Return-Path: Received: (qmail 388 invoked from network); 4 Mar 2000 03:49:32 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by grants.core.plus.net.uk with SMTP; 4 Mar 2000 03:49:32 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.02 #1) id 12R5KO-0006Vb-00 for rsgb_lf_group-outgoing@blacksheep.org; Sat, 04 Mar 2000 03:34:04 +0000 Received: from host.king.igs.net ([216.58.2.2]) by post.thorcom.com with esmtp (Exim 3.02 #1) id 12R5KM-0006VV-00 for rsgb_lf_group@blacksheep.org; Sat, 04 Mar 2000 03:34:02 +0000 Received: from server1 (ttyC15.king.igs.net [216.58.2.143]) by host.king.igs.net (8.9.3/8.9.2) with SMTP id WAA42097; Fri, 3 Mar 2000 22:33:50 -0500 (EST) (envelope-from kayser@king.igs.net) Message-ID: <002601bf858a$6127c2c0$0a00a8c0@server1.ThreeLakes.ca> From: "Larry Kayser" To: rsgb_lf_group@blacksheep.org, "M. Bruno" Subject: Re: LF: CFH Date: Fri, 3 Mar 2000 22:06:03 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.5 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Marco >At my QTH in Nort Italy CFH was about 15 dB over noise on Spectrogram >at 10 Hz resolution, around 0200z of March 3. >Is the frequency almost exactly 137.00 ? Yes, CFH is exactly centered on 137.000 kHz. The pseudo random noise modulation has no carrier and there is nothing marking the center of the occupied spectrum so it is necessary to look at the power spectrum and find the middle which will always be 137.000 kHz. CFH does on occasion send other modulation methods, in the last three months I have heard a FAX transmission on the frequency as well as at least one FSK session as well. Larry VA3LK