From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 6707 invoked from network); 31 Dec 2002 23:40:10 -0000 Received: from netmail01.services.quay.plus.net (212.159.14.219) by mailstore with SMTP; 31 Dec 2002 23:40:10 -0000 Received: (qmail 26226 invoked from network); 31 Dec 2002 23:39:50 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from post.thorcom.com (193.82.116.70) by netmail01.services.quay.plus.net with SMTP; 31 Dec 2002 23:39:50 -0000 X-SQ: A X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18TVur-00021R-00 for rsgb_lf_group-outgoing@blacksheep.org; Tue, 31 Dec 2002 23:35:21 +0000 Received: from [211.157.101.64] (helo=localhost.localdomain) by post.thorcom.com with esmtp (Exim 4.12) id 18TVun-00021F-00 for rsgb_lf_group@blacksheep.org; Tue, 31 Dec 2002 23:35:17 +0000 Received: from () by localhost.localdomain (8.11.6/8.11.6) with ESMTP id gBVNMOj31237 for ; Wed, 1 Jan 2003 07:22:29 +0800 Message-ID: <1122CR1000001926@p1j2m3a4.pdhost.com> Date: Wed, 1 Jan 2003 07:32:04 +0800 (CST) From: "Helen Baker" To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 X-EMA-CID: 13955367 X-EMA-PC: 0f259c0aac400 Subject: LF: www.picks.force9.co.uk Content-Type: text/html; charset=windows-1252 X-Spam-Status: No, hits=4.0 required=6.0tests=EXCUSE_10,EXCUSE_14,HTML_FONT_COLOR_GRAY, HTML_FONT_COLOR_RED,NORMAL_HTTP_TO_IP,SPAM_PHRASE_08_13, WEB_BUGSversion=2.43 X-Spam-Level: **** 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Content-transfer-encoding: 8bit

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From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 22506 invoked from network); 31 Jan 2003 21:07:40 -0000 Received: from murphys.services.quay.plus.net (212.159.14.225) by mailstore with SMTP; 31 Jan 2003 21:07:40 -0000 Received: (qmail 28379 invoked from network); 31 Jan 2003 21:07:35 -0000 Received: from post.thorcom.com (193.82.116.70) by murphys.services.quay.plus.net with SMTP; 31 Jan 2003 21:07:35 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18eiND-0004Ox-00 for rsgb_lf_group-outgoing@blacksheep.org; Fri, 31 Jan 2003 21:06:55 +0000 Received: from [195.110.100.2] (helo=mail.dada.it) by post.thorcom.com with smtp (Exim 4.12) id 18eiND-0004On-00 for rsgb_lf_group@blacksheep.org; Fri, 31 Jan 2003 21:06:55 +0000 Received: (qmail 4720 invoked from network); 31 Jan 2003 21:06:21 -0000 Received: from unknown (HELO cestag) (195.110.102.32) by mail.dada.it with SMTP; 31 Jan 2003 21:06:21 -0000 Message-ID: <003301c2c96c$d36ecc60$20666ec3@cestag> From: "cesare tagliabue" To: rsgb_lf_group@blacksheep.org References: <000c01c2a79b$175dfc00$53e4fc3e@l8p8y6> <002f01c2a7a2$18434ec0$28676ec3@cestag> <000b01c2c93b$6d8ce980$0bc828c3@erica> Date: Fri, 31 Jan 2003 22:07:06 +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: R: Re: R: I5TGC Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.0 required=6.0tests=QUOTED_EMAIL_TEXT,REFERENCES,SPAM_PHRASE_03_05, USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Hello Peter Obviously you can use my web page as source of informations about my antennas, I'll search in my PC for any possible further useful pictures or schematics, may be there are some high resolution images, I'll send what I find as soon as possible. Best 73 for now Cesare Cesare Tagliabue I 5 TGC WW-Loc JN53PS e-mail: cestag@dada.it url: http://dai5tgc.dadacasa.supereva.it -----Messaggio Originale----- Da: "g3ldo" A: Data invio: venerdė 31 gennaio 2003 16.11 Oggetto: LF: Re: R: I5TGC > Hello Cesare > > I write a column each month for the RSGB magazine, RadCom, called > 'Antennas'. I often get letters from readers who ask 'what is the best > commercial antenna to use if you have only a small garden or no garden at > all and talk about the impossability of operating on the lower frequency > bands from such a QTH. > I would like to describe your lower frequency antennas as an example of what > can be done to overcome these difficulties. > I would like to use the description from your web page (or any other > information that you might have). Do you have some higher resolution images > that could be used. In general a .JPG image needs to be over 100k in size to > be reproduced in a magazine. > > Many thanks > > > Peter, G3LDO > > e-mail > > Web > > > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 28032 invoked from network); 31 Jan 2003 19:13:29 -0000 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit Received: from netmail01.services.quay.plus.net (212.159.14.219) by mailstore with SMTP; 31 Jan 2003 19:13:29 -0000 Received: (qmail 26886 invoked by uid 10001); 31 Jan 2003 19:13:29 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail01.services.quay.plus.net with SMTP; 31 Jan 2003 19:13:29 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18egan-0003kO-00 for rsgb_lf_group-outgoing@blacksheep.org; Fri, 31 Jan 2003 19:12:49 +0000 Received: from [194.25.134.21] (helo=mailout10.sul.t-online.com) by post.thorcom.com with esmtp (Exim 4.12) id 18egam-0003kF-00 for rsgb_lf_group@blacksheep.org; Fri, 31 Jan 2003 19:12:48 +0000 Received: from fwd08.sul.t-online.de by mailout10.sul.t-online.com with smtp id 18egal-0001Ou-03; Fri, 31 Jan 2003 20:12:47 +0100 Received: from oben (520036610031-0001@[217.226.120.59]) by fwd08.sul.t-online.com with smtp id 18egac-0T0vx2C; Fri, 31 Jan 2003 20:12:38 +0100 Message-ID: <001201c2c95c$b8bb6be0$ee9bfea9@oben> From: "dj9dw" To: rsgb_lf_group@blacksheep.org Date: Fri, 31 Jan 2003 20:12:38 +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-Sender: 520036610031-0001@t-dialin.net Subject: LF: Content-Type: multipart/alternative;boundary="----=_NextPart_000_000F_01C2C965.1A3F6F80" X-Spam-Status: No, hits=1.3 required=6.0tests=SPAM_PHRASE_00_01,SUBJ_MISSING,USER_AGENT_OEversion=2.43 X-Spam-Level: * 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false This is a multi-part message in MIME format. ------=_NextPart_000_000F_01C2C965.1A3F6F80 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Hello LF-Group, is there any formula to calculate a basket weave coil ( to load my = marconi in spe) ? Suppose 3 mH will be handy. 73, dj9dw, Peter. ------=_NextPart_000_000F_01C2C965.1A3F6F80 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable

Hello LF-Group,

is there any formula to calculate a = basket weave=20 coil ( to load my marconi in spe) ?

Suppose 3 mH will be = handy.

73, dj9dw, Peter.

------=_NextPart_000_000F_01C2C965.1A3F6F80-- From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 22460 invoked from network); 31 Jan 2003 17:31:15 -0000 Received: from murphys.services.quay.plus.net (212.159.14.225) by mailstore with SMTP; 31 Jan 2003 17:31:15 -0000 Received: (qmail 2075 invoked from network); 31 Jan 2003 17:31:09 -0000 Received: from post.thorcom.com (193.82.116.70) by murphys.services.quay.plus.net with SMTP; 31 Jan 2003 17:31:08 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18eeza-0003Ar-00 for rsgb_lf_group-outgoing@blacksheep.org; Fri, 31 Jan 2003 17:30:18 +0000 Received: from [194.73.73.111] (helo=gadolinium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.12) id 18eezZ-0003Ai-00 for rsgb_lf_group@blacksheep.org; Fri, 31 Jan 2003 17:30:17 +0000 Received: from host217-35-12-143.in-addr.btopenworld.com ([217.35.12.143] helo=dellboy) by gadolinium.btinternet.com with smtp (Exim 3.22 #16) id 18eezZ-0002Gn-00 for rsgb_lf_group@blacksheep.org; Fri, 31 Jan 2003 17:30:17 +0000 Message-ID: <002101c2c94e$8efe7cb0$1b00a8c0@dellboy> From: "Dave Pick" To: rsgb_lf_group@blacksheep.org References: <2D280BB697C7EE4C979C5C89925418EFB05AB6@TNS-FBU-2E-003.corp.telenor.no> Date: Fri, 31 Jan 2003 17:31:13 -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: Re: R: I5TGC Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.8 required=6.0tests=REFERENCES,SPAM_PHRASE_03_05,USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false gifs are smaller for areas of solid colour, like diagrams. Jpegs are smaller for photos. Dave G3YXM ----- Original Message ----- From: To: Cc: Sent: Friday, January 31, 2003 4:30 PM Subject: LF: RE: Re: R: I5TGC well, gif type files are smaller, don't really understand why it should be jpg? 73, Jan-Martin --- J M Nøding, Kristiansand -----Original Message----- From: g3ldo [mailto:g3ldo@ukonline.co.uk] Sent: 31. januar 2003 16:11 To: rsgb_lf_group@blacksheep.org Subject: LF: Re: R: I5TGC Hello Cesare I write a column each month for the RSGB magazine, RadCom, called 'Antennas'. I often get letters from readers who ask 'what is the best commercial antenna to use if you have only a small garden or no garden at all and talk about the impossability of operating on the lower frequency bands from such a QTH. I would like to describe your lower frequency antennas as an example of what can be done to overcome these difficulties. I would like to use the description from your web page (or any other information that you might have). Do you have some higher resolution images that could be used. In general a .JPG image needs to be over 100k in size to be reproduced in a magazine. Many thanks Peter, G3LDO e-mail Web From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 16965 invoked from network); 31 Jan 2003 16:32:20 -0000 Received: from warrior.services.quay.plus.net (212.159.14.227) by mailstore with SMTP; 31 Jan 2003 16:32:20 -0000 Received: (qmail 16156 invoked from network); 31 Jan 2003 16:32:21 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from post.thorcom.com (193.82.116.70) by warrior.services.quay.plus.net with SMTP; 31 Jan 2003 16:32:20 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18ee4j-0002oe-00 for rsgb_lf_group-outgoing@blacksheep.org; Fri, 31 Jan 2003 16:31:33 +0000 Received: from [193.212.240.200] (helo=virus-in.online.no) by post.thorcom.com with esmtp (Exim 4.12) id 18ee4i-0002oU-00 for rsgb_lf_group@blacksheep.org; Fri, 31 Jan 2003 16:31:32 +0000 Received: from [134.47.162.190] by virus-in.online.no with ESMTP; Fri, 31 Jan 2003 17:31:01 +0100 Received: from tns-fbu-22-215.corp.telenor.no ([134.47.162.192]) by tns-fbu-22-209.corp.telenor.no with Microsoft SMTPSVC(5.0.2195.4453); Fri, 31 Jan 2003 17:31:00 +0100 Received: from tns-fbu-22-213.corp.telenor.no ([134.47.162.191]) by tns-fbu-22-215.corp.telenor.no with Microsoft SMTPSVC(5.0.2195.4453); Fri, 31 Jan 2003 17:31:00 +0100 Received: from TNS-FBU-2E-003.corp.telenor.no ([134.47.164.101]) by tns-fbu-22-213.corp.telenor.no with Microsoft SMTPSVC(5.0.2195.4453); Fri, 31 Jan 2003 17:31:00 +0100 content-class: urn:content-classes:message X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Date: Fri, 31 Jan 2003 17:30:59 +0100 Message-ID: <2D280BB697C7EE4C979C5C89925418EFB05AB6@TNS-FBU-2E-003.corp.telenor.no> X-MS-Has-Attach: yes Thread-Topic: Re: R: I5TGC Thread-Index: AcLJPVxEpOPCBAj7Qs+otWl9EYNLZwABpyeQ From: jan-martin.noding@telenor.com To: rsgb_lf_group@blacksheep.org Cc: la8ak@online.no X-OriginalArrivalTime: 31 Jan 2003 16:31:00.0022 (UTC) FILETIME=[237F1560:01C2C946] MIME-Version: 1.0 Subject: LF: RE: Re: R: I5TGC Content-Type: multipart/mixed; boundary="------------060203000909060509070307" X-Spam-Status: No, hits=2.4 required=6.0tests=NO_REAL_NAME,SPAM_PHRASE_03_05version=2.43 X-Spam-Level: ** 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false This is a multi-part message in MIME format. --------------060203000909060509070307 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 8bit well, gif type files are smaller, don't really understand why it should be jpg? 73, Jan-Martin --- J M Nøding, Kristiansand -----Original Message----- From: g3ldo [mailto:g3ldo@ukonline.co.uk] Sent: 31. januar 2003 16:11 To: rsgb_lf_group@blacksheep.org Subject: LF: Re: R: I5TGC Hello Cesare I write a column each month for the RSGB magazine, RadCom, called 'Antennas'. I often get letters from readers who ask 'what is the best commercial antenna to use if you have only a small garden or no garden at all and talk about the impossability of operating on the lower frequency bands from such a QTH. I would like to describe your lower frequency antennas as an example of what can be done to overcome these difficulties. I would like to use the description from your web page (or any other information that you might have). Do you have some higher resolution images that could be used. In general a .JPG image needs to be over 100k in size to be reproduced in a magazine. Many thanks Peter, G3LDO e-mail Web --------------060203000909060509070307 Content-Type: image/gif; name="QTH.gif" Content-Transfer-Encoding: base64 Content-Disposition: inline; filename="QTH.gif" R0lGODdhNQLjAPcAAAAAAACuAP///wECAwECAwECAwECAwECAwECAwECAwECAwECAwECAwEC AwECAwECAwECAwECAwECAwECAwECAwECAwECAwECAwECAwECAwECAwECAwECAwECAwECAwEC AyIC+38BAAAA7PQSAKdC6HeoPBMAPj8YAEA/GAC2YR4A1mEeAOBzGgCk9hIAAAAAAAAAXy2o AF8t4PQSADz2EgDM9RIAAAAAACD1EgCmN/h3AABfLQEAAAACAAAArPUSAKgAXy0AEF8t2CNf LQEAAABHTvh3CQQAAAAQXy1o9RIAJAAAAMAp+HcAABMASA0TACQAAABoeBMAQPUSAAACAAD8 9hIAp537dwgq+Hf/////DPcSAL6x/HdIDRMAAAAAAAAAAAAo+hIAAQAAAAIAAADU9RIApPYS ACx5AAAAAAAACQQAABgVXy0JBAAAAAAAALAwXy2gmQEA2CNfLQAAAAABAAAAzPUSAAAAAAA4 9RIAPPYSAAAAAACnnft3oJkBAP////8AEF8tjPUSALD/EgBE9hIAp537d9hQ+Hf/////VPYS ADVR+HcAAF8tsDBfLTj2EgAAAAAAzErodwAAXy2wMF8tOPYSAAAAAACk9hIALHkAAAAAAACw MF8tEAAAAAkAAACo9hIA/gAAAGz2EgDJKOF3aFtIAP4AAACE9hIA7m5gLRIAAAAAAAAA/gAA AAAAAACY9hIA/CrhdwAAAADubmAtCQAAAKj2EgAJAAAAAAAAAHZbSADK0EcADrUTAKC0EwA7 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aYqQJPhFOfenbhpEp3ZHtKeJedp9UPprLNqeiXimT3qoMXooSXeFLopmFokaqX0iVnzpqJga a6ZYPJfaqcF0QKSGGaqiKmzlSZOfd6qsGiQ62aqwGquyOqu0Wqu2equ4mqu6uqu82qu++qvA GqzCOqx7NnPmaYJ2JJqrSGu6MnOrSqzTaXHJGY9OiZBkCK15UmoSWXHg6Ihc4q0hGXeCuKi7 6nISJDx5OYrPuoWQ2K7YupoFR2V8+HyEWTxiWZXyqm1lBa65FhAAOw== --------------060203000909060509070307-- From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 18592 invoked from network); 31 Jan 2003 15:32:21 -0000 Received: from netmail02.services.quay.plus.net (212.159.14.221) by mailstore with SMTP; 31 Jan 2003 15:32:21 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: (qmail 14016 invoked by uid 10001); 31 Jan 2003 15:32:21 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com (193.82.116.70) by netmail02.services.quay.plus.net with SMTP; 31 Jan 2003 15:32:21 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18ed8u-0002Sn-00 for rsgb_lf_group-outgoing@blacksheep.org; Fri, 31 Jan 2003 15:31:48 +0000 Received: from [213.218.77.54] (helo=cmailENV2.svr.pol.co.uk) by post.thorcom.com with esmtp (Exim 4.12) id 18ed8t-0002Se-00 for rsgb_lf_group@blacksheep.org; Fri, 31 Jan 2003 15:31:47 +0000 Received: from [62.21.138.95] (helo=w8k3f0.freeler.nl) by cmailENV2.svr.pol.co.uk with esmtp (Exim 3.35 #1) id 18ed8r-0002fn-00 for rsgb_lf_group@blacksheep.org; Fri, 31 Jan 2003 15:31:46 +0000 Message-ID: <5.1.0.14.0.20030131161232.00a14980@POP3.freeler.nl> X-Sender: FRE0000086604@POP3.freeler.nl X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Fri, 31 Jan 2003 16:18:38 +0100 To: "LF-Group" From: "Dick Rollema" MIME-Version: 1.0 Subject: LF: Magazine articles on LF Content-Type: text/html; charset=windows-1252 X-Spam-Status: No, hits=0.8 required=6.0tests=SPAM_PHRASE_00_01version=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Content-transfer-encoding: 8bit To All from PA0SE

Practical Wireless of January 2003 contains the following article:

"Rugby Radio - Serving Britain For 75 Years", by Stan Brown, G4LU.

In RadCom of February 2003 you will find:

"A Class-D Transmitter for 136kHz"; The concluding part of the 300W design by David Bowman, G0MRF.

