X-GM-THRID: 1205553291555435496 X-Gmail-Labels: rsgb lf X-Gmail-Received: 74f4a00aadbf0cedbb4ea9daa594e9e74204cd81 Delivered-To: daveyxm@gmail.com Received: by 10.54.127.17 with SMTP id z17cs47436wrc; Sat, 10 Jun 2006 06:50:49 -0700 (PDT) Received: by 10.48.255.20 with SMTP id c20mr2767338nfi; Sat, 10 Jun 2006 06:50:48 -0700 (PDT) Return-Path: Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mx.gmail.com with ESMTP id y23si4431730nfb.2006.06.10.06.50.48; Sat, 10 Jun 2006 06:50:48 -0700 (PDT) Received-SPF: neutral (gmail.com: 193.82.116.20 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Fp3pB-0007xr-CM for rs_out_1@blacksheep.org; Sat, 10 Jun 2006 14:48:25 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Fp3pA-0007xi-RE for rsgb_lf_group@blacksheep.org; Sat, 10 Jun 2006 14:48:24 +0100 Received: from smarthost1.mail.uk.easynet.net ([212.135.6.11]) by relay1.thorcom.net with esmtp (Exim 4.62) (envelope-from ) id 1Fp3p7-0008NB-6t for rsgb_lf_group@blacksheep.org; Sat, 10 Jun 2006 14:48:24 +0100 Received: from bb-87-82-0-174.ukonline.co.uk ([87.82.0.174] helo=[192.168.0.2]) by smarthost1.mail.uk.easynet.net with esmtp (Exim 4.10) id 1Fp3p6-000P4j-00 for rsgb_lf_group@blacksheep.org; Sat, 10 Jun 2006 14:48:20 +0100 Message-ID: <448AD431.4000703@ukonline.co.uk> Date: Sat, 10 Jun 2006 15:16:17 +0100 From: Peter Dodd User-Agent: Mozilla Thunderbird 1.0.7 (Windows/20050923) X-Accept-Language: en-us, en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <4487EB8A.27171.B415B8@localhost> In-Reply-To: <4487EB8A.27171.B415B8@localhost> X-Spam-Score: -1.0 (-) X-Spam-Report: autolearn=disabled,AWL=-0.975 Subject: Re: LF: BBC 198kHz Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Status: O X-Status: X-Keywords: X-UID: 5157 Mike Dennison wrote: >Thanks to all those who responded to my query about the apparent >errors seen on frequency standards. > >I am now convinced my problem is caused by frequency error in my TS- >850. > I found the callibration on my 850 was out by about 1Hz on 136kHz. I also found the callibration on other frequency standards were also out by different amounts, depending on frequency - very similar to Mike's results. Furthermore, the receiver required at least 30 minutes warm up for the frequency to settle. The frequency calibration on the DDS of my IC-706 and FT-817 is more accurate. However, having said that, the 850 performance on LF is so good that applying an small frequency offset is a minor inconveniance. Peter, G3LDO