe" To: rsgb_lf_group@blacksheep.org References: <7D653C9C42F5D411A27C00508BF8803D01A9F415@mail.dstl.gov.uk> <4031FB0A.8040706@usa.net> <1AtSHt-0jd19s0@fwd01.sul.t-online.com> <002001c3f63b$1307fda0$bb2765d5@oemcomputer> <4033DA60.8070906@usa.net> In-reply-to: <4033DA60.8070906@usa.net> MIME-Version: 1.0 User-Agent: Internet Messaging Program (IMP) 3.2-cvs X-Originating-IP: 81.241.32.10 X-Virus-Scanned: by KULeuven Antivirus Cluster Subject: Re: LF: Re: Timing GPS Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 > The -300C is easy... given that the molecular Brownian motion slows > down reaching 0 Kelvin, stopping just at that temperature, to go > below you just need to restart the motion of the molecules backward > in time... Alberto, Wouldn't that mean that you had -300C yesterday ? Why don't take one of these super-refrigerator that cool down to a few Kelvin and put an ordenary -30C refrigerator inside ? Rik ON7YD From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 54699 invoked from network); 18 Feb 2004 16:29:53 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore02.plus.net with SMTP; 18 Feb 2004 16:29:53 -0000 Received: (qmail 93081 invoked from network); 18 Feb 2004 16:29:52 -0000 Content-Transfer-Encoding: 8bit X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 X-Priority: 3 X-MSMail-Priority: Normal Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 18 Feb 2004 16:29:51 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AtUa7-000Nyh-HZ for dave@picks.force9.co.uk; Wed, 18 Feb 2004 16:29:51 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AtUZU-0000gY-Bi for rs_out@blacksheep.org; Wed, 18 Feb 2004 16:29:12 +0000 Received: from [134.58.240.45] (helo=thumbler.kulnet.kuleuven.ac.be) by post.thorcom.com with esmtp (Exim 4.14) id 1AtUZT-0000gP-HC for rsgb_lf_group@blacksheep.org; Wed, 18 Feb 2004 16:29:11 +0000 Received: from localhost (localhost [127.0.0.1]) by thumbler.kulnet.kuleuven.ac.be (Postfix) with ESMTP id 526AF13792D for ; Wed, 18 Feb 2004 17:28:41 +0100 (CET) Received: from octavianus.kulnet.kuleuven.ac.be (octavianus.kulnet.kuleuven.ac.be [134.58.240.71]) by thumbler.kulnet.kuleuven.ac.be (Postfix) with ESMTP id D13D7137A33 for ; Wed, 18 Feb 2004 17:28:40 +0100 (CET) X-Fake-Domain: dell-rik.fys.kuleuven.ac.be Received: from dell-rik.fys.kuleuven.ac.be (pc-10-33-165-177.fys.kuleuven.ac.be [10.33.165.177]) by octavianus.kulnet.kuleuven.ac.be (Postfix) with ESMTP id B50DDAEF47 for ; Wed, 18 Feb 2004 17:28:40 +0100 (CET) Message-ID: <5.1.0.14.0.20040218173020.027badb8@u0019445.kuleuven.be> X-Sender: u0019445@u0019445.kuleuven.be X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Wed, 18 Feb 2004 17:32:10 +0100 To: rsgb_lf_group@blacksheep.org From: "Rik Strobbe" In-reply-to: <1AtSHt-0jd19s0@fwd01.sul.t-online.com> References: <7D653C9C42F5D411A27C00508BF8803D01A9F415@mail.dstl.gov.uk> <4031FB0A.8040706@usa.net> MIME-Version: 1.0 X-Virus-Scanned: by KULeuven Antivirus Cluster Subject: Re: LF: Re:: Timing GPS Content-Type: text/plain; charset=us-ascii; format=flowed X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 >Operation Temperature range: -300C~+700C Hi Uwe, How did they test it at -300C ? I have some low temperature physic guys next door, they will be very interested ! 73, Rik ON7YD From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 39796 invoked from network); 10 Feb 2004 13:57:29 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore04.plus.net with SMTP; 10 Feb 2004 13:57:29 -0000 Received: (qmail 13304 invoked from network); 10 Feb 2004 13:57:29 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 X-Priority: 3 X-MSMail-Priority: Normal Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 10 Feb 2004 13:57:28 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AqYOF-0003KV-Q6 for dave@picks.force9.co.uk; Tue, 10 Feb 2004 13:57:27 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AqYND-00053Z-KK for rs_out@blacksheep.org; Tue, 10 Feb 2004 13:56:23 +0000 Received: from [134.58.240.41] (helo=nibbel.kulnet.kuleuven.ac.be) by post.thorcom.com with esmtp (Exim 4.14) id 1AqYNC-00053F-R6 for rsgb_lf_group@blacksheep.org; Tue, 10 Feb 2004 13:56:22 +0000 Received: from localhost (localhost [127.0.0.1]) by nibbel.kulnet.kuleuven.ac.be (Postfix) with ESMTP id A80564B95D for ; Tue, 10 Feb 2004 14:55:52 +0100 (CET) Received: from antonius.kulnet.kuleuven.ac.be (antonius.kulnet.kuleuven.ac.be [134.58.240.73]) by nibbel.kulnet.kuleuven.ac.be (Postfix) with ESMTP id EA9704B4F1 for ; Tue, 10 Feb 2004 14:55:51 +0100 (CET) X-Fake-Domain: dell-rik.fys.kuleuven.ac.be Received: from dell-rik.fys.kuleuven.ac.be (pc-10-33-165-177.fys.kuleuven.ac.be [10.33.165.177]) by antonius.kulnet.kuleuven.ac.be (Postfix) with ESMTP id 2E6644C0D1 for ; Tue, 10 Feb 2004 14:55:49 +0100 (CET) Message-ID: <5.1.0.14.0.20040210141039.03527e98@u0019445.kuleuven.be> X-Sender: u0019445@u0019445.kuleuven.be X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Tue, 10 Feb 2004 14:58:58 +0100 To: rsgb_lf_group@blacksheep.org From: "Rik Strobbe" In-reply-to: <11d.2b02a263.2d5a2ce2@aol.com> MIME-Version: 1.0 X-Virus-Scanned: by KULeuven Antivirus Cluster Subject: Re: LF: Timing GPS Content-Type: text/html; charset=windows-1252 X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=HTML_MESSAGE autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Content-transfer-encoding: 8bit
Even FFT-based tools like ARGO and JASON, amazing as they are
in their present form, could be better optimized if the receiving computer knew
exactly when each bit was due to start.

Suggestion : "synchronized" JASON-like mode at 30 seconds dotlenght
  • Data rate would be 1 character per second. Sounds slow, but taking into account that we mainly transmit callsigns in QRSS the average character takes about 10 dots so this mode would be as fast as QRSS at 6 sec/dot (or half the data-rate of the traditional QRSS3)
  • If any character would always start exactly at the full minute (lower 'nibble' first 30 sec., higher 'nibble' last 30 sec.) and we stick to the character-set of JASON (64 characters) only 6 bits are needed (vs. 8 bits for JASON). Thus only 3 bits per 'nibble' are needed or only 9 'channels' (vs. 17 for JASON).
  • Some timing ('synchronisation') would be required, but an error up to 0.1 seconds can be easily tolerated (see below)
  • At 30 sec/dot the channels can be separated as little as 0.1Hz apart, so the whole signal would fit in a 1Hz window (vs. 4.3Hz for Jason). This small bandwidth would make it easier to keep away from LORAN lines.
  • A typical QRSS-like QSO would take only 1 hour
  • If LORAN lines (or other carriers) within the 1Hz bandwidth can be avoided SNR would be almost as good as QRSS30, but at a 5 times faster data-rate.
  • Or otherwise said : it would allow a transatlantic QSO within 1 hour, using only moderate power levels. Recent test have shown that 100mW ERP signal can cross the pond regulary in QRSS30, when condx are right it might work with even far less ERP.
At a samplerate of 4410Hz (22050Hz / 5) and an FFT-size of 131072 points (2exp17) would give a convenient FFT-duration of 29.72 seconds, so if the FFT starts at 0.14 seconds after each full 30 seconds it will end 0.14 seconds before the end of the 30 seconds period, allowing some flexibility in the timing.