73, Dick, PA0SE

From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 28431 invoked from network); 31 Jan 2003 15:17:07 -0000 Received: from murphys.services.quay.plus.net (212.159.14.225) by mailstore with SMTP; 31 Jan 2003 15:17:07 -0000 Received: (qmail 10075 invoked from network); 31 Jan 2003 15:17:02 -0000 Received: from post.thorcom.com (193.82.116.70) by murphys.services.quay.plus.net with SMTP; 31 Jan 2003 15:17:02 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18ecpE-0002K7-00 for rsgb_lf_group-outgoing@blacksheep.org; Fri, 31 Jan 2003 15:11:28 +0000 Received: from [212.135.6.14] (helo=smarthost4.mail.uk.easynet.net) by post.thorcom.com with esmtp (Exim 4.12) id 18ecpD-0002Jy-00 for rsgb_lf_group@blacksheep.org; Fri, 31 Jan 2003 15:11:27 +0000 Received: from tnt-5-11.easynet.co.uk ([195.40.200.11] helo=erica) by smarthost4.mail.uk.easynet.net with smtp (Exim 4.10) id 18ecp8-000Os9-00 for rsgb_lf_group@blacksheep.org; Fri, 31 Jan 2003 15:11:23 +0000 Message-ID: <000b01c2c93b$6d8ce980$0bc828c3@erica> From: "g3ldo" To: rsgb_lf_group@blacksheep.org References: <000c01c2a79b$175dfc00$53e4fc3e@l8p8y6> <002f01c2a7a2$18434ec0$28676ec3@cestag> Date: Fri, 31 Jan 2003 15:11:28 -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: Re: R: I5TGC Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.8 required=6.0tests=REFERENCES,SPAM_PHRASE_03_05,USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Hello Cesare I write a column each month for the RSGB magazine, RadCom, called 'Antennas'. I often get letters from readers who ask 'what is the best commercial antenna to use if you have only a small garden or no garden at all and talk about the impossability of operating on the lower frequency bands from such a QTH. I would like to describe your lower frequency antennas as an example of what can be done to overcome these difficulties. I would like to use the description from your web page (or any other information that you might have). Do you have some higher resolution images that could be used. In general a .JPG image needs to be over 100k in size to be reproduced in a magazine. Many thanks Peter, G3LDO e-mail Web From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 9130 invoked from network); 29 Jan 2003 19:55:14 -0000 Received: from netmail01.services.quay.plus.net (212.159.14.219) by mailstore with SMTP; 29 Jan 2003 19:55:14 -0000 Received: (qmail 15386 invoked by uid 10001); 29 Jan 2003 19:55:14 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail01.services.quay.plus.net with SMTP; 29 Jan 2003 19:55:14 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18dyHk-0002gV-00 for rsgb_lf_group-outgoing@blacksheep.org; Wed, 29 Jan 2003 19:54:12 +0000 Received: from [194.73.73.93] (helo=rhenium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.12) id 18dyHk-0002gM-00 for rsgb_lf_group@blacksheep.org; Wed, 29 Jan 2003 19:54:12 +0000 Received: from host213-122-3-150.in-addr.btopenworld.com ([213.122.3.150] helo=lap42) by rhenium.btinternet.com with smtp (Exim 3.22 #16) id 18dyHi-0002TB-00 for rsgb_lf_group@blacksheep.org; Wed, 29 Jan 2003 19:54:10 +0000 From: "John W Gould" To: rsgb_lf_group@blacksheep.org Date: Wed, 29 Jan 2003 19:54:41 -0000 Message-ID: MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.6604 (9.0.2911.0) Importance: Normal In-reply-to: <007401c2c7a8$c7a4e1a0$02000a0a@user> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: RE: Re: IARU Region 1 position on 500kHz Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=-1.0 required=6.0tests=DEAR_SOMEBODY,IN_REP_TO,QUOTED_EMAIL_TEXT,SPAM_PHRASE_01_02version=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Arnie, nice to hear from you again and your comments on 500kHz are welcome. I think that we all recognise that it's not yet quite the time to expect to get an allocation at this part of the spectrum, however, that shouldn't cause us not to prepare and see if there are some small areas where we might gain some sort of agreement to undertake some experiments. I think we all agree that it would prove an interesting frequency between 1.8MHz and 136kHz. Re. you interest in trying to secure a 136kHz allocation prior to WRC03. I should be in the position to help you with information of which Region 1 countries have implemented CEPT/ERC Recommendation 62-01 E (Mainz 1997), however, I don't have a complete list. I have posted this reply to the reflector in the hope that someone on the reflector can help us by providing a list or pointing to a URL. The other point that I would stress is that the IARU Region 1 discussion on 500kHz made it quite clear that they would not want to press for anything at 500kHz prior or at WRC03; the IARU will only consider the 500kHz Working Group's recommendations after WRC03. I have note your interest in receiving status/updates of the Working Group's activity, which I am sure will not be a problem. 73 John, G3WKL > -----Original Message----- > From: owner-rsgb_lf_group@blacksheep.org > [mailto:owner-rsgb_lf_group@blacksheep.org]On Behalf Of Prof. Arnaldo > Coro Antich > Sent: Wednesday, January 29, 2003 13:27 > To: rsgb_lf_group@blacksheep.org > Cc: John W Gould > Subject: LF: Re: IARU Region 1 position on 500kHz > > > Dear John: > We have heard about similar interests related to an allocation around 500 > kHz. But I must advise that many Third World nations are still using that > segment of the spectrum for maritime communications. > Recent efforts to try to obtain a 600 meters band assignment by > amateurs in > neighboring countries came to a standstill when their telecommunications > administrations replied that this was not possible because the segment was > still in use for maritime communications. > It would be very interesting and useful to have access to any > documentation > that Region I and Region III IARU coordinators may have, in order to > approach our telecommunications administration regarding the preparations > for the upcoming WARC 2003 to take place in Geneva later this year. > I believe that one solid argument backing the request would be > the succesful > use of the 136 kiloHertz band by amateurs in many different countries, and > along that line, I would like to request information regarding > the number of > countries in Region I already authorized to operate on 136 > kiloHertz at this > moment. > We Cuban amateurs are trying to obtain our 136 kiloHertz band before WARC > 2003 takes place, and would like to have the 600 meters assignment too !!! > My personal experience participating at ITU conferences is that > this efforts > require great coordination and to be worked well in advance of the actual > WARC 2003.... > 73 and DX > YOur friend in Havana > CO2KK > > ----- Original Message ----- > From: "John W Gould" > To: "Rsgb_Lf_Group@Blacksheep.Org" > Cc: "HF. Chairman List Member" ; "Vk4du@Gmdss. > Com. Au" > Sent: Wednesday, January 29, 2003 3:24 AM > Subject: LF: IARU Region 1 position on 500kHz > > > > My apologies for not bringing to this group's attention before > the outcome > > of a discussion of the RSGB paper on 500kHz, at the San Marino Region 1 > > Conference. AMRAD have usefully summarised the position with the > following > > in their Jan-Feb 2003 Newsletter, which I quote with their agreement: > > > > "G3PSM chaired a working group of ON7ZV, PA0SHY, PA0AWN, ZL2AMJ > and G4OUT. > > The result was the adoption of Recommendation REC/02/SMC4.11, > as follows: > > > > A Working Group would be formed to investigate the possibility of a > > frequency allocation of approximately 10kHz between 470-490kHz to > > investigate propagation and the use of new communication > technologies. A > > progress report should be circulated to the secretaries of Region 2 and > > Region 3 for information." > > > > I would add to that statement a comment to me from Colin, G3PSM on his > > return that we should be looking in a post-WRC2003 timeframe to > come back > > with proposals in relation to this part of the spectrum, thus this is a > > long-term issue. > > > > As IARU Region 1 LF Coordinator I have assumed some responsibility for > > forming a "500kHz Working Group" and have approached a few > people to lead > > such a group. This has been without success, so I put the > question to the > > LF Group - Can I have volunteers please to work in a group, using e-mail > and > > a dedicated website, to carry out the task detailed by the above IARU > Region > > 1 recommendation. Once a group has been formed it can choose its > > chairperson. I would like to see an international membership of > the Group, > > hence the need to conduct business over the Internet. Meeting together > > would be expensive and probably difficult to arrange. Volunteers should > > e-mail me directly rather than post to the reflector. > > > > This e-mail has been copied to Colin, G3PSM and also Glenn, VK4DU (for > > Region 3). > > > > 73 John, G3WKL > > g3wkl@btinternet.com > > > > > > > > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 20634 invoked from network); 29 Jan 2003 16:16:35 -0000 Received: from marstons.services.quay.plus.net (212.159.14.223) by mailstore with SMTP; 29 Jan 2003 16:16:35 -0000 Received: (qmail 13357 invoked by uid 10001); 29 Jan 2003 16:16:31 -0000 Received: from post.thorcom.com (193.82.116.70) by marstons.services.quay.plus.net with SMTP; 29 Jan 2003 16:16:31 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18duoK-00027b-00 for rsgb_lf_group-outgoing@blacksheep.org; Wed, 29 Jan 2003 16:11:36 +0000 Received: from [206.49.67.1] (helo=mxb.etecsa.net) by post.thorcom.com with esmtp (Exim 4.12) id 18duoH-00027S-00 for rsgb_lf_group@blacksheep.org; Wed, 29 Jan 2003 16:11:34 +0000 Received: (from daemon@localhost) by mxb.etecsa.net (8.9.3+Sun/8.9.3) id LAA07390; Wed, 29 Jan 2003 11:11:28 -0500 (EST) Received: from ppp-inforhc.pppn.etecsa.cu(10.10.0.2), claiming to be "user" via SMTP by mxb.etecsa.net, id smtpdAAA3ga4uo; Wed Jan 29 11:11:23 2003 Message-ID: <007401c2c7a8$c7a4e1a0$02000a0a@user> From: "Prof. Arnaldo Coro Antich" To: rsgb_lf_group@blacksheep.org Cc: "John W Gould" References: Date: Wed, 29 Jan 2003 09:27:20 -0400 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: IARU Region 1 position on 500kHz Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=-0.2 required=6.0tests=DEAR_SOMEBODY,QUOTED_EMAIL_TEXT,REFERENCES, SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Dear John: We have heard about similar interests related to an allocation around 500 kHz. But I must advise that many Third World nations are still using that segment of the spectrum for maritime communications. Recent efforts to try to obtain a 600 meters band assignment by amateurs in neighboring countries came to a standstill when their telecommunications administrations replied that this was not possible because the segment was still in use for maritime communications. It would be very interesting and useful to have access to any documentation that Region I and Region III IARU coordinators may have, in order to approach our telecommunications administration regarding the preparations for the upcoming WARC 2003 to take place in Geneva later this year. I believe that one solid argument backing the request would be the succesful use of the 136 kiloHertz band by amateurs in many different countries, and along that line, I would like to request information regarding the number of countries in Region I already authorized to operate on 136 kiloHertz at this moment. We Cuban amateurs are trying to obtain our 136 kiloHertz band before WARC 2003 takes place, and would like to have the 600 meters assignment too !!! My personal experience participating at ITU conferences is that this efforts require great coordination and to be worked well in advance of the actual WARC 2003.... 73 and DX YOur friend in Havana CO2KK ----- Original Message ----- From: "John W Gould" To: "Rsgb_Lf_Group@Blacksheep.Org" Cc: "HF. Chairman List Member" ; "Vk4du@Gmdss. Com. Au" Sent: Wednesday, January 29, 2003 3:24 AM Subject: LF: IARU Region 1 position on 500kHz > My apologies for not bringing to this group's attention before the outcome > of a discussion of the RSGB paper on 500kHz, at the San Marino Region 1 > Conference. AMRAD have usefully summarised the position with the following > in their Jan-Feb 2003 Newsletter, which I quote with their agreement: > > "G3PSM chaired a working group of ON7ZV, PA0SHY, PA0AWN, ZL2AMJ and G4OUT. > The result was the adoption of Recommendation REC/02/SMC4.11, as follows: > > A Working Group would be formed to investigate the possibility of a > frequency allocation of approximately 10kHz between 470-490kHz to > investigate propagation and the use of new communication technologies. A > progress report should be circulated to the secretaries of Region 2 and > Region 3 for information." > > I would add to that statement a comment to me from Colin, G3PSM on his > return that we should be looking in a post-WRC2003 timeframe to come back > with proposals in relation to this part of the spectrum, thus this is a > long-term issue. > > As IARU Region 1 LF Coordinator I have assumed some responsibility for > forming a "500kHz Working Group" and have approached a few people to lead > such a group. This has been without success, so I put the question to the > LF Group - Can I have volunteers please to work in a group, using e-mail and > a dedicated website, to carry out the task detailed by the above IARU Region > 1 recommendation. Once a group has been formed it can choose its > chairperson. I would like to see an international membership of the Group, > hence the need to conduct business over the Internet. Meeting together > would be expensive and probably difficult to arrange. Volunteers should > e-mail me directly rather than post to the reflector. > > This e-mail has been copied to Colin, G3PSM and also Glenn, VK4DU (for > Region 3). > > 73 John, G3WKL > g3wkl@btinternet.com > > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 16891 invoked from network); 29 Jan 2003 07:28:02 -0000 Received: from netmail02.services.quay.plus.net (212.159.14.221) by mailstore with SMTP; 29 Jan 2003 07:28:02 -0000 Received: (qmail 19746 invoked by uid 10001); 29 Jan 2003 07:28:02 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail02.services.quay.plus.net with SMTP; 29 Jan 2003 07:28:01 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18dmZb-0000VO-00 for rsgb_lf_group-outgoing@blacksheep.org; Wed, 29 Jan 2003 07:23:51 +0000 Received: from [194.73.73.116] (helo=lutetium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.12) id 18dmZb-0000VF-00 for rsgb_lf_group@blacksheep.org; Wed, 29 Jan 2003 07:23:51 +0000 Received: from host213-1-128-24.in-addr.btopenworld.com ([213.1.128.24] helo=presario-1920) by lutetium.btinternet.com with smtp (Exim 3.22 #16) id 18dmZZ-0003yr-00; Wed, 29 Jan 2003 07:23:50 +0000 From: "John W Gould" To: "Rsgb_Lf_Group@Blacksheep.Org" Cc: "HF. Chairman List Member" , "Vk4du@Gmdss. Com. Au" Date: Wed, 29 Jan 2003 07:24:20 -0000 Message-ID: MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.6604 (9.0.2911.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Importance: Normal Subject: LF: IARU Region 1 position on 500kHz Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=1.0 required=6.0tests=SPAM_PHRASE_00_01,TO_ADDRESS_EQ_REALversion=2.43 X-Spam-Level: * 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false My apologies for not bringing to this group's attention before the outcome of a discussion of the RSGB paper on 500kHz, at the San Marino Region 1 Conference. AMRAD have usefully summarised the position with the following in their Jan-Feb 2003 Newsletter, which I quote with their agreement: "G3PSM chaired a working group of ON7ZV, PA0SHY, PA0AWN, ZL2AMJ and G4OUT. The result was the adoption of Recommendation REC/02/SMC4.11, as follows: A Working Group would be formed to investigate the possibility of a frequency allocation of approximately 10kHz between 470-490kHz to investigate propagation and the use of new communication technologies. A progress report should be circulated to the secretaries of Region 2 and Region 3 for information." I would add to that statement a comment to me from Colin, G3PSM on his return that we should be looking in a post-WRC2003 timeframe to come back with proposals in relation to this part of the spectrum, thus this is a long-term issue. As IARU Region 1 LF Coordinator I have assumed some responsibility for forming a "500kHz Working Group" and have approached a few people to lead such a group. This has been without success, so I put the question to the LF Group - Can I have volunteers please to work in a group, using e-mail and a dedicated website, to carry out the task detailed by the above IARU Region 1 recommendation. Once a group has been formed it can choose its chairperson. I would like to see an international membership of the Group, hence the need to conduct business over the Internet. Meeting together would be expensive and probably difficult to arrange. Volunteers should e-mail me directly rather than post to the reflector. This e-mail has been copied to Colin, G3PSM and also Glenn, VK4DU (for Region 3). 73 John, G3WKL g3wkl@btinternet.com From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 24439 invoked from network); 28 Jan 2003 21:36:27 -0000 Received: from netmail02.services.quay.plus.net (212.159.14.221) by mailstore with SMTP; 28 Jan 2003 21:36:27 -0000 Received: (qmail 12455 invoked by uid 10001); 28 Jan 2003 21:36:27 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from post.thorcom.com (193.82.116.70) by netmail02.services.quay.plus.net with SMTP; 28 Jan 2003 21:36:27 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18ddK1-0007Z0-00 for rsgb_lf_group-outgoing@blacksheep.org; Tue, 28 Jan 2003 21:31:09 +0000 Received: from [193.212.240.200] (helo=virus-out.ttyl.com) by post.thorcom.com with esmtp (Exim 4.12) id 18ddK1-0007Yr-00 for rsgb_lf_group@blacksheep.org; Tue, 28 Jan 2003 21:31:09 +0000 Received: from [134.47.162.190] by virus-in.online.no with ESMTP for rsgb_lf_group@blacksheep.org; Tue, 28 Jan 2003 22:30:38 +0100 Received: from tns-fbu-22-214.corp.telenor.no ([134.47.162.92]) by tns-fbu-22-209.corp.telenor.no with Microsoft SMTPSVC(5.0.2195.4453); Tue, 28 Jan 2003 22:30:38 +0100 Received: from tns-fbu-22-212.corp.telenor.no ([134.47.162.91]) by tns-fbu-22-214.corp.telenor.no with Microsoft SMTPSVC(5.0.2195.4453); Tue, 28 Jan 2003 22:30:38 +0100 Received: from TNS-FBU-2E-003.corp.telenor.no ([134.47.164.201]) by tns-fbu-22-212.corp.telenor.no with Microsoft SMTPSVC(5.0.2195.4453); Tue, 28 Jan 2003 22:30:37 +0100 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 content-class: urn:content-classes:message Date: Tue, 28 Jan 2003 22:30:37 +0100 Message-ID: <2D280BB697C7EE4C979C5C89925418EF1BF5AC@TNS-FBU-2E-003.corp.telenor.no> Thread-Topic: Siemens D2006 Thread-Index: AcLG94yaFO4I7TLOSQ+gfMIb1DYnkgAG+mLQ From: jan-martin.noding@telenor.com To: rsgb_lf_group@blacksheep.org X-OriginalArrivalTime: 28 Jan 2003 21:30:37.0882 (UTC) FILETIME=[7FE591A0:01C2C714] MIME-Version: 1.0 Subject: LF: SV: Siemens D2006 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=1.8 required=6.0tests=NO_REAL_NAME,SPAM_PHRASE_01_02version=2.43 X-Spam-Level: * 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Hi 'LF-Group'! Could scan some pages if you know what you are after, but have so much demand for copies of Racal and other receivers that I can't overcome. For the DIN-socket it not much to find, only an overview which tells the colour of the wire from one board to the SKT. Think it is a problem with manuals because too often people request copies, and later throw it in the bin and sell the equipment, but tell the next person where they believe they could get the manual from, so I would like better to pass the material to somebody like K4XL Kenneth who runs a site for manuals, in this case it is for boatanchors... 73 Jan-Martin PS. never really understand why somebody don't require the handbooks for their equipment --- J M Noeding LA8AK, Kristiansand *** mailto:la8ak@online.no *** -----Opprinnelig melding----- Fra: James Moritz [mailto:j.r.moritz@herts.ac.uk] Sendt: 28. januar 2003 18:48 Til: rsgb_lf_group@blacksheep.org Emne: LF: Siemens D2006 Dear LF Group, I recently acquired a Siemens D2006 selective voltmeter, with the accompanying W2006 generator. Does anybody have manuals or circuit diagrams for these units that I could borrow/copy etc? Naturally, I would be happy to cover any costs involved. Cheers, Jim Moritz 73 de M0BMU From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 28228 invoked from network); 28 Jan 2003 17:51:55 -0000 Content-Transfer-Encoding: 8bit Received: from murphys.services.quay.plus.net (212.159.14.225) by mailstore with SMTP; 28 Jan 2003 17:51:55 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: (qmail 17023 invoked from network); 28 Jan 2003 17:51:51 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com (193.82.116.70) by murphys.services.quay.plus.net with SMTP; 28 Jan 2003 17:51:51 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18dZso-00070p-00 for rsgb_lf_group-outgoing@blacksheep.org; Tue, 28 Jan 2003 17:50:50 +0000 Received: from [147.197.200.9] (helo=hestia.herts.ac.uk) by post.thorcom.com with esmtp (Exim 4.12) id 18dZso-00070g-00 for rsgb_lf_group@blacksheep.org; Tue, 28 Jan 2003 17:50:50 +0000 Received: from gemini ([147.197.200.44] helo=gemini.herts.ac.uk) by hestia.herts.ac.uk with esmtp (Exim 3.22 #1) id 18dZs3-0006cp-00 for rsgb_lf_group@blacksheep.org; Tue, 28 Jan 2003 17:50:03 +0000 Received: from [147.197.232.252] (helo=rsch-15.herts.ac.uk) by gemini.herts.ac.uk with esmtp (Exim 3.33 #1) id 18dZs1-000664-00 for rsgb_lf_group@blacksheep.org; Tue, 28 Jan 2003 17:50:01 +0000 Message-ID: <5.1.0.14.0.20030128173710.00aee3c0@gemini.herts.ac.uk> X-Sender: mj9ar@gemini.herts.ac.uk X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Tue, 28 Jan 2003 17:47:57 +0000 To: rsgb_lf_group@blacksheep.org From: "James Moritz" MIME-Version: 1.0 X-MailScanner: No Virus detected Subject: LF: Siemens D2006 Content-Type: text/plain; charset=us-ascii; format=flowed X-Spam-Status: No, hits=0.8 required=6.0tests=SPAM_PHRASE_00_01version=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Dear LF Group, I recently acquired a Siemens D2006 selective voltmeter, with the accompanying W2006 generator. Does anybody have manuals or circuit diagrams for these units that I could borrow/copy etc? Naturally, I would be happy to cover any costs involved. Cheers, Jim Moritz 73 de M0BMU From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 10319 invoked from network); 28 Jan 2003 11:44:39 -0000 Received: from murphys.services.quay.plus.net (212.159.14.225) by mailstore with SMTP; 28 Jan 2003 11:44:39 -0000 Received: (qmail 4192 invoked from network); 28 Jan 2003 11:44:36 -0000 Received: from post.thorcom.com (193.82.116.70) by murphys.services.quay.plus.net with SMTP; 28 Jan 2003 11:44:36 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18dU8q-0005sB-00 for rsgb_lf_group-outgoing@blacksheep.org; Tue, 28 Jan 2003 11:43:00 +0000 Received: from [212.159.14.221] (helo=netmail02.services.quay.plus.net) by post.thorcom.com with smtp (Exim 4.12) id 18dU8q-0005s2-00 for rsgb_lf_group@blacksheep.org; Tue, 28 Jan 2003 11:43:00 +0000 Received: (qmail 19052 invoked from network); 28 Jan 2003 10:48:41 -0000 Received: from unknown (HELO eastwood.plus.net) (192.168.126.104) by netmail02.services.quay.plus.net with SMTP; 28 Jan 2003 10:48:41 -0000 Received: (qmail 28107 invoked from network); 28 Jan 2003 10:34:44 -0000 Received: from netmail02.services.quay.plus.net (212.159.14.221) by mailstore with SMTP; 28 Jan 2003 10:34:44 -0000 Received: (qmail 14824 invoked from network); 28 Jan 2003 09:38:42 -0000 Received: from ctuash.sonnetinternet.co.uk (HELO hugh) (212.159.90.113) by netmail02.services.quay.plus.net with SMTP; 28 Jan 2003 09:38:42 -0000 Message-ID: <000f01c2c6b0$f5ea1e20$0504210a@c.scope> From: "Hugh M0WYE" To: rsgb_lf_group@blacksheep.org References: <2D280BB697C7EE4C979C5C89925418EFB05A50@TNS-FBU-2E-003.corp.telenor.no> Date: Tue, 28 Jan 2003 09:38:01 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Hummmm Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.5 required=6.0tests=REFERENCES,SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Hi Group, Like many just starting out with LF, I'm using an audio amplifier to transmit with. I had a bit of a surprise when tinkering about with it. I had connected a loudspeaker to the output and put a 1kHz signal through as a confidence check, that the amp was working ok. Afterwards I reconnected the antenna, before removing the loudspeaker. As I did so there was a horrible hum - well buzz really, since I have reduced the size of coupling capacitors to give it less gain at low frequencies. It didn't take long to realise that there was a big earth loop. The signal source is referenced to mains earth, and when I connected the aerial (and earth) the amplifier was also connected to RF earth. I have cured the problem by introducing a transformer between the signal source and the amplifier, but I wouldn't have realised that the amplifier was trying to amplify both 136kHz and huge amounts of 50Hz at the same time. If I had a (working) oscilloscope, I would probably have spotted the problem earlier, but it's not something that I expected. I did make me wonder whether hum had a bearing on the mysterious FET and fuse blowing problems with the BK amplifiers - but I expect large amounts of hum would have been quickly noticed when the problem was investigated. 73 Hugh M0WYE From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 22851 invoked from network); 28 Jan 2003 10:08:10 -0000 Received: from warrior.services.quay.plus.net (212.159.14.227) by mailstore with SMTP; 28 Jan 2003 10:08:10 -0000 Received: (qmail 13877 invoked from network); 28 Jan 2003 10:08:10 -0000 Received: from post.thorcom.com (193.82.116.70) by warrior.services.quay.plus.net with SMTP; 28 Jan 2003 10:08:09 -0000 X-Priority: 3 X-MSMail-Priority: Normal X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18dSZO-0005VK-00 for rsgb_lf_group-outgoing@blacksheep.org; Tue, 28 Jan 2003 10:02:18 +0000 Received: from [193.212.240.200] (helo=virus-out.ttyl.com) by post.thorcom.com with esmtp (Exim 4.12) id 18dSZN-0005VB-00 for rsgb_lf_group@blacksheep.org; Tue, 28 Jan 2003 10:02:17 +0000 Received: from [134.47.162.90] by virus-in.online.no with ESMTP; Tue, 28 Jan 2003 11:01:45 +0100 Received: from tns-fbu-22-214.corp.telenor.no ([134.47.162.92]) by tns-fbu-22-208.corp.telenor.no with Microsoft SMTPSVC(5.0.2195.4453); Tue, 28 Jan 2003 11:01:44 +0100 Received: from tns-fbu-22-213.corp.telenor.no ([134.47.162.191]) by tns-fbu-22-214.corp.telenor.no with Microsoft SMTPSVC(5.0.2195.4453); Tue, 28 Jan 2003 11:01:44 +0100 Received: from TNS-FBU-2E-003.corp.telenor.no ([134.47.164.201]) by tns-fbu-22-213.corp.telenor.no with Microsoft SMTPSVC(5.0.2195.4453); Tue, 28 Jan 2003 11:01:43 +0100 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 content-class: urn:content-classes:message Date: Tue, 28 Jan 2003 11:01:43 +0100 Message-ID: <2D280BB697C7EE4C979C5C89925418EFB05A84@TNS-FBU-2E-003.corp.telenor.no> Thread-Topic: TEA6200 Thread-Index: AcLGc+mnPRlr7xoFSv+P7nzLHXQ6zQAP0OPA From: jan-martin.noding@telenor.com To: rsgb_lf_group@blacksheep.org Cc: ov709@smgroup.net, torp@networks.nera.no X-OriginalArrivalTime: 28 Jan 2003 10:01:43.0831 (UTC) FILETIME=[42E1EA70:01C2C6B4] MIME-Version: 1.0 Subject: LF: LF Field strength meter using Philips TEA6200... Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=1.3 required=6.0tests=NO_REAL_NAME,QUOTED_EMAIL_TEXT,SPAM_PHRASE_00_01version=2.43 X-Spam-Level: * 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Seems TEA6200 is an interesting device for making the field strength meter, somewhat different from PAøSE Dick's, but I believe it could be easy. Hope to get some samples for test. TEA6200 has a highlevel mixer and intended to upconvert the VLF signal, a simple xtal filter could easily be made on 3.58, 4.43361875, 8.667, or other frequencies for cheap xtals 73 Jan-Martin LA8AK ----- Original Message ----- From: "VLAD" To: "J M Noeding" Sent: Friday, June 28, 2002 4:47 PM Subject: TEA6200 > Hi JM, > > Have you used this IC: TEA6200 from Philips? > > http://www-us9.semiconductors.com/acrobat/datasheets/TEA6200_CNV_2.pdf > > Looks good for ham Rx. > > vlad > kb9olm From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 6022 invoked from network); 26 Jan 2003 20:31:50 -0000 Received: from warrior.services.quay.plus.net (212.159.14.227) by mailstore with SMTP; 26 Jan 2003 20:31:50 -0000 Received: (qmail 15698 invoked from network); 26 Jan 2003 20:31:47 -0000 Received: from post.thorcom.com (193.82.116.70) by warrior.services.quay.plus.net with SMTP; 26 Jan 2003 20:31:47 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18ctMs-00008Z-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 26 Jan 2003 20:27:02 +0000 Received: from [212.135.6.10] (helo=smarthost0.mail.uk.easynet.net) by post.thorcom.com with esmtp (Exim 4.12) id 18ctMs-00008Q-00 for rsgb_lf_group@blacksheep.org; Sun, 26 Jan 2003 20:27:02 +0000 Received: from tnt-6-14.easynet.co.uk ([195.40.201.14] helo=erica) by smarthost0.mail.uk.easynet.net with smtp (Exim 4.10) id 18ctMr-000Gii-00 for rsgb_lf_group@blacksheep.org; Sun, 26 Jan 2003 20:27:01 +0000 Message-ID: <000901c2c579$ab79dc00$0ec928c3@erica> From: "g3ldo" To: rsgb_lf_group@blacksheep.org References: <000701c2c1a7$1a6dd520$331686d4@erica> Date: Sun, 26 Jan 2003 20:20:24 -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: LF: LF Activity Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.5 required=6.0tests=REFERENCES,SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false I think that most of you know that I have to fold my antenna mast over during the day because of planning restrictions. This means that I get to transmit on LF a good deal less than I would like to. However I do listen on 136 using my loop. Today I heard OK1DTN tuning up with a big signal and then calling CQ a few times. I couldn't resist the temptation to raise the mast and give him a call. If you heard some strange CW coming from G3LDO this morning the reeason is because when I came to plug in the electronic keyer I found that its battery was flat so I used the QRSS system on 0.1 second dots, a very cumbersom CW operating procedure. Nevertheless we did have a QSO. Worked G3XIZ and F6CNI late this afternoon. Regards, Peter, G3LDO e-mail Web From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 28699 invoked from network); 26 Jan 2003 14:34:22 -0000 Content-Transfer-Encoding: 8bit Received: from warrior.services.quay.plus.net (212.159.14.227) by mailstore with SMTP; 26 Jan 2003 14:34:22 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: (qmail 3503 invoked from network); 26 Jan 2003 14:34:19 -0000 Received: from post.thorcom.com (193.82.116.70) by warrior.services.quay.plus.net with SMTP; 26 Jan 2003 14:34:19 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18cnr2-0007jL-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 26 Jan 2003 14:33:48 +0000 Received: from [147.197.200.9] (helo=hestia.herts.ac.uk) by post.thorcom.com with esmtp (Exim 4.12) id 18cnr1-0007jC-00 for rsgb_lf_group@blacksheep.org; Sun, 26 Jan 2003 14:33:47 +0000 Received: from gemini ([147.197.200.44] helo=gemini.herts.ac.uk) by hestia.herts.ac.uk with esmtp (Exim 3.22 #1) id 18cnqv-0004BP-00 for rsgb_lf_group@blacksheep.org; Sun, 26 Jan 2003 14:33:41 +0000 Received: from [147.197.232.252] (helo=rsch-15.herts.ac.uk) by gemini.herts.ac.uk with esmtp (Exim 3.33 #1) id 18cnqk-0005Tp-00 for rsgb_lf_group@blacksheep.org; Sun, 26 Jan 2003 14:33:30 +0000 Message-ID: <5.1.0.14.0.20030126131003.00aedc80@gemini.herts.ac.uk> X-Sender: mj9ar@gemini.herts.ac.uk X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Sun, 26 Jan 2003 14:33:24 +0000 To: rsgb_lf_group@blacksheep.org From: "James Moritz" In-reply-to: <001201c2c4a2$f7f26840$e6d9043e@mh70i> MIME-Version: 1.0 X-MailScanner: No Virus detected Subject: Re: LF: TX with LOOP Content-Type: text/plain; charset=us-ascii; format=flowed X-Spam-Status: No, hits=0.1 required=6.0tests=DEAR_SOMEBODY,IN_REP_TO,SPAM_PHRASE_00_01version=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Dear Werner, LF Group, At 19:52 25/01/2003 +0100, you wrote: >At first sight it work FB >Loop perimeter is 85 meters and 12 meters above ground >Series coil is 1.5 mH series cap is home made butterfly 280 pf >plate space is 20mm, current in the circuit is 3.5 Amp >Cap and coil are in the shack , and two wires are going >out through the wall widely spaced from the wall, and so >straight to the loop . >In the shack it smells like ozone Hi You didn't say exactly how the tuning components and TX are connected to the loop - but it seems to me that if there is a significant voltage between the loop wire and ground, the antenna could actually be operating as a vertical tuned against ground. Obviously the antenna radiates quite well, but it is not clear that it is actually radiating in a horizontal loop mode - 3.5A seems a low current for a loop antenna to radiate much signal. The highest possible radiation resistance would occur if the loop were circular - in that case the area would be 575m^2, giving Rrad of 0.44milliohms, and a very optimistic estimate of ERP of maybe 10mW, assuming none is dissipated in the ground or environment. I expect the loop will have an inductance between 100 - 200uH; If both the 1.5mH coil and 280p capacitor are connected in series with one terminal of the loop, and the other terminal is near ground potential, the loop wire will be at a low potential (with 3.5A , some 100's of volts maximum), and there will be little radiation in "vertical" mode. But if this is the case, with total L of 1.7mH, and C of 280p, resonant frequency will be about 230kHz or slightly more. If, on the other hand, the inductor is connected to one terminal of the loop, and the capacitor to the other, the whole loop wire will be at high potential, and there will be a large "displacement current" flowing to ground through the antenna capacitance, so one would expect the antenna to be operating primarily as a vertical. In this condition, the capacitance to ground of the loop wire would effectively be in parallel with the 280p tuning capacitance. Estimating this to be 6pF/m, 85m of wire gives 510pF, so 790pF total capacitance. With 1.5mH inductance, this gives a resonant frequency of 146kHz, much nearer reality! There will be additional capacitance due to the connections to the shack, which would bring the resonant frequency to 136k. In this condition, the voltage on the loop wire would be roughly 4.5kV, and the antenna would be predominantly acting as a vertical, giving roughly 300mW ERP, again assuming no environmental losses. Cheers, Jim Moritz 73 de M0BMU From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 11993 invoked from network); 26 Jan 2003 14:15:22 -0000 Received: from warrior.services.quay.plus.net (212.159.14.227) by mailstore with SMTP; 26 Jan 2003 14:15:22 -0000 Received: (qmail 21185 invoked from network); 26 Jan 2003 14:15:20 -0000 Received: from post.thorcom.com (193.82.116.70) by warrior.services.quay.plus.net with SMTP; 26 Jan 2003 14:15:20 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18cnYS-0007dH-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 26 Jan 2003 14:14:36 +0000 Received: from [195.238.3.90] (helo=excalibur.skynet.be) by post.thorcom.com with esmtp (Exim 4.12) id 18cnYS-0007d8-00 for rsgb_lf_group@blacksheep.org; Sun, 26 Jan 2003 14:14:36 +0000 Received: from mh70i ([62.4.216.222]) by excalibur.skynet.be (8.11.6/8.11.6/Skynet-OUT-2.20) with SMTP id h0QEEWZ18110 for ; Sun, 26 Jan 2003 15:14:32 +0100 (MET) (envelope-from ) Message-ID: <000d01c2c545$56192920$ded8043e@mh70i> From: "DE BONDT WERNER" To: rsgb_lf_group@blacksheep.org Date: Sun, 26 Jan 2003 15:15:09 +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 Subject: LF: Loop next test Content-Type: text/html; charset=windows-1252 X-Spam-Status: No, hits=1.0 required=6.0tests=SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 X-Spam-Level: * 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Content-transfer-encoding: 8bit

Hi all

Thanks for the reply on my loop.

But wait to build a loop antenna Hi

Since I was not sure about my loop was a real loop.

Because de junction coil-capacitor was still grounded .

I made averting floating, and coupled the TX by a link.

So averting was disconnected from the ground now.

The configuration is now.

One end from the loop to the coil--from the coil to capacitor

than via the Amp meter to other end of the loop, and power in the

coil via the link.

Now I could only drive with abt 75 Watts, because of arcing in the cap

but still 3,5 Amp in the circuit .

Now big flames all over but no QSO . So Loops still on the side .

Close but no cigar , keep on trying

73 Werner ON6ND

To day I hear many times a test carrier more ore less strong ,

pleas attach a call-singe

From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 32408 invoked from network); 26 Jan 2003 12:29:58 -0000 Received: from murphys.services.quay.plus.net (212.159.14.225) by mailstore with SMTP; 26 Jan 2003 12:29:58 -0000 Received: (qmail 14453 invoked from network); 26 Jan 2003 12:29:55 -0000 Received: from post.thorcom.com (193.82.116.70) by murphys.services.quay.plus.net with SMTP; 26 Jan 2003 12:29:54 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18cluO-0007Lg-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 26 Jan 2003 12:29:08 +0000 Received: from [212.135.6.10] (helo=smarthost0.mail.uk.easynet.net) by post.thorcom.com with esmtp (Exim 4.12) id 18cluN-0007LX-00 for rsgb_lf_group@blacksheep.org; Sun, 26 Jan 2003 12:29:07 +0000 Received: from tnt-18-230.easynet.co.uk ([212.134.224.230] helo=erica) by smarthost0.mail.uk.easynet.net with smtp (Exim 4.10) id 18cluM-000CqL-00 for rsgb_lf_group@blacksheep.org; Sun, 26 Jan 2003 12:29:07 +0000 Message-ID: <000401c2c536$e8a79d80$e6e086d4@erica> From: "g3ldo" To: rsgb_lf_group@blacksheep.org References: <000001c2c4cf$96331640$6507a8c0@Main> Date: Sun, 26 Jan 2003 12:29:37 -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 Tx with loop Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=-0.6 required=6.0tests=QUOTED_EMAIL_TEXT,REFERENCES,SPAM_PHRASE_01_02, USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Regarding ON4ND's horizontal loop Alan G3NYK said: > . My estimation is that he was about 2 S points > down on the strength I normally hear him. Thus 559 against his usual 579 on > the vertical. This report seems to be confirmed by Dave G3YXMs comments. The EZNEC model gave it about -40dBi in free space. Above ground it was worse at -50dBi, - so bad that I suspected the model. 80m of wire 12m high is a lot of wire in the air. If configured as a Marconi we get -30dBi even with poor ground. > To Peter > A take off at 45 degrees is not actually too clever, as it then puts the > signal back down again just 100kms further on !! (Check the geometry with a > 50km reflecting D-Layer.) In fact it is likely to give fading in the 300 to > 400kms region. The fact that there was no sign (as far as I could tell) of > fading on Werner suggests that the high angle radiation was just totally > lost in absorption in the D-layer. To use "skywave" effectively one has to > "aim" at the horizon. (see the Simple Geometry page on my web site) as only > grazing incidence waves are returned in daytime. Yes Alan, you are right. In fact the marconi antenna over poor ground has a maximum gain elevation angle of 15 degrees. Over good ground it is 12 degrees with the above antenna having a gain of -24dBi. These figures do not take into account electromagnetic obstructions or other enviomental absorbsion. Regards, Peter, G3LDO e-mail Web From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 7521 invoked from network); 26 Jan 2003 07:53:58 -0000 Received: from netmail01.services.quay.plus.net (212.159.14.219) by mailstore with SMTP; 26 Jan 2003 07:53:58 -0000 Received: (qmail 14821 invoked by uid 10001); 26 Jan 2003 07:53:58 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail01.services.quay.plus.net with SMTP; 26 Jan 2003 07:53:58 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18chXh-0006kc-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 26 Jan 2003 07:49:25 +0000 Received: from [62.253.162.45] (helo=mta05-svc.ntlworld.com) by post.thorcom.com with esmtp (Exim 4.12) id 18chXh-0006kT-00 for rsgb_lf_group@blacksheep.org; Sun, 26 Jan 2003 07:49:25 +0000 Received: from oemcomputer ([81.96.126.89]) by mta05-svc.ntlworld.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with SMTP id <20030126074923.OCSS900.mta05-svc.ntlworld.com@oemcomputer> for ; Sun, 26 Jan 2003 07:49:23 +0000 Message-ID: <001601c2c50f$a176e460$597e6051@oemcomputer> From: "Mike Dennison" To: rsgb_lf_group@blacksheep.org References: <001201c2c4a2$f7f26840$e6d9043e@mh70i> Date: Sun, 26 Jan 2003 07:50:43 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: TX with LOOP Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.5 required=6.0tests=REFERENCES,SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Is this an inductively loaded DDRR antenna? Mike, G3XDV http://www.lf.thersgb.net ================= ----------------------------------- Just made a test with a horizontal loop antenna and made QSO with F6BWO--F6CNI--DL3FDO At first sight it work FB Loop perimeter is 85 meters and 12 meters above ground Series coil is 1.5 mH series cap is home made butterfly 280 pf plate space is 20mm, current in the circuit is 3.5 Amp Cap and coil are in the shack , and two wires are going out through the wall widely spaced from the wall, and so straight to the loop . 73 Werner ON6ND From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 1490 invoked from network); 26 Jan 2003 00:15:20 -0000 Received: from netmail01.services.quay.plus.net (212.159.14.219) by mailstore with SMTP; 26 Jan 2003 00:15:20 -0000 Received: (qmail 2114 invoked by uid 10001); 26 Jan 2003 00:15:20 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail01.services.quay.plus.net with SMTP; 26 Jan 2003 00:15:20 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18caQo-0004HI-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 26 Jan 2003 00:13:50 +0000 Received: from [194.73.73.111] (helo=gadolinium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.12) id 18caQo-0004H9-00 for rsgb_lf_group@blacksheep.org; Sun, 26 Jan 2003 00:13:50 +0000 Received: from host213-122-14-59.in-addr.btopenworld.com ([213.122.14.59] helo=Main) by gadolinium.btinternet.com with smtp (Exim 3.22 #16) id 18caQn-0007DW-00 for rsgb_lf_group@blacksheep.org; Sun, 26 Jan 2003 00:13:49 +0000 Message-ID: <000001c2c4cf$96331640$6507a8c0@Main> From: "Alan Melia" To: "LF-Group" Date: Sat, 25 Jan 2003 23:51:23 -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 Tx with loop Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.7 required=6.0tests=SPAM_PHRASE_01_02,USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Hi all, I have already replied direct to Werner. I heard his transmissions today and as he is a regular and almost a "local" to me was able to give at least an "audible" report. My estimation is that he was about 2 S points down on the strength I normally hear him. Thus 559 against his usual 579 on the vertical. This report seems to be confirmed by Dave G3YXMs comments. To Peter A take off at 45 degrees is not actually too clever, as it then puts the signal back down again just 100kms further on !! (Check the geometry with a 50km reflecting D-Layer.) In fact it is likely to give fading in the 300 to 400kms region. The fact that there was no sign (as far as I could tell) of fading on Werner suggests that the high angle radiation was just totally lost in absorption in the D-layer. To use "skywave" effectively one has to "aim" at the horizon. (see the Simple Geometry page on my web site) as only grazing incidence waves are returned in daytime. Still it nice to see someone has had the energy and bottle to try it!! Well done Werner. How about rotating it vertical next....and give us a warning so we can be sure to be listening. It seemed very quiet today only 6 callsigns on my pad. I think it is possible that LA1TN is listening this weekend so the is every possibility of a report from Norway (Trondheim I think).....but not if you dont transmit !! 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 24509 invoked from network); 25 Jan 2003 23:25:24 -0000 Received: from warrior.services.quay.plus.net (212.159.14.227) by mailstore with SMTP; 25 Jan 2003 23:25:24 -0000 Received: (qmail 28555 invoked from network); 25 Jan 2003 23:25:26 -0000 Received: from post.thorcom.com (193.82.116.70) by warrior.services.quay.plus.net with SMTP; 25 Jan 2003 23:25:25 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18cZfM-00043O-00 for rsgb_lf_group-outgoing@blacksheep.org; Sat, 25 Jan 2003 23:24:48 +0000 Received: from [212.135.6.10] (helo=smarthost0.mail.uk.easynet.net) by post.thorcom.com with esmtp (Exim 4.12) id 18cZfM-00043F-00 for rsgb_lf_group@blacksheep.org; Sat, 25 Jan 2003 23:24:48 +0000 Received: from tnt-2-238.easynet.co.uk ([195.40.196.238] helo=erica) by smarthost0.mail.uk.easynet.net with smtp (Exim 4.10) id 18cZfL-000MMX-00 for rsgb_lf_group@blacksheep.org; Sat, 25 Jan 2003 23:24:47 +0000 Message-ID: <000101c2c4c9$5659ee00$eec428c3@erica> From: "g3ldo" To: rsgb_lf_group@blacksheep.org References: <001201c2c4a2$f7f26840$e6d9043e@mh70i> Date: Sat, 25 Jan 2003 23:18:31 -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: TX with LOOP Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.5 required=6.0tests=REFERENCES,SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Werner ON6ND said ---------------------------------------------- Just made a test with a horizontal loop antenna and made QSO with F6BWO--F6CNI--DL3FDO At first sight it work FB Loop perimeter is 85 meters and 12 meters above ground Series coil is 1.5 mH series cap is home made butterfly 280 pf plate space is 20mm, current in the circuit is 3.5 Amp Cap and coil are in the shack , and two wires are going out through the wall widely spaced from the wall, and so straight to the loop . In the shack it smells like ozone Hi --------------------------------------------- Interesting! Most loops tried in the past have been vertical because then you only need two supporting masts. If this antenna is square or a rectangle then you will need four. I tried making an EZNEC model of this antenna but the results are not reliable for two reasons: the antenna is an electrically small loop and it is electrically very close to the ground. Even a free space model seemed quite lossy (-40+dBi). For what its worth changing the quality of ground material had little effect on a ground model; unlike a Marconi. The other characteristic is that the greatest gain was at 45 degrees - good sky wave. Not the sort of antenna a commercial station would use but it might be good for amateur sky-wave DX. Have the USA Lowfers tried this one out? Regards, Peter, G3LDO e-mail Web From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 18686 invoked from network); 25 Jan 2003 23:25:23 -0000 Received: from warrior.services.quay.plus.net (212.159.14.227) by mailstore with SMTP; 25 Jan 2003 23:25:23 -0000 Received: (qmail 28513 invoked from network); 25 Jan 2003 23:25:23 -0000 Received: from post.thorcom.com (193.82.116.70) by warrior.services.quay.plus.net with SMTP; 25 Jan 2003 23:25:23 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18cZfL-00043B-00 for rsgb_lf_group-outgoing@blacksheep.org; Sat, 25 Jan 2003 23:24:47 +0000 Received: from [212.135.6.10] (helo=smarthost0.mail.uk.easynet.net) by post.thorcom.com with esmtp (Exim 4.12) id 18cZfL-000432-00 for rsgb_lf_group@blacksheep.org; Sat, 25 Jan 2003 23:24:47 +0000 Received: from tnt-2-238.easynet.co.uk ([195.40.196.238] helo=erica) by smarthost0.mail.uk.easynet.net with smtp (Exim 4.10) id 18cZfK-000MMX-00 for rsgb_lf_group@blacksheep.org; Sat, 25 Jan 2003 23:24:46 +0000 Message-ID: <000001c2c4c9$559824a0$eec428c3@erica> From: "g3ldo" To: rsgb_lf_group@blacksheep.org References: <3E31A334.A36A778A@att.net> Date: Sat, 25 Jan 2003 22:02:20 -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: Plotting DCF39 in NC Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=-0.3 required=6.0tests=QUOTED_EMAIL_TEXT,REFERENCES,SPAM_PHRASE_00_01, USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Dexter W4DEX said: > I am now plotting DCF39's signal as received here in North Carolina. > The plots are uploaded at ten minuets intervals. Interesting to compare the signal strengths received by W4DEX with W3EEE. Both plots are similar with signal dips around 0200z and 0400z although the signal build up was later and the fade out earlier at W4DEX, as you might expect. Well done the USA 'team' - will give us valuable LF propagation data. Regards, Peter, G3LDO e-mail Web From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 4273 invoked from network); 25 Jan 2003 23:21:27 -0000 Received: from netmail02.services.quay.plus.net (212.159.14.221) by mailstore with SMTP; 25 Jan 2003 23:21:27 -0000 Received: (qmail 18494 invoked by uid 10001); 25 Jan 2003 23:21:27 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail02.services.quay.plus.net with SMTP; 25 Jan 2003 23:21:27 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18cZaq-00040l-00 for rsgb_lf_group-outgoing@blacksheep.org; Sat, 25 Jan 2003 23:20:08 +0000 Received: from [194.73.73.116] (helo=lutetium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.12) id 18cZaq-00040c-00 for rsgb_lf_group@blacksheep.org; Sat, 25 Jan 2003 23:20:08 +0000 Received: from host217-35-12-143.in-addr.btopenworld.com ([217.35.12.143] helo=dellboy) by lutetium.btinternet.com with smtp (Exim 3.22 #16) id 18cZaq-0002D3-00 for rsgb_lf_group@blacksheep.org; Sat, 25 Jan 2003 23:20:08 +0000 Message-ID: <002e01c2c4c8$710a9f20$1b00a8c0@dellboy> From: "Dave Pick" To: rsgb_lf_group@blacksheep.org References: <001201c2c4a2$f7f26840$e6d9043e@mh70i> Date: Sat, 25 Jan 2003 23:21:08 -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: TX with LOOP Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.5 required=6.0tests=REFERENCES,SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Werner. I heard your CQ, about 559. Sorry I was not able to transmit. I will look out for you tomorrow. 73 Dave G3YXM. ---------------- Just made a test with a horizontal loop antenna and made QSO with F6BWO--F6CNI--DL3FDO At first sight it work FB From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 25232 invoked from network); 25 Jan 2003 20:05:35 -0000 Received: from warrior.services.quay.plus.net (212.159.14.227) by mailstore with SMTP; 25 Jan 2003 20:05:35 -0000 Received: (qmail 5470 invoked from network); 25 Jan 2003 20:05:36 -0000 Received: from post.thorcom.com (193.82.116.70) by warrior.services.quay.plus.net with SMTP; 25 Jan 2003 20:05:35 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18cWXF-0003WW-00 for rsgb_lf_group-outgoing@blacksheep.org; Sat, 25 Jan 2003 20:04:13 +0000 Received: from [204.127.198.38] (helo=rwcrmhc51.attbi.com) by post.thorcom.com with esmtp (Exim 4.12) id 18cWXE-0003WC-00 for rsgb_lf_group@blacksheep.org; Sat, 25 Jan 2003 20:04:12 +0000 Received: from w1wv (c-24-131-168-203.mw.client2.attbi.com[24.131.168.203]) by rwcrmhc51.attbi.com (rwcrmhc51) with SMTP id <2003012520033505100h41kte>; Sat, 25 Jan 2003 20:03:35 +0000 Message-ID: <001201c2c4ad$95d5d380$cba88318@ne2.client2.attbi.com> From: "Denis Cote" To: rsgb_lf_group@blacksheep.org References: <001201c2c4a2$f7f26840$e6d9043e@mh70i> Date: Sat, 25 Jan 2003 15:08:53 -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: LF: Re: TX with LOOP Content-Type: text/html; charset=windows-1252 X-Spam-Status: No, hits=0.7 required=6.0tests=MAILTO_LINK,REFERENCES,SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Content-transfer-encoding: 8bit

