Return-Path: Received: (qmail 11 invoked from network); 26 Aug 2001 21:02:31 -0000 Received: from unknown (HELO warrior-inbound.services.quay.plus.net) (212.159.14.227) by excalibur-qfe1-smtp-plusnet.harl.plus.net with SMTP; 26 Aug 2001 21:02:31 -0000 Received: (qmail 16921 invoked from network); 26 Aug 2001 21:00:54 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by warrior with SMTP; 26 Aug 2001 21:00:54 -0000 X-Priority: 3 Received: from majordom by post.thorcom.com with local (Exim 3.16 #2) id 15b6xa-0006rp-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 26 Aug 2001 21:56:46 +0100 X-MSMail-Priority: Normal Received: from imo-m05.mx.aol.com ([64.12.136.8]) by post.thorcom.com with esmtp (Exim 3.16 #2) id 15b6xV-0006rk-00 for rsgb_lf_group@blacksheep.org; Sun, 26 Aug 2001 21:56:41 +0100 Received: from MarkusVester@aol.com by imo-m05.mx.aol.com (mail_out_v31_r1.4.) id l.40.104ddebe (3866) for ; Sun, 26 Aug 2001 16:55:26 -0400 (EDT) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 From: MarkusVester@aol.com Message-ID: <40.104ddebe.28babc3e@aol.com> Date: Sun, 26 Aug 2001 16:55:26 EDT Subject: Re: LF: Strange signal from DCF42? To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 8bit X-Mailer: AOL 4.0.i for Windows 95 sub 72 Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Hi John, > thought I would look at the new frequency for SXV reported by Costas, and > found it overwhelmed by a very strong and wide signal at 123.69 kHz, which is > the frequency used by DCF42. However the modulation appears to be quite > different from what I have heard before. yes, it certainly looks like what I am seeing, it doesnt seem to have changed here. The line of symmetry in your pic is the center of the 2.4 kHz wide DGPS spectrum. Not sure about the actual modulation parameters, but it looks like 2379 baud PSK, given the frequency offset of the pilot at 122.500 kHz. There is a 100 Hz shift RTTY stn at 129.8 kHz, could that possibly be SXV? 73 Markus