73, Rik  ON7YD From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 25460 invoked from network); 3 Feb 2004 20:36:08 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore01.plus.net with SMTP; 3 Feb 2004 20:36:08 -0000 Received: (qmail 83447 invoked from network); 3 Feb 2004 20:36:05 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 X-Priority: 3 X-MSMail-Priority: Normal Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 3 Feb 2004 20:36:04 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1Ao7HA-000LZc-G7 for dave@picks.force9.co.uk; Tue, 03 Feb 2004 20:36:04 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Ao7GG-0005e7-KF for rs_out@blacksheep.org; Tue, 03 Feb 2004 20:35:08 +0000 Received: from [134.58.240.42] (helo=rusty.kulnet.kuleuven.ac.be) by post.thorcom.com with esmtp (Exim 4.14) id 1Ao7GF-0005c1-FM for rsgb_lf_group@blacksheep.org; Tue, 03 Feb 2004 20:35:07 +0000 Received: from localhost (localhost [127.0.0.1]) by rusty.kulnet.kuleuven.ac.be (Postfix) with ESMTP id 3E7121D792E for ; Tue, 3 Feb 2004 21:34:37 +0100 (CET) Received: from octavianus.kulnet.kuleuven.ac.be (octavianus.kulnet.kuleuven.ac.be [134.58.240.71]) by rusty.kulnet.kuleuven.ac.be (Postfix) with ESMTP id C88D81D77DC for ; Tue, 3 Feb 2004 21:34:36 +0100 (CET) Received: from localhost (webmail2.cc.kuleuven.ac.be [134.58.242.4]) by octavianus.kulnet.kuleuven.ac.be (Postfix) with ESMTP id BCDAEAEF49 for ; Tue, 3 Feb 2004 21:34:36 +0100 (CET) Received: from 9.33-201-80.adsl.skynet.be (9.33-201-80.adsl.skynet.be [80.201.33.9]) by webmail2.kuleuven.be (IMP) with HTTP for ; Tue, 3 Feb 2004 21:34:36 +0100 Message-ID: <1075840476.402005dcb4653@webmail2.kuleuven.be> Date: Tue, 3 Feb 2004 21:34:36 +0100 From: "Rik Strobbe" To: rsgb_lf_group@blacksheep.org References: In-reply-to: MIME-Version: 1.0 User-Agent: Internet Messaging Program (IMP) 3.2-cvs X-Originating-IP: 80.201.33.9 X-Virus-Scanned: by KULeuven Antivirus Cluster Subject: Re: LF: RE: Re: Re: G0MRF 300w Tx & DDS VFO Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Hello Gary, > Thanks for the advise, but I did realise that the input is x2 ie. 274 > Khz, ... based on the fact that you need the double frequency I assume that you want to drive a class-D PA push-pull amplifier. If that is the case there is no need to get a nice sine (through a LPF and bufferamplifier), most convenient is to pick up the 274kHz signal somewhere at TLL or CMOS level. 73, Rik ON7YD From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 4969 invoked from network); 29 Feb 2004 17:13:58 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore03.plus.net with SMTP; 29 Feb 2004 17:13:58 -0000 Received: (qmail 86939 invoked from network); 29 Feb 2004 17:13:58 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 29 Feb 2004 17:13:57 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AxUVo-000MSr-VG for dave@picks.force9.co.uk; Sun, 29 Feb 2004 17:13:57 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AxUVD-0001KV-3E for rs_out@blacksheep.org; Sun, 29 Feb 2004 17:13:19 +0000 Received: from [62.183.66.246] (helo=mail.kuban.ru) by post.thorcom.com with esmtp (Exim 4.14) id 1AxUVC-0001KM-Ft for rsgb_lf_group@blacksheep.org; Sun, 29 Feb 2004 17:13:18 +0000 X-Fake-Domain: sam3 Received: from sam3 (62.183.41.10.dsl.kuban.ru [62.183.41.10]) by mail.kuban.ru (8.9.1/8.9.1) with ESMTP id i1THDA3m049072 for ; Sun, 29 Feb 2004 20:13:11 +0300 (MSK) Date: Sun, 29 Feb 2004 20:13:45 +0300 From: "rn6bn" X-Suspect-Bulk-Mailer: The Bat! X-Mailer: The Bat! (v1.46d) Personal X-Priority: 3 Message-ID: <17986813968.20040229201345@73.ru> To: rsgb_lf_group@blacksheep.org In-reply-to: <1701579270.20040229174811@t-online.de> References: <6.0.1.1.2.20040229131137.027eb800@POP3.freeler.nl> <1701579270.20040229174811@t-online.de> MIME-Version: 1.0 Subject: Re: LF: VO1NA beaconing Content-Type: multipart/mixed; boundary="------------060304070602090102040105" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 This is a multi-part message in MIME format. --------------060304070602090102040105 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 8bit test reflector !? :( What size of the file possible in this forum? Sam, rn6bn mailto:rn6bn@73.ru --------------060304070602090102040105 Content-Type: image/jpeg; name="small_picture.jpg" Content-Transfer-Encoding: base64 Content-Disposition: inline; filename="small_picture.jpg" /9j/4AAQSkZJRgABAQEBLAEsAAD/2wBDAAgGBgcGBQgHBwcJCQgKDBQNDAsLDBkSEw8UHRof Hh0aHBwgJC4nICIsIxwcKDcpLDAxNDQ0Hyc5PTgyPC4zNDL/2wBDAQkJCQwLDBgNDRgyIRwh MjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjL/wAAR CAAMAJYDASIAAhEBAxEB/8QAHwAAAQUBAQEBAQEAAAAAAAAAAAECAwQFBgcICQoL/8QAtRAA AgEDAwIEAwUFBAQAAAF9AQIDAAQRBRIhMUEGE1FhByJxFDKBkaEII0KxwRVS0fAkM2JyggkK FhcYGRolJicoKSo0NTY3ODk6Q0RFRkdISUpTVFVWV1hZWmNkZWZnaGlqc3R1dnd4eXqDhIWG h4iJipKTlJWWl5iZmqKjpKWmp6ipqrKztLW2t7i5usLDxMXGx8jJytLT1NXW19jZ2uHi4+Tl 5ufo6erx8vP09fb3+Pn6/8QAHwEAAwEBAQEBAQEBAQAAAAAAAAECAwQFBgcICQoL/8QAtREA AgECBAQDBAcFBAQAAQJ3AAECAxEEBSExBhJBUQdhcRMiMoEIFEKRobHBCSMzUvAVYnLRChYk NOEl8RcYGRomJygpKjU2Nzg5OkNERUZHSElKU1RVVldYWVpjZGVmZ2hpanN0dXZ3eHl6goOE hYaHiImKkpOUlZaXmJmaoqOkpaanqKmqsrO0tba3uLm6wsPExcbHyMnK0tPU1dbX2Nna4uPk 5ebn6Onq8vP09fb3+Pn6/9oADAMBAAIRAxEAPwDxGCGSdyiqXQcZCjj86fdW6wKP9IhduhCH p9ccVXSV0JYHoeARkVNGTcmVpeSBnoK9e6auYst7BbaYGZonMh/gfkU+10qG4sXuXuYY8HhH JDH6etZmwfZBIRk5xio0kYxlew6U3NaJoLHTeH9EttSF2XuIk8pNyl2INZzaIpP/ACEbMN1I Z26fXFQ6fczoH8uZ4uMHy2K5+vrVRczS4Ynk8kd6ubXLsCvcsXFjHaupF7DP7oTgfpUClxNk YB9RippIhbAGNjzwcgf4VFPIY5CqhcY9KyskroZoWunJfTBGu4LY/wAUlzIFA+gAqaXTY7ZW UavpzBDwEkJ3e/ArDZiMDjnrxSqxaEg4woyOKSqKOyCxYEImm+9GqZxvGQK2F0SKKBLltX06 Q/8APEXHz4/EVgROyD5TjdwcVaaBAgPPAyRnrVxklZtCZf1Szs0VfsF2Zl25cNIuFPp71Vtr Mzpn7TbQrj5g8gBP4VRaZm24wv8Auipo3LXC7gDtHcdau6b2AtQ20CxyyG5gyOPLRvvfnVbz njHQKnYE/wCRUcsrfaAwwOcYAGKZMcSlh1zUSnpZAN2s7E8nPetr+wfK05b0ajYscZEAk/ef kRWMXZpAhPB9KlRzvbgfL04pQSQMQyTK5YZUnuq0VZQhPmRQuew6UU3G/UZ//9k= --------------060304070602090102040105-- From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 73476 invoked from network); 25 Feb 2004 18:27:39 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore02.plus.net with SMTP; 25 Feb 2004 18:27:39 -0000 Received: (qmail 94230 invoked from network); 25 Feb 2004 18:27:39 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 25 Feb 2004 18:27:36 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1Aw3ku-000O6D-8f for dave@picks.force9.co.uk; Wed, 25 Feb 2004 18:27:36 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Aw3jc-0002ho-4v for rs_out@blacksheep.org; Wed, 25 Feb 2004 18:26:16 +0000 Received: from [62.183.66.246] (helo=mail.kuban.ru) by post.thorcom.com with esmtp (Exim 4.14) id 1Aw3jZ-0002hf-6F for rsgb_lf_group@blacksheep.org; Wed, 25 Feb 2004 18:26:13 +0000 X-Fake-Domain: sam3 Received: from sam3 (62.183.41.10.dsl.kuban.ru [62.183.41.10]) by mail.kuban.ru (8.9.1/8.9.1) with ESMTP id i1PIQ03m046884 for ; Wed, 25 Feb 2004 21:26:05 +0300 (MSK) Date: Wed, 25 Feb 2004 21:26:33 +0300 From: "rn6bn" X-Suspect-Bulk-Mailer: The Bat! X-Mailer: The Bat! (v1.46d) Personal X-Priority: 3 Message-ID: <1926266703.20040225212633@73.ru> To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 Subject: LF: VO1NA beaconing Content-Type: multipart/mixed; boundary="------------020806030305090803000405" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 This is a multi-part message in MIME format. --------------020806030305090803000405 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 8bit Hello rsgb, I think this VO1NA. 25/02/2004 -- Best regards, Sam, rn6bn mailto:rn6bn@73.ru --------------020806030305090803000405 Content-Type: image/jpeg; name="vo1na_in_KN95.jpg" 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cy/8BooobAlMzRumxVUbegHFLuG5G2Lknnrz+tFFFwLt4otpVeD937L0/WqLXLyK28K27rnN FFXdgI8hEKd6ZCqpPkKD9aKKi/vAXWiWNm2DafUf5xUDzsNi4XG7oRn+dFFXdiLdxGSyfvZP zqCS2TzlOW+brz1ooqbjGSsyyIQcfL/dH+FVH5Y9s9cUUUrsCYSvHD5YY7d3TNLDMYN21Eb/ AHhmiis+ZgW4IUnMjOMMOjDginCJNxRhuBXknk0UVtcQ0qdqqJHAK84OM/lVfaYx5YYlM/dI BH8qKKLjHSosty25RgDgAYx+VQuxW98pcqvqCc/nRRWPM77gTPcT287iKZ1GNv3s8fjURupY vLlVvmbrnkH8OlFFbXYEk7+YhLKv3ulWGto1iUrlTjOR60UVnzPuBFZ7mdJS7716HdUU7NHc NPGSkm7qpoorS7AYtzLLc+WzYDt8xHBP41eREieRERR6NjlfoaKKLu4FZncuULZXG7BUdfXp VqSAQwJcq7l9v8Rz/wDXoop3YFGXJk3Eksep70xGwcYGfXvRRWHM+4BHIUkYgDI6E9RTWcyM GbknqaKKOZ9wNy2iV0XfyV6E9ayVywZS7439AaKK3uxDPNZiAcYZecd6sLNKqLbiQ+UW5U4P 86KKV2BK3zRK5Az6Acfl0qRXPls38W372eaKKq7ApsC0sRJ++3PA/wAKWaIZDEkk9SeaKK5+ Z9xjWRBFE4XB9ulOmkDQptjjj+b+AYoorS7AmwXG5mJO3rRHAkrRIxIU9QOKKKu7ET3FjBEk hVeQ3BIBqhcXDzxK743K20EccenFFFXb3RktshD+YrureqnFQ5zcqWJbJ53HOfzoorG4Ed1K 0dwxXHHTIzio/tDOc7UU53fKMc0UVnzPuBOk8s4Ad2wOmDirqosiRxkBc9WVQCfxoora7EMt Y1WTaQGDNyGAOapXUjLcTMDghuMUUVnzPl3GPs181ZN5Y4HrVieVYrKKRIYg56nbRRWkH7oC woHiTnacclcDNFFFcdST5gR//9k= --------------020806030305090803000405-- From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 41424 invoked from network); 20 Feb 2004 21:21:51 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore02.plus.net with SMTP; 20 Feb 2004 21:21:51 -0000 Received: (qmail 28841 invoked from network); 20 Feb 2004 21:21:50 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 20 Feb 2004 21:21:44 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AuI5g-0007K9-Je for dave@picks.force9.co.uk; Fri, 20 Feb 2004 21:21:44 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AuI4l-0005XV-B9 for rs_out@blacksheep.org; Fri, 20 Feb 2004 21:20:47 +0000 Received: from [208.181.178.12] (helo=joseph.ncoldns.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AuI4i-0005XM-VS for rsgb_lf_group@blacksheep.org; Fri, 20 Feb 2004 21:20:45 +0000 X-Fake-Domain: jsm Received: from jsm (unknown [209.121.18.17]) by joseph.ncoldns.com (Postfix) with SMTP id 86E7BBA7A0 for ; Fri, 20 Feb 2004 13:04:24 -0800 (PST) X-Bad-Message-ID: no DNS (jsm) Message-ID: <000b01c3f7f4$c3841500$111279d1@jsm> From: "Steve McDonald" To: rsgb_lf_group@blacksheep.org References: <000701c3f7a9$3efe6920$6507a8c0@Main> <002901c3f7e4$ef6b59e0$a71279d1@jsm> <002d01c3f7ee$7dba62f0$1f00a8c0@dellboy> Date: Fri, 20 Feb 2004 13:01:50 -0800 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2615.200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: Re: LF: Antenna Insulators Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 > Dear all. > > I don't like pipe because water collects inside and it's amazing how far an > arc can track down a damp path! > If you do use it, seal the ends with silicone sealant (applied in a dry > place), that seems to work. > > Dave G3YXM. Thanks Dave. I imagine a small drain hole in the bottom would help but by the time you get it raised up, it might not be on the bottom any longer! Steve From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 51923 invoked from network); 20 Feb 2004 19:12:40 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore03.plus.net with SMTP; 20 Feb 2004 19:12:40 -0000 Received: (qmail 90124 invoked from network); 20 Feb 2004 19:12:39 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 20 Feb 2004 19:12:32 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AuG4d-000M56-RR for dave@picks.force9.co.uk; Fri, 20 Feb 2004 19:12:31 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AuG3k-0001C9-2Z for rs_out@blacksheep.org; Fri, 20 Feb 2004 19:11:36 +0000 Received: from [208.181.178.12] (helo=joseph.ncoldns.