COOL!!!!!

----- Original Message -----

From: DE BONDT WERNER

To: rsgb_lf_group@blacksheep.org

Sent: Saturday, January 25, 2003 1:52 PM

Subject: LF: TX with LOOP

Hello All

Just made a test with a horizontal loop antenna

and made QSO with F6BWO--F6CNI--DL3FDO

At first sight it work FB

Loop perimeter is 85 meters and 12 meters above ground

Series coil is 1.5 mH series cap is home made butterfly 280 pf

plate space is 20mm, current in the circuit is 3.5 Amp

Cap and coil are in the shack , and two wires are going

out through the wall widely spaced from the wall, and so

straight to the loop .

In the shack it smells like ozone Hi

More test later

73 Werner ON6ND

From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 24802 invoked from network); 25 Jan 2003 18:59:29 -0000 Received: from warrior.services.quay.plus.net (212.159.14.227) by mailstore with SMTP; 25 Jan 2003 18:59:29 -0000 Received: (qmail 25420 invoked from network); 25 Jan 2003 18:59:30 -0000 Received: from post.thorcom.com (193.82.116.70) by warrior.services.quay.plus.net with SMTP; 25 Jan 2003 18:59:30 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18cVRL-0003Kv-00 for rsgb_lf_group-outgoing@blacksheep.org; Sat, 25 Jan 2003 18:54:03 +0000 Received: from [195.238.3.90] (helo=excalibur.skynet.be) by post.thorcom.com with esmtp (Exim 4.12) id 18cVRL-0003Km-00 for rsgb_lf_group@blacksheep.org; Sat, 25 Jan 2003 18:54:03 +0000 Received: from mh70i ([62.4.217.230]) by excalibur.skynet.be (8.11.6/8.11.6/Skynet-OUT-2.20) with SMTP id h0PIqEZ04070 for ; Sat, 25 Jan 2003 19:52:16 +0100 (MET) (envelope-from ) Message-ID: <001201c2c4a2$f7f26840$e6d9043e@mh70i> From: "DE BONDT WERNER" To: rsgb_lf_group@blacksheep.org Date: Sat, 25 Jan 2003 19:52:09 +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 Subject: LF: TX with LOOP Content-Type: text/html; charset=windows-1252 X-Spam-Status: No, hits=1.0 required=6.0tests=SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 X-Spam-Level: * 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Content-transfer-encoding: 8bit

Hello All

Just made a test with a horizontal loop antenna

and made QSO with F6BWO--F6CNI--DL3FDO

At first sight it work FB

Loop perimeter is 85 meters and 12 meters above ground

Series coil is 1.5 mH series cap is home made butterfly 280 pf

plate space is 20mm, current in the circuit is 3.5 Amp

Cap and coil are in the shack , and two wires are going

out through the wall widely spaced from the wall, and so

straight to the loop .

In the shack it smells like ozone Hi

More test later

73 Werner ON6ND

From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 21879 invoked from network); 24 Jan 2003 22:13:14 -0000 Received: from netmail01.services.quay.plus.net (212.159.14.219) by mailstore with SMTP; 24 Jan 2003 22:13:14 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: (qmail 21165 invoked by uid 10001); 24 Jan 2003 22:13:13 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail01.services.quay.plus.net with SMTP; 24 Jan 2003 22:13:13 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18cC3M-0000j1-00 for rsgb_lf_group-outgoing@blacksheep.org; Fri, 24 Jan 2003 22:12:00 +0000 Received: from [194.25.134.82] (helo=mailout05.sul.t-online.com) by post.thorcom.com with esmtp (Exim 4.12) id 18cC3K-0000is-00 for rsgb_lf_group@blacksheep.org; Fri, 24 Jan 2003 22:11:58 +0000 Received: from fwd08.sul.t-online.de by mailout05.sul.t-online.com with smtp id 18cC3J-0004Go-03; Fri, 24 Jan 2003 23:11:57 +0100 Received: from (0482183881-0001@[62.155.225.239]) by fwd08.sul.t-online.com with smtp id 18cC35-0pScTIC; Fri, 24 Jan 2003 23:11:43 +0100 From: "jannsen" <0482183881-0001@t-online.de> To: rsgb_lf_group@blacksheep.org References: <3E314BE4.5020603@usa.net> X-Mailer: T-Online eMail 2.34 MIME-Version: 1.0 Date: Fri, 24 Jan 2003 23:11:43 +0100 Message-ID: <18cC35-0pScTIC@fwd08.sul.t-online.com> X-Sender: 0482183881-0001@t-dialin.net Subject: Re: LF: DCF39 protocol Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.1 required=6.0tests=FROM_ENDS_IN_NUMS,FROM_STARTS_WITH_NUMS,QUOTED_EMAIL_TEXT, REFERENCES,SPAM_PHRASE_00_01,USER_AGENT_TONLINEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Alberto di Bene schrieb: > Good afternoon all, > > may be this is old hat for some of you, but if you are interested in the > protocol DCF39 uses for its signalling, go here : > http://longwave.bei.t-online.de/Efr.pdf > > 73 Alberto I2PHD > > Hi Alberto, tks for the hint. Klaus makes a good job of listing and describing lf stations, doesn`t he. regards Uwe/dj8wx From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 17223 invoked from network); 24 Jan 2003 20:38:18 -0000 Received: from warrior.services.quay.plus.net (212.159.14.227) by mailstore with SMTP; 24 Jan 2003 20:38:18 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: (qmail 6302 invoked from network); 24 Jan 2003 20:38:19 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com (193.82.116.70) by warrior.services.quay.plus.net with SMTP; 24 Jan 2003 20:38:19 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18cAWH-0000RH-00 for rsgb_lf_group-outgoing@blacksheep.org; Fri, 24 Jan 2003 20:33:45 +0000 Received: from [166.82.1.69] (helo=host4.ctc.net) by post.thorcom.com with esmtp (Exim 4.12) id 18cAWG-0000R8-00 for rsgb_lf_group@blacksheep.org; Fri, 24 Jan 2003 20:33:45 +0000 Received: from att.net ([166.82.181.250]) by host4.ctc.net (InterMail vK.4.03.05.03 201-232-132-103 license 2d687b22c655f23831a2faa19b737467) with ESMTP id <20030124203504.OOD5098.host4@att.net> for ; Fri, 24 Jan 2003 15:35:04 -0500 Message-ID: <3E31A334.A36A778A@att.net> Date: Fri, 24 Jan 2003 20:33:56 +0000 From: "Dexter McIntyre W4DEX" X-Mailer: Mozilla 4.77 [en] (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: "RSGB LF" Subject: LF: Plotting DCF39 in NC Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.5 required=6.0tests=SPAM_PHRASE_00_01,USER_AGENT_MOZILLA_XM,X_ACCEPT_LANGversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false I am now plotting DCF39's signal as received here in North Carolina. The plots are uploaded at ten minuets intervals. The latest plot can be accessed from my main web page at: http://www.w4dex.com/ Or go directly to the plot at: http://www.w4dex.com/plot/dcf39/dcf39.gif The daily plots will be stored in the directory: http://www.w4dex.com/plot/dcf39/ These plots are in .gif format as suggested by Steve, W3EEE. Looks good to me and saves a little bandwidth. Dexter From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 7412 invoked from network); 24 Jan 2003 15:20:06 -0000 Content-Transfer-Encoding: 8bit Received: from netmail02.services.quay.plus.net (212.159.14.221) by mailstore with SMTP; 24 Jan 2003 15:20:06 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: (qmail 5199 invoked by uid 10001); 24 Jan 2003 15:20:06 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail02.services.quay.plus.net with SMTP; 24 Jan 2003 15:20:06 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18c5cE-0007vr-00 for rsgb_lf_group-outgoing@blacksheep.org; Fri, 24 Jan 2003 15:19:34 +0000 Received: from [147.197.200.9] (helo=hestia.herts.ac.uk) by post.thorcom.com with esmtp (Exim 4.12) id 18c5cE-0007vi-00 for rsgb_lf_group@blacksheep.org; Fri, 24 Jan 2003 15:19:34 +0000 Received: from gemini ([147.197.200.44] helo=gemini.herts.ac.uk) by hestia.herts.ac.uk with esmtp (Exim 3.22 #1) id 18c5c4-00020w-00 for rsgb_lf_group@blacksheep.org; Fri, 24 Jan 2003 15:19:24 +0000 Received: from [147.197.232.252] (helo=rsch-15.herts.ac.uk) by gemini.herts.ac.uk with esmtp (Exim 3.33 #1) id 18c5c2-0005HC-00 for rsgb_lf_group@blacksheep.org; Fri, 24 Jan 2003 15:19:22 +0000 Message-ID: <5.1.0.14.0.20030124142752.00aed8b8@gemini.herts.ac.uk> X-Sender: mj9ar@gemini.herts.ac.uk X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Fri, 24 Jan 2003 15:19:19 +0000 To: rsgb_lf_group@blacksheep.org From: "James Moritz" In-reply-to: MIME-Version: 1.0 X-MailScanner: No Virus detected Subject: Re: LF: AW: VFO for VLF receiver? Digital type pre-mixer, any ideas? Content-Type: text/plain; charset=us-ascii; format=flowed X-Spam-Status: No, hits=0.4 required=6.0tests=DEAR_SOMEBODY,IN_REP_TO,SPAM_PHRASE_03_05version=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Dear Jan-Martin, LF group At 11:37 24/01/2003 +0100, you wrote: >Suppose I could use an FF, preferably CD4013 for the mixer. > >But I can't find any reference to similar constructions, only have a vague >memory that it has been mentioned in TT some time in the last 35 years A D-type flip-flop does work something like a mixer. If you feed 1MHz into the clock input, and 1.001MHz square wave into the D input, the output will approximately be a 1kHz square wave. The interesting thing is that you will also get the 1kHz square wave if the D input is 0.001, 0.999, 1.999, 2.001, 2.999, 3.001... nMHZ +/-1kHz. The D-type flip-flop effectively "samples" the logic level at the D input the moment the clock transition occurs - it works like a sample-and-hold with a square wave input, and no anti-aliasing filter (this analogue scheme is used in things like sampling scopes, modulation meters, vector voltmeters, etc., or optically with a stroboscope). The trouble is that, since it is effectively mixing the square wave input with a train of impulses at the clock frequency, and low pass filtering the result, the output spectrum contains many harmonic and non-harmonic components as well as the desired output. These are easy to filter out if the difference frequency is much smaller than either input frequency, but if you try to use the sum frequency output, or the output frequency is comparable to the input frequency, the output waveform is roughly a square wave but with substantial pulse-width modulation, which would be difficult to filter to get a clean VFO signal. So for your mixer-VFO, a conventional mixer would work better. Cheers, Jim Moritz 73 de M0BMU From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 8327 invoked from network); 24 Jan 2003 14:23:01 -0000 Received: from netmail01.services.quay.plus.net (212.159.14.219) by mailstore with SMTP; 24 Jan 2003 14:23:01 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: (qmail 10206 invoked by uid 10001); 24 Jan 2003 14:23:00 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com (193.82.116.70) by netmail01.services.quay.plus.net with SMTP; 24 Jan 2003 14:23:00 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18c4iH-0007iD-00 for rsgb_lf_group-outgoing@blacksheep.org; Fri, 24 Jan 2003 14:21:45 +0000 Received: from [165.212.11.112] (helo=cmsrelay03.mx.net) by post.thorcom.com with smtp (Exim 4.12) id 18c4iG-0007i4-00 for rsgb_lf_group@blacksheep.org; Fri, 24 Jan 2003 14:21:44 +0000 Received: from uadvg128.cms.usa.net (HELO localhost) (165.212.11.128) by cmsoutbound.mx.net with SMTP; 24 Jan 2003 14:21:10 -0000 Received: from usa.net [213.217.167.212] by uadvg128.cms.usa.net (ASMTP/dibene@usa.net) via mtad (C8.MAIN.2.05) with ESMTP id 589HaXoVH0089M28; Fri, 24 Jan 2003 14:21:07 GMT Message-ID: <3E314BE4.5020603@usa.net> Date: Fri, 24 Jan 2003 15:21:24 +0100 From: "Alberto di Bene" User-Agent: Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.0.2) Gecko/20021120 Netscape/7.01 X-Accept-Language: en-us, en MIME-Version: 1.0 To: "LF Mailing List" Subject: LF: DCF39 protocol Content-Type: text/html; charset=windows-1252 X-Spam-Status: No, hits=-0.5 required=6.0tests=SPAM_PHRASE_00_01,USER_AGENT,USER_AGENT_MOZILLA_UA, X_ACCEPT_LANGversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Content-transfer-encoding: 8bit Good afternoon all,

may be this is old hat for some of you, but if you are interested in the
protocol DCF39 uses for its signalling, go here :
http://longwave.bei.t-online.de/Efr.pdf

73 Alberto I2PHD

From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 9778 invoked from network); 24 Jan 2003 10:44:09 -0000 Received: from netmail02.services.quay.plus.net (212.159.14.221) by mailstore with SMTP; 24 Jan 2003 10:44:09 -0000 Received: (qmail 16829 invoked by uid 10001); 24 Jan 2003 10:44:09 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from post.thorcom.com (193.82.116.70) by netmail02.services.quay.plus.net with SMTP; 24 Jan 2003 10:44:08 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18c1F3-00073x-00 for rsgb_lf_group-outgoing@blacksheep.org; Fri, 24 Jan 2003 10:39:21 +0000 Received: from [194.25.108.14] (helo=server06.mvnet.de ident=root) by post.thorcom.com with esmtp (Exim 4.12) id 18c1F3-00073m-00 for rsgb_lf_group@blacksheep.org; Fri, 24 Jan 2003 10:39:21 +0000 Received: from gtwf.mvnet.de (gtwf.mvnet.de [194.25.108.83]) by server06.mvnet.de (8.12.5/8.12.5) with ESMTP id h0OAdWHG025345 for ; Fri, 24 Jan 2003 11:39:32 +0100 Received: from falkenuge02.mvnet.de (gtwf-mgw.mvnet.de [192.168.0.3]) by gtwf.mvnet.de (8.12.6/) with SMTP id h0OAeCBp032646 for ; Fri, 24 Jan 2003 11:40:12 +0100 Received: from no.name.available by falkenuge02.mvnet.de via smtpd (for [192.168.0.10]) with SMTP; 24 Jan 2003 10:39:15 UT Received: from prox ([10.10.0.3]) by mgwl01.mgw.mvnet.de (8.12.5/8.12.5) with SMTP id h0OAcleR019164 for ; Fri, 24 Jan 2003 11:38:54 +0100 Received: from 10.254.1.1 by prox (InterScan E-Mail VirusWall NT); Fri, 24 Jan 2003 11:53:24 +0100 Received: from [194.1.2.8] by adlerauge-11.mvnet.de via smtpd (for [10.254.1.10]) with SMTP; 24 Jan 2003 10:35:47 UT Received: by UMNT02 with Internet Mail Service (5.5.2650.21) id ; Fri, 24 Jan 2003 11:37:11 +0100 Message-ID: From: v.wedelstaedt@um.mv-regierung.de To: rsgb_lf_group@blacksheep.org Date: Fri, 24 Jan 2003 11:37:11 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Subject: LF: AW: VFO for VLF receiver? Digital type pre-mixer, any ideas? Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=4.0 required=6.0tests=EXCHANGE_SERVER,FORGED_RCVD_TRAIL,NO_REAL_NAME, SPAM_PHRASE_00_01version=2.43 X-Spam-Level: **** 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Hi yes, any ideas, please look at www.mvnet.de/priv/vw/index~1.htm I will write any schematics and programs thes evening and on the weekend 01.Feb to the homepage 73 Eberhard -----Ursprüngliche Nachricht----- Von: jan-martin.noding@telenor.com [mailto:jan-martin.noding@telenor.com] Gesendet: Mittwoch, 22. Januar 2003 18:03 An: rsgb_lf_group@blacksheep.org Betreff: LF: VFO for VLF receiver? Digital type pre-mixer, any ideas? Hi planning to build a VFO for a boatanchor VLF receiver covering 50-140KHz, first IF is 169kHz and it was originally using xtal control. The VFO must cover 220-310kHz. The variation needs to 85kHz, and it seems easier to make a VFO above 1MHz, possibly Clapp oscillator (my favourite since everybody else disregard it!), might also try the Seiler. I thought of using a 2457.6MHz xtal and mix with VFO (ca 2MHz), and divide the output by two or more. Suppose I could use an FF, preferably CD4013 for the mixer. But I can't find any reference to similar constructions, only have a vague memory that it has been mentioned in TT some time in the last 35 years Wonder if somebody else have some experience in this, and will the mixer divide or just mix? 960kHz resonators are also readily available, but they won't pull much. 73 Jan-Martin --- J M Nøding, Datakvalitet, TTS, Kristiansand Telefon 0047-380-52660, 9077-7126 (QTH: 0047-380-87178) From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 29769 invoked from network); 23 Jan 2003 21:59:29 -0000 Received: from murphys.services.quay.plus.net (212.159.14.225) by mailstore with SMTP; 23 Jan 2003 21:59:29 -0000 Received: (qmail 11684 invoked from network); 23 Jan 2003 21:59:27 -0000 Received: from post.thorcom.com (193.82.116.70) by murphys.services.quay.plus.net with SMTP; 23 Jan 2003 21:59:26 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18bpGG-0005BM-00 for rsgb_lf_group-outgoing@blacksheep.org; Thu, 23 Jan 2003 21:51:48 +0000 Received: from [213.4.129.150] (helo=telesmtp2.mail.isp) by post.thorcom.com with esmtp (Exim 4.12) id 18bpGC-0005BD-00 for rsgb_lf_group@blacksheep.org; Thu, 23 Jan 2003 21:51:45 +0000 Received: from BI57429bankinter ([213.99.249.248]) by telesmtp2.mail.isp (terra.es) with ESMTP id H96SQ300.WMY for ; Thu, 23 Jan 2003 22:51:39 +0100 Message-ID: <001e01c2c329$8d8e8bc0$f8f963d5@BI57429bankinter> From: =?iso-8859-1?Q?Jos=E9_Manuel?= To: rsgb_lf_group@blacksheep.org References: <000c01c2c0b1$9d4cddc0$3eeafc3e@l8p8y6> Date: Thu, 23 Jan 2003 22:51:06 +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: Re: DXPEDITION Content-Type: text/html; charset=windows-1252 X-Spam-Status: No, hits=0.7 required=6.0tests=MAILTO_LINK,REFERENCES,SPAM_PHRASE_00_01,SUPERLONG_LINE, USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Content-transfer-encoding: 8bit

Hello Mal:

Do you think to transmit on QRSS3 for european QSO´s?

73 de José, EA1PX

----- Original Message -----

From: hamilton mal

To: rsgb_lf_group@blacksheep.org

Sent: Monday, January 20, 2003 7:26 PM

Subject: LF: DXPEDITION

I will be transmitting QRS during late evening/early morning for Transatlantic xband QSO'S. TX 135.922 and RX on HF 7030 Khz. I will not have email facilities so therefore please reply on HF, or tel nr 0774 808 8937.

From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 17447 invoked from network); 23 Jan 2003 10:38:12 -0000 Received: from murphys.services.quay.plus.net (212.159.14.225) by mailstore with SMTP; 23 Jan 2003 10:38:12 -0000 Received: (qmail 26057 invoked from network); 23 Jan 2003 10:38:01 -0000 Received: from post.thorcom.com (193.82.116.70) by murphys.services.quay.plus.net with SMTP; 23 Jan 2003 10:38:00 -0000 X-SQ: A X-Priority: 3 X-MSMail-Priority: Normal Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18beiL-0003Jh-00 for rsgb_lf_group-outgoing@blacksheep.org; Thu, 23 Jan 2003 10:36:05 +0000 Received: from [193.212.240.200] (helo=virus-in.online.no) by post.thorcom.com with esmtp (Exim 4.12) id 18beiK-0003JW-00 for rsgb_lf_group@blacksheep.org; Thu, 23 Jan 2003 10:36:04 +0000 Received: from [134.47.162.90] by virus-in.online.no with ESMTP for rsgb_lf_group@blacksheep.org; Thu, 23 Jan 2003 11:35:00 +0100 Received: from tns-fbu-22-214.corp.telenor.no ([134.47.162.92]) by tns-fbu-22-208.corp.telenor.no with Microsoft SMTPSVC(5.0.2195.4453); Thu, 23 Jan 2003 11:35:00 +0100 Received: from tns-fbu-22-213.corp.telenor.no ([134.47.162.191]) by tns-fbu-22-214.corp.telenor.no with Microsoft SMTPSVC(5.0.2195.4453); Thu, 23 Jan 2003 11:35:00 +0100 Received: from TNS-FBU-2E-003.corp.telenor.no ([134.47.164.201]) by tns-fbu-22-213.corp.telenor.no with Microsoft SMTPSVC(5.0.2195.4453); Thu, 23 Jan 2003 11:35:00 +0100 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 content-class: urn:content-classes:message Date: Thu, 23 Jan 2003 11:35:00 +0100 Message-ID: <2D280BB697C7EE4C979C5C89925418EFB05A50@TNS-FBU-2E-003.corp.telenor.no> X-MS-Has-Attach: yes Thread-Topic: Remote operated active antenna for 10kHz-40MHz Thread-Index: AcLCZhDTp2MWp5lXRkGphYIvbCU4ZwAY7L6A From: jan-martin.noding@telenor.com To: rsgb_lf_group@blacksheep.org X-OriginalArrivalTime: 23 Jan 2003 10:35:00.0017 (UTC) FILETIME=[14A2FA10:01C2C2CB] MIME-Version: 1.0 Subject: LF: Remote operated active antenna for 10kHz-40MHz (J310) Content-Type: multipart/mixed; boundary="------------060201080206080909060507" X-Spam-Status: No, hits=2.1 required=6.0tests=NO_REAL_NAME,SPAM_PHRASE_00_01version=2.43 X-Spam-Level: ** 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false This is a multi-part message in MIME format. --------------060201080206080909060507 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 8bit This is the recommended design for a broad-band amplifier, LA7MI has a very strong signal on 96MHz, so he added an RFC at the input to form a lowpassfilter. I do have very strong signal on CEPT TV Ch2 (48.25MHz) and followed LA7MI's recommendations, but also used a more lowfrequent core. Never tested the frequency range since I am only interested in 10-400kHz range. the JFET/PNP-type amplifier is NOT recommended for antenna amplifier, but of course useful for many other purposes, this J310 type was mentioned in Radcom some time in the autumn 2002 Used it earlier for frame antenna with a remote switch, too, but later discovered that it was no need for an amplifier (two cables; one for varactor tuning and one for power and signal). Now I have two cables, one for either antennas TIY050 is a transistor I don't know anything more than it is epoxy pnp and free. 73, Jan_Martin LA8AK (in JO38XC) N4623-Kristiansand (tel.: +47-380-87178 Home)(38052660 Work 90777126 Mobile) http://www.laud.no/la6nca/LA8AK/ --------------060201080206080909060507 Content-Type: image/gif; name="136aktivAnt1xxx.gif" Content-Transfer-Encoding: base64 Content-Disposition: inline; filename="136aktivAnt1xxx.gif" R0lGODdhvwPPAvcAAAAAAP///wAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA 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netmail01.services.quay.plus.net with SMTP; 22 Jan 2003 21:53:31 -0000 X-SQ: A X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18bShM-0001Lp-00 for rsgb_lf_group-outgoing@blacksheep.org; Wed, 22 Jan 2003 21:46:16 +0000 Received: from [64.12.136.8] (helo=imo-m05.mx.aol.com) by post.thorcom.com with esmtp (Exim 4.12) id 18bShI-0001LZ-00 for rsgb_lf_group@blacksheep.org; Wed, 22 Jan 2003 21:46:12 +0000 Received: from MarkusVester@aol.com by imo-m05.mx.aol.com (mail_out_v34.13.) id l.f.7ff3b12 (4328) for ; Wed, 22 Jan 2003 16:45:37 -0500 (EST) From: MarkusVester@aol.com Message-ID: Date: Wed, 22 Jan 2003 16:45:37 EST To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 X-Mailer: AOL 7.0 for Windows DE sub 10501 Subject: Re: LF: w3eee.com -10dB Content-Type: multipart/mixed; boundary="------------030202000707040107040704" X-Spam-Status: No, hits=1.6 required=6.0tests=NO_REAL_NAME,SPAM_PHRASE_01_02,USER_AGENT_AOLversion=2.43 X-Spam-Level: * 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false This is a multi-part message in MIME format. --------------030202000707040107040704 Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: 8bit Hi Steve and LF-Group,

thanks for inserting the 10dB-attenuation at W3EEE: last night's plot definitely proved it's value and allowed an evaluation of the path budget from Central Eu into the USA. During the -7dB-peak between 0630 and 0700, the noise curves apparently replicated the signal, supporting Steve's point that displayed SNR is actually limited (to about 30dB) by the modulation sidebands.

An extrapolation of the noise during the nearest troughs (about -43dB) would have given 36dB SNR at the peak. Gaining 16dB by going from 0.4Hz to 10mHz and allowing some 3dB for the peak-maximum-type noise evaluation, SNR from DCF's 40kW EMRP was 55dB. A 1W E(D)RP amateur station would have produced 48.5dB less signal or 6.5dB SNR, good enough for an "M" report. But, as Alan has said, a UK-to-East-Coast path could have been significantly stronger.

A detailed look on the sideband-spectrum during many FSK telegrams (see image) revealed a number of gaps where its intensity is another 30dB less than close to space frequency; good channels for noise measurements would be near 138563, 138634, 138765 or 138966Hz. Another approach might be to take a little advantage of the relatively short telegram duration by using true-rms averaging rather than peak-hold in the noise channels, although I'm not quite sure how to tell SpecLab to do just that.

