Return-Path: Received: from mtain-md04.r1000.mx.aol.com (mtain-md04.r1000.mx.aol.com [172.29.96.88]) by air-me03.mail.aol.com (v129.4) with ESMTP id MAILINME031-8ba84d8e3f392ca; Sat, 26 Mar 2011 15:32:09 -0400 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-md04.r1000.mx.aol.com (Internet Inbound) with ESMTP id DACDD38000095; Sat, 26 Mar 2011 15:32:03 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Q3ZCI-0003m3-SC for rs_out_1@blacksheep.org; Sat, 26 Mar 2011 19:30:54 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Q3ZCI-0003lu-95 for rsgb_lf_group@blacksheep.org; Sat, 26 Mar 2011 19:30:54 +0000 Received: from mail-iy0-f171.google.com ([209.85.210.171]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1Q3ZCE-0008EU-Tx for rsgb_lf_group@blacksheep.org; Sat, 26 Mar 2011 19:30:54 +0000 Received: by iyi20 with SMTP id 20so2349802iyi.16 for ; Sat, 26 Mar 2011 12:30:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:in-reply-to:references:date :message-id:subject:from:to:content-type; bh=y3mCoWwp11E/ZiPcX2jEdMgiLI3+5qA4rPQAnvRbiuE=; b=kKayptGA209VtyCLCSwCRDFCvhigvYyOdLiBM0GdfnOQG5Ei44R+ra0rzSaCfN6wrN HeAMCdqqfcsznfrvrJGUXqJ1AU6YfKC7SQcuOsJKjXysLwtOWuqCMIcbSW6c6wjDB6HH R/1oX157NY9F+jgX8TaDnV6BBJuCswKd00Dzo= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=xzWYXznc2AwV+U3Nloe9PIKpYV0F5z6fbxUqz7OY6IO8VP72KoQqBrJbgsyT/KpTRf K+Pe5GrK24LbMOQFF29r5D+IdHiCL04rfMsV6Yy6pcU+jR/m9xLYOww2FFSesF8Ei2p7 K3K34iY79+N5KRR2XKoAwpSXJIEaGIWC9heLg= MIME-Version: 1.0 Received: by 10.43.71.13 with SMTP id yi13mr3436743icb.432.1301167844157; Sat, 26 Mar 2011 12:30:44 -0700 (PDT) Received: by 10.42.240.129 with HTTP; Sat, 26 Mar 2011 12:30:44 -0700 (PDT) In-Reply-To: <001801cbebe3$092081e0$0401a8c0@xphd97xgq27nyf> References: <001801cbebe3$092081e0$0401a8c0@xphd97xgq27nyf> Date: Sat, 26 Mar 2011 19:30:44 +0000 Message-ID: From: Roger Lapthorn To: rsgb_lf_group@blacksheep.org DomainKey-Status: good (testing) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: Re: LF: Re: CW transmission around 17.975kHz at 1640z March 26th Content-Type: multipart/alternative; boundary=bcaec517ac8c24ea64049f67bfea X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.8 required=5.0 tests=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-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-d238.1 ; domain : gmail.com DKIM : pass x-aol-sid: 3039ac1d60584d8e3f326f52 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none X-Mailer: Unknown (No Version) --bcaec517ac8c24ea64049f67bfea Content-Type: text/plain; charset=ISO-8859-1 Thanks Mal. Glad to hear from someone who knows it all. 73s Roger G3XBM On 26 March 2011 18:24, mal hamilton wrote: > You are out of touch again. CW acty often pops up in the VLF environment, > it does not mean it is necessarily military. > g3kev > > > ----- Original Message ----- > *From:* Roger Lapthorn > *To:* rsgb_lf_group@blacksheep.org > *Sent:* Saturday, March 26, 2011 4:48 PM > *Subject:* LF: CW transmission around 17.975kHz at 1640z March 26th > > To check my loop is working I run SM6LKM's VLF receiver to see levels of > the Alphas and GBZ etc and notice a station sending 5 number sequences in CW > around 17.975kHz. This frequency was not accurately measured as I only > caught about 2-3 minutes before the signal disappeared. It has now > reappeared with what sounds like high speed CW. > > Can anyone tell me who this might be? Signal was about 30dB over noise on > my loop aiming roughly WSW-ENE. > > I wasn't aware any of the military VLF users still used CW. > > 73s > Roger G3XBM > > -- > http://g3xbm-qrp.blogspot.com/ > http://www.g3xbm.co.uk > http://www.youtube.com/user/g3xbm > https://sites.google.com/site/sub9khz/ > G3XBM GQRP 1678 ISWL G11088 > > -- http://g3xbm-qrp.blogspot.com/ http://www.g3xbm.co.uk http://www.youtube.com/user/g3xbm https://sites.google.com/site/sub9khz/ G3XBM GQRP 1678 ISWL G11088 --bcaec517ac8c24ea64049f67bfea Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Thanks Mal. Glad to hear from someone who knows it all.

73s
Roge= r G3XBM



On 26 March 2011 18:24,= mal hamilton <g3kevmal@talktalk.net> wrote:
You are out of touch again. CW acty often pops= up in the=20 VLF environment, it does not mean it is necessarily military.
g3kev
=A0
----- Original Message -----
Sent: Saturday, March 26, 2011= 4:48=20 PM
Subject: LF: CW transmission aro= und=20 17.975kHz at 1640z March 26th

To check my loop is working I run SM6LKM's VLF receiv= er to see=20 levels of the Alphas and GBZ etc and notice a station sending 5 number= =20 sequences in CW around 17.975kHz. This frequency was not accurately meas= ured=20 as I only caught about 2-3 minutes before the signal disappeared. It has= now=20 reappeared with what sounds like high speed CW.

Can anyone tell= me who=20 this might be? Signal was about 30dB over noise on my loop aiming roughl= y=20 WSW-ENE.

I wasn't aware any of the military VLF users still= used=20 CW.

73s
Roger G3XBM

--
http://g3xbm-qrp.blogspot.= com/
http://ww= w.g3xbm.co.uk
http://www= .youtube.com/user/g3xbm
https://sites.google.com/site/sub9khz/
G3XBM=A0=A0 GQRP=20 1678=A0=A0=A0 ISWL G11088



--
http://g3xbm-qrp.blogspot.com/<= br>http://www.g3xbm.c= o.uk
http://www= .youtube.com/user/g3xbm
https://sites.google.com/site/sub9khz/
G3XBM=A0=A0 GQRP 1678= =A0=A0=A0 ISWL G11088
--bcaec517ac8c24ea64049f67bfea--