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AuG3h-00012W-Al for rsgb_lf_group@blacksheep.org; Fri, 20 Feb 2004 19:11:33 +0000 X-Fake-Domain: jsm Received: from jsm (unknown [209.121.18.167]) by joseph.ncoldns.com (Postfix) with SMTP id CCB1FBA1D1 for ; Fri, 20 Feb 2004 11:11:05 -0800 (PST) X-Bad-Message-ID: no DNS (jsm) Message-ID: <002901c3f7e4$ef6b59e0$a71279d1@jsm> From: "Steve McDonald" To: rsgb_lf_group@blacksheep.org References: <000701c3f7a9$3efe6920$6507a8c0@Main> Date: Fri, 20 Feb 2004 11:08:31 -0800 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2615.200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Antenna Insulators Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Has anyone had success using white PVC pipe (say ~ 1.5" dia) for insulators? I am wondering if a 12 -18" piece at the voltage ends of my flatop would be enough to prevent any flash-over? Steve / VE7SL From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 37382 invoked from network); 25 Feb 2004 07:40:22 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore01.plus.net with SMTP; 25 Feb 2004 07:40:22 -0000 Received: (qmail 76982 invoked from network); 25 Feb 2004 07:44:03 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 25 Feb 2004 07:43:59 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1Avti3-000JnZ-Av for dave@picks.force9.co.uk; Wed, 25 Feb 2004 07:43:59 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Avtgo-0001Rc-0h for rs_out@blacksheep.org; Wed, 25 Feb 2004 07:42:42 +0000 Received: from [165.254.4.18] (helo=mail.mcf.com) by post.thorcom.com with esmtp (Exim 4.14) id 1Avtgm-0001RT-PO for rsgb_lf_group@blacksheep.org; Wed, 25 Feb 2004 07:42:40 +0000 X-Fake-Domain: w2ksn Received: from w2ksn (192.55.122.104) by mail.mcf.com with ESMTP (Eudora Internet Mail Server 3.2.2) for ; Wed, 25 Feb 2004 02:42:40 -0500 X-Bad-Message-ID: no DNS (w2ksn) Message-ID: <001f01c3fb72$f5156750$687a37c0@w2ksn> From: "Stewart Nelson" To: rsgb_lf_group@blacksheep.org References: <002601c3f93e$478b35a0$6507a8c0@Main> Date: Tue, 24 Feb 2004 23:42:44 -0800 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1158 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: WOLF development Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hi Alan, Sorry for the slow reply; I was waiting for responses to see what hardware locking ability potential users already had. All but one had the ability to drive their receiver's reference from a GPS-derived frequency standard, so R2 is on the back burner for now, anyhow. The narrow filter reduces the number of "visible" lines, and so degrades the S/N of the locking signal, because it is mixed with band noise and QRM. Careful level adjustment would minimize the problem, but there are many constraints: The impulse resulting from the 1 pps excitation would have to be much larger than the general noise level, but not clip the A/D, while the noise (with buried desired signal) level would still need to be high enough that A/D quantizing noise and other errors did not degrade the signal too much. Your keyed oscillator idea is interesting, but it appears to introduce another unknown. For example, if the 136 kHz oscillator drifted up 0.01 Hz, it would affect the audio in the same way as the receiver LO drifting down 0.01 Hz. One way to resolve this ambiguity would be to digitally divide the 136 kHz into the audio range, and feed that into the sound card, too. Do you have a simpler solution? 73, Stewart ----- Original Message ----- From: "Alan Melia" To: "LF-Group" Sent: Sunday, February 22, 2004 4:08 AM Subject: LF: WOLF development > Hi Stewart, with reference to R2, I suppose the injection of the 1pps into > the RX input with provide some "pseudo-Loran" lines for frequency locking. > If the 1pps was used to "key" a simple 136khz oscillator, this would produce > a comb of 1Hz spaced lines in the right area all locked to the GPS. This > would allow easy control of their level, which is often a problem when > putting a calibration signal up even on QRSS. This is a technique of > frequency synthesis used back in the old days when PLLs occupied a couple of > racks and consumed a few kW. > > The necessity to use an SSB filter width might be a problem in Europe where > there are many strong signals around. I presume that the rise-time with a > narrower filter is the problem extracting accurate enough timing?? Having > got frequency sync data at RF could timing data be put into the soundcard at > audio....possibly on the other channel? > > Great ....I look forward to seeing the final solution. > > Cheers de Alan G3NYK > alan.melia@btinternet.com > > > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 97425 invoked from network); 22 Feb 2004 08:21:28 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore04.plus.net with SMTP; 22 Feb 2004 08:21:28 -0000 Received: (qmail 61835 invoked from network); 22 Feb 2004 08:21:27 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 22 Feb 2004 08:21:24 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1Auorc-000Fxx-00 for dave@picks.force9.co.uk; Sun, 22 Feb 2004 08:21:24 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Auor0-0007Id-JD for rs_out@blacksheep.org; Sun, 22 Feb 2004 08:20:46 +0000 Received: from [165.254.4.18] (helo=mail.mcf.com) by post.thorcom.com with esmtp (Exim 4.14) id 1Auoqy-0007IU-Sn for rsgb_lf_group@blacksheep.org; Sun, 22 Feb 2004 08:20:45 +0000 X-Fake-Domain: w2ksn Received: from w2ksn (192.55.122.104) by mail.mcf.com with ESMTP (Eudora Internet Mail Server 3.2.2); Sun, 22 Feb 2004 03:20:44 -0500 X-Bad-Message-ID: no DNS (w2ksn) Message-ID: <001101c3f91c$82ba8c10$687a37c0@w2ksn> From: "Stewart Nelson" To: "LowFER reflector" , rsgb_lf_group@blacksheep.org Date: Sun, 22 Feb 2004 00:18:52 -0800 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1158 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: feedback requested for new WOLF Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Hi all, I am working on a new version of WOLF, which will feature frequency and message timing synchronized to UTC, as well as real-time transmission and reception via a sound card. The raw data rate is slowed to one bit per second, to reduce bandwidth requirements and to improve tolerance to propagation delay uncertainties. There are many different ways to achieve synchronization, and I hope to eventually implement a variety of transmission and reception options. However, adding a new method entails construction of a suitable setup for testing, as well as substantial coding effort. So that the first releases will be usable by many operators, I'd like to hear which of these modes would work at your station, with hardware that you already have, or would be willing to build. Also, please suggest any other methods that you feel would be effective for your station. Reception modes: R1. This would use LORAN "QRM" present in the received signal for both frequency and timing lock. The obvious advantage is that no special hardware is needed. However, it requires that the LORAN sidebands be strong enough to show visible lines when receiving QRSS30. In addition, it is necessary to use a wide (SSB) filter, so it won't work if there is a strong interfering carrier that demands a narrow filter. If the distance to your closest LORAN station is such that groundwave isn't always dominant, then this method will not be as accurate as one using GPS. R2. The 1 pps signal from a GPS receiver is coupled into the LF receiver antenna input, and used for both frequency and timing lock. This also requires use of an SSB filter. R3. Your receiver LO is locked to GPS by external hardware means. For example, you have an amateur transceiver that derives all frequencies from a single reference, and you feed that from your Z3801A. Or, your Z3801A feeds a DDS or divider that provides the LO signal to your homebrew LF receiver. Then, you feed a 1 pps signal into the other sound card channel, providing a sample rate and time reference. Transmission modes: T1. You generate a precise carrier frequency by any suitable means, feeding one input of an XOR gate. WOLF would key a tone on or off, corresponding to the phase desired. You would rectify and filter the tone signal, feeding the result to the other XOR input. The gate output then feeds the transmit output chain. A 1 pps signal is used as a timing reference only. Methods T2-T5 below all involve the use of an upconversion mixer, combining the sound card output at e.g. 18 kHz with an LO to generate the desired Tx frequency. The sound card frequency would be adjustable in fine steps for tuning, so the LO could be a simple fixed divider from a suitable reference. Sound card output would be available on both channels in quadrature, to allow use of a simple image reject mixer if desired. It may also be possible to perform the upconversion with an SSB transceiver, modified to allow LF transmission. T2. The Tx LO is precise. A 1 pps signal provides a sample rate and timing reference. T3. The Tx LO (in addition to driving the mixer) is divided by 10 and the result fed to one sound card input, with 1 pps on the other. WOLF would servo the audio output to compensate for LO errors. This setup needs manual switching or additional hardware to change from Tx to Rx. T4. The Tx LO is generated by a DDS or divider driven from your sound card's time base oscillator. A 1 pps signal provides sample rate and timing reference, and allows WOLF to compensate for LO errors. T5. The Tx LO, or the final carrier output, is monitored with an LF receiver that is also fed with a 1 pps signal. One needs to ensure that the Tx signal does not swamp the 1 pps. In methods T6-T7 below, WOLF generates a submultiple of the desired output, e.g. 18.5 kHz for Tx on 185 kHz. There are various ways to multiply the result. A 1 pps signal is used to keep the output on track. These methods are likely to produce highly impure spectra, so they are probably unsuitable for high power operation. T6. The carrier is generated by a PLL. For example, a 185 kHz LC VCO is divided by 10 and combined with the sound card output in a mixer. The result is filtered and used to control the VCO. T7. A frequency multiplier, or series of frequency multipliers, generates the desired carrier. Except for T5, one could replace the 1 pps signal with an LF receiver tuned to ~100 kHz. This would permit transmission without a GPS receiver, although it requires that your transmitter not interfere with LORAN reception on 100 kHz. In the case of T3, T4, T6, or T7, a precise oscillator is not needed. If you have a reasonably precise frequency source, e.g. rubidium, but no GPS receiver, then you could use LORAN as a timing reference with T1 or T2. Please refer to the LORAN locked transmit modes as T1A, etc. As usual, I've left out lots of details, so any questions or comments are welcome. 