73 de Markus, DF6NM
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MimeOLE V6.00.2800.1106 Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18bPhJ-0000tc-00 for rsgb_lf_group-outgoing@blacksheep.org; Wed, 22 Jan 2003 18:34:01 +0000 Received: from [152.163.225.99] (helo=imo-r03.mx.aol.com) by post.thorcom.com with esmtp (Exim 4.12) id 18bPhG-0000tT-00 for rsgb_lf_group@blacksheep.org; Wed, 22 Jan 2003 18:33:58 +0000 Received: from DL4YHF@aol.com by imo-r03.mx.aol.com (mail_out_v34.13.) id l.1e.7fa84c5 (3948) for ; Wed, 22 Jan 2003 13:33:22 -0500 (EST) From: DL4YHF@aol.com Message-ID: <1e.7fa84c5.2b603df2@aol.com> Date: Wed, 22 Jan 2003 13:33:22 EST To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 X-Mailer: AOL 6.0 for Windows XP DE sub 50 Subject: Re: LF: SB Audigy Card Content-Type: text/html; charset=windows-1252 X-Spam-Status: No, hits=1.6 required=6.0tests=NO_REAL_NAME,SPAM_PHRASE_01_02,USER_AGENT_AOLversion=2.43 X-Spam-Level: * 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Content-transfer-encoding: 8bit Hi Larry,

Spectrum Lab has been tested with the Audigy 2, the 96kHz sampling rate seems to work but the amplitudes are lower than expected (maybe some fiddling with 24-bit samples required). The "old" Audigy does not support 96kHz though the chip's specification says something different. So beware, if you want to process signals up to 48 kHz get the Audigy 2 and not the older Audigy.
All lower sampling rates (8000, 11025, 22050, 44100, 48000 Hz) work nicely. Other DSP programs surely will have no problems with these cards because none of the Windoze progs does direct hardware access these days.

Regards,
Wolf DL4YHF. From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 4289 invoked from network); 22 Jan 2003 17:03:58 -0000 Received: from murphys.services.quay.plus.net (212.159.14.225) by mailstore with SMTP; 22 Jan 2003 17:03:58 -0000 Received: (qmail 15868 invoked from network); 22 Jan 2003 17:03:54 -0000 Received: from post.thorcom.com (193.82.116.70) by murphys.services.quay.plus.net with SMTP; 22 Jan 2003 17:03:54 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18bOHS-0000cC-00 for rsgb_lf_group-outgoing@blacksheep.org; Wed, 22 Jan 2003 17:03:14 +0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from [193.212.240.200] (helo=virus-in.online.no) by post.thorcom.com with esmtp (Exim 4.12) id 18bOHR-0000c3-00 for rsgb_lf_group@blacksheep.org; Wed, 22 Jan 2003 17:03:13 +0000 Received: from [134.47.162.90] by virus-in.online.no with ESMTP for rsgb_lf_group@blacksheep.org; Wed, 22 Jan 2003 18:02:42 +0100 Received: from tns-fbu-22-215.corp.telenor.no ([134.47.162.192]) by tns-fbu-22-208.corp.telenor.no with Microsoft SMTPSVC(5.0.2195.4453); Wed, 22 Jan 2003 18:02:41 +0100 Received: from tns-fbu-22-213.corp.telenor.no ([134.47.162.191]) by tns-fbu-22-215.corp.telenor.no with Microsoft SMTPSVC(5.0.2195.4453); Wed, 22 Jan 2003 18:02:41 +0100 Received: from TNS-FBU-2E-003.corp.telenor.no ([134.47.164.201]) by tns-fbu-22-213.corp.telenor.no with Microsoft SMTPSVC(5.0.2195.4453); Wed, 22 Jan 2003 18:02:41 +0100 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 content-class: urn:content-classes:message Date: Wed, 22 Jan 2003 18:02:41 +0100 Message-ID: <2D280BB697C7EE4C979C5C89925418EFB05A4D@TNS-FBU-2E-003.corp.telenor.no> Thread-Topic: w3eee.com -10dB Thread-Index: AcLAzqvEaMIftDJWSV+nRahNrsZZZQBaBkhw From: jan-martin.noding@telenor.com To: rsgb_lf_group@blacksheep.org X-OriginalArrivalTime: 22 Jan 2003 17:02:41.0740 (UTC) FILETIME=[134A78C0:01C2C238] MIME-Version: 1.0 Subject: LF: VFO for VLF receiver? Digital type pre-mixer, any ideas? Content-Type: text/plain; charset=Windows-1252; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=2.1 required=6.0tests=NO_REAL_NAME,SPAM_PHRASE_00_01version=2.43 X-Spam-Level: ** 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Hi planning to build a VFO for a boatanchor VLF receiver covering 50-140KHz, first IF is 169kHz and it was originally using xtal control. The VFO must cover 220-310kHz. The variation needs to 85kHz, and it seems easier to make a VFO above 1MHz, possibly Clapp oscillator (my favourite since everybody else disregard it!), might also try the Seiler. I thought of using a 2457.6MHz xtal and mix with VFO (ca 2MHz), and divide the output by two or more. Suppose I could use an FF, preferably CD4013 for the mixer. But I can't find any reference to similar constructions, only have a vague memory that it has been mentioned in TT some time in the last 35 years Wonder if somebody else have some experience in this, and will the mixer divide or just mix? 960kHz resonators are also readily available, but they won't pull much. 73 Jan-Martin --- J M Nøding, Datakvalitet, TTS, Kristiansand Telefon 0047-380-52660, 9077-7126 (QTH: 0047-380-87178) From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 7323 invoked from network); 22 Jan 2003 16:24:40 -0000 Received: from warrior.services.quay.plus.net (212.159.14.227) by mailstore with SMTP; 22 Jan 2003 16:24:40 -0000 Received: (qmail 13179 invoked from network); 22 Jan 2003 16:24:40 -0000 Received: from post.thorcom.com (193.82.116.70) by warrior.services.quay.plus.net with SMTP; 22 Jan 2003 16:24:40 -0000 X-Priority: 3 X-MSMail-Priority: Normal X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18bNeo-0000RF-00 for rsgb_lf_group-outgoing@blacksheep.org; Wed, 22 Jan 2003 16:23:18 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from [165.212.11.110] (helo=cmsoutbound.mx.net) by post.thorcom.com with smtp (Exim 4.12) id 18bNen-0000R6-00 for rsgb_lf_group@blacksheep.org; Wed, 22 Jan 2003 16:23:17 +0000 Received: from uadvg129.cms.usa.net (HELO localhost) (165.212.11.129) by cmsoutbound.mx.net with SMTP; 22 Jan 2003 16:23:13 -0000 Received: from usa.net [213.217.175.177] by uadvg129.cms.usa.net (ASMTP/dibene@usa.net) via mtad (C8.MAIN.2.05) with ESMTP id 453HaVqXi0419M29; Wed, 22 Jan 2003 16:23:08 GMT Message-ID: <3E2EC567.2080403@usa.net> Date: Wed, 22 Jan 2003 17:23:03 +0100 From: "Alberto di Bene" User-Agent: Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.0.2) Gecko/20021120 Netscape/7.01 X-Accept-Language: en-us, en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <11a.1ceb118c.2b534ef7@aol.com> <5.2.0.9.0.20030121163457.00ad1cf0@pop2.sympatico.ca> Subject: Re: LF: Video Card, ATI Radeon 7500 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=-3.4 required=6.0tests=EMAIL_ATTRIBUTION,QUOTED_EMAIL_TEXT,REFERENCES, SPAM_PHRASE_00_01,USER_AGENT,USER_AGENT_MOZILLA_UA, X_ACCEPT_LANGversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Larry Kayser wrote: > Greetings again.... > > Does anyone in the LF community have any experience in using the ATI > Radeon 7500 Video Card, especially with the DSP processing programs? > > This card allows me to spread the Microsoft Desktop over two CRT's. > > Larry > VA3LK I have on my PC the Radeon 9000 128 Mb card, not exactly the same as yours, but rather similar. No problems whatsoever with any (DSP or not) programs. This with both Windows 98SE and Windows XP Pro. Not tested with Linux. I have the RedHat V8 CDs, but I haven't found the time so far to install it. 73 Alberto I2PHD P.S. Though the card allows for two monitors, I have used it with just one. From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 10471 invoked from network); 22 Jan 2003 12:33:39 -0000 Received: from murphys.services.quay.plus.net (212.159.14.225) by mailstore with SMTP; 22 Jan 2003 12:33:39 -0000 Received: (qmail 20438 invoked from network); 22 Jan 2003 12:32:47 -0000 Received: from post.thorcom.com (193.82.116.70) by murphys.services.quay.plus.net with SMTP; 22 Jan 2003 12:32:47 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18bJwZ-00085r-00 for rsgb_lf_group-outgoing@blacksheep.org; Wed, 22 Jan 2003 12:25:23 +0000 Received: from [194.73.73.147] (helo=einsteinium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.12) id 18bJwY-00085i-00 for rsgb_lf_group@blacksheep.org; Wed, 22 Jan 2003 12:25:22 +0000 Received: from host213-122-118-68.in-addr.btopenworld.com ([213.122.118.68] helo=Main) by einsteinium.btinternet.com with smtp (Exim 3.22 #16) id 18bJwX-00041G-00 for rsgb_lf_group@blacksheep.org; Wed, 22 Jan 2003 12:25:21 +0000 Message-ID: <000701c2c211$1d917620$6507a8c0@Main> From: "Alan Melia" To: "LF-Group" Date: Wed, 22 Jan 2003 12:23:11 -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: LF DX Propagation Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=1.0 required=6.0tests=SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 X-Spam-Level: * 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Hi all. Last nights plot from Steve was very interesting. Despite his reduction of the "gain" by some 10dB, DCF39 showed the highest recorded levels so far around 0600z. This is despite an small increase in the Kp recently. I think this probably indicates that the geomagnetic disturbance only produced the same effect as would be seen normally many days after a major storm. We have had a very quiet period through late December and into January. I believe that under these conditions a small increase in the ionisation in the D-layer due to a small number of precipated electrons from the minor disturbance has lead some multipath propagation, and some constructive interference. ( Of course I could be totally wrong !! ) I did suggest that the rise in the Kp to 4 would manifest itself by Tues/Wed , but I suggested increased absorption and deep troughs. There is little evidence of absorption but there are some sharp fading troughs, which would be expected when the different path phases are opposed. This is a "good omen" for the coming solar minimum !! It indicates to me that with a quiet sun, a small geomagnetic disturbance can be beneficial to long distance propagation. I believe that some coronal hole activity will continue through the quiet years whilst there may be few sunspots and flares. (I do need to try and check on this). It will be interesting to see the results from tonight (22/23rd) and tomorrow night as the Kp rose to 5 just after midnight on the 20th, and has had some further periods at 4. Good DXing 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 30935 invoked from network); 22 Jan 2003 00:44:03 -0000 Received: from warrior.services.quay.plus.net (212.159.14.227) by mailstore with SMTP; 22 Jan 2003 00:44:03 -0000 Received: (qmail 6398 invoked from network); 22 Jan 2003 00:43:15 -0000 Content-Transfer-Encoding: 8bit Received: from post.thorcom.com (193.82.116.70) by warrior.services.quay.plus.net with SMTP; 22 Jan 2003 00:43:15 -0000 X-Priority: 3 X-MSMail-Priority: Normal X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18b8yV-00066A-00 for rsgb_lf_group-outgoing@blacksheep.org; Wed, 22 Jan 2003 00:42:39 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from [209.226.175.3] (helo=tomts15-srv.bellnexxia.net) by post.thorcom.com with esmtp (Exim 4.12) id 18b8yU-000661-00 for rsgb_lf_group@blacksheep.org; Wed, 22 Jan 2003 00:42:38 +0000 Received: from lsk.sympatico.ca ([216.208.193.143]) by tomts15-srv.bellnexxia.net (InterMail vM.5.01.04.19 201-253-122-122-119-20020516) with ESMTP id <20030122004235.HSLS29922.tomts15-srv.bellnexxia.net@lsk.sympatico.ca> for ; Tue, 21 Jan 2003 19:42:35 -0500 Message-ID: <5.2.0.9.0.20030121163457.00ad1cf0@pop2.sympatico.ca> X-Sender: b1aemm59@pop2.sympatico.ca (Unverified) X-Mailer: QUALCOMM Windows Eudora Version 5.2.0.9 Date: Tue, 21 Jan 2003 16:37:35 -0500 To: rsgb_lf_group@blacksheep.org From: "Larry Kayser" In-reply-to: <3E21F6F4.9040202@usa.net> References: <11a.1ceb118c.2b534ef7@aol.com> MIME-Version: 1.0 Subject: LF: Video Card, ATI Radeon 7500 Content-Type: text/plain; charset=us-ascii; format=flowed X-Spam-Status: No, hits=-0.2 required=6.0tests=DATE_IN_PAST_03_06,IN_REP_TO,REFERENCES,SPAM_PHRASE_00_01version=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Greetings again.... Does anyone in the LF community have any experience in using the ATI Radeon 7500 Video Card, especially with the DSP processing programs? This card allows me to spread the Microsoft Desktop over two CRT's. Larry VA3LK From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 24115 invoked from network); 22 Jan 2003 00:43:18 -0000 Received: from netmail02.services.quay.plus.net (212.159.14.221) by mailstore with SMTP; 22 Jan 2003 00:43:18 -0000 Received: (qmail 2347 invoked by uid 10001); 22 Jan 2003 00:43:16 -0000 Content-Transfer-Encoding: 8bit Received: from post.thorcom.com (193.82.116.70) by netmail02.services.quay.plus.net with SMTP; 22 Jan 2003 00:43:16 -0000 X-Priority: 3 X-MSMail-Priority: Normal X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18b8yR-00065x-00 for rsgb_lf_group-outgoing@blacksheep.org; Wed, 22 Jan 2003 00:42:35 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from [209.226.175.3] (helo=tomts15-srv.bellnexxia.net) by post.thorcom.com with esmtp (Exim 4.12) id 18b8yQ-00065o-00 for rsgb_lf_group@blacksheep.org; Wed, 22 Jan 2003 00:42:34 +0000 Received: from lsk.sympatico.ca ([216.208.193.143]) by tomts15-srv.bellnexxia.net (InterMail vM.5.01.04.19 201-253-122-122-119-20020516) with ESMTP id <20030122004232.HSKE29922.tomts15-srv.bellnexxia.net@lsk.sympatico.ca> for ; Tue, 21 Jan 2003 19:42:32 -0500 Message-ID: <5.2.0.9.0.20030121163253.00ad1250@pop2.sympatico.ca> X-Sender: b1aemm59@pop2.sympatico.ca (Unverified) X-Mailer: QUALCOMM Windows Eudora Version 5.2.0.9 Date: Tue, 21 Jan 2003 16:34:40 -0500 To: rsgb_lf_group@blacksheep.org From: "Larry Kayser" In-reply-to: <3E21F6F4.9040202@usa.net> References: <11a.1ceb118c.2b534ef7@aol.com> MIME-Version: 1.0 Subject: LF: SB Audigy Card Content-Type: text/plain; charset=us-ascii; format=flowed X-Spam-Status: No, hits=-0.2 required=6.0tests=DATE_IN_PAST_03_06,IN_REP_TO,REFERENCES,SPAM_PHRASE_00_01version=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Greetings: Does anyone in the LF community have any experience in using the Sound Blaster Card Audigy with any of the DSP programs? Larry VA3LK From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 13624 invoked from network); 21 Jan 2003 23:46:29 -0000 Received: from netmail01.services.quay.plus.net (212.159.14.219) by mailstore with SMTP; 21 Jan 2003 23:46:29 -0000 Received: (qmail 29428 invoked by uid 10001); 21 Jan 2003 23:48:01 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail01.services.quay.plus.net with SMTP; 21 Jan 2003 23:48:01 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18b82A-0005tV-00 for rsgb_lf_group-outgoing@blacksheep.org; Tue, 21 Jan 2003 23:42:22 +0000 Received: from [212.135.6.10] (helo=smarthost0.mail.uk.easynet.net) by post.thorcom.com with esmtp (Exim 4.12) id 18b82A-0005tM-00 for rsgb_lf_group@blacksheep.org; Tue, 21 Jan 2003 23:42:22 +0000 Received: from tnt-13-51.easynet.co.uk ([212.134.22.51] helo=erica) by smarthost0.mail.uk.easynet.net with smtp (Exim 4.10) id 18b823-000Nz5-00 for rsgb_lf_group@blacksheep.org; Tue, 21 Jan 2003 23:42:19 +0000 Message-ID: <000701c2c1a7$1a6dd520$331686d4@erica> From: "g3ldo" To: rsgb_lf_group@blacksheep.org Date: Tue, 21 Jan 2003 23:40:31 -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: LF Antennas Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=1.0 required=6.0tests=SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 X-Spam-Level: * 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false During this very wet spell I noticed that the total antenna resistance has gone up - probably due to environmental losses. The daily cycling of antenna resistance does not seem so bad on 136kHz as on 73kHz or should I say that it is different. I have found no external effect such as tide or weather that correlate with these antenna current variations. When the area around the antenna is very wet, and I leave the transmitter on for testing, the antenna current starts very low then creeps up over a period of about 5 minutes or more by up to 100%. So much so that I have to readjust the matching transformer to avoid overloading the transmitter. This implies that the total antenna resistance has fallen. When we had a fall of snow a couple of weeks ago this caused a change in the resonant point although not the total resistance of the antenna. No wonder the Decca stations had this elaborate auto tuning and matching arrangement. Just over a week ago (when it was cold and relatively dry) I was using the transmitter at night and was alarmed by fire and sparks coming from one of the insulated wires that goes to the top of the mast. In the beam of my torch I could see a twig that had obviously got caught up with the wire when the antenna was tilted over during the day. I turned of the transmitter and hooked the twig down and found it was steaming and nearly too hot to touch. It shows how lossy wet trees and shrubs are if located close to the transmitting antenna. Regards, Peter, G3LDO e-mail Web From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 920 invoked from network); 21 Jan 2003 19:27:22 -0000 Received: from netmail02.services.quay.plus.net (212.159.14.221) by mailstore with SMTP; 21 Jan 2003 19:27:22 -0000 Received: (qmail 468 invoked by uid 10001); 21 Jan 2003 19:27:06 -0000 Content-Transfer-Encoding: 8bit Received: from post.thorcom.com (193.82.116.70) by netmail02.services.quay.plus.net with SMTP; 21 Jan 2003 19:27:06 -0000 X-Priority: 3 X-MSMail-Priority: Normal X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18b41q-0005BK-00 for rsgb_lf_group-outgoing@blacksheep.org; Tue, 21 Jan 2003 19:25:46 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from [147.197.200.9] (helo=hestia.herts.ac.uk) by post.thorcom.com with esmtp (Exim 4.12) id 18b41q-0005BB-00 for rsgb_lf_group@blacksheep.org; Tue, 21 Jan 2003 19:25:46 +0000 Received: from gemini ([147.197.200.44] helo=gemini.herts.ac.uk) by hestia.herts.ac.uk with esmtp (Exim 3.22 #1) id 18b41e-00008Q-00 for rsgb_lf_group@blacksheep.org; Tue, 21 Jan 2003 19:25:34 +0000 Received: from [147.197.232.252] (helo=rsch-15.herts.ac.uk) by gemini.herts.ac.uk with esmtp (Exim 3.33 #1) id 18b41T-0006R8-00 for rsgb_lf_group@blacksheep.org; Tue, 21 Jan 2003 19:25:23 +0000 Message-ID: <5.1.0.14.0.20030121134526.00b1fe68@gemini.herts.ac.uk> X-Sender: mj9ar@gemini.herts.ac.uk X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Tue, 21 Jan 2003 19:25:21 +0000 To: rsgb_lf_group@blacksheep.org From: "James Moritz" In-reply-to: <2D280BB697C7EE4C979C5C89925418EFB05A43@TNS-FBU-2E-003.corp .telenor.no> MIME-Version: 1.0 X-MailScanner: No Virus detected Subject: Re: LF: Re: Re: Notch for DCF39/Spectrograms/Luxembourg effect Content-Type: text/plain; charset=us-ascii; format=flowed X-Spam-Status: No, hits=-0.2 required=6.0tests=DEAR_SOMEBODY,IN_REP_TO,SPAM_PHRASE_01_02version=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Dear Jan-Martin, LF group, At 14:10 21/01/2003 +0100, you wrote: >A source follower has incredible low gain - even when driving high impedance, >that's the reason I discard such constructions, but using a PNP instead of >NPN >you may achieve over unity gain. A BJT emitter follower has in the region of >0.8-0.95x voltage gain. >You set the feedback to adjust the gain, and add some postive feedback to >the input and achieve very high input impedance. A source follower has unity gain only with infinite load impedance. But most source followers have a built-in load in the form of the source bias resistor, which will normally be a few hundred ohms. A FET with transconductance of a few mS has a source follower output impedance of a few hundred ohms, so the bias resistor substantially loads the output, resulting in gain well below unity. This can be avoided by increasing the load impedance in different ways, eg. by connecting a high impedance choke in series with the source resistor. In the compound follower circuit, the low potential end of the 100R resistor is bootstrapped by the output of the emitter follower, making its effective impedance much higher. The bipolar follower has much higher transconductance, giving an output impedance of a couple of ohms, and so can achieve nearly unity gain even with a 50 ohm load. The actual gain of the complete circuit was about 0.9 - 0.95, depending on the transistors used. With a high impedance source, the thermal noise will be high also - eg. for 10k Rs, about 0.2uV in 300Hz. Most reasonable receivers have lower noise floor than this, so increasing gain is not very useful. If you do need higher gain, a circuit like LA8AK suggests is a good way to go. The circuit I experimented with is not the best high impedance buffer money can buy, but it is simple, requires no adjustment, and delivers nearly unity gain with adequately low noise and low distortion for many purposes. Cheers, Jim Moritz 73 de M0BMU From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 18242 invoked from network); 21 Jan 2003 14:43:53 -0000 Received: from warrior.services.quay.plus.net (212.159.14.227) by mailstore with SMTP; 21 Jan 2003 14:43:53 -0000 Received: (qmail 21288 invoked from network); 21 Jan 2003 14:43:51 -0000 Received: from post.thorcom.com (193.82.116.70) by warrior.services.quay.plus.net with SMTP; 21 Jan 2003 14:43:50 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18azcR-0004CI-00 for rsgb_lf_group-outgoing@blacksheep.org; Tue, 21 Jan 2003 14:43:15 +0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from [193.212.240.200] (helo=virus-out.ttyl.com) by post.thorcom.com with esmtp (Exim 4.12) id 18azcL-0004C2-00 for rsgb_lf_group@blacksheep.org; Tue, 21 Jan 2003 14:43:10 +0000 Received: from [134.47.162.190] by virusscan.ttyl.com with ESMTP for rsgb_lf_group@blacksheep.org; Tue, 21 Jan 2003 15:42:20 +0100 Received: from tns-fbu-22-215.corp.telenor.no ([134.47.162.192]) by tns-fbu-22-209.corp.telenor.no with Microsoft SMTPSVC(5.0.2195.4453); Tue, 21 Jan 2003 15:42:03 +0100 Received: from tns-fbu-22-212.corp.telenor.no ([134.47.162.91]) by tns-fbu-22-215.corp.telenor.no with Microsoft SMTPSVC(5.0.2195.4453); Tue, 21 Jan 2003 15:42:03 +0100 Received: from TNS-FBU-2E-003.corp.telenor.no ([134.47.164.201]) by tns-fbu-22-212.corp.telenor.no with Microsoft SMTPSVC(5.0.2195.4453); Tue, 21 Jan 2003 15:42:03 +0100 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 content-class: urn:content-classes:message Date: Tue, 21 Jan 2003 15:42:03 +0100 Message-ID: <2D280BB697C7EE4C979C5C89925418EFB05A45@TNS-FBU-2E-003.corp.telenor.no> Thread-Topic: Jan-Martin's Preamp circuit Thread-Index: AcLBWGTa58y2IkWYTLGMVPSMFV1hdgAAoJEQ From: jan-martin.noding@telenor.com To: rsgb_lf_group@blacksheep.org X-OriginalArrivalTime: 21 Jan 2003 14:42:03.0579 (UTC) FILETIME=[435788B0:01C2C15B] MIME-Version: 1.0 Subject: LF: SV: Jan-Martin's Preamp circuit Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.0 required=6.0tests=NO_REAL_NAME,QUOTED_EMAIL_TEXT,SPAM_PHRASE_01_02, SUBJECT_MONTH,SUBJECT_MONTH_2version=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false TNX This was constructed in times where we listened to BBC2 and no lower frequencies, so the capacitors are probably small. Perhaps a resistor in series with the 10nF capacitor to adjust the positive feedback... hi 73 Jan-Martin --- J M Nøding, Datakvalitet, TTS, Kristiansand Telefon 0047-9077-7126 -----Opprinnelig melding----- Fra: Hugh M0WYE [mailto:m0wye@thersgb.net] Sendt: 21. januar 2003 15:11 Til: rsgb_lf_group@blacksheep.org Emne: LF: Jan-Martin's Preamp circuit Hi Jan-Martin and LF group, I was going to ask if your preamp could be posted on the Reflector ... Being the "some-other" Here it is ... 73 Hugh M0WYE ----- Original Message ----- From: To: Sent: Tuesday, January 21, 2003 1:10 PM Subject: LF: Re: Re: Notch for DCF39/Spectrograms/Luxembourg effect > Hi, > I don't see the point in using NPN devices (PNP are better for this purpose), > you would probably not have more than 0.5x voltage gain > A source follower has incredible low gain - even when driving high impedance, > that's the reason I discard such constructions, but using a PNP instead of NPN > you may achieve over unity gain. A BJT emitter follower has in the region of > 0.8-0.95x voltage gain. > You set the feedback to adjust the gain, and add some postive feedback to > the input and achieve very high input impedance. > > Unfortunately I forgot to forward the circuit from home, but sent it to Alan > and some other. Too high gain is of course a problem and may cause some IMD, > will try to remember to pass the circuit later (I am in Stavanger at the moment). > > Passed the spectrogram as a separate mail > > 73 Jan-Martin > LA8AK > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 8023 invoked from network); 21 Jan 2003 14:14:17 -0000 Received: from netmail02.services.quay.plus.net (212.159.14.221) by mailstore with SMTP; 21 Jan 2003 14:14:17 -0000 Received: (qmail 28044 invoked by uid 10001); 21 Jan 2003 14:13:44 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail02.services.quay.plus.net with SMTP; 21 Jan 2003 14:13:43 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18az8q-00042o-00 for rsgb_lf_group-outgoing@blacksheep.org; Tue, 21 Jan 2003 14:12:40 +0000 Received: from [212.159.14.221] (helo=netmail02.services.quay.plus.net) by post.thorcom.com with smtp (Exim 4.12) id 18az8k-00042f-00 for rsgb_lf_group@blacksheep.org; Tue, 21 Jan 2003 14:12:34 +0000 Received: (qmail 25351 invoked from network); 21 Jan 2003 14:12:03 -0000 Received: from ctuash.sonnetinternet.co.uk (HELO hugh) (212.159.90.113) by netmail02.services.quay.plus.net with SMTP; 21 Jan 2003 14:12:03 -0000 Message-ID: <029401c2c156$feb331e0$0504210a@c.scope> From: "Hugh M0WYE" To: rsgb_lf_group@blacksheep.org References: <2D280BB697C7EE4C979C5C89925418EFB05A43@TNS-FBU-2E-003.corp.telenor.no> Date: Tue, 21 Jan 2003 14:11:20 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Jan-Martin's Preamp circuit Content-Type: multipart/mixed; boundary="------------080003080701020502000000" X-Spam-Status: No, hits=-1.3 required=6.0tests=QUOTED_EMAIL_TEXT,REFERENCES,SPAM_PHRASE_00_01, SUBJECT_MONTH,SUBJECT_MONTH_2,USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false This is a multi-part message in MIME format. --------------080003080701020502000000 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 8bit Hi Jan-Martin and LF group, I was going to ask if your preamp could be posted on the Reflector ... Being the "some-other" Here it is ... 73 Hugh M0WYE ----- Original Message ----- From: To: Sent: Tuesday, January 21, 2003 1:10 PM Subject: LF: Re: Re: Notch for DCF39/Spectrograms/Luxembourg effect > Hi, > I don't see the point in using NPN devices (PNP are better for this purpose), > you would probably not have more than 0.5x voltage gain > A source follower has incredible low gain - even when driving high impedance, > that's the reason I discard such constructions, but using a PNP instead of NPN > you may achieve over unity gain. A BJT emitter follower has in the region of > 0.8-0.95x voltage gain. > You set the feedback to adjust the gain, and add some postive feedback to > the input and achieve very high input impedance. > > Unfortunately I forgot to forward the circuit from home, but sent it to Alan > and some other. Too high gain is of course a problem and may cause some IMD, > will try to remember to pass the circuit later (I am in Stavanger at the moment). > > Passed the spectrogram as a separate mail > > 73 Jan-Martin > LA8AK > --------------080003080701020502000000 Content-Type: image/gif; name="lfpreamp.gif" Content-Transfer-Encoding: base64 Content-Disposition: inline; filename="lfpreamp.gif" R0lGODdhvwPPAvcAAAAAADMzzP8AAP8zAP///wAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA 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-0000 Received: from warrior.services.quay.plus.net (212.159.14.227) by mailstore with SMTP; 21 Jan 2003 13:12:18 -0000 Received: (qmail 11996 invoked from network); 21 Jan 2003 13:11:30 -0000 Received: from post.thorcom.com (193.82.116.70) by warrior.services.quay.plus.net with SMTP; 21 Jan 2003 13:11:30 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18ayBC-0003ns-00 for rsgb_lf_group-outgoing@blacksheep.org; Tue, 21 Jan 2003 13:11:02 +0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from [193.212.240.200] (helo=virus-out.ttyl.com) by post.thorcom.com with esmtp (Exim 4.12) id 18ayBC-0003nj-00 for rsgb_lf_group@blacksheep.org; Tue, 21 Jan 2003 13:11:02 +0000 Received: from [134.47.162.90] by virusscan.ttyl.com with ESMTP for rsgb_lf_group@blacksheep.org; Tue, 21 Jan 2003 14:10:24 +0100 Received: from tns-fbu-22-214.corp.telenor.no ([134.47.162.92]) by tns-fbu-22-208.corp.telenor.no with Microsoft SMTPSVC(5.0.2195.4453); Tue, 21 Jan 2003 14:10:23 +0100 Received: from tns-fbu-22-212.corp.telenor.no ([134.47.162.91]) by tns-fbu-22-214.corp.telenor.no with Microsoft SMTPSVC(5.0.2195.4453); Tue, 21 Jan 2003 14:10:23 +0100 Received: from TNS-FBU-2E-003.corp.telenor.no ([134.47.164.201]) by tns-fbu-22-212.corp.telenor.no with Microsoft SMTPSVC(5.0.2195.4453); Tue, 21 Jan 2003 14:10:23 +0100 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 content-class: urn:content-classes:message Date: Tue, 21 Jan 2003 14:10:22 +0100 Message-ID: <2D280BB697C7EE4C979C5C89925418EFB05A43@TNS-FBU-2E-003.corp.telenor.no> Thread-Topic: Re: Notch for DCF39/Spectrograms/Luxembourg effect Thread-Index: AcK+8ZwkJrITrFIpRKiFGkIbXT0lGQCWxxBw From: jan-martin.noding@telenor.com To: rsgb_lf_group@blacksheep.org X-OriginalArrivalTime: 21 Jan 2003 13:10:23.0595 (UTC) FILETIME=[751893B0:01C2C14E] MIME-Version: 1.0 Subject: LF: Re: Re: Notch for DCF39/Spectrograms/Luxembourg effect Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.5 required=6.0tests=EMAIL_ATTRIBUTION,NO_REAL_NAME,SPAM_PHRASE_00_01version=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Hi, I don't see the point in using NPN devices (PNP are better for this purpose), you would probably not have more than 0.5x voltage gain A source follower has incredible low gain - even when driving high impedance, that's the reason I discard such constructions, but using a PNP instead of NPN you may achieve over unity gain. A BJT emitter follower has in the region of 0.8-0.95x voltage gain. You set the feedback to adjust the gain, and add some postive feedback to the input and achieve very high input impedance. Unfortunately I forgot to forward the circuit from home, but sent it to Alan and some other. Too high gain is of course a problem and may cause some IMD, will try to remember to pass the circuit later (I am in Stavanger at the moment). Passed the spectrogram as a separate mail 73 Jan-Martin LA8AK -----Opprinnelig melding----- Fra: James Moritz [mailto:j.r.moritz@herts.ac.uk] Sendt: 18. januar 2003 13:42 Til: rsgb_lf_group@blacksheep.org Emne: LF: Re: Notch for DCF39/Spectrograms/Luxembourg effect At 12:09 17/01/2003 -0500, you wrote: ><< This is the wrong way to achieve high impedance (and good IMD), > it is no need to keep the "source current low" {etc} >> > >I do not see anything in the Web page that suggests keeping the source >current low. It only says "reasonable amount," which I took to mean "be sure >to use enough" to keep IMD low. Dear LF Group, The output impedance of a follower is roughly the inverse of it's transconductance, ie. 1/gm. A J310 JFET has a gm of about 10 - 20 mS, so the output impedance is roughly 50 - 100 ohms. To get low distortion, and gain close to unity with such a follower requires that the load it is driving should be much greater than the output impedance of the follower. So a J310 source follower would be fine if driving several hundred ohms or greater, but not for a 50 or 75 ohms system. To get around this, one could use a special FET like the CP640 device used in the AMRAD active antenna circuit, with much higher gm. A small power MOSFET would give a low output impedance, but rather high input capacitance. Bipolar transistors have much higher gm (roughly Ic/25mV), but would have relatively low input impedance, in the kilohm range, and be relatively noisy with a high source impedance. Various high speed op-amps and IC buffers can be used, but they tend to be quite noisy. A cheap and easy alternative is to use a compound follower, with JFET and bipolar followers cascaded. I tried the one shown in the attachment - Zin is basically 500k in parallel with the FET capacitance, the gain with 50ohm load is about 0.95. The noise at 136kHz with the input shorted was about 0.05uV in 400Hz BW. About 1V RMS can be applied to the input before there is much distortion whilst driving 50ohms, so it ought to be OK with most antennas, and is probably better than most receivers. The FET was a J310, but other devices with Idss > about 8mA should be OK. A lower gm device with lower Idss could be used if the 100R resistor were increased in value, but would be noisier. The output BJT used was a 2N3053, but can be a wide range of small power transistors with Hfe > 50 when biased to 30mA or so and fT in the 10s of MHz - eg. BD131, BFY50, ZTX650 etc. Zout is a few ohms - If driving a capacitive load, a resistor in series with the output of 10 - 20 ohms will prevent oscillation. Extra decoupling will be required if the 12V supply is noisy. Using spectrogram software to monitor the band for signals works very well - it allows you to see CW signals that are inaudible, which you can then try to "zoom in" using a narrow filter. Although you can't copy the morse from the screen display, you can detect the presence of signals that are too weak to hear even in the narrowest filter, whilst monitoring the whole band segment at once. Some of the spectrogram programs have DSP audio filters built in, too. The broadcast station noises M0WYE is hearing may well be "Luxembourg effect", where cross-modulation of the DCF39 carrier by the BC signals occurs in the ionosphere, and is often quite strong at my QTH. Usually I can here the audio of at least two stations at once. Hope this is helpful, Cheers, Jim Moritz 73 de M0BMU From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 26407 invoked from network); 21 Jan 2003 12:57:31 -0000 Received: from netmail02.services.quay.plus.net (212.159.14.221) by mailstore with SMTP; 21 Jan 2003 12:57:31 -0000 Received: (qmail 25660 invoked by uid 10001); 21 Jan 2003 12:56:44 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail02.services.quay.plus.net with SMTP; 21 Jan 2003 12:56:43 -0000 X-SQ: A X-Priority: 3 X-MSMail-Priority: Normal Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18axwp-0003hJ-00 for rsgb_lf_group-outgoing@blacksheep.org; Tue, 21 Jan 2003 12:56:11 +0000 Received: from [193.212.240.200] (helo=virus-out.ttyl.com) by post.thorcom.com with esmtp (Exim 4.12) id 18axwo-0003h4-00 for rsgb_lf_group@blacksheep.org; Tue, 21 Jan 2003 12:56:10 +0000 Received: from [134.47.162.190] by virusscan.ttyl.com with ESMTP for rsgb_lf_group@blacksheep.org; Tue, 21 Jan 2003 13:55:24 +0100 Received: from tns-fbu-22-215.corp.telenor.no ([134.47.162.192]) by tns-fbu-22-209.corp.telenor.no with Microsoft SMTPSVC(5.0.2195.4453); Tue, 21 Jan 2003 13:55:24 +0100 Received: from tns-fbu-22-212.corp.telenor.no ([134.47.162.91]) by tns-fbu-22-215.corp.telenor.no with Microsoft SMTPSVC(5.0.2195.4453); Tue, 21 Jan 2003 13:55:23 +0100 Received: from TNS-FBU-2E-003.corp.telenor.no ([134.47.164.201]) by tns-fbu-22-212.corp.telenor.no with Microsoft SMTPSVC(5.0.2195.4453); Tue, 21 Jan 2003 13:55:24 +0100 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 content-class: urn:content-classes:message Date: Tue, 21 Jan 2003 13:55:23 +0100 Message-ID: <2D280BB697C7EE4C979C5C89925418EFB05A42@TNS-FBU-2E-003.corp.telenor.no> X-MS-Has-Attach: yes Thread-Topic: 74HC4066 applications Thread-Index: AcK/s2JeRY3m0vChSN6VuWjeiZTLDwBmHxkg From: jan-martin.noding@telenor.com To: rsgb_lf_group@blacksheep.org X-OriginalArrivalTime: 21 Jan 2003 12:55:24.0119 (UTC) FILETIME=[5CF76E70:01C2C14C] MIME-Version: 1.0 Subject: LF: DCF39 Frequency shift Content-Type: multipart/mixed; boundary="------------030209090500050304090604" X-Spam-Status: No, hits=2.3 required=6.0tests=HTML_FONT_COLOR_BLUE,NO_REAL_NAME,SPAM_PHRASE_00_01version=2.43 X-Spam-Level: ** 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false This is a multi-part message in MIME format. --------------030209090500050304090604 Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: 8bit

