Return-Path: Received: from mtain-mg02.r1000.mx.aol.com (mtain-mg02.r1000.mx.aol.com [172.29.96.202]) by air-me06.mail.aol.com (v129.4) with ESMTP id MAILINME063-8bb64d790066247; Thu, 10 Mar 2011 11:46:30 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mg02.r1000.mx.aol.com (Internet Inbound) with ESMTP id 6C68938000322; Thu, 10 Mar 2011 11:46:28 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1PxizY-0005iz-9j for rs_out_1@blacksheep.org; Thu, 10 Mar 2011 16:45:36 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1PxizX-0005ip-Ok for rsgb_lf_group@blacksheep.org; Thu, 10 Mar 2011 16:45:35 +0000 Received: from cpsmtpb-ews03.kpnxchange.com ([213.75.39.6]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1PxizW-0004sY-Fy for rsgb_lf_group@blacksheep.org; Thu, 10 Mar 2011 16:45:35 +0000 Received: from cpbrm-ews14.kpnxchange.com ([10.94.84.145]) by cpsmtpb-ews03.kpnxchange.com with Microsoft SMTPSVC(6.0.3790.4675); Thu, 10 Mar 2011 17:45:28 +0100 Received: from CPSMTPM-cmt107.kpnxchange.com ([195.121.3.23]) by cpbrm-ews14.kpnxchange.com with Microsoft SMTPSVC(6.0.3790.4675); Thu, 10 Mar 2011 17:45:28 +0100 Received: from ns94d01ae4d850 ([81.204.139.159]) by CPSMTPM-cmt107.kpnxchange.com with Microsoft SMTPSVC(7.0.6002.18264); Thu, 10 Mar 2011 17:45:28 +0100 Message-ID: From: "henny van elst" To: References: <4de6fab766f34e85aafd11d07b1a7a36@kabelmail.de> Date: Thu, 10 Mar 2011 17:44:58 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5843 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 X-OriginalArrivalTime: 10 Mar 2011 16:45:28.0181 (UTC) FILETIME=[8FB1A250:01CBDF42] X-RcptDomain: blacksheep.org X-Spam-Score: 3.4 (+++) X-Spam-Report: autolearn=disabled,FORGED_MUA_OUTLOOK=3.36,HTML_MESSAGE=0.001 Subject: Re: Re: Re: LF: GRABBER Content-Type: multipart/alternative; boundary="----=_NextPart_000_0007_01CBDF4A.E008D400" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: ** X-Spam-Status: No, hits=2.4 required=5.0 tests=FORGED_MUA_OUTLOOK,HTML_30_40, HTML_MESSAGE autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false x-aol-global-disposition: G x-aol-sid: 3039ac1d60ca4d79006319ab X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none ------=_NextPart_000_0007_01CBDF4A.E008D400 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Tu Uwe, I can only make 0.1Hz steps , Henny pa3cpm best 73's ----- Original Message -----=20 From: uwe-jannsen@kabelmail.de=20 To: rsgb_lf_group@blacksheep.org=20 Sent: Thursday, March 10, 2011 4:59 PM Subject: Re: Re: Re: LF: GRABBER Hi all, I fiddled about finding a somewhat better qrg. the result is: now dj8wx is transmitting on 8970,0177Hz. best regards Uwe/dj8wx ----------------------------------------------------------------------= -------- Von: rsgb_lf_group@blacksheep.org Gesendet: 10.03.2011 16:24 An: rsgb_lf_group@blacksheep.org Betreff: Re: Re: LF: GRABBER ----------------------------------------------------------------------= -------- Hi Stefan, hi Henny, Stefan, part of your question has been answered by Paul Nichelson. pse see: http://tech.groups.yahoo.com/group/VLF_Group/message/17456 the reference is a GPS diciplined 10MHz signal.=20 no divider in use. the accurate sine wave is generated by the high= speed microcontroller AT90S2313followed by a R matrixc and a lowpass= filter cutqrg 10kHz. the phase is GPS sychronized. the time is locked to GPS 1pps. negative: the resolution (step size) is 0,3mHz (32-bit). theoretical= ly. really: 63xmHz. the eeprom doesnt take any notice of the last two= signs of the HEX group. so it can generate near 8970,000Hz: 8970,022= xHz or 8969,959xHz. best regards Uwe/dj8wx ----------------------------------------------------------------------= -------- Von: rsgb_lf_group@blacksheep.org Gesendet: 10.03.2011 13:42 An: rsgb_lf_group@blacksheep.org Betreff: Re: LF: GRABBER ----------------------------------------------------------------------= -------- Hello Henny, Uwe, VLF, Ah, you've already seen it ;-)=20 I just wanted to post that i have splitted my 60000 window. Now the= range arround 8970.000 +- 4 uHz and 8970.020...8970.025 is visible. Since it has stored the last 10 days or so in the buffer, DJ8WX's tr= ansmission of last week is now visible in 47 uHz as well. Uwe, what is the exact frequency on which you are transmitting? What= is the original reference frequency and what is the divider ratio? May there be a conflict with Hennys transmission? Now we are in a ra= nge where it is important to know the frequency to a uHz! If i look at= Victor's spectrogram, it looks Henny is slightly below 8970.022 Hz,= maybe 0.2 mHz. But this may be not enough to make out the difference= (?) Oh, i just looked at the spectrogram and see a faint trace at 897= 0.0217 Hz. Is it you, Henny? It's still to much guesswork but a first= step on the way to a proper ID. 3 dB QRO would be a good way to check= that :-) 73, Stefan/DK7FC Am 10.03.2011 13:11, schrieb henny van elst:=20 Hi Stefan, tu for the 60000grabber, i will keep the tx on, henny pa3cpm best 73's to All. ----------------------------------------------------------------------= -------- ----------------------------------------------------------------------= -------- Geen virus gevonden in dit bericht. Gecontroleerd door AVG - www.avg.com Versie: 10.0.1204 / Virusdatabase: 1497/3495 - datum van uitgifte:= 03/09/11 ------=_NextPart_000_0007_01CBDF4A.E008D400 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
Tu Uwe,
I can only make 0.1Hz steps ,
Henny pa3cpm
best 73's
 