73, Stewart KK7KA From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 58124 invoked from network); 18 Feb 2004 08:18:30 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore03.plus.net with SMTP; 18 Feb 2004 08:18:30 -0000 Content-Transfer-Encoding: 8bit Received: (qmail 70014 invoked from network); 18 Feb 2004 08:18:29 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 18 Feb 2004 08:18:28 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AtMua-000I0I-Mx for dave@picks.force9.co.uk; Wed, 18 Feb 2004 08:18:28 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AtMu0-0002c8-Fd for rs_out@blacksheep.org; Wed, 18 Feb 2004 08:17:52 +0000 Received: from [192.5.29.49] (helo=relay.dstl.gov.uk) by post.thorcom.com with smtp (Exim 4.14) id 1AtMtz-0002bw-VE for rsgb_lf_group@blacksheep.org; Wed, 18 Feb 2004 08:17:52 +0000 Received: (qmail 5403 invoked from network); 18 Feb 2004 08:17:49 +0000 X-Fake-Domain: unknown Received: from unknown (HELO warlock.dstl.gov.uk) (192.5.29.10) by relay.dera.gov.uk with SMTP; 18 Feb 2004 08:17:49 +0000 Message-ID: <7D653C9C42F5D411A27C00508BF8803D01A9F437@mail.dstl.gov.uk> From: "Talbot Andrew" To: rsgb_lf_group@blacksheep.org Date: Wed, 18 Feb 2004 08:17:44 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2657.72) Subject: RE: LF: Re: Timing GPS (apologies) Content-Type: text/plain; charset=iso-8859-1; format=flowed X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Sorry all - its farcical I did just the same thing! Andy 'JNT -----Original Message----- From: WarmSpgs@aol.com [mailto:WarmSpgs@aol.com] Sent: 2004 February 17 20:44 To: rsgb_lf_group@blacksheep.org Subject: Re: LF: Re: Timing GPS (apologies) Sorry, group. I meant to send my request directly to Andy. John "This e-mail is intended for the recipient only. If you are not the intended recipient you must not use, disclose, distribute, copy, print, or rely upon this e-mail. If an addressing or transmission error has misdirected this e-mail, please notify the author by replying to this e-mail." "Recipients should note that all e-mail traffic on MOD systems is subject to monitoring and auditing." From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 10834 invoked from network); 18 Feb 2004 08:12:51 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore04.plus.net with SMTP; 18 Feb 2004 08:12:51 -0000 Content-Transfer-Encoding: 8bit Received: (qmail 5972 invoked from network); 18 Feb 2004 08:12:51 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 18 Feb 2004 08:12:50 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AtMp8-0001RE-2V for dave@picks.force9.co.uk; Wed, 18 Feb 2004 08:12:50 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AtMoF-0002Q4-2H for rs_out@blacksheep.org; Wed, 18 Feb 2004 08:11:55 +0000 Received: from [192.5.29.49] (helo=relay.dstl.gov.uk) by post.thorcom.com with smtp (Exim 4.14) id 1AtMoE-0002Pv-CC for rsgb_lf_group@blacksheep.org; Wed, 18 Feb 2004 08:11:54 +0000 Received: (qmail 2722 invoked from network); 18 Feb 2004 08:11:50 +0000 X-Fake-Domain: unknown Received: from unknown (HELO warlock.dstl.gov.uk) (192.5.29.10) by relay.dera.gov.uk with SMTP; 18 Feb 2004 08:11:50 +0000 Message-ID: <7D653C9C42F5D411A27C00508BF8803D01A9F436@mail.dstl.gov.uk> From: "Talbot Andrew" To: rsgb_lf_group@blacksheep.org Date: Wed, 18 Feb 2004 08:11:46 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2657.72) Subject: RE: LF: Re: Timing GPS (apologies) Content-Type: text/plain; charset=iso-8859-1; format=flowed X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Re your original pst to the group - Glad its of some use, yes print in the Lowdown with pleasure. I can let you have the original source material if its any easier than taking it from Alberto's page Andy G4JNT -----Original Message----- From: WarmSpgs@aol.com [mailto:WarmSpgs@aol.com] Sent: 2004 February 17 20:44 To: rsgb_lf_group@blacksheep.org Subject: Re: LF: Re: Timing GPS (apologies) Sorry, group. I meant to send my request directly to Andy. John "This e-mail is intended for the recipient only. If you are not the intended recipient you must not use, disclose, distribute, copy, print, or rely upon this e-mail. If an addressing or transmission error has misdirected this e-mail, please notify the author by replying to this e-mail." "Recipients should note that all e-mail traffic on MOD systems is subject to monitoring and auditing." From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 17551 invoked from network); 16 Feb 2004 09:20:12 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore01.plus.net with SMTP; 16 Feb 2004 09:20:12 -0000 Content-Transfer-Encoding: 8bit Received: (qmail 47384 invoked from network); 16 Feb 2004 09:22:20 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 16 Feb 2004 09:22:19 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AsexH-000C9i-4I for dave@picks.force9.co.uk; Mon, 16 Feb 2004 09:22:19 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Asew3-00082d-7t for rs_out@blacksheep.org; Mon, 16 Feb 2004 09:21:03 +0000 Received: from [192.5.29.49] (helo=relay.dstl.gov.uk) by post.thorcom.com with smtp (Exim 4.14) id 1Asew2-00082U-GO for rsgb_lf_group@blacksheep.org; Mon, 16 Feb 2004 09:21:02 +0000 Received: (qmail 25272 invoked from network); 16 Feb 2004 09:20:59 +0000 X-Fake-Domain: unknown Received: from unknown (HELO warlock.dstl.gov.uk) (192.5.29.10) by relay.dera.gov.uk with SMTP; 16 Feb 2004 09:20:58 +0000 Message-ID: <7D653C9C42F5D411A27C00508BF8803D01A9F423@mail.dstl.gov.uk> From: "Talbot Andrew" To: rsgb_lf_group@blacksheep.org Date: Mon, 16 Feb 2004 09:20:58 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2657.72) Subject: RE: LF: Timing GPS and Spam Content-Type: text/plain; charset=iso-8859-1; format=flowed X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 1) Since transferring this reflector to my works computer and cancelling the old home EMail address most spam has stopped. However, I now get the occasional one to work which gets through the firewall. Obviously the LF reflector has something to do with this, but at least one per fortnight is better than 40 per day ! 2) I have done some further tests on the Jupiter T GPS module with its 10kHz output. Phase locking this to a 5MHz reference suggests a really good (for LF to HF use anyway) GPS Discpiplined oscillator is trivially simple - it doesn't need a high spec ovenned oscillator and provided it is used with a bit of common sense, doesn't even need to use a controller to read the data coming out. Just a small voltage controlled TCXO, two 74HC390 chips to divide this down to 10kHz, an EX-OR gate as a phase detector and a handful or Rs and C. Once the GPS Rx has locked up, the PLL takes a further couple of minutes to lock and its all going. A good quality source, with a short term stability of fractions of a Hz over seconds and perfect in the long term. I will write this up soon - the Jupiter-T GPS module is not cheap compared with some of those around - but the ease with which it can be used as a good frequency standard... Andy G4JNT "This e-mail is intended for the recipient only. If you are not the intended recipient you must not use, disclose, distribute, copy, print, or rely upon this e-mail. If an addressing or transmission error has misdirected this e-mail, please notify the author by replying to this e-mail." "Recipients should note that all e-mail traffic on MOD systems is subject to monitoring and auditing." From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 58000 invoked from network); 10 Feb 2004 15:56:38 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore01.plus.net with SMTP; 10 Feb 2004 15:56:38 -0000 Received: (qmail 91224 invoked from network); 10 Feb 2004 15:57:46 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 10 Feb 2004 15:57:45 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AqaGe-000NIV-E1 for dave@picks.force9.co.uk; Tue, 10 Feb 2004 15:57:44 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AqaFs-00016o-NS for rs_out@blacksheep.org; Tue, 10 Feb 2004 15:56:56 +0000 Received: from [192.5.29.49] (helo=relay.dstl.gov.uk) by post.thorcom.com with smtp (Exim 4.14) id 1AqaFs-00016f-1w for rsgb_lf_group@blacksheep.org; Tue, 10 Feb 2004 15:56:56 +0000 Received: (qmail 26039 invoked from network); 10 Feb 2004 15:56:55 +0000 X-Fake-Domain: unknown Received: from unknown (HELO warlock.dstl.gov.uk) (192.5.29.10) by relay.dera.gov.uk with SMTP; 10 Feb 2004 15:56:55 +0000 Message-ID: <7D653C9C42F5D411A27C00508BF8803D01A9F415@mail.dstl.gov.uk> From: "Talbot Andrew" To: rsgb_lf_group@blacksheep.org Date: Tue, 10 Feb 2004 15:56:53 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2657.72) Subject: RE: LF: Timing GPS Content-Type: text/html; charset=windows-1252 X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.6 required=5.0 tests=HTML_20_30,HTML_FONTCOLOR_BLUE,HTML_MESSAGE autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Content-transfer-encoding: 8bit