Using the sigview program LA1TN has shown that the shift is 330Hz, the highest peak is 138.8kHz, see attached file

73,
Jan_Martin
LA8AK (in JO38XC)
N4623-Kristiansand (tel.: +47-380-87178 Home)(38052660 Work 90777126 Mobile)
http://www.laud.no/la6nca/LA8AK/

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AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAP/9f7+AAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAP/9D7+AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAP/9H7+AAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAP/9L7+AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAP /9P7+AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAP/9T7+AAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAP/9X7+AAAAAAAAAAAAAAAAAAAAAAAAAAP/9k= --------------030209090500050304090604-- From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 29300 invoked from network); 21 Jan 2003 12:29:04 -0000 Received: from murphys.services.quay.plus.net (212.159.14.225) by mailstore with SMTP; 21 Jan 2003 12:29:04 -0000 Received: (qmail 16434 invoked from network); 21 Jan 2003 12:30:32 -0000 Content-Transfer-Encoding: 8bit Received: from post.thorcom.com (193.82.116.70) by murphys.services.quay.plus.net with SMTP; 21 Jan 2003 12:30:32 -0000 X-SQ: A X-Priority: 3 X-MSMail-Priority: Normal Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18axTq-0003WD-00 for rsgb_lf_group-outgoing@blacksheep.org; Tue, 21 Jan 2003 12:26:14 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from [147.197.200.9] (helo=hestia.herts.ac.uk) by post.thorcom.com with esmtp (Exim 4.12) id 18axTp-0003W4-00 for rsgb_lf_group@blacksheep.org; Tue, 21 Jan 2003 12:26:13 +0000 Received: from gemini ([147.197.200.44] helo=gemini.herts.ac.uk) by hestia.herts.ac.uk with esmtp (Exim 3.22 #1) id 18axTT-0000qu-00 for rsgb_lf_group@blacksheep.org; Tue, 21 Jan 2003 12:25:51 +0000 Received: from [147.197.232.252] (helo=rsch-15.herts.ac.uk) by gemini.herts.ac.uk with esmtp (Exim 3.33 #1) id 18axTS-0006F5-00 for rsgb_lf_group@blacksheep.org; Tue, 21 Jan 2003 12:25:50 +0000 Message-ID: <5.1.0.14.0.20030121110409.00a985b0@gemini.herts.ac.uk> X-Sender: mj9ar@gemini.herts.ac.uk X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Tue, 21 Jan 2003 12:25:24 +0000 To: rsgb_lf_group@blacksheep.org From: "James Moritz" In-reply-to: <000e01c2c0be$f4054320$aac6e150@hughspc> References: <5.1.0.14.0.20030117183432.00af50f0@gemini.herts.ac.uk> MIME-Version: 1.0 X-MailScanner: No Virus detected Subject: Re: LF: Re: Re: Notch for DCF39/Spectrograms/Luxembourg effect Content-Type: text/plain; charset=us-ascii; format=flowed X-Spam-Status: No, hits=-2.0 required=6.0tests=DEAR_SOMEBODY,EMAIL_ATTRIBUTION,IN_REP_TO,REFERENCES, SPAM_PHRASE_00_01version=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Dear Hugh, LF Group, At 22:57 19/01/2003 +0000, you wrote: >I notice the sounds and patterning on the screen are only there during the >hours of darkness, does that prove that it is the ionosphere and not the >radio ? >Does the ionosphere cause non-linear mixing of higher frequencies or just LF >? I believe it's called the Luxembourg effect because it was first observed on MF signals from Radio Luxembourg in the 20s or 30s. I don't know much about the field, but any frequency that is absorbed by the ionosphere will cause "heating", which modulates it's reflecting properties. There are number of research facilities which transmit megawatts of HF straight up in order to investigate ionospheric physics - searching the web under "ionospheric heater", "HAARP" or "EISCAT" will give you lots of hits, including the conspiracy theorists, who of course will tell you what the real purpose of these experiments is! The fact that the noises disappear during daytime, also that any amount of preselector filtering does not remove them, is quite convincing that these signals originate outside the receiver. >Have you tried out your buffer circuit - or is it just a "circuit idea" I >wonder ? Yes, it is a real circuit - I have not tried it with the notch filter, but I did test it as a high impedance antenna preamp, as well as the bench measurements I mentioned - it seems to do the job quite well, and since there are 4 medium wave broadcast stations within 1km of my QTH, it demonstrates the linearity must be OK! Cheers, Jim Moritz 73 de M0BMU From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 1264 invoked from network); 21 Jan 2003 02:38:49 -0000 Received: from netmail02.services.quay.plus.net (212.159.14.221) by mailstore with SMTP; 21 Jan 2003 02:38:49 -0000 Received: (qmail 10781 invoked by uid 10001); 21 Jan 2003 02:38:06 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail02.services.quay.plus.net with SMTP; 21 Jan 2003 02:38:06 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18aoHs-0001mL-00 for rsgb_lf_group-outgoing@blacksheep.org; Tue, 21 Jan 2003 02:37:16 +0000 Received: from [209.225.8.18] (helo=mx08.cluster1.charter.net) by post.thorcom.com with esmtp (Exim 4.12) id 18aoHr-0001mC-00 for rsgb_lf_group@blacksheep.org; Tue, 21 Jan 2003 02:37:15 +0000 Received: from [66.189.48.230] (HELO johncellarnew) by mx08.cluster1.charter.net (CommuniGate Pro SMTP 3.5.9) with SMTP id 24093591 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 21:36:44 -0500 Message-ID: <001001c2c0f5$feaf0a40$0500a8c0@charter.net> From: "John Andrews" To: rsgb_lf_group@blacksheep.org References: <5.1.0.14.0.20030120111745.00b03438@gemini.herts.ac.uk> <001201c2c07c$06a43e20$0500a8c0@charter.net> Date: Tue, 21 Jan 2003 02:37:08 -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: Early morning tests? Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.5 required=6.0tests=REFERENCES,SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false The files I posted this morning at: > http://webpages.charter.net/w1tag/136/ may not have been readable due to my early morning foggy brain. If you couldn't make sense of them, please try again -- the problem has been fixed. John Andrews, W1TAG From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 14968 invoked from network); 20 Jan 2003 23:50:49 -0000 Received: from murphys.services.quay.plus.net (212.159.14.225) by mailstore with SMTP; 20 Jan 2003 23:50:49 -0000 Received: (qmail 15214 invoked from network); 20 Jan 2003 23:50:32 -0000 Received: from post.thorcom.com (193.82.116.70) by murphys.services.quay.plus.net with SMTP; 20 Jan 2003 23:50:32 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18alfj-0001Jl-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 20 Jan 2003 23:49:43 +0000 Received: from [194.73.73.92] (helo=carbon.btinternet.com) by post.thorcom.com with esmtp (Exim 4.12) id 18alfj-0001Jc-00 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 23:49:43 +0000 Received: from host213-122-47-243.in-addr.btopenworld.com ([213.122.47.243] helo=Main) by carbon.btinternet.com with smtp (Exim 3.22 #16) id 18alfi-0005Oc-00 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 23:49:43 +0000 Message-ID: <003501c2c0de$72f00340$6507a8c0@Main> From: "Alan Melia" To: "LF-Group" Date: Mon, 20 Jan 2003 23:47:24 -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: LF: T/A condx Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=1.0 required=6.0tests=SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 X-Spam-Level: * 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Hi all, The Kp index rose to 5 just after midnight 20th, so I am expecting some increase in absorption by about Wed/Thurs 22/23rd night. This should reduce levels of night-time signals for a few days. NOAA is forecasting unsettled geomagnetic conditions by the 22nd due a geoeffective (aiming at us !) coronal hole. If this "burps" it means the depressed period could be prolonged somewhat. We need to keep an eye on Steve's log to see how bad it gets. I think Laurie is right that closer behind a disturbance we can often ride in on a enhancement "wave" due to constructive interference between the different radio paths and get signals at 3 sec dot easily displayed. This Kp increase could be a chance but I suspect it will only be a "beginers wave" unless the Kp rises further. We need to be careful about interpreting Steve's plots regarding UK paths. DCF is 700 or more kms east and Steve is nearly 1000kms west of John. This will influence the timing of the peaks and troughs he sees, and sometimes the maximum levels. In general I believe in a relatively quiet period like we have just had there may be little difference. When we run into a period of more serious multi-path fading Steve's results may diverge from those achieved by John ,Dex and Lloyd. It will be interesting to see by how much. 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 31961 invoked from network); 20 Jan 2003 21:50:48 -0000 Received: from netmail02.services.quay.plus.net (212.159.14.221) by mailstore with SMTP; 20 Jan 2003 21:50:48 -0000 Received: (qmail 341 invoked by uid 10001); 20 Jan 2003 21:52:17 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail02.services.quay.plus.net with SMTP; 20 Jan 2003 21:52:17 -0000 X-MSMail-Priority: Normal X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18ajo5-0000zp-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 20 Jan 2003 21:50:13 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from [24.153.64.2] (helo=smtp.comcast.net) by post.thorcom.com with esmtp (Exim 4.12) id 18ajo5-0000za-00 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 21:50:13 +0000 Received: from Charlie_Drake (pcp01445904pcs.lebnon01.pa.comcast.net [68.83.65.211]) by mtaout05.icomcast.net (iPlanet Messaging Server 5.2 HotFix 1.09 (built Jan 7 2003)) with SMTP id <0H9100JKI8MT5B@mtaout05.icomcast.net> for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 16:49:42 -0500 (EST) Date: Mon, 20 Jan 2003 16:49:24 -0500 From: "Steve Dove" To: rsgb_lf_group@blacksheep.org Message-ID: Organization: d s p MIME-Version: 1.0 X-Mailer: Opera 6.04 build 1135 X-Priority: 3 Subject: LF: w3eee.com -10dB Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.6 required=6.0tests=INVALID_MSGID,NOSPAM_INC,SPAM_PHRASE_00_01version=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Greetings insomniacs, Header says it all. In order to provide a bit more headroom to display possibly bigger propagation peaks, the sensitivity of the DCF-39 monitoring system has been dropped 10dB. http://www.w3eee.com 73, Steve From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 2443 invoked from network); 20 Jan 2003 20:12:29 -0000 Received: from netmail02.services.quay.plus.net (212.159.14.221) by mailstore with SMTP; 20 Jan 2003 20:12:29 -0000 Received: (qmail 1899 invoked by uid 10001); 20 Jan 2003 20:11:50 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail02.services.quay.plus.net with SMTP; 20 Jan 2003 20:11:49 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18aiGJ-0000eG-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 20 Jan 2003 20:11:15 +0000 Received: from [200.230.104.195] (helo=magicsite.magichosting.com.br) by post.thorcom.com with esmtp (Exim 4.12) id 18aiGJ-0000e7-00 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 20:11:15 +0000 Received: from Marcus (unverified [200.192.7.22]) by magicsite.magichosting.com.br (Vircom SMTPRS 5.3.232) with SMTP id for ; Mon, 20 Jan 2003 18:15:49 -0800 Message-ID: <000c01c2c0c8$c4b6ed30$9801a8c0@gigacom.com.br> From: "PY2PLL" To: rsgb_lf_group@blacksheep.org References: <23.2aadfb3f.2b5c5522@aol.com> <5.1.0.14.0.20030120171137.00b158e0@gemini.herts.ac.uk> Date: Mon, 20 Jan 2003 18:12:49 -0300 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4920.2300 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: Re: LF: Loops x Q Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.6 required=6.0tests=MSG_ID_ADDED_BY_MTA_3,QUOTED_EMAIL_TEXT,REFERENCES, SPAM_PHRASE_02_03,USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Hi James . . . > It seems to me this is quite a large loop, and will generate a large output: Yes, it´s large ... at least the bigest one I ever did. And it´s a prototype. I´m using PVC covered wire ... not soft enough to have evenly "nice" turns spacing. > > For your loop, and a f/s of 1uV/m, this gives 0.21uV @ 400k, 0.85uV @ 1600k., > With a Q of 200, the voltage at resonance will be increased to 42uV @ 400k, > 170uV @ 1600k I think I´ll built a smaller one, just to make some "real" FSM and then generate a table with the levels obtained with the bigger one. I have an SLM from G&W which have a balanced 6K / unbalanced 75ohm input Z. > The loop noise depends on the RX bandwidth, but in 10kHz BW it will be > roughly 6uV @ 400k, 12uV @ 1600k. So for 1uV/m, SNR would be 17dB @ 400k, > 23dB @ 1600k. The thermal noise in my tables are simply the "coil" thermal noise @ 250Hz BW. I used the article formula´s. > The tuning is a problem - 4:1 tuning range needs 16:1 capacitance > variation, including the stray capacitance of the loop. If L is about 446uH > from the table, this means 350p - 22p. The stray capacitance of the loop > may be greater than 22p, so you may not get the full tuning range. Using a > varicap diode, it is unlikely the minimum- to maximum capacitance ratio > will be high enough. it may be necessary to reduce the number of turns and > use a larger tuning capacitor. The loop turns are spaced by 5mm. I used G4FGQ´s software to estimate stray C ... > The other problem is that local stations will give very large signals - eg. > 10mV/m from an 1MHz MF broadcast station will result in about 1V across the > loop at resonance, which will probably lead to severe intermods from both > the preamp and the varicap. Ooopps ... this is true ... air-insulated C is winning ... > You could connect the preamp across only 1 turn > instead of all 9 - this would still give several uV out for 1uV/m f/s, more > than enough for a decent receiver. I already did this way. I couldn´t resist to test it with an air-variable C and no pre-amp so I added a 1 turn loop inside the main one, about 3 inches between coils. > In fact, since the loop output is so > large, you could probably eliminate the preamp by using a single turn > coupling loop to a 50ohm RX input. The air-variable tuning capacitor would > also be a good idea for this reason, unless you live a very long way from > any broadcast stations! I guess I´ll keep this 1 turn solution ... the local BCs - nearest is about 5Km away - are pushing Kachina´s S Meter from 9+40 to 9+70 with internal pre-amp off. I´ll start the 136KHz prototype and compare it´s performance using 153KHz BC and DCF39 as signal sources. Thanks on the comments; 73 Marcus PY3CRX/PY2PLL http://py.qsl.br Active from "DC" to Laser ... From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 6501 invoked from network); 20 Jan 2003 20:04:42 -0000 Received: from netmail01.services.quay.plus.net (212.159.14.219) by mailstore with SMTP; 20 Jan 2003 20:04:42 -0000 Received: (qmail 9875 invoked by uid 10001); 20 Jan 2003 20:04:35 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail01.services.quay.plus.net with SMTP; 20 Jan 2003 20:04:35 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18ai95-0000WI-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 20 Jan 2003 20:03:47 +0000 Received: from [212.1.130.1] (helo=smtp-1.visp.telinco.net) by post.thorcom.com with esmtp (Exim 4.12) id 18ai95-0000W9-00 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 20:03:47 +0000 Received: from [80.225.198.170] (helo=hughspc) by smtp-1.visp.telinco.net with smtp (Exim 3.32 #1) id 18ahvL-00074R-00 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 19:49:35 +0000 Message-ID: <000e01c2c0be$f4054320$aac6e150@hughspc> From: "Hugh" To: rsgb_lf_group@blacksheep.org References: <5.1.0.14.0.20030117183432.00af50f0@gemini.herts.ac.uk> Date: Sun, 19 Jan 2003 22:57:29 -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: Notch for DCF39/Spectrograms/Luxembourg effect Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.7 required=6.0tests=DATE_IN_PAST_12_24,REFERENCES,SPAM_PHRASE_02_03, USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Hi Jim, Thankyou for your contribution on the notch filter. Also for the idea about the "Luxemborg effect". I notice the sounds and patterning on the screen are only there during the hours of darkness, does that prove that it is the ionosphere and not the radio ? Does the ionosphere cause non-linear mixing of higher frequencies or just LF ? Have you tried out your buffer circuit - or is it just a "circuit idea" I wonder ? 73 Hugh M0WYE From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 14041 invoked from network); 20 Jan 2003 20:03:47 -0000 Received: from marstons.services.quay.plus.net (212.159.14.223) by mailstore with SMTP; 20 Jan 2003 20:03:47 -0000 Received: (qmail 2107 invoked by uid 10001); 20 Jan 2003 20:05:16 -0000 Received: from post.thorcom.com (193.82.116.70) by marstons.services.quay.plus.net with SMTP; 20 Jan 2003 20:05:16 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18ai94-0000W5-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 20 Jan 2003 20:03:46 +0000 Received: from [212.1.130.1] (helo=smtp-1.visp.telinco.net) by post.thorcom.com with esmtp (Exim 4.12) id 18ai94-0000Vw-00 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 20:03:46 +0000 Received: from [80.225.198.170] (helo=hughspc) by smtp-1.visp.telinco.net with smtp (Exim 3.32 #1) id 18ahvK-00074R-00 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 19:49:34 +0000 Message-ID: <000d01c2c0be$f3775b00$aac6e150@hughspc> From: "Hugh" To: rsgb_lf_group@blacksheep.org References: <000401c2bf5f$2864fae0$ea00a8c0@f3a3a2> Date: Sun, 19 Jan 2003 22:50:26 -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: PA0BWL received at M0WYE Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.7 required=6.0tests=DATE_IN_PAST_12_24,REFERENCES,SPAM_PHRASE_00_01, USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Hi PA0BWL I don't know if you monitor this reflector, but if you do you were an excellent signal here at Wye, Near Ashford. JO01LE. I answered your QRSS CQ call just before 13:00, but I don't think you can have heard me. Your signals were audible in the loudspeaker. 73 Hugh M0WYE From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 31048 invoked from network); 20 Jan 2003 19:22:18 -0000 Received: from warrior.services.quay.plus.net (212.159.14.227) by mailstore with SMTP; 20 Jan 2003 19:22:18 -0000 Received: (qmail 1752 invoked from network); 20 Jan 2003 19:21:31 -0000 Received: from post.thorcom.com (193.82.116.70) by warrior.services.quay.plus.net with SMTP; 20 Jan 2003 19:21:31 -0000 X-SQ: A X-Priority: 3 X-MSMail-Priority: Normal Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18ahTS-0000N6-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 20 Jan 2003 19:20:46 +0000 Received: from [147.197.200.9] (helo=hestia.herts.ac.uk) by post.thorcom.com with esmtp (Exim 4.12) id 18ahTR-0000Mx-00 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 19:20:45 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from gemini ([147.197.200.44] helo=gemini.herts.ac.uk) by hestia.herts.ac.uk with esmtp (Exim 3.22 #1) id 18ahSt-00029y-00 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 19:20:11 +0000 Received: from [147.197.232.252] (helo=rsch-15.herts.ac.uk) by gemini.herts.ac.uk with esmtp (Exim 3.33 #1) id 18ahSi-0006tU-00 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 19:20:00 +0000 Message-ID: <5.1.0.14.0.20030120171137.00b158e0@gemini.herts.ac.uk> X-Sender: mj9ar@gemini.herts.ac.uk X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Mon, 20 Jan 2003 19:14:42 +0000 To: rsgb_lf_group@blacksheep.org From: "James Moritz" In-reply-to: <004401c2c0a2$25622860$9801a8c0@gigacom.com.br> References: <23.2aadfb3f.2b5c5522@aol.com> MIME-Version: 1.0 X-MailScanner: No Virus detected Subject: Re: LF: Loops x Q Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=-0.4 required=6.0tests=DEAR_SOMEBODY,IN_REP_TO,REFERENCES,SPAM_PHRASE_02_03version=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Dear Marcus, LF Group, It seems to me this is quite a large loop, and will generate a large output: I think across an untuned loop V = 2.1e-8.f.N.A.E where N = turns, f is frequency in Hz, A is area in m^2, E is f/s in V/m For your loop, and a f/s of 1uV/m, this gives 0.21uV @ 400k, 0.85uV @ 1600k., With a Q of 200, the voltage at resonance will be increased to 42uV @ 400k, 170uV @ 1600k The loop noise depends on the RX bandwidth, but in 10kHz BW it will be roughly 6uV @ 400k, 12uV @ 1600k. So for 1uV/m, SNR would be 17dB @ 400k, 23dB @ 1600k. The JFET noise will be negligible. I think most of the time the atmospheric noise level in 10k BW at MF will be well above 1uV/m, so it should be more than sensitive enough. Reducing the Q to 100 due to resistors or varicap will make the output voltage decrease by 6dB and loop noise decrease by 3dB - still probably OK. Reducing the RX bandwidth will improve the SNR, of course. The tuning is a problem - 4:1 tuning range needs 16:1 capacitance variation, including the stray capacitance of the loop. If L is about 446uH from the table, this means 350p - 22p. The stray capacitance of the loop may be greater than 22p, so you may not get the full tuning range. Using a varicap diode, it is unlikely the minimum- to maximum capacitance ratio will be high enough. it may be necessary to reduce the number of turns and use a larger tuning capacitor. The other problem is that local stations will give very large signals - eg. 10mV/m from an 1MHz MF broadcast station will result in about 1V across the loop at resonance, which will probably lead to severe intermods from both the preamp and the varicap. You could connect the preamp across only 1 turn instead of all 9 - this would still give several uV out for 1uV/m f/s, more than enough for a decent receiver. In fact, since the loop output is so large, you could probably eliminate the preamp by using a single turn coupling loop to a 50ohm RX input. The air-variable tuning capacitor would also be a good idea for this reason, unless you live a very long way from any broadcast stations! Hope this is helpful, Cheers, Jim Moritz 73 de M0BMU At 13:35 20/01/2003 -0300, you wrote: >Hi ... > >After read an article last year (Wireless World) about loop antennas X DCF39 >calibration, I constructed a octogonal RX loop, #16 awg wire, to cover from >400KHz to 1.6MHz. > >There´s 9 turns, 5mm spacing, 1.9 meter diameter. About 55 meter of wire. > >This is the first version. Later I´ll build another one to 136KHz. > >Acording with this article, I should expect a Q=200 ... 220 from such loop. > >I considered the NTE618 to tune it and a push-pull pre-amp (J310) with gates >conected to the loop ends. No resistors there. The article consider that for >such loop at this frequency will have something like .20uV of thermal noise. >The resistors will add some extra noise there so I removed them. > >But the Q=210 ... and the NTE618 Q is 200. > >Is there any gain If I use a dual-gang air variable driven by a step motor + >reduction in place of the NTE618? From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 7037 invoked from network); 20 Jan 2003 18:32:08 -0000 Received: from netmail02.services.quay.plus.net (212.159.14.221) by mailstore with SMTP; 20 Jan 2003 18:32:08 -0000 Received: (qmail 13114 invoked by uid 10001); 20 Jan 2003 18:31:54 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail02.services.quay.plus.net with SMTP; 20 Jan 2003 18:31:54 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18ageD-0000A0-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 20 Jan 2003 18:27:49 +0000 Received: from [62.253.164.47] (helo=mta7-svc.business.ntl.com) by post.thorcom.com with esmtp (Exim 4.12) id 18age8-00009r-00 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 18:27:44 +0000 Received: from l8p8y6 ([62.252.234.62]) by mta7-svc.business.ntl.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with SMTP id <20030120182743.FMET19755.mta7-svc.business.ntl.com@l8p8y6> for ; Mon, 20 Jan 2003 18:27:43 +0000 Message-ID: <000c01c2c0b1$9d4cddc0$3eeafc3e@l8p8y6> From: "hamilton mal" To: rsgb_lf_group@blacksheep.org Date: Mon, 20 Jan 2003 18:26:59 -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: DXPEDITION Content-Type: text/html; charset=windows-1252 X-Spam-Status: No, hits=1.0 required=6.0tests=SPAM_PHRASE_00_01,SUPERLONG_LINE,USER_AGENT_OEversion=2.43 X-Spam-Level: * 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Content-transfer-encoding: 8bit

Hi All

I intend to be in Tyrone/Ireland operating GI3KEV from about the 27th January for two weeks approximately. I will be active on 136.5 khz normal CW and QRS around 135.922 khz plus/minus to avoid other activity. Frequencies can vary to avoid qrm. I have VFO control. I will be active during weekdays and weekends, daytime as well as night time.

I will be transmitting QRS during late evening/early morning for Transatlantic xband QSO'S. TX 135.922 and RX on HF 7030 Khz. I will not have email facilities so therefore please reply on HF, or tel nr 0774 808 8937.

Antenna consists of a 120 feet tower with 3 x inv L antennas each with a horizontal top section of 300 feet approx.

TX H/Built mosfet, power approx 1W erp. HF antenna doublet for all bands 1.8 - 50 mhz up at 80 feet.

