Return-Path: Received: (qmail 622 invoked from network); 26 Nov 2001 13:01:11 -0000 Received: from unknown (HELO murphys-inbound.services.quay.plus.net) (212.159.14.225) by excalibur.plus.net with SMTP; 26 Nov 2001 13:01:11 -0000 Content-Transfer-Encoding: 8bit Received: (qmail 25292 invoked from network); 26 Nov 2001 13:01:20 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys.services.quay.plus.net with SMTP; 26 Nov 2001 13:01:20 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.33 #2) id 168LJz-00001f-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 26 Nov 2001 12:57:15 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from bob.dera.gov.uk ([192.5.29.90]) by post.thorcom.com with esmtp (Exim 3.33 #2) id 168LJy-00001a-00 for rsgb_lf_group@blacksheep.org; Mon, 26 Nov 2001 12:57:14 +0000 Received: by bob.dera.gov.uk; (8.8.8/1.3/10May95) id NAA12409; Mon, 26 Nov 2001 13:05:07 GMT Received: (qmail 9558 invoked from network); 26 Nov 2001 13:47:30 -0000 Received: from gauntlet.mail.dstl.gov.uk (192.168.9.10) by baton.dstl.gov.uk with SMTP; 26 Nov 2001 13:47:30 -0000 Received: by gauntlet.mail.dstl.gov.uk; id NAA19795; Mon, 26 Nov 2001 13:21:11 GMT Received: from unknown(172.17.128.171) by gauntlet.mail.dstl.gov.uk via smap (3.2) id xma019784; Mon, 26 Nov 01 13:20:41 GMT Received: from FRN-MAIL-R3.dstl.gov.uk (unverified) by mailguard.dstl.gov.uk (Content Technologies SMTPRS 4.1.5) with ESMTP id for ; Mon, 26 Nov 2001 13:00:35 +0000 Received: by frn-mail-r3.dstl.gov.uk with Internet Mail Service (5.5.2650.21) id ; Mon, 26 Nov 2001 12:56:06 -0000 Message-ID: <7D653C9C42F5D411A27C00508BF8803D55C64A@PDW-MAIL-R1> From: "Talbot Andrew" To: rsgb_lf_group@blacksheep.org Subject: LF: RE: 73k Beacon - SM6LKM on 80m Date: Mon, 26 Nov 2001 12:55:52 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset=iso-8859-1; format=flowed Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Read the article on Dopplergrams by G3PLX in RadCom three or four years ago ... There is likely to be several Hz of Doppler shift on that frequency at night time. Guess who forgot that simple fact last night ! Andy G4JNT > -----Original Message----- > From: James Moritz [mailto:j.r.moritz@herts.ac.uk] > Sent: 2001-11-26 12:23 > To: rsgb_lf_group@blacksheep.org > Subject: LF: 73k Beacon - SM6LKM on 80m > > > Dear LF Group, > > Transmitted on 72.4018kHz from about 2315 until 0505 last > night, with QRSS120. > > I also saw SM6LKM's 80m signals, about 5-6 Hz above the > nominal frequency, > between about 2130 and 2300. Copy was "M" to "O" (see > attachment) - I found > better results were obtained using somewhat wider bandwidth > spectrogram > settings than usual - Using Spectrum Lab, about 0.3Hz > resolution, and Argo > on 3s dots, slow speed, seemed to be optimum. If higher > resolution was > used, the lines were quite fuzzy, whether due to propagation > or TX I don't > know. RX was RA1792, and the antenna was my LF TX wire. This > could be an > interesting way of monitoring HF propagation; It hardly takes up any > bandwidth, and does not require an elaborate TX or antenna to > get a few mW ERP. > > Cheers, Jim Moritz > 73 de M0BMU > -- The Information contained in this E-Mail and any subsequent correspondence is private and is intended solely for the intended recipient(s). For those other than the recipient any disclosure, copying, distribution, or any action taken or omitted to be taken in reliance on such information is prohibited and may be unlawful.