Well...

If you really want to play on the cheap and your ETrax has no PPS output, I suppose it is remotely feasible the leading edge of the NMEA string is probably consistent from second to second to within a few tens of microseconds - but you'd need to measure its absolute delay somehow which means having access to a true UTC related PPS

Perhaps we could do with a measurement session at some future LF Roundtable

There are (or at least were) some very cheap GPS modules on the surplus market - I got an Oncore from someone who had originally paid just a few pounds for it.

Andy  G4JNT

 

-----Original Message-----
From: G0MRF@aol.com [mailto:G0MRF@aol.com]
Sent: 2004 February 10 15:36
To: rsgb_lf_group@blacksheep.org
Subject: Re: LF: Timing GPS

In a message dated 2/10/04 12:35:33 PM GMT Standard Time, ACTALBOT@mail.dstl.gov.uk writes:

Well, I was really thinking of GPS locked PSK rather than any incoherent
mode.  WIthout the need for clock and frame timing recovery we could scrape
every possible advantage for coherent signalling.  With such superb accuarcy
of timing even without carrier recovery, it seems a pity to throw all the
advantages away by using on-off keyed power detection.

I did some basic tests last year with GPS locked 1 B/s PSK and with a very
simple decoder managed to receive down to frighteningly low signal levels.

Andy  G4JNT




Andy / group.

Would be happy to try this if there is a way of using the NEMA output from my e-trex venture. No problem with a little home constructing, but would prefer not to spend £86.