73 de Mal/G3KEV

From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 20605 invoked from network); 20 Jan 2003 17:46:25 -0000 Received: from netmail01.services.quay.plus.net (212.159.14.219) by mailstore with SMTP; 20 Jan 2003 17:46:25 -0000 Received: (qmail 15195 invoked by uid 10001); 20 Jan 2003 17:46:11 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail01.services.quay.plus.net with SMTP; 20 Jan 2003 17:46:11 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18afzV-0008Ri-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 20 Jan 2003 17:45:45 +0000 Received: from [195.92.193.18] (helo=cmailm1.svr.pol.co.uk) by post.thorcom.com with esmtp (Exim 4.12) id 18afzU-0008RZ-00 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 17:45:45 +0000 Received: from modem-218.new-mexico.dialup.pol.co.uk ([62.137.82.218] helo=f3a3a2) by cmailm1.svr.pol.co.uk with smtp (Exim 3.35 #1) id 18afzT-0004vA-00 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 17:45:44 +0000 Message-ID: <000b01c2c0ad$20289180$ea00a8c0@f3a3a2> From: "Laurie Mayhead" To: rsgb_lf_group@blacksheep.org Date: Mon, 20 Jan 2003 17:54:44 -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 Early morning tests Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=1.0 required=6.0tests=SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 X-Spam-Level: * 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Hi Jim and the LF group, Last nights experiment was useful,it certainly seems that early morning is a good time,however I am sure that the situation we have had recently is "average".When the earlier crossings on 136 and my 73kHz crossings were made,conditions were above average.I am sure that this requires a period of decay 14-20 days after a disturbance CME etc. As we are moving into a less active solar situation (2006 is predicted as the minimum) perhaps we should make the most of the present situation. Anyway thanks for all the reports. 73 Laurie. From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 19903 invoked from network); 20 Jan 2003 17:18:59 -0000 Received: from netmail02.services.quay.plus.net (212.159.14.221) by mailstore with SMTP; 20 Jan 2003 17:18:59 -0000 Received: (qmail 28926 invoked by uid 10001); 20 Jan 2003 17:20:28 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail02.services.quay.plus.net with SMTP; 20 Jan 2003 17:20:28 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18afaB-0008Jp-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 20 Jan 2003 17:19:35 +0000 Received: from [195.92.195.174] (helo=cmailg4.svr.pol.co.uk) by post.thorcom.com with esmtp (Exim 4.12) id 18afaB-0008Jg-00 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 17:19:35 +0000 Received: from modem-124.calaquendi.dialup.pol.co.uk ([62.136.144.124] helo=f3a3a2) by cmailg4.svr.pol.co.uk with smtp (Exim 3.35 #1) id 18afaA-0004Gj-00 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 17:19:34 +0000 Message-ID: <001201c2c0a9$78ff52c0$ea00a8c0@f3a3a2> From: "Laurie Mayhead" To: rsgb_lf_group@blacksheep.org Date: Mon, 20 Jan 2003 17:28:19 -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 AQC capture in Maryland Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=1.0 required=6.0tests=SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 X-Spam-Level: * 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Hi Lloyd, I tried to send a mail to your address but it was rejected twice.So I hope the group will excuse me sending it via the reflector.I simply want to say thanks for the capture, it looks like early morning(here) is a good time as Jim predicted.Looking foreward to recieving you chaps when the time comes. 73 Laurie. From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 11897 invoked from network); 20 Jan 2003 15:47:35 -0000 Received: from netmail02.services.quay.plus.net (212.159.14.221) by mailstore with SMTP; 20 Jan 2003 15:47:35 -0000 Received: (qmail 11400 invoked by uid 10001); 20 Jan 2003 15:47:28 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail02.services.quay.plus.net with SMTP; 20 Jan 2003 15:47:26 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18ae8K-0007yt-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 20 Jan 2003 15:46:44 +0000 Received: from [193.82.116.10] (helo=public.thorcom.com ident=[y5qZ6DDMOo1EcTRRMHw/lxVE68ML0PyJ]) by post.thorcom.com with esmtp (Exim 4.12) id 18ae8K-0007yk-00 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 15:46:44 +0000 Received: from [200.230.104.195] (helo=magicsite.magichosting.com.br) by public.thorcom.com with esmtp (Exim 4.12) id 18ae8I-0007zJ-00 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 15:46:43 +0000 Received: from Marcus (unverified [200.192.7.22]) by magicsite.magichosting.com.br (Vircom SMTPRS 5.3.232) with SMTP id ; Mon, 20 Jan 2003 13:40:11 -0800 Message-ID: <004401c2c0a2$25622860$9801a8c0@gigacom.com.br> From: "PY2PLL" To: lowfer@mailman.qth.net, rsgb_lf_group@blacksheep.org References: <23.2aadfb3f.2b5c5522@aol.com> Date: Mon, 20 Jan 2003 13:35:59 -0300 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4920.2300 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-SA-Exim-Rcpt-To: rsgb_lf_group@blacksheep.org Subject: LF: Loops x Q Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=1.4 required=6.0tests=MSG_ID_ADDED_BY_MTA_3,REFERENCES,SPAM_PHRASE_00_01, USER_AGENT_OEversion=2.43 X-Spam-Level: * 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Hi ... After read an article last year (Wireless World) about loop antennas X DCF39 calibration, I constructed a octogonal RX loop, #16 awg wire, to cover from 400KHz to 1.6MHz. There´s 9 turns, 5mm spacing, 1.9 meter diameter. About 55 meter of wire. This is the first version. Later I´ll build another one to 136KHz. Acording with this article, I should expect a Q=200 ... 220 from such loop. I considered the NTE618 to tune it and a push-pull pre-amp (J310) with gates conected to the loop ends. No resistors there. The article consider that for such loop at this frequency will have something like .20uV of thermal noise. The resistors will add some extra noise there so I removed them. But the Q=210 ... and the NTE618 Q is 200. Is there any gain If I use a dual-gang air variable driven by a step motor + reduction in place of the NTE618? P.S.: I put two tables, considering standard loop areas, both for 136 and BC band at: http://py.qsl.br/loop136e.gif and http://py.qsl.br/loop-om-e.gif 73 Marcus PY3CRX/PY2PLL http://py.qsl.br Active from "DC" to Laser ... From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 30870 invoked from network); 20 Jan 2003 14:20:50 -0000 Received: from netmail01.services.quay.plus.net (212.159.14.219) by mailstore with SMTP; 20 Jan 2003 14:20:50 -0000 Received: (qmail 20493 invoked by uid 10001); 20 Jan 2003 14:20:07 -0000 Content-Transfer-Encoding: 8bit Received: from post.thorcom.com (193.82.116.70) by netmail01.services.quay.plus.net with SMTP; 20 Jan 2003 14:20:07 -0000 X-SQ: A X-Priority: 3 X-MSMail-Priority: Normal Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18aclt-0007dz-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 20 Jan 2003 14:19:29 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from [147.197.200.9] (helo=hestia.herts.ac.uk) by post.thorcom.com with esmtp (Exim 4.12) id 18aclt-0007dq-00 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 14:19:29 +0000 Received: from gemini ([147.197.200.44] helo=gemini.herts.ac.uk) by hestia.herts.ac.uk with esmtp (Exim 3.22 #1) id 18ackM-0006Pp-00 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 14:17:54 +0000 Received: from [147.197.232.252] (helo=rsch-15.herts.ac.uk) by gemini.herts.ac.uk with esmtp (Exim 3.33 #1) id 18ackK-0000tQ-00 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 14:17:52 +0000 Message-ID: <5.1.0.14.0.20030120135340.00b09da8@gemini.herts.ac.uk> X-Sender: mj9ar@gemini.herts.ac.uk X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Mon, 20 Jan 2003 14:17:51 +0000 To: rsgb_lf_group@blacksheep.org From: "James Moritz" In-reply-to: <5.1.0.14.0.20030120111745.00b03438@gemini.herts.ac.uk> References: <5.1.0.14.0.20030119133336.00af1b50@gemini.herts.ac.uk> MIME-Version: 1.0 X-MailScanner: No Virus detected Subject: Re: LF: Early morning tests? Content-Type: text/plain; charset=us-ascii; format=flowed X-Spam-Status: No, hits=-0.5 required=6.0tests=IN_REP_TO,REFERENCES,SPAM_PHRASE_00_01version=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Dear LF Group, Thanks to all for the T/A reports. The interesting thing is that, allthough from the DCF39 plots last night was quite good by recent standards, the signal strength was not a long way above the threshold required for copy of QRSS60, and the signals fade in and out. For example, in W1TAG's "20 Jan-4" image, the M of my callsign is visible, most of the 0 has dissapeared, and the BMU is again visible. Since this same path has previously supported signals with shorter element lengths (eg, Jason during December with it's 12 sec "dots"), it is clear that signal levels can improve substantially over last night - perhaps by 10dB or more. I would like to see what the DCF39 plot looks like then! Cheers, Jim Moritz 73 de M0BMU From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 20260 invoked from network); 20 Jan 2003 13:54:20 -0000 Received: from warrior.services.quay.plus.net (212.159.14.227) by mailstore with SMTP; 20 Jan 2003 13:54:20 -0000 Received: (qmail 12813 invoked from network); 20 Jan 2003 13:54:18 -0000 Received: from post.thorcom.com (193.82.116.70) by warrior.services.quay.plus.net with SMTP; 20 Jan 2003 13:54:18 -0000 X-Priority: 3 X-MSMail-Priority: Normal X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18acMl-0007TJ-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 20 Jan 2003 13:53:31 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from [166.82.1.68] (helo=host3.ctc.net) by post.thorcom.com with esmtp (Exim 4.12) id 18acMl-0007TA-00 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 13:53:31 +0000 Received: from att.net ([166.82.181.250]) by host3.ctc.net (InterMail vK.4.03.05.03 201-232-132-103 license 2d687b22c655f23831a2faa19b737467) with ESMTP id <20030120135420.HVRQ17780.host3@att.net> for ; Mon, 20 Jan 2003 08:54:20 -0500 Message-ID: <3E2BFF56.5E28E640@att.net> Date: Mon, 20 Jan 2003 13:53:26 +0000 From: "Dexter McIntyre W4DEX" X-Mailer: Mozilla 4.77 [en] (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <5.1.0.14.0.20030120111745.00b03438@gemini.herts.ac.uk> <001201c2c07c$06a43e20$0500a8c0@charter.net> Subject: Re: LF: Early morning tests? Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=-0.8 required=6.0tests=QUOTED_EMAIL_TEXT,REFERENCES,SPAM_PHRASE_00_01, USER_AGENT_MOZILLA_XM,X_ACCEPT_LANGversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Looks like my best capture of Laurie's and Jim's signal occurred around 0630. Comparing John's captures with mine it's obvious it takes a little better conditions or a little more power to get another 1130 km. The difference certainly can't be due to skill and equipment :) Best screen is: http://www.w4dex.com/argo/20jan03/0630.jpg All overnight captures with any trace of signal can be seen from the directory: http://www.w4dex.com/argo/20jan03/ Lloyd's 0730 capture from Maryland shows good copy of both signals while Laurie's signal has vanished here. Was still seeing some of Jim's signal though. Lloyds capture: http://www.geocities.com/lacwman/135jan20.jpg Dex John Andrews wrote: > > Jim's and Laurie's excellent morning signals may be seen in the "20Jan" > files at: > http://webpages.charter.net/w1tag/136/ > > "M0BMU" sure didn't fit on one screen! > > John Andrews, W1TAG From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 1697 invoked from network); 20 Jan 2003 13:33:20 -0000 Received: from netmail01.services.quay.plus.net (212.159.14.219) by mailstore with SMTP; 20 Jan 2003 13:33:20 -0000 Received: (qmail 4125 invoked by uid 10001); 20 Jan 2003 13:34:48 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail01.services.quay.plus.net with SMTP; 20 Jan 2003 13:34:48 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18ac3U-0007LJ-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 20 Jan 2003 13:33:36 +0000 Received: from [194.73.73.93] (helo=rhenium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.12) id 18ac3U-0007LA-00 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 13:33:36 +0000 Received: from host213-1-129-74.in-addr.btopenworld.com ([213.1.129.74] helo=Main) by rhenium.btinternet.com with smtp (Exim 3.22 #16) id 18ac3T-0001Mk-00 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 13:33:35 +0000 Message-ID: <001701c2c088$58143600$6507a8c0@Main> From: "Alan Melia" To: "LF-Group" Date: Mon, 20 Jan 2003 13:32:07 -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: lloyd's plot Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=1.0 required=6.0tests=SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 X-Spam-Level: * 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Hi Lloyd there is a clear QRSS trace of "BMU" at 922 Congratulations. 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 31176 invoked from network); 20 Jan 2003 12:19:51 -0000 Received: from marstons.services.quay.plus.net (212.159.14.223) by mailstore with SMTP; 20 Jan 2003 12:19:51 -0000 Received: (qmail 8960 invoked by uid 10001); 20 Jan 2003 12:19:48 -0000 Received: from post.thorcom.com (193.82.116.70) by marstons.services.quay.plus.net with SMTP; 20 Jan 2003 12:19:48 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18aatU-00074F-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 20 Jan 2003 12:19:12 +0000 Received: from [209.225.8.20] (helo=dc-mx10.cluster1.charter.net) by post.thorcom.com with esmtp (Exim 4.12) id 18aatT-000746-00 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 12:19:11 +0000 Received: from [66.189.48.230] (HELO johncellarnew) by dc-mx10.cluster1.charter.net (CommuniGate Pro SMTP 3.5.9) with SMTP id 56539101 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 07:03:39 -0500 Message-ID: <001201c2c07c$06a43e20$0500a8c0@charter.net> From: "John Andrews" To: rsgb_lf_group@blacksheep.org References: <5.1.0.14.0.20030120111745.00b03438@gemini.herts.ac.uk> Date: Mon, 20 Jan 2003 12:04:03 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: Re: LF: Early morning tests? Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.5 required=6.0tests=REFERENCES,SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Jim's and Laurie's excellent morning signals may be seen in the "20Jan" files at: http://webpages.charter.net/w1tag/136/ "M0BMU" sure didn't fit on one screen! John Andrews, W1TAG From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 14361 invoked from network); 20 Jan 2003 12:09:56 -0000 Received: from murphys.services.quay.plus.net (212.159.14.225) by mailstore with SMTP; 20 Jan 2003 12:09:56 -0000 Received: (qmail 15163 invoked from network); 20 Jan 2003 12:09:40 -0000 Received: from post.thorcom.com (193.82.116.70) by murphys.services.quay.plus.net with SMTP; 20 Jan 2003 12:09:40 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18aaje-000701-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 20 Jan 2003 12:09:02 +0000 Received: from [205.197.48.109] (helo=gemini.smart.net) by post.thorcom.com with esmtp (Exim 4.12) id 18aajd-0006zs-00 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 12:09:02 +0000 Received: from dpc000 ([162.33.221.226]) by gemini.smart.net (8.9.1/8.9.1) with SMTP id HAA02228 for ; Mon, 20 Jan 2003 07:08:57 -0500 Message-ID: <000b01c2c07c$bd46b2c0$cc28730a@direcpc.com> From: "lloyd chastant" To: rsgb_lf_group@blacksheep.org Date: Mon, 20 Jan 2003 07:09:08 -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: LF: 135.922 capture in Maryland Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=1.0 required=6.0tests=SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 X-Spam-Level: * 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Here is a capture of AQC at about 0739z hr in Maryland www.geocities.com/lacwman/135jan20.jpg may have been traces of others?/ de Lloyd W3NF FM19MH From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 6010 invoked from network); 20 Jan 2003 12:04:11 -0000 Received: from netmail02.services.quay.plus.net (212.159.14.221) by mailstore with SMTP; 20 Jan 2003 12:04:11 -0000 Received: (qmail 24105 invoked from network); 20 Jan 2003 12:03:56 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from post.thorcom.com (193.82.116.70) by netmail02.services.quay.plus.net with SMTP; 20 Jan 2003 12:03:55 -0000 X-SQ: A X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18aaeD-0006uw-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 20 Jan 2003 12:03:25 +0000 Received: from [64.12.136.7] (helo=imo-m04.mx.aol.com) by post.thorcom.com with esmtp (Exim 4.12) id 18aaeC-0006ul-00 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 12:03:24 +0000 Received: from MarkusVester@aol.com by imo-m04.mx.aol.com (mail_out_v34.13.) id l.143.8329d3c (4262) for ; Mon, 20 Jan 2003 07:02:47 -0500 (EST) From: MarkusVester@aol.com Message-ID: <143.8329d3c.2b5d3f67@aol.com> Date: Mon, 20 Jan 2003 07:02:47 EST To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 X-Mailer: AOL 7.0 for Windows DE sub 10501 Subject: LF: Re. T/A Again Tonight Content-Type: text/html; charset=windows-1252 X-Spam-Status: No, hits=1.9 required=6.0tests=NO_REAL_NAME,SPAM_PHRASE_00_01,USER_AGENT_AOLversion=2.43 X-Spam-Level: * 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Content-transfer-encoding: 8bit Hi John, Dexter, Jim and Laurie,

congrats for the ufb results of the early morning T/A session: Jim and Laurie were continuously visible with O-signals on John's screenshots from before 05:00 until QRT around 7:30 and 8:20 respectively. Also, both callsigns are very clear on Dexters 07:10 capture. No trace though of the third party in the middle (myself) ;-(.

Compared to Sat/Sun, DCF39 plots from W3EEE showed a later start of the opening, with strong saturated levels after 02:00 and a continuous flat peak from 04:00 right through to the short interruption at 07:30.

Tnx for watching and posting captures, 73 es best wishes

Markus, DF6NM
From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 14117 invoked from network); 20 Jan 2003 11:37:24 -0000 Received: from marstons.services.quay.plus.net (212.159.14.223) by mailstore with SMTP; 20 Jan 2003 11:37:24 -0000 Received: (qmail 8490 invoked by uid 10001); 20 Jan 2003 11:36:45 -0000 Content-Transfer-Encoding: 8bit Received: from post.thorcom.com (193.82.116.70) by marstons.services.quay.plus.net with SMTP; 20 Jan 2003 11:36:45 -0000 X-Priority: 3 X-MSMail-Priority: Normal X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18aaD4-0006mp-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 20 Jan 2003 11:35:22 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from [147.197.200.9] (helo=hestia.herts.ac.uk) by post.thorcom.com with esmtp (Exim 4.12) id 18aaD3-0006mg-00 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 11:35:21 +0000 Received: from gemini ([147.197.200.44] helo=gemini.herts.ac.uk) by hestia.herts.ac.uk with esmtp (Exim 3.22 #1) id 18aaCo-0006I7-00 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 11:35:06 +0000 Received: from [147.197.232.252] (helo=rsch-15.herts.ac.uk) by gemini.herts.ac.uk with esmtp (Exim 3.33 #1) id 18aaCm-0003I4-00 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 11:35:04 +0000 Message-ID: <5.1.0.14.0.20030120111745.00b03438@gemini.herts.ac.uk> X-Sender: mj9ar@gemini.herts.ac.uk X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Mon, 20 Jan 2003 11:28:17 +0000 To: rsgb_lf_group@blacksheep.org From: "James Moritz" In-reply-to: <5.1.0.14.0.20030119133336.00af1b50@gemini.herts.ac.uk> MIME-Version: 1.0 X-MailScanner: No Virus detected Subject: Re: LF: Early morning tests? Content-Type: text/plain; charset=us-ascii; format=flowed X-Spam-Status: No, hits=0.0 required=6.0tests=IN_REP_TO,SPAM_PHRASE_00_01version=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Dear LF Group, Transmitted "M0BMU" repeated from about 0400 - 0730 utc this morning using QRSS60 on 139.9225kHz, and something around 1W ERP. I also saw DFCW signals from G3AQC and DF6NM. The signal levels on W3EEE's DCF39 chart look good for that period, up near the "clipping" level - anybody see anything? Cheers, Jim Moritz 73 de M0BMU From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 23570 invoked from network); 20 Jan 2003 10:16:24 -0000 Received: from netmail01.services.quay.plus.net (212.159.14.219) by mailstore with SMTP; 20 Jan 2003 10:16:24 -0000 Received: (qmail 24275 invoked from network); 20 Jan 2003 10:15:42 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail01.services.quay.plus.net with SMTP; 20 Jan 2003 10:15:42 -0000 X-Priority: 3 X-MSMail-Priority: Normal X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18aYuZ-0006On-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 20 Jan 2003 10:12:11 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from [212.35.226.183] (helo=k2.pncl.co.uk) by post.thorcom.com with esmtp (Exim 4.12) id 18aYuZ-0006Oe-00 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 10:12:11 +0000 Received: from k7t.pncl.co.uk (82.234.35.212.in-addr.arpa.ip-pool.cix.co.uk [212.35.234.82]) by k2.pncl.co.uk (8.12.3/8.12.3/Debian -4) with ESMTP id h0KAC9sw030136 for ; Mon, 20 Jan 2003 10:12:10 GMT Message-ID: <5.1.0.14.2.20030120101112.00a1f220@mail.pncl.co.uk> X-Sender: blanch@mail.pncl.co.uk X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Mon, 20 Jan 2003 10:13:57 +0000 To: rsgb_lf_group@blacksheep.org From: "Walter Blanchard" In-reply-to: <008001c2be80$03984f80$93c863d5@BI57429bankinter> MIME-Version: 1.0 Subject: Re: LF: LF commercial stations Content-Type: multipart/mixed; boundary="------------090202060502010204000403" X-Spam-Status: No, hits=-1.3 required=6.0tests=EMAIL_ATTRIBUTION,IN_REP_TO,MIME_LONG_LINE_QP, SPAM_PHRASE_00_01version=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false This is a multi-part message in MIME format. --------------090202060502010204000403 Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: 8bit At 00:27 18/01/03 +0100, EA1PX wrote:

Hi Group:

I copy transmissions on 132.930 and 133.230 kHz.
Can anyone to confirm me if they are of the Datatrak System and where are the TX located?

73 de José, EA1PX

Hello Jose,

They are Datatrak but there are no stations in Iberia so it must be skywave from the UK, Dutch or Austrian transmitters. Difficult to tell which because they are interleaved.

73 de Walter, G3JKV
--------------090202060502010204000403 Content-Type: text/plain; charset=windows-1252; name="ATT12275.txt" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="ATT12275.txt" --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.427 / Virus Database: 240 - Release Date: 06/12/02 --------------090202060502010204000403-- From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 8178 invoked from network); 20 Jan 2003 10:13:48 -0000 Received: from warrior.services.quay.plus.net (212.159.14.227) by mailstore with SMTP; 20 Jan 2003 10:13:48 -0000 Received: (qmail 25219 invoked from network); 20 Jan 2003 10:13:15 -0000 Received: from post.thorcom.com (193.82.116.70) by warrior.services.quay.plus.net with SMTP; 20 Jan 2003 10:13:15 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18aYra-0006NX-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 20 Jan 2003 10:09:06 +0000 Received: from [195.92.193.210] (helo=cmailm2.svr.pol.co.uk) by post.thorcom.com with esmtp (Exim 4.12) id 18aYra-0006NO-00 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 10:09:06 +0000 Received: from modem-33.kentucky.dialup.pol.co.uk ([62.137.68.33] helo=f3a3a2) by cmailm2.svr.pol.co.uk with smtp (Exim 3.35 #1) id 18aYrY-0003PK-00 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 10:09:05 +0000 Message-ID: <000b01c2c06d$554a5be0$ea00a8c0@f3a3a2> From: "Laurie Mayhead" To: rsgb_lf_group@blacksheep.org Date: Mon, 20 Jan 2003 10:17:49 -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: Re. T/A Again Tonight Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=1.0 required=6.0tests=SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 X-Spam-Level: * 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Hi All, Further to Jims tests,I made the following transmissions last night/this morning. 0900 - 0000 AQC repeated 0500 AQC once 20 mins. 0600 AQC once 20 mins 0700 - 0830 AQC repeated Hope this helps. 73 Laurie. From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 1272 invoked from network); 20 Jan 2003 00:13:54 -0000 Received: from murphys.services.quay.plus.net (212.159.14.225) by mailstore with SMTP; 20 Jan 2003 00:13:54 -0000 Received: (qmail 331 invoked from network); 20 Jan 2003 00:13:07 -0000 Received: from post.thorcom.com (193.82.116.70) by murphys.services.quay.plus.net with SMTP; 20 Jan 2003 00:13:07 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18aPYE-0004vo-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 20 Jan 2003 00:12:30 +0000 Received: from [209.225.8.17] (helo=mx07.cluster1.charter.net) by post.thorcom.com with esmtp (Exim 4.12) id 18aPYD-0004ve-00 for rsgb_lf_group@blacksheep.org; Mon, 20 Jan 2003 00:12:29 +0000 Received: from [66.189.48.230] (HELO johncellarnew) by mx07.cluster1.charter.net (CommuniGate Pro SMTP 3.5.9) with SMTP id 22215271 for rsgb_lf_group@blacksheep.org; Sun, 19 Jan 2003 19:11:28 -0500 Message-ID: <000401c2c018$9a3e08a0$0500a8c0@charter.net> From: "John Andrews" To: rsgb_lf_group@blacksheep.org References: <158.1a9c4854.2b5c77a4@aol.com> Date: Mon, 20 Jan 2003 00:12:21 -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: Re: LF: T/A Again Tonight Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.5 required=6.0tests=REFERENCES,SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Just received a good AQC on 135.9209/135.921. No other signals thus far. I should be getting a Loran line on 135.92092 later on, so I may have trouble with that frequency. John Andrews, W1TAG From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 19133 invoked from network); 19 Jan 2003 23:29:56 -0000 Received: from marstons.services.quay.plus.net (212.159.14.223) by mailstore with SMTP; 19 Jan 2003 23:29:56 -0000 Received: (qmail 24062 invoked by uid 10001); 19 Jan 2003 23:29:17 -0000 Received: from post.thorcom.com (193.82.116.70) by marstons.services.quay.plus.net with SMTP; 19 Jan 2003 23:29:17 -0000 X-Priority: 3 X-MSMail-Priority: Normal X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18aOrs-0004mQ-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 19 Jan 2003 23:28:44 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from [166.82.1.68] (helo=host3.ctc.net) by post.thorcom.com with esmtp (Exim 4.12) id 18aOrr-0004mH-00 for rsgb_lf_group@blacksheep.org; Sun, 19 Jan 2003 23:28:44 +0000 Received: from att.net ([166.82.181.250]) by host3.ctc.net (InterMail vK.4.03.05.03 201-232-132-103 license 2d687b22c655f23831a2faa19b737467) with ESMTP id <20030119232932.XKIK16020.host3@att.net> for ; Sun, 19 Jan 2003 18:29:32 -0500 Message-ID: <3E2B34A8.3AE13590@att.net> Date: Sun, 19 Jan 2003 23:28:40 +0000 From: "Dexter McIntyre W4DEX" X-Mailer: Mozilla 4.77 [en] (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <158.1a9c4854.2b5c77a4@aol.com> Subject: Re: LF: T/A Again Tonight Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=-0.7 required=6.0tests=DEAR_SOMEBODY,QUOTED_EMAIL_TEXT,REFERENCES, SPAM_PHRASE_00_01,USER_AGENT_MOZILLA_XM,X_ACCEPT_LANGversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false I'm up and running on 135 kHz as of 23:00 hrs. Screen captures will be posted at the usual location: http://www.w4dex.com/argo/135khz.jpg Will leave system running overnight in auto mode. Dex MarkusVester@aol.com wrote: > > Dear John and LF Group, > > now Sunday 21:30, I have signed on using 135922.2 /.3Hz DFCW > (60s/20s), which is 1.28Hz above Laurie's AQC. Will try to keep going > for at least a couple of hours now and then come back in the morning > around 06:00. Wx here is humid and no frost, EDRP abt 0.2W, some 4dB > less than a week ago. > > 73 de Markus, DF6NM From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 9284 invoked from network); 19 Jan 2003 23:19:54 -0000 Received: from netmail01.services.quay.plus.net (212.159.14.219) by mailstore with SMTP; 19 Jan 2003 23:19:54 -0000 Received: (qmail 25294 invoked from network); 19 Jan 2003 23:19:53 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail01.services.quay.plus.net with SMTP; 19 Jan 2003 23:19:52 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18aOiX-0004gL-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 19 Jan 2003 23:19:05 +0000 Received: from [194.73.73.81] (helo=tungsten.btinternet.com) by post.thorcom.com with esmtp (Exim 4.12) id 18aOiX-0004gC-00 for rsgb_lf_group@blacksheep.org; Sun, 19 Jan 2003 23:19:05 +0000 Received: from host213-122-86-98.in-addr.btopenworld.com ([213.122.86.98] helo=Main) by tungsten.btinternet.com with smtp (Exim 3.22 #16) id 18aOiW-0003Jh-00 for rsgb_lf_group@blacksheep.org; Sun, 19 Jan 2003 23:19:04 +0000 Message-ID: <000f01c2c011$042e10a0$6507a8c0@Main> From: "Alan Melia" To: "LF-Group" Date: Sun, 19 Jan 2003 23:17:14 -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: LF propagation 19/20th Jan Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.0 required=6.0tests=SPAM_PHRASE_00_01,SUBJECT_MONTH,SUBJECT_MONTH_2, USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Hi All, nothing much has changed on the solar front. The day has been quiet with no flares and a background X-ray flux of about B5. The Kp index did go up to 4 again for 3 perios, and is expected to stay in the 2 to 4 range over the next few days. I dont expect that increase to have a great effect on conditions at 136kHz. There is just the possibility that it may start to increase absorption a little from Tuesday, though these low levels (4) in the past have not produced noticable effects. The first signs of trouble will probably be deep troughs on Steve's plots. Good Luck to those trying the early morning "watch". 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 32372 invoked from network); 19 Jan 2003 21:55:07 -0000 Received: from netmail02.services.quay.plus.net (212.159.14.221) by mailstore with SMTP; 19 Jan 2003 21:55:07 -0000 Received: (qmail 10696 invoked from network); 19 Jan 2003 21:55:06 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from post.thorcom.com (193.82.116.70) by netmail02.services.quay.plus.net with SMTP; 19 Jan 2003 21:55:06 -0000 X-SQ: A X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18aNLP-0004RP-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 19 Jan 2003 21:51:07 +0000 Received: from [64.12.136.162] (helo=imo-m07.mx.aol.com) by post.thorcom.com with esmtp (Exim 4.12) id 18aNLN-0004RG-00 for rsgb_lf_group@blacksheep.org; Sun, 19 Jan 2003 21:51:05 +0000 Received: from MarkusVester@aol.com by imo-m07.mx.aol.com (mail_out_v34.13.) id l.158.1a9c4854 (4552) for ; Sun, 19 Jan 2003 16:50:28 -0500 (EST) From: MarkusVester@aol.com Message-ID: <158.1a9c4854.2b5c77a4@aol.com> Date: Sun, 19 Jan 2003 16:50:28 EST To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 X-Mailer: AOL 7.0 for Windows DE sub 10501 Subject: Re: LF: T/A Again Tonight Content-Type: text/html; charset=windows-1252 X-Spam-Status: No, hits=2.0 required=6.0tests=DEAR_SOMEBODY,NO_REAL_NAME,SPAM_PHRASE_00_01,USER_AGENT_AOLversion=2.43 X-Spam-Level: ** 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Content-transfer-encoding: 8bit Dear John and LF Group,

now Sunday 21:30, I have signed on using 135922.2 /.3Hz DFCW (60s/20s), which is 1.28Hz above Laurie's AQC. Will try to keep going for at least a couple of hours now and then come back in the morning around 06:00. Wx here is humid and no frost, EDRP abt 0.2W, some 4dB less than a week ago.

73 de Markus, DF6NM
From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 13703 invoked from network); 19 Jan 2003 20:42:11 -0000 Received: from murphys.services.quay.plus.net (212.159.14.225) by mailstore with SMTP; 19 Jan 2003 20:42:11 -0000 Received: (qmail 18767 invoked from network); 19 Jan 2003 20:41:24 -0000 Received: from post.thorcom.com (193.82.116.70) by murphys.services.quay.plus.net with SMTP; 19 Jan 2003 20:41:24 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18aMEN-0004Cu-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 19 Jan 2003 20:39:47 +0000 Received: from [213.40.2.15] (helo=bedpan.sout.netline.net.uk) by post.thorcom.com with esmtp (Exim 4.12) id 18aMEM-0004Cj-00 for rsgb_lf_group@blacksheep.org; Sun, 19 Jan 2003 20:39:46 +0000 Received: from [213.40.211.98] (helo=tcs1) by bedpan.sout.netline.net.uk with smtp (Exim 4.04) id 18aMDq-0006rM-00 for rsgb_lf_group@blacksheep.org; Sun, 19 Jan 2003 20:39:15 +0000 From: "G4WGT" To: "Rsgb_Lf_Group" Date: Sun, 19 Jan 2003 20:40:53 -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: Signal. Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.5 required=6.0tests=SPAM_PHRASE_00_01,TO_LOCALPART_EQ_REAL,USER_AGENT_OUTLOOKversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Hi to you all at LF, For about 3 or four days or so I have been receiving a cw type signal on about 137.280 Khz continually sending what is like a letter N without breaks or spaces, something like "dah dit dah dit dah dit dah dit" continuously. It has only recently appeared it is audible but weak & visually the characters are perfectly repetitive (always the same space, dot & dash length). Can anyone else hear/see it or could it be something local to me or a mix product ? Would appreciate any explanation. Thanks 73 Gary G4WGT --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.427 / Virus Database: 240 - Release Date: 06/12/2002 From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 24748 invoked from network); 19 Jan 2003 18:47:50 -0000 Received: from netmail01.services.quay.plus.net (212.159.14.219) by mailstore with SMTP; 19 Jan 2003 18:47:50 -0000 Received: (qmail 17511 invoked from network); 19 Jan 2003 18:47:48 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail01.services.quay.plus.net with SMTP; 19 Jan 2003 18:47:48 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18aKTN-0003s8-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 19 Jan 2003 18:47:09 +0000 Received: from [62.253.164.42] (helo=mta2-svc.business.ntl.com) by post.thorcom.com with esmtp (Exim 4.12) id 18aKTI-0003rz-00 for rsgb_lf_group@blacksheep.org; Sun, 19 Jan 2003 18:47:04 +0000 Received: from l8p8y6 ([62.252.205.172]) by mta2-svc.business.ntl.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with SMTP id <20030119184704.FXSL21072.mta2-svc.business.ntl.com@l8p8y6> for ; Sun, 19 Jan 2003 18:47:04 +0000 Message-ID: <000c01c2bfeb$26733760$accdfc3e@l8p8y6> From: "hamilton mal" To: rsgb_lf_group@blacksheep.org Date: Sun, 19 Jan 2003 18:45:37 -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: Cockatoo Content-Type: text/html; charset=windows-1252 X-Spam-Status: No, hits=1.0 required=6.0tests=SPAM_PHRASE_00_01,SUPERLONG_LINE,USER_AGENT_OEversion=2.43 X-Spam-Level: * 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Content-transfer-encoding: 8bit

I have just worked VK3IO /Ron in Cockatoo Aus on 160 metres. This is a good omen for tonight for those adventuring to cross the Atlantic on 136 khz. In the past when 160 prop is good likewise LF is good for long haul.

