Envelope-to: dave@picks.force9.co.uk Delivery-date: Tue, 12 Jul 2005 18:14:20 +0100 Received: by ptb-mxcore14.plus.net with spam-scanned (PlusNet MXCore v2.00) id 1DsOKq-0003UU-85 for dave@picks.force9.co.uk; Tue, 12 Jul 2005 18:14:20 +0100 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore14.plus.net with esmtp (PlusNet MXCore v2.00) id 1DsOKq-0003TF-3U for dave@picks.force9.co.uk; Tue, 12 Jul 2005 18:14:20 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1DsOKW-0002ME-HV for rs_out_1@blacksheep.org; Tue, 12 Jul 2005 18:14:00 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1DsOKW-0002M5-1K for rsgb_lf_group@blacksheep.org; Tue, 12 Jul 2005 18:14:00 +0100 Received: from hestia.herts.ac.uk ([147.197.200.9]) by relay1.thorcom.net with esmtp (Exim 4.51) id 1DsOQ2-00011p-Db for rsgb_lf_group@blacksheep.org; Tue, 12 Jul 2005 18:19:43 +0100 Received: from altair ([147.197.215.111] helo=altair.herts.ac.uk) by hestia.herts.ac.uk with esmtp (Exim 3.22 #1) id 1DsOKF-00056p-00 for rsgb_lf_group@blacksheep.org; Tue, 12 Jul 2005 18:13:43 +0100 Received: from [147.197.164.230] (helo=RD40002) by altair.herts.ac.uk with esmtp (Exim 4.42) id 1DsOJl-0000I7-5i for rsgb_lf_group@blacksheep.org; Tue, 12 Jul 2005 18:13:13 +0100 From: "james moritz" To: rsgb_lf_group@blacksheep.org Date: Tue, 12 Jul 2005 18:13:13 +0100 Message-ID: <000001c58704$fca83c30$e6a4c593@RD40002> MIME-Version: 1.0 X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.4510 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 Importance: Normal In-Reply-To: X-UH-MailScanner: No Virus detected X-UH-MailScanner-From: j.r.moritz@herts.ac.uk Subject: LF: RE: Rugby lines Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit 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 X-PN-SpamFiltered: by PlusNet MXCore (v2.00) Dear all I thought I'd run the grabber on the US window to see how Rugby affects the region around 137.777 and it occurs to me that I can use the lines to calibrate my receiver exactly. Can anyone tell me the exact fequency of the Rugby Loran line at about 137.781? Dear Dave, LF Group, The Rugby Loran lines are at frequencies of n x 1 / (2 x 63710us), or n x 7.4283167434259396820680433813698Hz (give or take), where n is an integer, and 63710us is the GRI of the Lessay chain. For this one, n is 18548, the frequency is 137780.418957 to the nearest micro-hertz :-) Cheers, Jim Moritz 73 de M0BMU