73

David
"The Information contained in this E-Mail and any subsequent correspondence"
"is private and is intended solely for the intended recipient(s)."
"For those other than the recipient any disclosure, copying, distribution, "
"or any action taken or omitted to be taken in reliance on such information is"
"prohibited and may be unlawful."
From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 68097 invoked from network); 10 Feb 2004 12:33:10 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore03.plus.net with SMTP; 10 Feb 2004 12:33:10 -0000 Content-Transfer-Encoding: 8bit Received: (qmail 6459 invoked from network); 10 Feb 2004 12:33:10 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 10 Feb 2004 12:33:09 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AqX4e-0001Il-FZ for dave@picks.force9.co.uk; Tue, 10 Feb 2004 12:33:08 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AqX2b-0002EL-Nb for rs_out@blacksheep.org; Tue, 10 Feb 2004 12:31:01 +0000 Received: from [192.5.29.49] (helo=relay.dstl.gov.uk) by post.thorcom.com with smtp (Exim 4.14) id 1AqX2a-0002EC-Hu for rsgb_lf_group@blacksheep.org; Tue, 10 Feb 2004 12:31:01 +0000 Received: (qmail 6151 invoked from network); 10 Feb 2004 12:30:57 +0000 X-Fake-Domain: unknown Received: from unknown (HELO warlock.dstl.gov.uk) (192.5.29.10) by relay.dera.gov.uk with SMTP; 10 Feb 2004 12:30:57 +0000 Message-ID: <7D653C9C42F5D411A27C00508BF8803D01A9F413@mail.dstl.gov.uk> From: "Talbot Andrew" To: rsgb_lf_group@blacksheep.org Date: Tue, 10 Feb 2004 12:30:55 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2657.72) Subject: RE: LF: Timing GPS Content-Type: text/plain; charset=iso-8859-1; format=flowed X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Well, I was really thinking of GPS locked PSK rather than any incoherent mode. WIthout the need for clock and frame timing recovery we could scrape every possible advantage for coherent signalling. With such superb accuarcy of timing even without carrier recovery, it seems a pity to throw all the advantages away by using on-off keyed power detection. I did some basic tests last year with GPS locked 1 B/s PSK and with a very simple decoder managed to receive down to frighteningly low signal levels. Andy G4JNT -----Original Message----- From: Jean-Louis.RAULT@fr.thalesgroup.com [mailto:Jean-Louis.RAULT@fr.thalesgroup.com] Sent: 2004 February 10 12:12 To: rsgb_lf_group@blacksheep.org Subject: RE: LF: Timing GPS Are you talking about something like coherent CW, Andy ? 73 de Jean-Louis F6AGR > -----Message d'origine----- > De : Talbot Andrew [mailto:ACTALBOT@mail.dstl.gov.uk] > > Judging by the lack of replies to this thread - there seems > little interest > here. A very great pity, as accurate GPS locked timing is > the next great > improvement we could make to LF signalling. "This e-mail is intended for the recipient only. If you are not the intended recipient you must not use, disclose, distribute, copy, print, or rely upon this e-mail. If an addressing or transmission error has misdirected this e-mail, please notify the author by replying to this e-mail." "Recipients should note that all e-mail traffic on MOD systems is subject to monitoring and auditing." From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 11175 invoked from network); 10 Feb 2004 09:36:51 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore02.plus.net with SMTP; 10 Feb 2004 09:36:51 -0000 Received: (qmail 13937 invoked from network); 10 Feb 2004 09:36:50 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 10 Feb 2004 09:36:49 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AqUK1-0003Ut-NW for dave@picks.force9.co.uk; Tue, 10 Feb 2004 09:36:49 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AqUJ1-0003wu-Fm for rs_out@blacksheep.org; Tue, 10 Feb 2004 09:35:47 +0000 Received: from [192.5.29.49] (helo=relay.dstl.gov.uk) by post.thorcom.com with smtp (Exim 4.14) id 1AqUIz-0003wj-UR for rsgb_lf_group@blacksheep.org; Tue, 10 Feb 2004 09:35:46 +0000 Received: (qmail 5977 invoked from network); 10 Feb 2004 09:35:42 +0000 X-Fake-Domain: unknown Received: from unknown (HELO warlock.dstl.gov.uk) (192.5.29.10) by relay.dera.gov.uk with SMTP; 10 Feb 2004 09:35:42 +0000 Message-ID: <7D653C9C42F5D411A27C00508BF8803D01A9F40F@mail.dstl.gov.uk> From: "Talbot Andrew" To: rsgb_lf_group@blacksheep.org Date: Tue, 10 Feb 2004 09:35:40 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2657.72) Subject: RE: LF: Timing GPS Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Judging by the lack of replies to this thread - there seems little interest here. A very great pity, as accurate GPS locked timing is the next great improvement we could make to LF signalling. I have been evaluating a lot of low cost GPS receiver modules recently. The Navman Jupiter module (available from www.tdc.co.uk for around £86) has a very useful 10kHz output from it as well as the one pulse per second. Using Argo to look at this 10kHz signal multiplied up to 10MHz, I couldn't detect any 1Hz sidebands on it. If this is really the case, the 10kHz will considerably simplify locked frequency sources as PLL bandwidths can presumably be widened and lock up times reduced. I'm a bit sceptical that the 10kHz signal can have a significantly better short term stability than the 1 PPS, but it is worth testing further. Andy G4JNT -----Original Message----- From: WarmSpgs@aol.com [mailto:WarmSpgs@aol.com] Sent: 2004 February 08 21:23 To: rsgb_lf_group@blacksheep.org Subject: Re: LF: Timing GPS In the month since the thread started, interest has picked up on this side of the pond in using GPS to synchronize timing of digital modes. No longer having to hunt and test for bit and frame timing, the efficiency of "classic" LF digital modes like BPSK improves immensely--even without referencing the carrier to GPS. "This e-mail is intended for the recipient only. If you are not the intended recipient you must not use, disclose, distribute, copy, print, or rely upon this e-mail. If an addressing or transmission error has misdirected this e-mail, please notify the author by replying to this e-mail." "Recipients should note that all e-mail traffic on MOD systems is subject to monitoring and auditing." From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 52667 invoked from network); 6 Feb 2004 09:16:51 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore04.plus.net with SMTP; 6 Feb 2004 09:16:51 -0000 Content-Transfer-Encoding: 8bit Received: (qmail 28939 invoked from network); 6 Feb 2004 09:16:50 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 6 Feb 2004 09:16:49 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1Ap26T-0007IV-Jc for dave@picks.force9.co.uk; Fri, 06 Feb 2004 09:16:49 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Ap25i-00026b-Om for rs_out@blacksheep.org; Fri, 06 Feb 2004 09:16:02 +0000 Received: from [192.5.29.49] (helo=relay.dstl.gov.uk) by post.thorcom.com with smtp (Exim 4.14) id 1Ap25h-00026Q-Th for rsgb_lf_group@blacksheep.org; Fri, 06 Feb 2004 09:16:02 +0000 Received: (qmail 23420 invoked from network); 6 Feb 2004 09:15:54 +0000 X-Fake-Domain: unknown Received: from unknown (HELO warlock.dstl.gov.uk) (192.5.29.10) by relay.dera.gov.uk with SMTP; 6 Feb 2004 09:15:54 +0000 Message-ID: <7D653C9C42F5D411A27C00508BF8803D01A9F402@mail.dstl.gov.uk> From: "Talbot Andrew" To: rsgb_lf_group@blacksheep.org Date: Fri, 6 Feb 2004 09:15:54 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2657.72) Subject: LF: RE: RE: G0MRF 300w Tx & DDS VFO Content-Type: text/plain; charset=iso-8859-1; format=flowed X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 What is the output configuration from the Iout pin(s), 20/21, on the AD9850 to any anti alias filter? Secondly, what is the value of the Rset resistor on pin 12 - this sets the full scale current from the internal D/A converter - a value of 3k9 sets 10mA full scale? With this current, single ended, into an impedance of 100 ohms (recommended on the data sheet) an output voltage of 353mV RMS should result. In the data sheet, the anti alias filter shown is designed for a Z0 of 200 ohms, and sits between 200 ohms resistors each end - giving the total 100 ohms load for one single Iout port the DDS. However, you appear to quote a 50 ohms load so 10mA full scale into this will result in only 177mV RMS which is roughly in the region of the figures you have measured. Now, your filter - particularly if is is an elliptic type with a sharp cut off - will have some quite wild impedance fluctuations in its passband and will likely result in the variations in level seen. Furthermore, there is a sin(x)/x roll off attenuating the top end of the frequency rsponse, although this only gives 1.6dB signal reduction at 40MHz My own preference, these days, for terminating the AD9850/51/52 family is to use a balanced ferrite transformer, making use of both Iout pins in push-pull to gain another 3dB, with 50 ohm operation. I usually adopt a trifilar wound transformer with a turns ratio of (1+1):1 with a true 50 ohm termination. The transformed impedance is therefore 200 ohms connected BETWEEN the two Iout pins, and gives 100 ohms each side with the centre tap connected to ground. Now, the output level can be measured accurately with 50 ohm test equipment, without the encumbrance of the anti-alias filter. The filter can then be set up separately between 50 ohms ports and conencted separately. Using this arrangement, a raw output level before the filter of 7dBm (in 50 ohms)is easily achievable - the Rset resistor can be reduced (check the data sheet for the limitiations here) for a higher Iout, and powers potentially in excess of 10dBm. With the 5V AD9850/51 devices, the turns ratio could even be made a bit higher for an increased Rload, like (1.2+1.2):1 for even more output. Andy G4JNT -----Original Message----- From: G4WGT - Gary [mailto:g4wgt@talkgas.net] Sent: 2004 February 05 18:39 To: rsgb_lf_group@blacksheep.org Subject: LF: RE: G0MRF 300w Tx & DDS VFO Hi Alan & LF, The frequency calibration of my DDS VFO is so good (with a little hit & miss twiddling)that it is zero beat with BBC Radio 4 on 198 Khz radio transmission & the freq stability is every bit as good, during hours of testing with 198 Khz as a reference I cannot detect any variation. The problem as I have specified in my e-mails is the low output. Last night I checked back to the DDS IC & there are no substantial losses in the signal path, even the insertion loss of the LPF is negligable. Here are the actual levels into 50 ohm load at the output of the DDS VFO. 137 & 274 Khz - 22mV 1.0 Mhz - 50mV 2.0 Mhz - 60mV 5.0 Mhz - 80mV 10.0 Mhz - 150mV 15.0 Mhz - 250mV 20.0 Mhz - 250mV 25.0 Mhz - 150mV 30.0 Mhz - 75mV 35.0 Mhz - 65mV 40.0 Mhz - 50mV I am also sending this info to the organiser of the offer/project from the G-QRP Club asking for his help, advice or a further contact point. By the way, the DDS chip is a Analog Devices AD9850 w/ 120 MHz Clock 73 Gary - G4WGT -----Original Message----- From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org]On Behalf Of Alan Melia Sent: 03 February 2004 21:53 To: rsgb_lf_group@blacksheep.org