Good Luck de Mal.G3KEV

From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 11692 invoked from network); 19 Jan 2003 17:31:01 -0000 Received: from murphys.services.quay.plus.net (212.159.14.225) by mailstore with SMTP; 19 Jan 2003 17:31:01 -0000 Received: (qmail 16629 invoked from network); 19 Jan 2003 17:30:53 -0000 Received: from post.thorcom.com (193.82.116.70) by murphys.services.quay.plus.net with SMTP; 19 Jan 2003 17:30:52 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18aJGh-0003eO-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 19 Jan 2003 17:29:59 +0000 Received: from [62.253.164.44] (helo=mta4-svc.business.ntl.com) by post.thorcom.com with esmtp (Exim 4.12) id 18aJGh-0003eF-00 for rsgb_lf_group@blacksheep.org; Sun, 19 Jan 2003 17:29:59 +0000 Received: from ian ([62.252.209.120]) by mta4-svc.business.ntl.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with SMTP id <20030119172958.JYLN29609.mta4-svc.business.ntl.com@ian> for ; Sun, 19 Jan 2003 17:29:58 +0000 Message-ID: <000d01c2bfe0$4fdc1c80$78d1fc3e@ian> From: "Ian Kyle" To: rsgb_lf_group@blacksheep.org Date: Sun, 19 Jan 2003 17:28:40 -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: LF activity. Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=1.0 required=6.0tests=SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 X-Spam-Level: * 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false To whom it may concern, for various reasons there will be no radio activity from MI0AYZ for a few weeks, although I shall still be watching the reflector. Anyone wanting a 73KHz QSO will I hope get one before the season closes. 73, Ian GI8AYZ/MI0AYZ From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 29906 invoked from network); 19 Jan 2003 14:13:29 -0000 Received: from netmail01.services.quay.plus.net (212.159.14.219) by mailstore with SMTP; 19 Jan 2003 14:13:29 -0000 Received: (qmail 23969 invoked from network); 19 Jan 2003 14:14:56 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail01.services.quay.plus.net with SMTP; 19 Jan 2003 14:14:55 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18aGDY-000392-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 19 Jan 2003 14:14:32 +0000 Received: from [209.225.8.27] (helo=mx17.cluster1.charter.net) by post.thorcom.com with esmtp (Exim 4.12) id 18aGDY-00038t-00 for rsgb_lf_group@blacksheep.org; Sun, 19 Jan 2003 14:14:32 +0000 Received: from [66.189.48.230] (HELO johncellarnew) by mx17.cluster1.charter.net (CommuniGate Pro SMTP 3.5.9) with SMTP id 23443573 for rsgb_lf_group@blacksheep.org; Sun, 19 Jan 2003 09:14:01 -0500 Message-ID: <001701c2bfc5$11e0c180$0500a8c0@charter.net> From: "John Andrews" To: rsgb_lf_group@blacksheep.org References: <5.1.0.14.0.20030119133336.00af1b50@gemini.herts.ac.uk> Date: Sun, 19 Jan 2003 14:14:24 -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: T/A Again Tonight Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.5 required=6.0tests=REFERENCES,SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false I will run the screen captures again tonight (Sunday --> Monday) on 135.922 kHz, starting at 2100 and ending at 1200 on Monday. This should take care of any who don't have to go to work tomorrow, as well as those who can't wait to get there. Jim's suggestion is an excellent one. I've had my best results here in the U.S. during the immediate pre-dawn hours. Captures will be posted at: http://webpages.charter.net/w1tag/136-1.jpg John Andrews, W1TAG From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 18386 invoked from network); 19 Jan 2003 14:09:18 -0000 Received: from netmail01.services.quay.plus.net (212.159.14.219) by mailstore with SMTP; 19 Jan 2003 14:09:18 -0000 Received: (qmail 20987 invoked from network); 19 Jan 2003 14:08:33 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail01.services.quay.plus.net with SMTP; 19 Jan 2003 14:08:33 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18aG7G-00035M-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 19 Jan 2003 14:08:02 +0000 Received: from [209.225.8.20] (helo=dc-mx10.cluster1.charter.net) by post.thorcom.com with esmtp (Exim 4.12) id 18aG7F-000356-00 for rsgb_lf_group@blacksheep.org; Sun, 19 Jan 2003 14:08:01 +0000 Received: from [66.189.48.230] (HELO johncellarnew) by dc-mx10.cluster1.charter.net (CommuniGate Pro SMTP 3.5.9) with SMTP id 56179456 for rsgb_lf_group@blacksheep.org; Sun, 19 Jan 2003 09:07:30 -0500 Message-ID: <001301c2bfc4$28e9c760$0500a8c0@charter.net> From: "John Andrews" To: rsgb_lf_group@blacksheep.org References: <001d01c2bf62$233a03a0$597e6051@oemcomputer> <00b001c2bf63$ce652d80$0500a8c0@charter.net> <000801c2bfbe$526c0ea0$597e6051@oemcomputer> Date: Sun, 19 Jan 2003 14:07:53 -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: Re: T/A Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.5 required=6.0tests=REFERENCES,SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Mike, > I think you are right. I took a couple of screen dumps from your site and > cannot see anything I could positively identify as my sigs. Do you have an > archive of the night's captures? I have posted four captures from the most productive part of the night at: http://webpages.charter.net/w1tag/136/ The Newfoundland line shouldn't have affected my ability to see you, but perhaps you could go a little "north" of that. John Andrews, W1TAG From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 15715 invoked from network); 19 Jan 2003 13:56:37 -0000 Received: from warrior.services.quay.plus.net (212.159.14.227) by mailstore with SMTP; 19 Jan 2003 13:56:37 -0000 Received: (qmail 1854 invoked from network); 19 Jan 2003 13:58:02 -0000 Content-Transfer-Encoding: 8bit Received: from post.thorcom.com (193.82.116.70) by warrior.services.quay.plus.net with SMTP; 19 Jan 2003 13:58:02 -0000 X-Priority: 3 X-MSMail-Priority: Normal X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18aFx9-0002zm-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 19 Jan 2003 13:57:35 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from [147.197.200.9] (helo=hestia.herts.ac.uk) by post.thorcom.com with esmtp (Exim 4.12) id 18aFx9-0002zd-00 for rsgb_lf_group@blacksheep.org; Sun, 19 Jan 2003 13:57:35 +0000 Received: from gemini ([147.197.200.44] helo=gemini.herts.ac.uk) by hestia.herts.ac.uk with esmtp (Exim 3.22 #1) id 18aFx5-000258-00 for rsgb_lf_group@blacksheep.org; Sun, 19 Jan 2003 13:57:31 +0000 Received: from [147.197.232.252] (helo=rsch-15.herts.ac.uk) by gemini.herts.ac.uk with esmtp (Exim 3.33 #1) id 18aFx4-0001gB-00 for rsgb_lf_group@blacksheep.org; Sun, 19 Jan 2003 13:57:30 +0000 Message-ID: <5.1.0.14.0.20030119133336.00af1b50@gemini.herts.ac.uk> X-Sender: mj9ar@gemini.herts.ac.uk X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Sun, 19 Jan 2003 13:54:36 +0000 To: rsgb_lf_group@blacksheep.org From: "James Moritz" MIME-Version: 1.0 X-MailScanner: No Virus detected Subject: LF: Early morning tests? Content-Type: text/plain; charset=us-ascii; format=flowed X-Spam-Status: No, hits=0.5 required=6.0tests=SPAM_PHRASE_01_02version=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Dear LF Group, Looking at W3EEE's very useful graphs of DCF39 over the last week or so, it looks like the best conditions are quite consistently in the few hours before 0600 - it's just unfortunate that normal humans like to be tucked up in bed at that time! So in an attempt to find out if T/A propagation really is better then, I propose to do some tests tomorrow morning, starting before or at 0400 and carrying on until 0700 or so - so if US listeners would like to leave their gear running until then, hopefully something will be seen. I will try QRSS60 on 135.9225kHz, unless someone is already there, in which case I will re-tune a few tenths of a Hz. Any reports will be very welcome. Cheers, Jim Moritz 73 de M0BMU From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 23121 invoked from network); 19 Jan 2003 13:27:35 -0000 Received: from marstons.services.quay.plus.net (212.159.14.223) by mailstore with SMTP; 19 Jan 2003 13:27:35 -0000 Received: (qmail 20090 invoked by uid 10001); 19 Jan 2003 13:29:01 -0000 Received: from post.thorcom.com (193.82.116.70) by marstons.services.quay.plus.net with SMTP; 19 Jan 2003 13:29:01 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18aFRa-0002rb-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 19 Jan 2003 13:24:58 +0000 Received: from [62.253.162.47] (helo=mta07-svc.ntlworld.com) by post.thorcom.com with esmtp (Exim 4.12) id 18aFRV-0002rS-00 for rsgb_lf_group@blacksheep.org; Sun, 19 Jan 2003 13:24:53 +0000 Received: from oemcomputer ([81.96.126.89]) by mta07-svc.ntlworld.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with SMTP id <20030119132449.ZRES5233.mta07-svc.ntlworld.com@oemcomputer> for ; Sun, 19 Jan 2003 13:24:49 +0000 Message-ID: <000801c2bfbe$526c0ea0$597e6051@oemcomputer> From: "Mike Dennison" To: rsgb_lf_group@blacksheep.org References: <001d01c2bf62$233a03a0$597e6051@oemcomputer> <00b001c2bf63$ce652d80$0500a8c0@charter.net> Date: Sun, 19 Jan 2003 13:26:06 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: Re: T/A Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=-0.3 required=6.0tests=QUOTED_EMAIL_TEXT,REFERENCES,SPAM_PHRASE_00_01, USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false > I believe the signal you see is a Loran line from Newfoundland on 135921.60. > I can't see any sign of your signal in the captures, but please do go > through them! > John Andrews, W1TAG I think you are right. I took a couple of screen dumps from your site and cannot see anything I could positively identify as my sigs. Do you have an archive of the night's captures? Looks like I need to improve the signal to get as far as the USA. The W3EEE plot of DCF39 suggested that the band was open for several hours, so perhaps a QRSS120 transmission would be worthwhile. In the meantime, I will use a frequency a little higher to avoid that Loran line. Mike, G3XDV http://www.lf.thersgb.net ================= From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 26271 invoked from network); 19 Jan 2003 02:39:46 -0000 Received: from warrior.services.quay.plus.net (212.159.14.227) by mailstore with SMTP; 19 Jan 2003 02:39:46 -0000 Received: (qmail 16326 invoked from network); 19 Jan 2003 02:39:09 -0000 Received: from post.thorcom.com (193.82.116.70) by warrior.services.quay.plus.net with SMTP; 19 Jan 2003 02:39:09 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18a5Lm-000834-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 19 Jan 2003 02:38:18 +0000 Received: from [209.225.8.24] (helo=dc-mx14.cluster1.charter.net) by post.thorcom.com with esmtp (Exim 4.12) id 18a5Lm-00082r-00 for rsgb_lf_group@blacksheep.org; Sun, 19 Jan 2003 02:38:18 +0000 Received: from [66.189.48.230] (HELO johncellarnew) by dc-mx14.cluster1.charter.net (CommuniGate Pro SMTP 3.5.9) with SMTP id 54472215 for rsgb_lf_group@blacksheep.org; Sat, 18 Jan 2003 21:37:47 -0500 Message-ID: <00b001c2bf63$ce652d80$0500a8c0@charter.net> From: "John Andrews" To: rsgb_lf_group@blacksheep.org References: <001d01c2bf62$233a03a0$597e6051@oemcomputer> Date: Sun, 19 Jan 2003 02:38:10 -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: LF: Re: T/A Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=-0.3 required=6.0tests=QUOTED_EMAIL_TEXT,REFERENCES,SPAM_PHRASE_00_01, USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Mike, > There is one other > signal present which is within 0.1Hz of my frequency and has some of the > characteristics of my signal (dots and dashes made from 30s elements with > gaps in between), but not sure. Will do a comparison in the morning between > my local Argo monitoring and the W1TAG Argo. I believe the signal you see is a Loran line from Newfoundland on 135921.60. I can't see any sign of your signal in the captures, but please do go through them! I will leave the capture running overnight in case there are any early risers who may want to try the morning path. John Andrews, W1TAG From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 18830 invoked from network); 19 Jan 2003 02:27:13 -0000 Received: from murphys.services.quay.plus.net (212.159.14.225) by mailstore with SMTP; 19 Jan 2003 02:27:13 -0000 Received: (qmail 19013 invoked from network); 19 Jan 2003 02:26:35 -0000 Received: from post.thorcom.com (193.82.116.70) by murphys.services.quay.plus.net with SMTP; 19 Jan 2003 02:26:34 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18a59U-0007wV-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 19 Jan 2003 02:25:36 +0000 Received: from [62.253.162.45] (helo=mta05-svc.ntlworld.com) by post.thorcom.com with esmtp (Exim 4.12) id 18a59U-0007wM-00 for rsgb_lf_group@blacksheep.org; Sun, 19 Jan 2003 02:25:36 +0000 Received: from oemcomputer ([81.96.126.89]) by mta05-svc.ntlworld.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with SMTP id <20030119022535.YKXO900.mta05-svc.ntlworld.com@oemcomputer> for ; Sun, 19 Jan 2003 02:25:35 +0000 Message-ID: <001d01c2bf62$233a03a0$597e6051@oemcomputer> From: "Mike Dennison" To: rsgb_lf_group@blacksheep.org Date: Sun, 19 Jan 2003 02:26:13 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: T/A Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=1.0 required=6.0tests=SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 X-Spam-Level: * 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Nice sigs from Laurie and Dave on the W1TAG screen. There is one other signal present which is within 0.1Hz of my frequency and has some of the characteristics of my signal (dots and dashes made from 30s elements with gaps in between), but not sure. Will do a comparison in the morning between my local Argo monitoring and the W1TAG Argo. Going to bed now at 0225. I will pay for this late night with a migraine! The things we do for ham radio. Mike, G3XDV http://www.lf.thersgb.net ================== From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 24714 invoked from network); 19 Jan 2003 01:56:08 -0000 Received: from netmail02.services.quay.plus.net (212.159.14.221) by mailstore with SMTP; 19 Jan 2003 01:56:08 -0000 Received: (qmail 29063 invoked from network); 19 Jan 2003 01:55:55 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail02.services.quay.plus.net with SMTP; 19 Jan 2003 01:55:55 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18a4g0-0007lv-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 19 Jan 2003 01:55:08 +0000 Received: from [195.92.195.172] (helo=cmailg2.svr.pol.co.uk) by post.thorcom.com with esmtp (Exim 4.12) id 18a4g0-0007lm-00 for rsgb_lf_group@blacksheep.org; Sun, 19 Jan 2003 01:55:08 +0000 Received: from modem-32.draugluin.dialup.pol.co.uk ([62.136.158.32] helo=f3a3a2) by cmailg2.svr.pol.co.uk with smtp (Exim 3.35 #1) id 18a4fz-00081s-00 for rsgb_lf_group@blacksheep.org; Sun, 19 Jan 2003 01:55:07 +0000 Message-ID: <000401c2bf5f$2864fae0$ea00a8c0@f3a3a2> From: "Laurie Mayhead" To: rsgb_lf_group@blacksheep.org Date: Sun, 19 Jan 2003 02:01:33 -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 135.921 tonight Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=1.0 required=6.0tests=SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 X-Spam-Level: * 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Gotta get some sleep now,thanks for the captures. Best of luck GN all. Laurie. From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 17621 invoked from network); 19 Jan 2003 01:35:02 -0000 Received: from netmail01.services.quay.plus.net (212.159.14.219) by mailstore with SMTP; 19 Jan 2003 01:35:02 -0000 Received: (qmail 13764 invoked from network); 19 Jan 2003 01:34:31 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail01.services.quay.plus.net with SMTP; 19 Jan 2003 01:34:31 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18a4LR-0007ce-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 19 Jan 2003 01:33:53 +0000 Received: from [194.73.73.147] (helo=einsteinium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.12) id 18a4LQ-0007cV-00 for rsgb_lf_group@blacksheep.org; Sun, 19 Jan 2003 01:33:52 +0000 Received: from host217-35-12-143.in-addr.btopenworld.com ([217.35.12.143] helo=dellboy) by einsteinium.btinternet.com with smtp (Exim 3.22 #16) id 18a4LQ-0000PT-00 for rsgb_lf_group@blacksheep.org; Sun, 19 Jan 2003 01:33:52 +0000 Message-ID: <003a01c2bf5a$f484c920$1700a8c0@home> From: "Dave Pick" To: "LF Group" Date: Sun, 19 Jan 2003 01:34:48 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4920.2300 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: tests Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=1.0 required=6.0tests=SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 X-Spam-Level: * 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Thanks everyone. I'm off to bed. Last message was "GN" in case it's not too clear! I had a bit of tripping due to heavy rain which delayed the last "M" of the callsign at 01:10ish. Good Night. Dave 'YXM. From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 11836 invoked from network); 19 Jan 2003 01:31:54 -0000 Received: from netmail02.services.quay.plus.net (212.159.14.221) by mailstore with SMTP; 19 Jan 2003 01:31:54 -0000 Received: (qmail 16033 invoked from network); 19 Jan 2003 01:31:10 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail02.services.quay.plus.net with SMTP; 19 Jan 2003 01:31:10 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18a4I2-0007ZM-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 19 Jan 2003 01:30:22 +0000 Received: from [209.225.8.15] (helo=mx05.cluster1.charter.net) by post.thorcom.com with esmtp (Exim 4.12) id 18a4I2-0007Z8-00 for rsgb_lf_group@blacksheep.org; Sun, 19 Jan 2003 01:30:22 +0000 Received: from [66.189.48.230] (HELO johncellarnew) by mx05.cluster1.charter.net (CommuniGate Pro SMTP 3.5.9) with SMTP id 56145412 for rsgb_lf_group@blacksheep.org; Sat, 18 Jan 2003 20:29:51 -0500 Message-ID: <00a401c2bf5a$50bb28c0$0500a8c0@charter.net> From: "John Andrews" To: rsgb_lf_group@blacksheep.org References: <000901c2bf26$d4e90a60$597e6051@oemcomputer> <005001c2bf28$561355e0$1700a8c0@home> <008701c2bf52$73ba2e00$0500a8c0@charter.net> <002c01c2bf55$1202e460$1700a8c0@home> Date: Sun, 19 Jan 2003 01:30:13 -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: Re: Re: T/A tonight Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=1.8 required=6.0tests=REFERENCES,SPAM_PHRASE_00_01,UPPERCASE_25_50,USER_AGENT_OEversion=2.43 X-Spam-Level: * 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Dave, Was that a GN from you? If so, GN! John A. From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 31493 invoked from network); 19 Jan 2003 01:12:20 -0000 Received: from netmail01.services.quay.plus.net (212.159.14.219) by mailstore with SMTP; 19 Jan 2003 01:12:20 -0000 Received: (qmail 1430 invoked from network); 19 Jan 2003 01:12:08 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail01.services.quay.plus.net with SMTP; 19 Jan 2003 01:12:08 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18a3zP-0007So-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 19 Jan 2003 01:11:07 +0000 Received: from [195.92.193.19] (helo=cmailm3.svr.pol.co.uk) by post.thorcom.com with esmtp (Exim 4.12) id 18a3zP-0007Sf-00 for rsgb_lf_group@blacksheep.org; Sun, 19 Jan 2003 01:11:07 +0000 Received: from modem-16.beleg.dialup.pol.co.uk ([62.136.136.144] helo=f3a3a2) by cmailm3.svr.pol.co.uk with smtp (Exim 3.35 #1) id 18a3zO-0005En-00 for rsgb_lf_group@blacksheep.org; Sun, 19 Jan 2003 01:11:06 +0000 Message-ID: <000201c2bf59$01fc4620$ea00a8c0@f3a3a2> From: "Laurie Mayhead" To: rsgb_lf_group@blacksheep.org References: <000901c2bf26$d4e90a60$597e6051@oemcomputer> <005001c2bf28$561355e0$1700a8c0@home> <008701c2bf52$73ba2e00$0500a8c0@charter.net> Date: Sun, 19 Jan 2003 01:16:29 -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: Re: Re: T/A tonight Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.5 required=6.0tests=REFERENCES,SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false ----- Original Message ----- From: "John Andrews" To: Sent: Sunday, January 19, 2003 12:33 AM Subject: LF: Re: Re: T/A tonight > Dave - your DFCW is coming in well right now. > > Good signal from what I think is Laurie on 921.3. > > John A. > > Yes I confirm 921.3, nothing yet on Dex's capture. going to DFCW now. Cheers Laurie. From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 30019 invoked from network); 19 Jan 2003 00:57:08 -0000 Received: from marstons.services.quay.plus.net (212.159.14.223) by mailstore with SMTP; 19 Jan 2003 00:57:08 -0000 Received: (qmail 5122 invoked by uid 10001); 19 Jan 2003 00:57:07 -0000 Received: from post.thorcom.com (193.82.116.70) by marstons.services.quay.plus.net with SMTP; 19 Jan 2003 00:57:06 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18a3iF-0007JA-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 19 Jan 2003 00:53:23 +0000 Received: from [209.225.8.25] (helo=dc-mx15.cluster1.charter.net) by post.thorcom.com with esmtp (Exim 4.12) id 18a3iF-0007J0-00 for rsgb_lf_group@blacksheep.org; Sun, 19 Jan 2003 00:53:23 +0000 Received: from [66.189.48.230] (HELO johncellarnew) by dc-mx15.cluster1.charter.net (CommuniGate Pro SMTP 3.5.9) with SMTP id 24738145 for rsgb_lf_group@blacksheep.org; Sat, 18 Jan 2003 19:52:52 -0500 Message-ID: <009801c2bf55$263db9a0$0500a8c0@charter.net> From: "John Andrews" To: rsgb_lf_group@blacksheep.org References: <002301c2bf4e$9dd91880$1700a8c0@home> Date: Sun, 19 Jan 2003 00:53:15 -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: tests Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.5 required=6.0tests=REFERENCES,SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Got a complete YXM. Both Dave and Laurie are doing very well right now. No sign of other sigs, though. John Andrews From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 20894 invoked from network); 19 Jan 2003 00:56:34 -0000 Received: from netmail01.services.quay.plus.net (212.159.14.219) by mailstore with SMTP; 19 Jan 2003 00:56:34 -0000 Received: (qmail 20984 invoked from network); 19 Jan 2003 00:55:49 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail01.services.quay.plus.net with SMTP; 19 Jan 2003 00:55:49 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18a3ge-0007Ia-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 19 Jan 2003 00:51:44 +0000 Received: from [194.73.73.116] (helo=lutetium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.12) id 18a3ge-0007IR-00 for rsgb_lf_group@blacksheep.org; Sun, 19 Jan 2003 00:51:44 +0000 Received: from host217-35-12-143.in-addr.btopenworld.com ([217.35.12.143] helo=dellboy) by lutetium.btinternet.com with smtp (Exim 3.22 #16) id 18a3ge-0003TB-00 for rsgb_lf_group@blacksheep.org; Sun, 19 Jan 2003 00:51:44 +0000 Message-ID: <002c01c2bf55$1202e460$1700a8c0@home> From: "Dave Pick" To: rsgb_lf_group@blacksheep.org References: <000901c2bf26$d4e90a60$597e6051@oemcomputer> <005001c2bf28$561355e0$1700a8c0@home> <008701c2bf52$73ba2e00$0500a8c0@charter.net> Date: Sun, 19 Jan 2003 00:52:41 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4920.2300 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: Re: Re: T/A tonight Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.5 required=6.0tests=REFERENCES,SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false John. Yes I can see one complete "YXM" on the latest screen and Laurie is very strong. Interesting that our two signals came out of the noise at different times earlier. I am about 120 miles north and about 50 west of Laurie. Dave 'YXM. ----- Original Message ----- From: "John Andrews" To: Sent: Sunday, January 19, 2003 12:33 AM Subject: LF: Re: Re: T/A tonight > Dave - your DFCW is coming in well right now. > > Good signal from what I think is Laurie on 921.3. > > John A. > > > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 13984 invoked from network); 19 Jan 2003 00:35:38 -0000 Received: from netmail02.services.quay.plus.net (212.159.14.221) by mailstore with SMTP; 19 Jan 2003 00:35:38 -0000 Received: (qmail 13306 invoked from network); 19 Jan 2003 00:35:01 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail02.services.quay.plus.net with SMTP; 19 Jan 2003 00:35:01 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18a3PZ-0007AA-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 19 Jan 2003 00:34:05 +0000 Received: from [209.225.8.13] (helo=dc-mx03.cluster1.charter.net) by post.thorcom.com with esmtp (Exim 4.12) id 18a3PY-0007A1-00 for rsgb_lf_group@blacksheep.org; Sun, 19 Jan 2003 00:34:04 +0000 Received: from [66.189.48.230] (HELO johncellarnew) by dc-mx03.cluster1.charter.net (CommuniGate Pro SMTP 3.5.9) with SMTP id 72073529 for rsgb_lf_group@blacksheep.org; Sat, 18 Jan 2003 19:33:33 -0500 Message-ID: <008701c2bf52$73ba2e00$0500a8c0@charter.net> From: "John Andrews" To: rsgb_lf_group@blacksheep.org References: <000901c2bf26$d4e90a60$597e6051@oemcomputer> <005001c2bf28$561355e0$1700a8c0@home> Date: Sun, 19 Jan 2003 00:33:56 -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: T/A tonight Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.5 required=6.0tests=REFERENCES,SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Dave - your DFCW is coming in well right now. Good signal from what I think is Laurie on 921.3. John A. From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 16901 invoked from network); 19 Jan 2003 00:04:44 -0000 Received: from murphys.services.quay.plus.net (212.159.14.225) by mailstore with SMTP; 19 Jan 2003 00:04:44 -0000 Received: (qmail 1266 invoked from network); 19 Jan 2003 00:06:07 -0000 Received: from post.thorcom.com (193.82.116.70) by murphys.services.quay.plus.net with SMTP; 19 Jan 2003 00:06:07 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18a2xy-000719-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 19 Jan 2003 00:05:34 +0000 Received: from [194.73.73.116] (helo=lutetium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.12) id 18a2xx-000710-00 for rsgb_lf_group@blacksheep.org; Sun, 19 Jan 2003 00:05:33 +0000 Received: from host217-35-12-143.in-addr.btopenworld.com ([217.35.12.143] helo=dellboy) by lutetium.btinternet.com with smtp (Exim 3.22 #16) id 18a2xx-0000gJ-00 for rsgb_lf_group@blacksheep.org; Sun, 19 Jan 2003 00:05:33 +0000 Message-ID: <002301c2bf4e$9dd91880$1700a8c0@home> From: "Dave Pick" To: "LF Group" Date: Sun, 19 Jan 2003 00:06:29 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4920.2300 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: tests Content-Type: text/html; charset=windows-1252 X-Spam-Status: No, hits=1.3 required=6.0tests=HTML_50_70,SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 X-Spam-Level: * 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Content-transfer-encoding: 8bit

Just a hint of signals on John's latest scan.

Dave 'YXM

From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 22214 invoked from network); 19 Jan 2003 00:04:33 -0000 Received: from murphys.services.quay.plus.net (212.159.14.225) by mailstore with SMTP; 19 Jan 2003 00:04:33 -0000 Received: (qmail 396 invoked from network); 19 Jan 2003 00:04:25 -0000 Received: from post.thorcom.com (193.82.116.70) by murphys.services.quay.plus.net with SMTP; 19 Jan 2003 00:04:25 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18a2vl-0006yG-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 19 Jan 2003 00:03:17 +0000 Received: from [209.225.8.25] (helo=dc-mx15.cluster1.charter.net) by post.thorcom.com with esmtp (Exim 4.12) id 18a2vl-0006y7-00 for rsgb_lf_group@blacksheep.org; Sun, 19 Jan 2003 00:03:17 +0000 Received: from [66.189.48.230] (HELO johncellarnew) by dc-mx15.cluster1.charter.net (CommuniGate Pro SMTP 3.5.9) with SMTP id 24722814 for rsgb_lf_group@blacksheep.org; Sat, 18 Jan 2003 19:02:46 -0500 Message-ID: <007201c2bf4e$267bd840$0500a8c0@charter.net> From: "John Andrews" To: rsgb_lf_group@blacksheep.org References: <74S2VLF93VUXSTQGSM09USTSNL3YJF.3e29837a@Charlie_Drake> <004201c2bf46$e6e24680$0de486d4@erica> Date: Sun, 19 Jan 2003 00:03:08 -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: LF T/A Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=1.0 required=6.0tests=SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 X-Spam-Level: * 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Is anyone transmitting on 135921.3? John Andrews From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 16430 invoked from network); 18 Jan 2003 23:10:19 -0000 Received: from netmail02.services.quay.plus.net (212.159.14.221) by mailstore with SMTP; 18 Jan 2003 23:10:19 -0000 Received: (qmail 21015 invoked from network); 18 Jan 2003 23:09:48 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail02.services.quay.plus.net with SMTP; 18 Jan 2003 23:09:48 -0000 X-Priority: 3 X-MSMail-Priority: Normal X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18a25I-0006is-00 for rsgb_lf_group-outgoing@blacksheep.org; Sat, 18 Jan 2003 23:09:04 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from [166.82.1.68] (helo=host3.ctc.net) by post.thorcom.com with esmtp (Exim 4.12) id 18a25H-0006ij-00 for rsgb_lf_group@blacksheep.org; Sat, 18 Jan 2003 23:09:04 +0000 Received: from att.net ([166.82.181.250]) by host3.ctc.net (InterMail vK.4.03.05.03 201-232-132-103 license 2d687b22c655f23831a2faa19b737467) with ESMTP id <20030118230951.ASX15467.host3@att.net> for ; Sat, 18 Jan 2003 18:09:52 -0500 Message-ID: <3E29DE95.B40BC85@att.net> Date: Sat, 18 Jan 2003 23:09:09 +0000 From: "Dexter McIntyre W4DEX" X-Mailer: Mozilla 4.77 [en] (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <000901c2bf26$d4e90a60$597e6051@oemcomputer> <002501c2bf2c$88cd0900$0500a8c0@charter.net> Subject: Re: LF: Re: T/A tonight Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=-0.8 required=6.0tests=QUOTED_EMAIL_TEXT,REFERENCES,SPAM_PHRASE_00_01, USER_AGENT_MOZILLA_XM,X_ACCEPT_LANGversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Noise here in NC is about as low as it gets. It isn't often I can run Argo in manual gain mode. This probably won't last long after dark. Screen captures will be available at: http://www.w4dex.com/argo/135khz.jpg Dex John Andrews wrote: > > I am running the "capture machine" again tonight. Shots will appear every 15 > minutes at: > http://webpages.charter.net/w1tag/136-1.jpg > > The window is from 135920.5 to 135923.5. Avoid 921.05 and 920.92 because of > Loran lines. The screen is set for 60 seconds, normal speed. > > Dave: I had a strong line on 921.8 all day yesterday, ending sometime during > the early morning over here. I don't see it right now, but will advise if it > reappears. > > John Andrews, W1TAG From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 15479 invoked from network); 18 Jan 2003 23:09:49 -0000 Received: from warrior.services.quay.plus.net (212.159.14.227) by mailstore with SMTP; 18 Jan 2003 23:09:49 -0000 Received: (qmail 14166 invoked from network); 18 Jan 2003 23:09:48 -0000 Received: from post.thorcom.com (193.82.116.70) by warrior.services.quay.plus.net with SMTP; 18 Jan 2003 23:09:48 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18a255-0006if-00 for rsgb_lf_group-outgoing@blacksheep.org; Sat, 18 Jan 2003 23:08:51 +0000 Received: from [212.135.6.14] (helo=smarthost4.mail.uk.easynet.net) by post.thorcom.com with esmtp (Exim 4.12) id 18a255-0006iW-00 for rsgb_lf_group@blacksheep.org; Sat, 18 Jan 2003 23:08:51 +0000 Received: from tnt-21-13.easynet.co.uk ([212.134.228.13] helo=erica) by smarthost4.mail.uk.easynet.net with smtp (Exim 4.10) id 18a252-0009xA-00 for rsgb_lf_group@blacksheep.org; Sat, 18 Jan 2003 23:08:49 +0000 Message-ID: <004201c2bf46$e6e24680$0de486d4@erica> From: "g3ldo" To: rsgb_lf_group@blacksheep.org References: <74S2VLF93VUXSTQGSM09USTSNL3YJF.3e29837a@Charlie_Drake> Date: Sat, 18 Jan 2003 23:08:04 -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: LF T/A Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=-0.1 required=6.0tests=QUOTED_EMAIL_TEXT,SPAM_PHRASE_01_02,USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Hi Steve 13/1/03 > Having just returned from a week long business trip to find that > w3eee.com was still working(!) I'm also gratified to see that it is > of use . . . This is really a very useful site and I have contributed somewhat to w3eee.com hits. I guess this is an extension of the service that Alan provided when he monitored the station in Newfoundland but gives us a good idea of the propagation from a North American perspective. The ability of the display to monitor adjacent channels for electronic environment (squirglies) so that we get a fuller picture is very well thought out. The fact that it is in near real time is a real bonus and enables us to keep our powder dry until we have something to shoot at. >.... also amazed by the great propagation it captured last night. Yes, this seems nearly as good as the 'Scorcher' early this month. Acting on the information from KL1X in his e-mail of the 13/1/03, and from the strength of DFC39 on the w3eee site, I transmitted from 0600 until 0900 on 137769kHz. I will have to wait until 3rd Feb to know if this was successful. (The 'Scorcher' at w3eee coincided with large strength EU B/C station signal strengths in Alaska). I don't think I will be transmitting tonight. Gale force winds and driving rain make putting up the antenna just a tad too exciting! (new pictures of G3LDO LF station and antenna on web site, see below) > > > As Alan has noted, some traces show suspicious signs of the > measuring system clipping, or 'topping out'; this can be seen at > about the -8dB level on the !' trace, and at 0700z+ on > the present trace. Yes, the 'top' sensitivity are probably more important than the bottom when trying to correlate DFC39 or other commercial stations with amateur stations in propagation studies. Regards, Peter, G3LDO e-mail Web From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 11067 invoked from network); 18 Jan 2003 22:15:50 -0000 Received: from warrior.services.quay.plus.net (212.159.14.227) by mailstore with SMTP; 18 Jan 2003 22:15:50 -0000 Received: (qmail 10004 invoked from network); 18 Jan 2003 22:15:38 -0000 Received: from post.thorcom.com (193.82.116.70) by warrior.services.quay.plus.net with SMTP; 18 Jan 2003 22:15:37 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18a1EP-0006VP-00 for rsgb_lf_group-outgoing@blacksheep.org; Sat, 18 Jan 2003 22:14:25 +0000 Received: from [213.4.129.135] (helo=tnetmx2.mail.isp) by post.thorcom.com with esmtp (Exim 4.12) id 18a1EL-0006VG-00 for rsgb_lf_group@blacksheep.org; Sat, 18 Jan 2003 22:14:21 +0000 Received: from BI57429bankinter ([213.98.209.55]) by tnetmx2.mail.isp (terra.es) with ESMTP id H8XKFW01.94M for ; Sat, 18 Jan 2003 23:14:20 +0100 Message-ID: <005701c2bf3e$ea9b0260$bbcb99c1@BI57429bankinter> From: =?iso-8859-1?Q?Jos=E9_Manuel?= To: rsgb_lf_group@blacksheep.org References: <001d01c2bee7$4baf55e0$96e9fc3e@l8p8y6> Date: Sat, 18 Jan 2003 23:14:04 +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: Re: EA1PX Content-Type: text/html; charset=windows-1252 X-Spam-Status: No, hits=0.7 required=6.0tests=MAILTO_LINK,REFERENCES,SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Content-transfer-encoding: 8bit

Thanks for nice report Mal.