 
 
----- Original Message -----
Sent: Thursday, March 10, 201= 1 4:59=20 PM
Subject: Re: Re: Re: LF: GRAB= BER

H= i=20 all,

I fiddled about finding a somewhat better qrg.
the re= sult=20 is:
now dj8wx is transmitting on 8970,0177Hz.

best=20 regards
Uwe/dj8wx



Von: rsgb_lf_grou= p@blacksheep.org
Gesendet:=20 10.03.2011 16:24
An: rsgb_lf_group@blacksheep.org
Betreff:=20 Re: Re: LF: GRABBER


Hi Stefan, hi=20 Henny,

Stefan, part of your question has been answered by Pau= l=20 Nichelson.
pse see:

http://tech.groups.yahoo.co= m/group/VLF_Group/message/17456

the reference is= a GPS=20 diciplined 10MHz signal.

no divider in us= e. the=20 accurate sine wave is generated by the high speed microcontroller=20 AT90S2313followed by a R matrixc and a  lowpass filter cutqrg= =20 10kHz.

the phase is GPS= sychronized.=20 the time is locked to GPS 1pps.

negative: the re= solution (step=20 size) is 0,3mHz (32-bit). theoretically. really: 63xmHz. the eeprom= doesnt=20 take any notice of the last two signs of the HEX group. so it= can=20 generate near 8970,000Hz:  8970,022xHz or 8969,959xHz.

best regards

Uwe/dj8wx=




Von:=20 rsgb_lf_group@blacksheep.org
Gesendet: 10.03.2011 13:42
An:=20 rsgb_lf_group@blacksheep.org
Betreff: Re: LF: GRABBER

Hello Henny, Uwe,= =20 VLF,

Ah, you've already seen it ;-)
I just wanted to post= that i=20 have splitted my 60000 window. Now the range arround 8970.000 +- 4= uHz and=20 8970.020...8970.025 is visible.
Since it has stored the last 10= days or so=20 in the buffer, DJ8WX's transmission of last week is now visible in= 47 uHz as=20 well.

Uwe, what is the exact frequency on which you are trans= mitting?=20 What is the original reference frequency and what is the divider=20 ratio?

May there be a conflict with Hennys transmission? Now= we are in=20 a range where it is important to know the frequency to a uHz! If i= look at=20 Victor's spectrogram, it looks Henny is slightly below 8970.022 Hz,= maybe 0.2=20 mHz. But this may be not enough to make out the difference (?) Oh,= i just=20 looked at the spectrogram and see a faint trace at 8970.0217 Hz. Is= it you,=20 Henny? It's still to much guesswork but a first step on the way to= a proper=20 ID. 3 dB QRO would be a good way to check that :-)



73= ,=20 Stefan/DK7FC


Am 10.03.2011 13:11, schrieb henny van elst:=
Hi=20 Stefan,
 
tu for th= e=20 60000grabber,
i will ke= ep the tx=20 on,
henny=20 pa3cpm
best 73's= to=20 All.

Geen virus gevonde= n in dit=20 bericht.
Gecontroleerd door AVG - www.avg.com
Versie: 10.0.1204 /=20 Virusdatabase: 1497/3495 - datum van uitgifte:=20 03/09/11

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