Return-Path: Received: (qmail 9908 invoked from network); 4 May 2001 14:02:41 -0000 Received: from unknown (HELO murphys-inbound.servers.plus.net) (212.159.14.225) by excalibur.plus.net with SMTP; 4 May 2001 14:02:41 -0000 Received: (qmail 22808 invoked from network); 4 May 2001 14:02:12 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys with SMTP; 4 May 2001 14:02:12 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from majordom by post.thorcom.com with local (Exim 3.16 #2) id 14vg36-0006Oo-00 for rsgb_lf_group-outgoing@blacksheep.org; Fri, 04 May 2001 14:55:12 +0100 Received: from imo-m01.mx.aol.com ([64.12.136.4]) by post.thorcom.com with esmtp (Exim 3.16 #2) id 14vg32-0006Oj-00 for rsgb_lf_group@blacksheep.org; Fri, 04 May 2001 14:55:08 +0100 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from MarkusVester@aol.com by imo-m01.mx.aol.com (mail_out_v30.10.) id l.20.15fa640f (4572) for ; Fri, 4 May 2001 09:53:59 -0400 (EDT) From: MarkusVester@aol.com Message-ID: <20.15fa640f.28240e77@aol.com> Date: Fri, 4 May 2001 09:53:59 EDT Subject: LF: Re DDH48 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 Uwe, Alan, Alan's hint about the IMP freqs fits neatly, including the FSK shift: 2*(147.3[+-42Hz]) - 138.83 = 155.77[+-85] , 147.3[+-42] + 128.93 - 138.83 = 137.4 [+-42] . In this case, you should also be able to notice DCF's tell-tale modulation bursts on the IMPs. I don't see any of these IMPs at my QTH. Perhaps there is some "rusty-nail" type of nonlinearity, generating intermodulation locally. Can you DF it with your loop? Or use a portable LW radio, tuned to Deutschlandfunk's USB above 153 kHz? 73 es good luck de Markus, DF6NM