73 de José, EA1PX

----- Original Message -----

From: hamilton mal

To: rsgb_lf_group@blacksheep.org

Sent: Saturday, January 18, 2003 12:15 PM

Subject: LF: EA1PX

I saw your signal a couple of nights ago at OOO copy. You were calling cq around 137.7 khz. F6BWO was also on at the same time with a very strong signal.

73 de Mal/G3KEV IO94SH

From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 29474 invoked from network); 18 Jan 2003 20:04:45 -0000 Received: from marstons.services.quay.plus.net (212.159.14.223) by mailstore with SMTP; 18 Jan 2003 20:04:45 -0000 Received: (qmail 18118 invoked by uid 10001); 18 Jan 2003 20:04:08 -0000 Received: from post.thorcom.com (193.82.116.70) by marstons.services.quay.plus.net with SMTP; 18 Jan 2003 20:04:08 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18ZzAv-000675-00 for rsgb_lf_group-outgoing@blacksheep.org; Sat, 18 Jan 2003 20:02:41 +0000 Received: from [209.225.8.26] (helo=mx16.cluster1.charter.net) by post.thorcom.com with esmtp (Exim 4.12) id 18ZzAu-00066w-00 for rsgb_lf_group@blacksheep.org; Sat, 18 Jan 2003 20:02:40 +0000 Received: from [66.189.48.230] (HELO johncellarnew) by mx16.cluster1.charter.net (CommuniGate Pro SMTP 3.5.9) with SMTP id 22938184 for rsgb_lf_group@blacksheep.org; Sat, 18 Jan 2003 15:02:09 -0500 Message-ID: <002501c2bf2c$88cd0900$0500a8c0@charter.net> From: "John Andrews" To: rsgb_lf_group@blacksheep.org References: <000901c2bf26$d4e90a60$597e6051@oemcomputer> Date: Sat, 18 Jan 2003 20:02:31 -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 tonight Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.5 required=6.0tests=REFERENCES,SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false I am running the "capture machine" again tonight. Shots will appear every 15 minutes at: http://webpages.charter.net/w1tag/136-1.jpg The window is from 135920.5 to 135923.5. Avoid 921.05 and 920.92 because of Loran lines. The screen is set for 60 seconds, normal speed. Dave: I had a strong line on 921.8 all day yesterday, ending sometime during the early morning over here. I don't see it right now, but will advise if it reappears. John Andrews, W1TAG From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 3694 invoked from network); 18 Jan 2003 19:36:11 -0000 Received: from murphys.services.quay.plus.net (212.159.14.225) by mailstore with SMTP; 18 Jan 2003 19:36:11 -0000 Received: (qmail 12691 invoked from network); 18 Jan 2003 19:36:09 -0000 Received: from post.thorcom.com (193.82.116.70) by murphys.services.quay.plus.net with SMTP; 18 Jan 2003 19:36:09 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18Zyko-000606-00 for rsgb_lf_group-outgoing@blacksheep.org; Sat, 18 Jan 2003 19:35:42 +0000 Received: from [62.253.162.46] (helo=mta06-svc.ntlworld.com) by post.thorcom.com with esmtp (Exim 4.12) id 18Zyko-0005zx-00 for rsgb_lf_group@blacksheep.org; Sat, 18 Jan 2003 19:35:42 +0000 Received: from oemcomputer ([81.96.126.89]) by mta06-svc.ntlworld.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with SMTP id <20030118193537.VKXJ20174.mta06-svc.ntlworld.com@oemcomputer> for ; Sat, 18 Jan 2003 19:35:37 +0000 Message-ID: <001201c2bf28$f5692160$597e6051@oemcomputer> From: "Mike Dennison" To: rsgb_lf_group@blacksheep.org References: <000901c2bf26$d4e90a60$597e6051@oemcomputer> <005001c2bf28$561355e0$1700a8c0@home> Date: Sat, 18 Jan 2003 19:36:55 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: Re: T/A tonight Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=-0.3 required=6.0tests=QUOTED_EMAIL_TEXT,REFERENCES,SPAM_PHRASE_00_01, USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false > If anyone is prepared to post grabs I'll join in too, 60sec DFCW on > 135.9228/9 until I fall asleep, probably about 0100. > Dave G3YXM. Mine will be QRSS60, too. My mistake. Mike, G3XDV http://www.lf.thersgb.net ==================== From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 28660 invoked from network); 18 Jan 2003 19:33:05 -0000 Received: from marstons.services.quay.plus.net (212.159.14.223) by mailstore with SMTP; 18 Jan 2003 19:33:05 -0000 Received: (qmail 5470 invoked by uid 10001); 18 Jan 2003 19:32:21 -0000 Received: from post.thorcom.com (193.82.116.70) by marstons.services.quay.plus.net with SMTP; 18 Jan 2003 19:32:21 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18Zygq-0005ub-00 for rsgb_lf_group-outgoing@blacksheep.org; Sat, 18 Jan 2003 19:31:36 +0000 Received: from [194.73.73.147] (helo=einsteinium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.12) id 18Zygq-0005uS-00 for rsgb_lf_group@blacksheep.org; Sat, 18 Jan 2003 19:31:36 +0000 Received: from host217-35-12-143.in-addr.btopenworld.com ([217.35.12.143] helo=dellboy) by einsteinium.btinternet.com with smtp (Exim 3.22 #16) id 18Zygp-0004a9-00 for rsgb_lf_group@blacksheep.org; Sat, 18 Jan 2003 19:31:35 +0000 Message-ID: <005001c2bf28$561355e0$1700a8c0@home> From: "Dave Pick" To: rsgb_lf_group@blacksheep.org References: <000901c2bf26$d4e90a60$597e6051@oemcomputer> Date: Sat, 18 Jan 2003 19:32:27 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4920.2300 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: T/A tonight Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=-0.3 required=6.0tests=QUOTED_EMAIL_TEXT,REFERENCES,SPAM_PHRASE_00_01, USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false If anyone is prepared to post grabs I'll join in too, 60sec DFCW on 135.9228/9 until I fall asleep, probably about 0100. Dave G3YXM. ----- Original Message ----- From: "Mike Dennison" To: Sent: Saturday, January 18, 2003 7:21 PM Subject: LF: T/A tonight > I missed last night's message, but would be happy to transmit tonight > (Sat/Sun) using QRSS120 on 135.92175kHz for as long as I can. > > Mike, G3XDV > http://www.lf.thersgb.net > ==================== > > > > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 24754 invoked from network); 18 Jan 2003 19:22:15 -0000 Received: from netmail02.services.quay.plus.net (212.159.14.221) by mailstore with SMTP; 18 Jan 2003 19:22:15 -0000 Received: (qmail 22049 invoked from network); 18 Jan 2003 19:21:45 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail02.services.quay.plus.net with SMTP; 18 Jan 2003 19:21:45 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18ZyW4-0005qE-00 for rsgb_lf_group-outgoing@blacksheep.org; Sat, 18 Jan 2003 19:20:28 +0000 Received: from [62.253.162.47] (helo=mta07-svc.ntlworld.com) by post.thorcom.com with esmtp (Exim 4.12) id 18ZyW4-0005q5-00 for rsgb_lf_group@blacksheep.org; Sat, 18 Jan 2003 19:20:28 +0000 Received: from oemcomputer ([81.96.126.89]) by mta07-svc.ntlworld.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with SMTP id <20030118192027.RZNN5233.mta07-svc.ntlworld.com@oemcomputer> for ; Sat, 18 Jan 2003 19:20:27 +0000 Message-ID: <000901c2bf26$d4e90a60$597e6051@oemcomputer> From: "Mike Dennison" To: rsgb_lf_group@blacksheep.org Date: Sat, 18 Jan 2003 19:21:39 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: T/A tonight Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=1.0 required=6.0tests=SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 X-Spam-Level: * 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false I missed last night's message, but would be happy to transmit tonight (Sat/Sun) using QRSS120 on 135.92175kHz for as long as I can. Mike, G3XDV http://www.lf.thersgb.net ==================== From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 5354 invoked from network); 18 Jan 2003 17:00:46 -0000 Received: from marstons.services.quay.plus.net (212.159.14.223) by mailstore with SMTP; 18 Jan 2003 17:00:46 -0000 Received: (qmail 11231 invoked by uid 10001); 18 Jan 2003 17:00:34 -0000 Received: from post.thorcom.com (193.82.116.70) by marstons.services.quay.plus.net with SMTP; 18 Jan 2003 17:00:34 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18ZwJp-0005R2-00 for rsgb_lf_group-outgoing@blacksheep.org; Sat, 18 Jan 2003 16:59:41 +0000 Received: from [194.73.73.111] (helo=gadolinium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.12) id 18ZwJp-0005Qt-00 for rsgb_lf_group@blacksheep.org; Sat, 18 Jan 2003 16:59:41 +0000 Received: from host217-35-12-143.in-addr.btopenworld.com ([217.35.12.143] helo=dellboy) by gadolinium.btinternet.com with smtp (Exim 3.22 #16) id 18ZwJp-0004gU-00 for rsgb_lf_group@blacksheep.org; Sat, 18 Jan 2003 16:59:41 +0000 Message-ID: <002f01c2bf13$1efa5000$1700a8c0@home> From: "Dave Pick" To: rsgb_lf_group@blacksheep.org References: <74S2VLF93VUXSTQGSM09USTSNL3YJF.3e29837a@Charlie_Drake> Date: Sat, 18 Jan 2003 17:00:28 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4920.2300 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: Re: LF: LF T/A Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=-0.1 required=6.0tests=QUOTED_EMAIL_TEXT,SPAM_PHRASE_01_02,USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Steve. Yes it's excellent. laurie and I did try some T/A tests last night but were diappointed by the results around 0000utc and went off. It looks from your latest graph that we should have persevered! The sig/noise at 0600 looks very good. You need to couple that s/n figure to a big bell in our bedrooms! Cheers. Dave Pick G3YXM. ----- Original Message ----- From: "Steve Dove" To: Sent: Saturday, January 18, 2003 4:40 PM Subject: Re: LF: LF T/A > Greetings, fellow static-heads, > > Having just returned from a week long business trip to find that > w3eee.com was still working(!) I'm also gratified to see that it is > of use . . . also amazed by the great propagation it captured > last night. > > (1) Daytime noises > > As Peter queried and Alan correctly answered, the daytime > noises evident are switch-mode 'squirglies' and the odd electric > drill from construction down the road. When I'm here (w3eee.com > is in my downstairs office) I'm able to 'police' the house for known > grotties that have otherwise not been fixed, 'retired' or 'broken'. > These are the ones that require 'social engineering' to keep under > control. There is a bad one from an adjacent property (300' away) > about which nothing much can be done. > > That said, it is fairly clear if the 'squirglies' are causing false readings; > that is the purpose of the 'control' traces from adjacent frequencies. > And since the 'squirglies' really only affect measurements when no-one > in their right mind is going to be attempting transatlantic QSOs, for > the immediate purpose they really don't matter; obviously for the > science aspect, they have to go. This is going to involve a new > antenna, further away from houses - since we're still armpit deep > in snow, and the weather-man's favourite utterance of late is > "single digits!" (of degrees Fahrenheit) this isn't going to happen > any time soon . . . > > Incidentally, the signal strength 'bloom' centered around 1400z > on today's graph is real, and not a 'squirgly' - note that the > noises are well below the DCF trace. > > (2) Data clipping > > As Alan has noted, some traces show suspicious signs of the > measuring system clipping, or 'topping out'; this can be seen at > about the -8dB level on the 'Scorcher!' trace, and at 0700z+ on > the present trace. The actual data figures behind these traces > still show signs of wiggle, so, I'm really not sure. However, since > there is 'plenty of room' at the low-level end of the graph, at the > next reasonable opportunity (i.e. when the 'puter falls over next) > I might spend the time to recalibrate it down 10dB, as per Alan's > suggestion. > > Don't worry. I'll let you know if it happens, just so that people > won't assume the band's over for the season! > > Cheers, > > Steve > > > > > > > > From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 25013 invoked from network); 18 Jan 2003 16:46:13 -0000 Received: from netmail02.services.quay.plus.net (212.159.14.221) by mailstore with SMTP; 18 Jan 2003 16:46:13 -0000 Received: (qmail 26404 invoked from network); 18 Jan 2003 16:46:02 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail02.services.quay.plus.net with SMTP; 18 Jan 2003 16:46:02 -0000 X-MSMail-Priority: Normal X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18Zw2g-0005LK-00 for rsgb_lf_group-outgoing@blacksheep.org; Sat, 18 Jan 2003 16:41:58 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from [24.153.64.2] (helo=smtp.comcast.net) by post.thorcom.com with esmtp (Exim 4.12) id 18Zw2g-0005LB-00 for rsgb_lf_group@blacksheep.org; Sat, 18 Jan 2003 16:41:58 +0000 Received: from Charlie_Drake (pcp01445904pcs.lebnon01.pa.comcast.net [68.83.65.211]) by mtaout01.icomcast.net (iPlanet Messaging Server 5.2 HotFix 1.07 (built Nov 25 2002)) with SMTP id <0H8X0057I4ZEUB@mtaout01.icomcast.net> for rsgb_lf_group@blacksheep.org; Sat, 18 Jan 2003 11:40:27 -0500 (EST) Date: Sat, 18 Jan 2003 11:40:26 -0500 From: "Steve Dove" In-reply-to: <000401c2bebe$12363000$d41686d4@erica> To: rsgb_lf_group@blacksheep.org Message-ID: <74S2VLF93VUXSTQGSM09USTSNL3YJF.3e29837a@Charlie_Drake> Organization: d s p MIME-Version: 1.0 X-Mailer: Opera 6.04 build 1135 X-Priority: 3 Subject: Re: LF: LF T/A Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=-0.2 required=6.0tests=INVALID_MSGID,IN_REP_TO,NOSPAM_INC,SPAM_PHRASE_00_01version=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Greetings, fellow static-heads, Having just returned from a week long business trip to find that w3eee.com was still working(!) I'm also gratified to see that it is of use . . . also amazed by the great propagation it captured last night. (1) Daytime noises As Peter queried and Alan correctly answered, the daytime noises evident are switch-mode 'squirglies' and the odd electric drill from construction down the road. When I'm here (w3eee.com is in my downstairs office) I'm able to 'police' the house for known grotties that have otherwise not been fixed, 'retired' or 'broken'. These are the ones that require 'social engineering' to keep under control. There is a bad one from an adjacent property (300' away) about which nothing much can be done. That said, it is fairly clear if the 'squirglies' are causing false readings; that is the purpose of the 'control' traces from adjacent frequencies. And since the 'squirglies' really only affect measurements when no-one in their right mind is going to be attempting transatlantic QSOs, for the immediate purpose they really don't matter; obviously for the science aspect, they have to go. This is going to involve a new antenna, further away from houses - since we're still armpit deep in snow, and the weather-man's favourite utterance of late is "single digits!" (of degrees Fahrenheit) this isn't going to happen any time soon . . . Incidentally, the signal strength 'bloom' centered around 1400z on today's graph is real, and not a 'squirgly' - note that the noises are well below the DCF trace. (2) Data clipping As Alan has noted, some traces show suspicious signs of the measuring system clipping, or 'topping out'; this can be seen at about the -8dB level on the 'Scorcher!' trace, and at 0700z+ on the present trace. The actual data figures behind these traces still show signs of wiggle, so, I'm really not sure. However, since there is 'plenty of room' at the low-level end of the graph, at the next reasonable opportunity (i.e. when the 'puter falls over next) I might spend the time to recalibrate it down 10dB, as per Alan's suggestion. Don't worry. I'll let you know if it happens, just so that people won't assume the band's over for the season! Cheers, Steve From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 12751 invoked from network); 18 Jan 2003 12:44:20 -0000 Received: from marstons.services.quay.plus.net (212.159.14.223) by mailstore with SMTP; 18 Jan 2003 12:44:20 -0000 Received: (qmail 7293 invoked by uid 10001); 18 Jan 2003 12:44:09 -0000 Received: from post.thorcom.com (193.82.116.70) by marstons.services.quay.plus.net with SMTP; 18 Jan 2003 12:44:08 -0000 X-Priority: 3 X-MSMail-Priority: Normal X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18ZsJs-0004kx-00 for rsgb_lf_group-outgoing@blacksheep.org; Sat, 18 Jan 2003 12:43:28 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from [147.197.200.9] (helo=hestia.herts.ac.uk) by post.thorcom.com with esmtp (Exim 4.12) id 18ZsJr-0004ko-00 for rsgb_lf_group@blacksheep.org; Sat, 18 Jan 2003 12:43:27 +0000 Received: from gemini ([147.197.200.44] helo=gemini.herts.ac.uk) by hestia.herts.ac.uk with esmtp (Exim 3.22 #1) id 18ZsJh-0001eQ-00 for rsgb_lf_group@blacksheep.org; Sat, 18 Jan 2003 12:43:17 +0000 Received: from [147.197.232.252] (helo=rsch-15.herts.ac.uk) by gemini.herts.ac.uk with esmtp (Exim 3.33 #1) id 18ZsJW-0000pg-00 for rsgb_lf_group@blacksheep.org; Sat, 18 Jan 2003 12:43:06 +0000 Message-ID: <5.1.0.14.0.20030117183432.00af50f0@gemini.herts.ac.uk> X-Sender: mj9ar@gemini.herts.ac.uk X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Sat, 18 Jan 2003 12:42:22 +0000 To: rsgb_lf_group@blacksheep.org From: "James Moritz" In-reply-to: <72.28eb294e.2b5992b4@aol.com> MIME-Version: 1.0 X-MailScanner: No Virus detected Subject: LF: Re: Notch for DCF39/Spectrograms/Luxembourg effect Content-Type: multipart/mixed; boundary="------------080400010108040300010502" X-Spam-Status: No, hits=-1.6 required=6.0tests=EMAIL_ATTRIBUTION,IN_REP_TO,SPAM_PHRASE_00_01version=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false This is a multi-part message in MIME format. --------------080400010108040300010502 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 8bit At 12:09 17/01/2003 -0500, you wrote: ><< This is the wrong way to achieve high impedance (and good IMD), > it is no need to keep the "source current low" {etc} >> > >I do not see anything in the Web page that suggests keeping the source >current low. It only says "reasonable amount," which I took to mean "be sure >to use enough" to keep IMD low. Dear LF Group, The output impedance of a follower is roughly the inverse of it's transconductance, ie. 1/gm. A J310 JFET has a gm of about 10 - 20 mS, so the output impedance is roughly 50 - 100 ohms. To get low distortion, and gain close to unity with such a follower requires that the load it is driving should be much greater than the output impedance of the follower. So a J310 source follower would be fine if driving several hundred ohms or greater, but not for a 50 or 75 ohms system. To get around this, one could use a special FET like the CP640 device used in the AMRAD active antenna circuit, with much higher gm. A small power MOSFET would give a low output impedance, but rather high input capacitance. Bipolar transistors have much higher gm (roughly Ic/25mV), but would have relatively low input impedance, in the kilohm range, and be relatively noisy with a high source impedance. Various high speed op-amps and IC buffers can be used, but they tend to be quite noisy. A cheap and easy alternative is to use a compound follower, with JFET and bipolar followers cascaded. I tried the one shown in the attachment - Zin is basically 500k in parallel with the FET capacitance, the gain with 50ohm load is about 0.95. The noise at 136kHz with the input shorted was about 0.05uV in 400Hz BW. About 1V RMS can be applied to the input before there is much distortion whilst driving 50ohms, so it ought to be OK with most antennas, and is probably better than most receivers. The FET was a J310, but other devices with Idss > about 8mA should be OK. A lower gm device with lower Idss could be used if the 100R resistor were increased in value, but would be noisier. The output BJT used was a 2N3053, but can be a wide range of small power transistors with Hfe > 50 when biased to 30mA or so and fT in the 10s of MHz - eg. BD131, BFY50, ZTX650 etc. Zout is a few ohms - If driving a capacitive load, a resistor in series with the output of 10 - 20 ohms will prevent oscillation. Extra decoupling will be required if the 12V supply is noisy. Using spectrogram software to monitor the band for signals works very well - it allows you to see CW signals that are inaudible, which you can then try to "zoom in" using a narrow filter. Although you can't copy the morse from the screen display, you can detect the presence of signals that are too weak to hear even in the narrowest filter, whilst monitoring the whole band segment at once. Some of the spectrogram programs have DSP audio filters built in, too. The broadcast station noises M0WYE is hearing may well be "Luxembourg effect", where cross-modulation of the DCF39 carrier by the BC signals occurs in the ionosphere, and is often quite strong at my QTH. Usually I can here the audio of at least two stations at once. 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QUBFP/lf+435tPlf+435tA4p+xXvXQ/GqApHqbvh/MPe3u1/xyl9Hdg7T/WvHs37v3VXEBER AREQEREBERAREQEREBERAREQEREBERAREQEREBERAREQEREBERAREQEREBERAREQEREBERAR EQEREBERAREQEREBERAREQSvihqWwyVGladl7trp6LVFI+qjbVMLoGsLw8vGctDT0JOMetUC 26lsN5qHU9rvdtrp2sL3R0tUyVwbkDJDSTjJAz9oU74icJrLc6OKstGn55KqHEcdBaX0lCx2 Tlz5HvjycAAev1YAy4rWaK4d2HQdPMy1xyTTyvcXVdU1jpw0hvgD2tadmWA4+nJQaxERAREQ EREBERAREQEREBERAREQEREBERAREQEREBERAREQEREBERAREQEREBERAREQEREBERAREQER EBERAREQEREBERAREQEREBERAREQEREBERAREQEREBERAREQEREBERB//9k= --------------080400010108040300010502-- From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 28960 invoked from network); 18 Jan 2003 11:48:40 -0000 Received: from netmail02.services.quay.plus.net (212.159.14.221) by mailstore with SMTP; 18 Jan 2003 11:48:40 -0000 Received: (qmail 28557 invoked from network); 18 Jan 2003 11:47:59 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail02.services.quay.plus.net with SMTP; 18 Jan 2003 11:47:59 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18ZrRP-0004VX-00 for rsgb_lf_group-outgoing@blacksheep.org; Sat, 18 Jan 2003 11:47:11 +0000 Received: from [62.253.164.44] (helo=mta4-svc.business.ntl.com) by post.thorcom.com with esmtp (Exim 4.12) id 18ZrRP-0004VO-00 for rsgb_lf_group@blacksheep.org; Sat, 18 Jan 2003 11:47:11 +0000 Received: from l8p8y6 ([62.252.233.150]) by mta4-svc.business.ntl.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with SMTP id <20030118114709.ODSM29609.mta4-svc.business.ntl.com@l8p8y6> for ; Sat, 18 Jan 2003 11:47:09 +0000 Message-ID: <001e01c2bee7$51a3b040$96e9fc3e@l8p8y6> From: "hamilton mal" To: rsgb_lf_group@blacksheep.org Date: Sat, 18 Jan 2003 11:46:19 -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: Filters Content-Type: text/html; charset=windows-1252 X-Spam-Status: No, hits=1.0 required=6.0tests=SPAM_PHRASE_00_01,SUPERLONG_LINE,USER_AGENT_OEversion=2.43 X-Spam-Level: * 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Content-transfer-encoding: 8bit

I have been watching the discussion about Filters on here with interest. With DCF39 you have two modes to cope with, the carrier and the data bursts. A notch filter does not handle this condition very well, because of the sudden bandwidth extension when the data burst occurs. If you cater for this then you also desense/attenuate adjacent frequencies of interest around 137.7 khz a popular frequency for QRS.

The preferred approach would be a tight Bandpass filter at the front end of the RX and good IF selectivity as narrow as you can manage. This way you will be able to hear/see even the weakest of signals. Some of the weaker signals on the band at my qth are perfectly readable but only in a very narrow bandwidth, giving a good signal over noise. These same signals are barely detectable with a wide bandwidth, either aural or visual. To ensure that nothing of interest is missed on 73 or 136 khz it is preferable to tune the band slowly with very narrow selectivity.

To try and monitor the whole band visually with the appropriate bandwidth selected does not work for weak signal reception, these weak signals would be buried in the noise and not detectable.

Most LF operators suffer from poor reception on LF because of environmental noise pickup and the last thing needed is to attenuate signals even more with unnecessary notch filters. The best approach is to use a good sensitive RX with good IF selectivity plus a DSP audio filter (or IF) and if necessary a well designed tight bandpass filter (tuned would be an advantage) at the front end of the RX.

73 de Mal/G3KEV

From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 5372 invoked from network); 18 Jan 2003 11:46:31 -0000 Received: from netmail01.services.quay.plus.net (212.159.14.219) by mailstore with SMTP; 18 Jan 2003 11:46:31 -0000 Received: (qmail 14310 invoked from network); 18 Jan 2003 11:47:54 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail01.services.quay.plus.net with SMTP; 18 Jan 2003 11:47:54 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18ZrRN-0004VK-00 for rsgb_lf_group-outgoing@blacksheep.org; Sat, 18 Jan 2003 11:47:09 +0000 Received: from [62.253.164.44] (helo=mta4-svc.business.ntl.com) by post.thorcom.com with esmtp (Exim 4.12) id 18ZrRI-0004VB-00 for rsgb_lf_group@blacksheep.org; Sat, 18 Jan 2003 11:47:04 +0000 Received: from l8p8y6 ([62.252.233.150]) by mta4-svc.business.ntl.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with SMTP id <20030118114659.ODPY29609.mta4-svc.business.ntl.com@l8p8y6> for ; Sat, 18 Jan 2003 11:46:59 +0000 Message-ID: <001d01c2bee7$4baf55e0$96e9fc3e@l8p8y6> From: "hamilton mal" To: rsgb_lf_group@blacksheep.org Date: Sat, 18 Jan 2003 11:15:26 -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: EA1PX Content-Type: text/html; charset=windows-1252 X-Spam-Status: No, hits=1.0 required=6.0tests=SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 X-Spam-Level: * 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Content-transfer-encoding: 8bit

I saw your signal a couple of nights ago at OOO copy. You were calling cq around 137.7 khz. F6BWO was also on at the same time with a very strong signal.

73 de Mal/G3KEV IO94SH

From rsgb_lf_group@blacksheep.org Sun Jan 01 00:00:00 1970 Return-Path: Received: (qmail 4138 invoked from network); 18 Jan 2003 07:35:55 -0000 Received: from netmail02.services.quay.plus.net (212.159.14.221) by mailstore with SMTP; 18 Jan 2003 07:35:55 -0000 Received: (qmail 15321 invoked from network); 18 Jan 2003 07:35:55 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail02.services.quay.plus.net with SMTP; 18 Jan 2003 07:35:55 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18ZnVm-0003w7-00 for rsgb_lf_group-outgoing@blacksheep.org; Sat, 18 Jan 2003 07:35:26 +0000 Received: from [212.135.6.13] (helo=smarthost3.mail.uk.easynet.net) by post.thorcom.com with esmtp (Exim 4.12) id 18ZnVm-0003vy-00 for rsgb_lf_group@blacksheep.org; Sat, 18 Jan 2003 07:35:26 +0000 Received: from tnt-5-142.easynet.co.uk ([195.40.200.142] helo=erica) by smarthost3.mail.uk.easynet.net with smtp (Exim 4.10) id 18ZnVl-0009My-00 for rsgb_lf_group@blacksheep.org; Sat, 18 Jan 2003 07:35:26 +0000 Message-ID: <000401c2bec4$84592f60$8ec828c3@erica> From: "g3ldo" To: rsgb_lf_group@blacksheep.org References: <000f01c2be8c$c6ce4160$ea00a8c0@f3a3a2> <001601c2be8e$47e4b6c0$09dc9384@jka> Date: Sat, 18 Jan 2003 07:37:50 -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 conditions Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.5 required=6.0tests=REFERENCES,SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.43 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false It is 0730. The W3EEE continues to show an excellent CFH39 signal (-6 or -7 dB) so I will keep up the 137.769+ transmissions. Regards, Peter, G3LDO e-mail Web