Subject: LF: Re: RE: Re: Re: G0MRF 300w Tx & DDS VFO Yes Ok Gary, I guessed it was so. I just wondered whther you had a "tight" filter. The signal out of the chip (do be carefull here) should be a logic level ..i.e. 5v p-p I would have thought (??) Cheers de Alan G3NYK "This e-mail is intended for the recipient only. If you are not the intended recipient you must not use, disclose, distribute, copy, print, or rely upon this e-mail. If an addressing or transmission error has misdirected this e-mail, please notify the author by replying to this e-mail." "Recipients should note that all e-mail traffic on MOD systems is subject to monitoring and auditing." From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 67350 invoked from network); 23 Feb 2004 14:06:48 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore02.plus.net with SMTP; 23 Feb 2004 14:06:48 -0000 Received: (qmail 92398 invoked from network); 23 Feb 2004 14:06:47 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 X-Priority: 3 X-MSMail-Priority: Normal Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 23 Feb 2004 14:06:43 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AvGjL-000Nas-H1 for dave@picks.force9.co.uk; Mon, 23 Feb 2004 14:06:43 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AvGiY-0003Pe-OY for rs_out@blacksheep.org; Mon, 23 Feb 2004 14:05:54 +0000 Received: from [195.37.42.5] (helo=rzlsrv1.fh-amberg-weiden.de) by post.thorcom.com with esmtp (Exim 4.14) id 1AvGiY-0003PV-2e for rsgb_lf_group@blacksheep.org; Mon, 23 Feb 2004 14:05:54 +0000 Received: from localhost (localhost [127.0.0.1]) by rzlsrv1.fh-amberg-weiden.de (Postfix on SuSE Linux 8.0 (i386)) with ESMTP id 70323212F89 for ; Mon, 23 Feb 2004 15:04:28 +0100 (CET) Received: from rzlsrv1.fh-amberg-weiden.de ([127.0.0.1]) by localhost (rzlsrv1 [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 12896-07 for ; Mon, 23 Feb 2004 15:04:28 +0100 (CET) X-Fake-Domain: fh-amberg-weiden.de Received: from fh-amberg-weiden.de (kp.fh-amberg-weiden.de [10.10.130.30]) by rzlsrv1.fh-amberg-weiden.de (Postfix on SuSE Linux 8.0 (i386)) with ESMTP id 5E790212F6C for ; Mon, 23 Feb 2004 15:04:27 +0100 (CET) Message-ID: <403A086A.9070208@fh-amberg-weiden.de> Date: Mon, 23 Feb 2004 15:04:26 +0100 From: =?iso-8859-1?Q?Thomas_K=F6lpin?= User-Agent: Mozilla/5.0 (Windows; U; WinNT4.0; de-DE; rv:1.4) Gecko/20030619 Netscape/7.1 (ax) X-Accept-Language: de-de, de MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org X-Virus-Scanned: by amavisd-new at fh-amberg-weiden.de Subject: LF: Beaconing Feb 23/24 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Dear group, DK1IS in JN59WK will try some beaconing tonight. Mode: DFCW single space, 60 seconds dot, 20 seconds gap, 0.2 Hz shift QRG: 135922.55 / 135922.75 Hz (plus-minus counter error, the shift being rather exact) Text: DK1IS (repeated continously, sychronized on each half hour) Start: 2004-02-23 21:30 UTC Stop: 2004-02-24 06:00 UTC (at smoke emission or bad DCF-39 levels at W3EEE perhaps earlier) PWR: 400 W RF ANT: Toploaded Marconi, 13 m up, C = 660 pF, R = 24 Ohms Reports are very welcome via thomas.koelpin@gmx.net (during transmission) or via the reflector! Tu, vy 73 es cuagn Tom, DK1IS From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 91853 invoked from network); 21 Feb 2004 10:27:11 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore02.plus.net with SMTP; 21 Feb 2004 10:27:11 -0000 Received: (qmail 11065 invoked from network); 21 Feb 2004 10:27:11 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 21 Feb 2004 10:27:10 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AuULm-0002hF-9q for dave@picks.force9.co.uk; Sat, 21 Feb 2004 10:27:10 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AuUKR-0003ya-NX for rs_out@blacksheep.org; Sat, 21 Feb 2004 10:25:47 +0000 Received: from [194.217.242.88] (helo=anchor-post-30.mail.demon.net) by post.thorcom.com with esmtp (Exim 4.14) id 1AuUKR-0003yJ-0H for rsgb_lf_group@blacksheep.org; Sat, 21 Feb 2004 10:25:47 +0000 Received: from telemetry.demon.co.uk ([194.222.19.114]) by anchor-post-30.mail.demon.net with esmtp (Exim 3.35 #1) id 1AuUKP-0008vZ-0U for rsgb_lf_group@blacksheep.org; Sat, 21 Feb 2004 10:25:46 +0000 Message-ID: Date: Sat, 21 Feb 2004 10:09:41 +0000 To: rsgb_lf_group@blacksheep.org From: "Tom Boucher" References: <131.2a3ec779.2d67f908@aol.com> In-reply-to: <131.2a3ec779.2d67f908@aol.com> MIME-Version: 1.0 X-Mailer: Turnpike Integrated Version 5.01 U Subject: Re: LF: G0MIN or good things come to those who wait. Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 David Yes but are you going to put 3B9C on 136?? 73, Tom G3OLB In message <131.2a3ec779.2d67f908@aol.com>, G0MRF@aol.com writes > > > Some time ago my local club station at Whitton operated 73 and > 136kHz on a Friday night. > This was a great learning experience for the club members as > usually something dramatic would happen. Unfortunately we had to > close the LF operation as some fast growing conifers became > entangled with the antenna. As they belonged to the church next to > the community centre there wasn't very much we could > do.........G0MIN QRT! > > 6 months ago some nasty looking cracks appeared in one of the > community centre's walls and after an inspection the local > authority decided the trees were responsible. > > Earlier this week 6 trees were felled and we now have an > unobstructed wire 250 feet long with the far end attached to the > church 90ft AGL. > > So from next week we'll be back on a Friday evening with something > between 500mW and 1W  ERP.   Yippee  It's been too long. > > 73 > > David   G0MRF From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 75816 invoked from network); 21 Feb 2004 10:24:06 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore01.plus.net with SMTP; 21 Feb 2004 10:24:06 -0000 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit Received: (qmail 78063 invoked from network); 21 Feb 2004 10:27:06 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 21 Feb 2004 10:27:05 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AuULh-000KBs-ML for dave@picks.force9.co.uk; Sat, 21 Feb 2004 10:27:05 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AuUKR-0003yZ-Lq for rs_out@blacksheep.org; Sat, 21 Feb 2004 10:25:47 +0000 Received: from [194.217.242.88] (helo=anchor-post-30.mail.demon.net) by post.thorcom.com with esmtp (Exim 4.14) id 1AuUKQ-0003yH-SF for rsgb_lf_group@blacksheep.org; Sat, 21 Feb 2004 10:25:46 +0000 Received: from telemetry.demon.co.uk ([194.222.19.114]) by anchor-post-30.mail.demon.net with esmtp (Exim 3.35 #1) id 1AuUKP-0008vX-0U for rsgb_lf_group@blacksheep.org; Sat, 21 Feb 2004 10:25:45 +0000 Message-ID: Date: Sat, 21 Feb 2004 09:50:50 +0000 To: rsgb_lf_group@blacksheep.org From: "Tom Boucher" References: <000701c3f7a9$3efe6920$6507a8c0@Main> <002901c3f7e4$ef6b59e0$a71279d1@jsm> <002d01c3f7ee$7dba62f0$1f00a8c0@dellboy> In-reply-to: <002d01c3f7ee$7dba62f0$1f00a8c0@dellboy> MIME-Version: 1.0 X-Mailer: Turnpike Integrated Version 5.01 U Subject: Re: LF: Antenna Insulators X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Send him an old toothbrush! In message <002d01c3f7ee$7dba62f0$1f00a8c0@dellboy>, Dave Pick writes >Dear all. > >I don't like pipe because water collects inside and it's amazing how far an >arc can track down a damp path! >If you do use it, seal the ends with silicone sealant (applied in a dry >place), that seems to work. > >Dave G3YXM. From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 52037 invoked from network); 20 Feb 2004 18:19:07 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore02.plus.net with SMTP; 20 Feb 2004 18:19:07 -0000 Received: (qmail 70740 invoked from network); 20 Feb 2004 18:19:06 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 20 Feb 2004 18:19:05 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AuFEv-000IHc-RQ for dave@picks.force9.co.uk; Fri, 20 Feb 2004 18:19:05 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AuFEJ-0007mj-5i for rs_out@blacksheep.org; Fri, 20 Feb 2004 18:18:27 +0000 Received: from [62.253.162.45] (helo=mta05-svc.ntlworld.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AuFED-0007mV-QN for rsgb_lf_group@blacksheep.org; Fri, 20 Feb 2004 18:18:21 +0000 X-Fake-Domain: smiley Received: from smiley ([217.137.56.1]) by mta05-svc.ntlworld.com (InterMail vM.4.01.03.37 201-229-121-137-20020806) with SMTP id <20040220181309.TPDN27661.mta05-svc.ntlworld.com@smiley> for ; Fri, 20 Feb 2004 18:13:09 +0000 X-Bad-Message-ID: no DNS (smiley) Message-ID: <006d01c3f7dd$677a3080$fad5fea9@smiley> From: "Tracey Gardner" To: rsgb_lf_group@blacksheep.org References: <1ab.2067cb62.2d63d54c@aol.com> <00a601c3f7dc$1d478cc0$a1c828c3@captbrian> Date: Fri, 20 Feb 2004 18:14:36 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1158 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: The Lowdown Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 It's the magazine produced by the Longwave Club of America (LWCA) 73s Tracey ----- Original Message ----- From: "captbrian" To: Sent: Friday, February 20, 2004 4:59 PM Subject: LF: The Lowdown > What is the LOWDOWN? > Bryan > ----- Original Message ----- > From: > To: > Sent: 17 February 2004 20:36 > Subject: LF: Re: Timing GPS > > > > Andy, > > butors on this side of the pond. > > > > Could we print your notes and illustrations in The LOWDOWN for interested > > parties who are not, shall we say, online-enabled? > > > > Thanks. > > > > John Davis > > > > > > > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 48198 invoked from network); 4 Feb 2004 13:49:25 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore03.plus.net with SMTP; 4 Feb 2004 13:49:25 -0000 Received: (qmail 89802 invoked from network); 4 Feb 2004 13:49:25 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 4 Feb 2004 13:49:24 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1AoNP9-000NEh-SK for dave@picks.force9.co.uk; Wed, 04 Feb 2004 13:49:23 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AoNOT-0005DX-TK for rs_out@blacksheep.org; Wed, 04 Feb 2004 13:48:41 +0000 Received: from [62.253.162.42] (helo=mta02-svc.ntlworld.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AoNOO-0005DI-Lg for rsgb_lf_group@blacksheep.org; Wed, 04 Feb 2004 13:48:36 +0000 X-Fake-Domain: smiley Received: from smiley ([217.137.58.63]) by mta02-svc.ntlworld.com (InterMail vM.4.01.03.37 201-229-121-137-20020806) with SMTP id <20040204134739.OWVQ9412.mta02-svc.ntlworld.com@smiley> for ; Wed, 4 Feb 2004 13:47:39 +0000 X-Bad-Message-ID: no DNS (smiley) Message-ID: <003401c3eb25$9f36ec80$fad5fea9@smiley> From: "Tracey Gardner" To: rsgb_lf_group@blacksheep.org References: <6.0.1.1.2.20040204142244.032337e0@POP3.freeler.nl> Date: Wed, 4 Feb 2004 13:48:03 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1158 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: Manual SPM-3 Content-Type: text/html; charset=windows-1252 X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.2 required=5.0 tests=HTML_50_60,HTML_MESSAGE autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Content-transfer-encoding: 8bit
Hello Dick
 
