Return-Path: Received: (qmail 12275 invoked from network); 13 Jan 2002 18:50:23 -0000 Received: from unknown (HELO murphys-inbound.services.quay.plus.net) (212.159.14.225) by excalibur.plus.net with SMTP; 13 Jan 2002 18:50:23 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: (qmail 27207 invoked from network); 13 Jan 2002 18:50:24 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys.services.quay.plus.net with SMTP; 13 Jan 2002 18:50:24 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.33 #2) id 16Ppdy-0006FT-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 13 Jan 2002 18:46:10 +0000 Received: from siaag1ac.compuserve.com ([149.174.40.5]) by post.thorcom.com with esmtp (Exim 3.33 #2) id 16Ppdx-0006FO-00 for rsgb_lf_group@blacksheep.org; Sun, 13 Jan 2002 18:46:09 +0000 Received: (from mailgate@localhost) by siaag1ac.compuserve.com (8.9.3/8.9.3/SUN-1.12) id NAA09318 for rsgb_lf_group@blacksheep.org; Sun, 13 Jan 2002 13:44:46 -0500 (EST) Date: Sun, 13 Jan 2002 13:44:14 -0500 From: "'Geri' Kinzel, DK8KW" Subject: LF: Re: DFCW, was 136 To: rsgb_lf_group@blacksheep.org Message-ID: <200201131344_MC3-EDAF-C7A5@compuserve.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Disposition: inline Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Hello Dave, thanks for the hint, also Fabian and Jeff have told me that 1 Hz shift for DFCW might be not enough. I need to find another solution. Currently I shift the 120 MHz main oscillator build into the DDS by varying the supply voltage of the sealed chrystal oscillator, so 1 Hz is the maximum I can get (actually I can vary between 0 and 1 Hz). Probably I need to build a separate 120 Mhz oszillator with a larger variance, so that I get at least 3 or 4 Hz at 136 kHz ... Hope Fabian, DJ1YFK (our youngest LF operator in DL!) makes it over to you, it is surprising how good his little 40 Watt tx works. By the way: QRSS must be a real challenge for Fabian, he normall is a HSC guy ... Best 73 Geri, DK8KW (W1KW)