I have an original W&G manual for the SPM-3.
 
73s Tracey
 
Tracey
----- Original Message -----
Sent: Wednesday, February 04, 2004 1:26 PM
Subject: LF: Manual SPM-3

To All from PA0SE

PA3DUK of The Hague has obtained a Wandel & Goltermann selective level meter type SPM-3. But he has no manual for it.
Anyone knows where to find one?

73, Dick, PA0SE
From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 54386 invoked from network); 18 Feb 2004 09:54:52 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore03.plus.net with SMTP; 18 Feb 2004 09:54:52 -0000 Received: (qmail 27430 invoked from network); 18 Feb 2004 09:54:52 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 18 Feb 2004 09:54:51 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AtOPr-0006yx-B9 for dave@picks.force9.co.uk; Wed, 18 Feb 2004 09:54:51 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AtOPE-0005tr-EB for rs_out@blacksheep.org; Wed, 18 Feb 2004 09:54:12 +0000 Received: from [205.188.157.35] (helo=imo-d03.mx.aol.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AtOPD-0005tf-Sn for rsgb_lf_group@blacksheep.org; Wed, 18 Feb 2004 09:54:12 +0000 X-Fake-Domain: WarmSpgs@aol.com Received: from WarmSpgs@aol.com by imo-d03.mx.aol.com (mail_out_v36_r4.14.) id l.7d.46fdc741 (4328) for ; Wed, 18 Feb 2004 04:53:35 -0500 (EST) From: WarmSpgs@aol.com Message-ID: <7d.46fdc741.2d64901e@aol.com> Date: Wed, 18 Feb 2004 04:53:34 EST To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 X-Mailer: AOL 4.0 for Windows 95 sub 120 Subject: Re: LF: Re: Timing GPS (apologies again) Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.3 required=5.0 tests=NO_REAL_NAME autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 > Sorry all - its farcical I did just the same thing! I'd feel better knowing that, but I'm afraid I just did the same thing again myself. Apologies again! The only excuse I can offer is that this time I was in the process of amending the Send To field for Andy's address via cut-and-paste, but my AOL software interpreted something I did as a click on the Send button before I achieved the desired result. Shouldn't happen again. John From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 7316 invoked from network); 18 Feb 2004 09:47:10 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore04.plus.net with SMTP; 18 Feb 2004 09:47:10 -0000 Received: (qmail 91210 invoked from network); 18 Feb 2004 09:47:09 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 18 Feb 2004 09:47:03 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AtOIJ-000NJ0-65 for dave@picks.force9.co.uk; Wed, 18 Feb 2004 09:47:03 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AtOHG-0005EE-WE for rs_out@blacksheep.org; Wed, 18 Feb 2004 09:45:58 +0000 Received: from [205.188.157.35] (helo=imo-d03.mx.aol.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AtOHG-0005E3-2o for rsgb_lf_group@blacksheep.org; Wed, 18 Feb 2004 09:45:58 +0000 X-Fake-Domain: WarmSpgs@aol.com Received: from WarmSpgs@aol.com by imo-d03.mx.aol.com (mail_out_v36_r4.14.) id l.162.2bb4554f (4328) for ; Wed, 18 Feb 2004 04:45:21 -0500 (EST) From: WarmSpgs@aol.com Message-ID: <162.2bb4554f.2d648e30@aol.com> Date: Wed, 18 Feb 2004 04:45:20 EST To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 X-Mailer: AOL 4.0 for Windows 95 sub 120 Subject: Re: LF: Re: Timing GPS (apologies) Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.3 required=5.0 tests=NO_REAL_NAME autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 In a message dated 2/18/04 3:13:07 AM Eastern Standard Time, ACTALBOT@mail.dstl.gov.uk writes: > Glad its of some use, yes print in the Lowdown with pleasure. I can let you > have the original source material if its any easier than taking it from > Alberto's page From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 46244 invoked from network); 17 Feb 2004 20:42:57 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore01.plus.net with SMTP; 17 Feb 2004 20:42:57 -0000 Received: (qmail 68605 invoked from network); 17 Feb 2004 20:45:20 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 17 Feb 2004 20:45:19 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AtC5m-000Hfz-UU for dave@picks.force9.co.uk; Tue, 17 Feb 2004 20:45:18 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AtC5D-00084h-G5 for rs_out@blacksheep.org; Tue, 17 Feb 2004 20:44:43 +0000 Received: from [205.188.157.35] (helo=imo-d03.mx.aol.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AtC5C-00084Y-SD for rsgb_lf_group@blacksheep.org; Tue, 17 Feb 2004 20:44:42 +0000 X-Fake-Domain: WarmSpgs@aol.com Received: from WarmSpgs@aol.com by imo-d03.mx.aol.com (mail_out_v36_r4.14.) id l.1e8.192578b5 (18555) for ; Tue, 17 Feb 2004 15:44:08 -0500 (EST) From: WarmSpgs@aol.com Message-ID: <1e8.192578b5.2d63d718@aol.com> Date: Tue, 17 Feb 2004 15:44:08 EST To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 X-Mailer: AOL 4.0 for Windows 95 sub 120 Subject: Re: LF: Re: Timing GPS (apologies) Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.3 required=5.0 tests=NO_REAL_NAME autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Sorry, group. I meant to send my request directly to Andy. John From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 36620 invoked from network); 17 Feb 2004 20:38:25 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore02.plus.net with SMTP; 17 Feb 2004 20:38:25 -0000 Received: (qmail 39238 invoked from network); 17 Feb 2004 20:38:24 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 17 Feb 2004 20:38:21 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AtBz3-0009y2-2Z for dave@picks.force9.co.uk; Tue, 17 Feb 2004 20:38:21 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AtBxn-0007Mu-Sd for rs_out@blacksheep.org; Tue, 17 Feb 2004 20:37:03 +0000 Received: from [152.163.225.100] (helo=imo-r04.mx.aol.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AtBxn-0007EL-8s for rsgb_lf_group@blacksheep.org; Tue, 17 Feb 2004 20:37:03 +0000 X-Fake-Domain: WarmSpgs@aol.com Received: from WarmSpgs@aol.com by imo-r04.mx.aol.com (mail_out_v36_r4.14.) id l.1ab.2067cb62 (18555) for ; Tue, 17 Feb 2004 15:36:29 -0500 (EST) From: WarmSpgs@aol.com Message-ID: <1ab.2067cb62.2d63d54c@aol.com> Date: Tue, 17 Feb 2004 15:36:28 EST To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 X-Mailer: AOL 4.0 for Windows 95 sub 120 Subject: LF: Re: Timing GPS Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.3 required=5.0 tests=NO_REAL_NAME autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 Andy, The Navman Jupiter board is a very interesting product. I had previously obtained a little information from their Web site (not as easy to navigate as one might hope) and was delighted today to read your notes as published on Alberto's Web site. I'm currently engaged in a game of "phone tag" with the Navman US sales office to pin down distributors on this side of the pond. Could we print your notes and illustrations in The LOWDOWN for interested parties who are not, shall we say, online-enabled? Thanks. John Davis From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 79834 invoked from network); 13 Feb 2004 21:56:33 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore03.plus.net with SMTP; 13 Feb 2004 21:56:33 -0000 Received: (qmail 75758 invoked from network); 13 Feb 2004 21:56:33 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 13 Feb 2004 21:56:30 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1ArlIT-000JNM-T4 for dave@picks.force9.co.uk; Fri, 13 Feb 2004 21:56:29 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ArlHZ-0005ds-1R for rs_out@blacksheep.org; Fri, 13 Feb 2004 21:55:33 +0000 Received: from [152.163.225.98] (helo=imo-r02.mx.aol.com) by post.thorcom.com with esmtp (Exim 4.14) id 1ArlHY-0005bL-CR for rsgb_lf_group@blacksheep.org; Fri, 13 Feb 2004 21:55:32 +0000 X-Fake-Domain: WarmSpgs@aol.com Received: from WarmSpgs@aol.com by imo-r02.mx.aol.com (mail_out_v36_r4.14.) id l.143.21a3b7d4 (3310) for ; Fri, 13 Feb 2004 16:54:58 -0500 (EST) From: WarmSpgs@aol.com Message-ID: <143.21a3b7d4.2d5ea1b2@aol.com> Date: Fri, 13 Feb 2004 16:54:58 EST To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 X-Mailer: AOL 4.0 for Windows 95 sub 120 Subject: Re: LF: Timing GPS Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.3 required=5.0 tests=NO_REAL_NAME autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 In a message dated 2/13/04 7:07:06 AM Eastern Standard Time, Jean-Louis.RAULT@fr.thalesgroup.com writes: > Up to now, the only way I found to synchronise the software and the hardware > clocks is to switch the computer off and on again. > Any Windows guru on this mailing list ? I used to write applications for Windows 3.x and 9x that displayed time more precisely than most thought possible with Windows, but I'm not enough of a guru to have figured out a good solution for NT-based versions yet. With programs no longer having direct access to the hardware, the time is whatever Windows says it is. I expect there are still ways to trigger reading of the system clock, but there will always be slippage of an unknown number of "ticks", depending on what processes are running and what priority they have. You can never know for certain how long the time is between issuance of a request via software and its execution, because your software's request and all other messages in the queue affect the outcome--not unlike trying to simultaneously measure the position and velocity of subatomic particles. The additive effects of such "virtual clock jitter" at both the sending and receiving ends can be accomodated by inherently tolerant visual modes at extremely slow data rates, but I fear that to achieve the breakthroughs we'd all like to see, we'll need more precision. Synchronizing a GUI-based operating system to a timeserver over the Net involves a lot of variables, each of which changes somewhat over time. That's why VE2IQ's GPS-synched AFRICAM only runs in DOS, and goes as directly to the source as possible for its timing information. Thus far, the results seem to be worth the slight extra effort. 73 John From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 34825 invoked from network); 12 Feb 2004 22:52:51 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore03.plus.net with SMTP; 12 Feb 2004 22:52:51 -0000 Received: (qmail 49774 invoked from network); 12 Feb 2004 22:52:51 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 12 Feb 2004 22:52:50 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1ArPhS-000CpT-83 for dave@picks.force9.co.uk; Thu, 12 Feb 2004 22:52:50 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ArPgb-0004Ox-MP for rs_out@blacksheep.org; Thu, 12 Feb 2004 22:51:57 +0000 Received: from [64.12.137.1] (helo=imo-m20.mx.aol.com) by post.thorcom.com with esmtp (Exim 4.14) id 1ArPga-0004OZ-Qo for rsgb_lf_group@blacksheep.org; Thu, 12 Feb 2004 22:51:56 +0000 X-Fake-Domain: WarmSpgs@aol.com Received: from WarmSpgs@aol.com by imo-m20.mx.aol.com (mail_out_v36_r4.12.) id l.1ef.18e94277 (18555) for ; Thu, 12 Feb 2004 17:51:24 -0500 (EST) From: WarmSpgs@aol.com Message-ID: <1ef.18e94277.2d5d5d6b@aol.com> Date: Thu, 12 Feb 2004 17:51:23 EST To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 X-Mailer: AOL 4.0 for Windows 95 sub 120 Subject: Re: LF: Timing GPS Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.3 required=5.0 tests=NO_REAL_NAME autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 In a message dated 2/12/04 5:20:05 PM Eastern Standard Time, Uwe writes: > During lf transmittings of your own > station there will be no clocking because the DCF77 receiver will be > overloaded (what is it in english "zugestopft"?) In American English. at least, "overloaded" is the commonly used term, although "desensitized" may be more technically accurate in some cases. However, I must admit "zugestopft" surely *sounds* more like something that would happen in the front end of a receiver! John From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 87985 invoked from network); 10 Feb 2004 12:48:57 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore03.plus.net with SMTP; 10 Feb 2004 12:48:57 -0000 Received: (qmail 99661 invoked from network); 10 Feb 2004 12:48:57 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 10 Feb 2004 12:48:54 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1AqXJu-000Pmz-1C for dave@picks.force9.co.uk; Tue, 10 Feb 2004 12:48:54 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AqXJA-0002Vl-Kz for rs_out@blacksheep.org; Tue, 10 Feb 2004 12:48:08 +0000 Received: from [152.163.225.102] (helo=imo-r06.mx.aol.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AqXJ9-0002VU-AY for rsgb_lf_group@blacksheep.org; Tue, 10 Feb 2004 12:48:07 +0000 X-Fake-Domain: WarmSpgs@aol.com Received: from WarmSpgs@aol.com by imo-r06.mx.aol.com (mail_out_v36_r4.12.) id l.11d.2b02a263 (4410) for ; Tue, 10 Feb 2004 07:47:31 -0500 (EST) From: WarmSpgs@aol.com Message-ID: <11d.2b02a263.2d5a2ce2@aol.com> Date: Tue, 10 Feb 2004 07:47:30 EST To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 X-Mailer: AOL 4.0 for Windows 95 sub 120 Subject: Re: LF: Timing GPS Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.3 required=5.0 tests=NO_REAL_NAME autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 In a message dated 2/10/04 7:16:57 AM Eastern Standard Time, Jean-Louis.RAULT@fr.thalesgroup.com writes: > Are you talking about something like coherent CW, Andy ? > That is one possibility, Jean-Louis. Any mode that depends on knowledge of bit timing can be made more efficient through external synchronization. This would include any of the PSK modes, for instance, or eventually a real-time version of WOLF. Even FFT-based tools like ARGO and JASON, amazing as they are in their present form, could be better optimized if the receiving computer knew exactly when each bit was due to start. Further optimization is possible if the frequencies were precisely known, too, of course--something which could be made much easier if the Navman 10kHz output turns out to be as good as Andy's first results indicate. 73 John From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 9411 invoked from network); 8 Feb 2004 21:24:13 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore04.plus.net with SMTP; 8 Feb 2004 21:24:13 -0000 Received: (qmail 13152 invoked from network); 8 Feb 2004 21:24:13 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 8 Feb 2004 21:24:12 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1ApwPT-000355-T2 for dave@picks.force9.co.uk; Sun, 08 Feb 2004 21:24:11 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ApwOb-0001Yk-LL for rs_out@blacksheep.org; Sun, 08 Feb 2004 21:23:17 +0000 Received: from [152.163.225.99] (helo=imo-r03.mx.aol.com) by post.thorcom.com with esmtp (Exim 4.14) id 1ApwOb-0001Yb-08 for rsgb_lf_group@blacksheep.org; Sun, 08 Feb 2004 21:23:17 +0000 X-Fake-Domain: WarmSpgs@aol.com Received: from WarmSpgs@aol.com by imo-r03.mx.aol.com (mail_out_v36_r4.12.) id l.1cd.190bfaf1 (30950) for ; Sun, 8 Feb 2004 16:22:40 -0500 (EST) From: WarmSpgs@aol.com Message-ID: <1cd.190bfaf1.2d5802a0@aol.com> Date: Sun, 8 Feb 2004 16:22:40 EST To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 X-Mailer: AOL 4.0 for Windows 95 sub 120 Subject: Re: LF: Timing GPS Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.3 required=5.0 tests=NO_REAL_NAME autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 In the month since the thread started, interest has picked up on this side of the pond in using GPS to synchronize timing of digital modes. No longer having to hunt and test for bit and frame timing, the efficiency of "classic" LF digital modes like BPSK improves immensely--even without referencing the carrier to GPS. There's a story about Bill de Carle's new BPSK software on the lwca.org home page now ( http://lwca.org/ ). We also have an item about organizing/organising an informal longwave presence at this year's Dayton HAMVENTION, in case anyone in this group is planning to attend. 73 John Davis