Return-Path: Received: from rly-ma09.mx.aol.com (rly-ma09.mail.aol.com [172.20.116.53]) by air-ma02.mail.aol.com (v121_r2.11) with ESMTP id MAILINMA021-8cd48aab90cdb; Tue, 19 Aug 2008 08:14:20 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-ma09.mx.aol.com (v121_r2.11) with ESMTP id MAILRELAYINMA097-8cd48aab90cdb; Tue, 19 Aug 2008 08:14:18 -0400 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1KVQ5i-0007Np-6c for rs_out_1@blacksheep.org; Tue, 19 Aug 2008 13:13:38 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1KVQ5h-0007Ng-6F for rsgb_lf_group@blacksheep.org; Tue, 19 Aug 2008 13:13:37 +0100 Received: from smtp2b.orange.fr ([80.12.242.144]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1KVQ5b-0006xC-0m for rsgb_lf_group@blacksheep.org; Tue, 19 Aug 2008 13:13:37 +0100 Received: from me-wanadoo.net (localhost [127.0.0.1]) by mwinf2b03.orange.fr (SMTP Server) with ESMTP id 206F5700008F for ; Tue, 19 Aug 2008 14:13:16 +0200 (CEST) Received: from JR (Mix-Dijon-106-3-107.w193-248.abo.wanadoo.fr [193.248.130.107]) by mwinf2b03.orange.fr (SMTP Server) with ESMTP id B702B7000093 for ; Tue, 19 Aug 2008 14:12:51 +0200 (CEST) X-ME-UUID: 20080819121255749.B702B7000093@mwinf2b03.orange.fr Message-ID: <200808191412480231.0B5B55E4@smtp.wanadoo.fr> In-Reply-To: <004e01c901f2$34404370$6401a8c0@asus> References: <281222.921.qm@web26004.mail.ukl.yahoo.com> <001301c901e6$917c2d30$2201a8c0@PC2> <731EB49F88B309428FFDDD2423F810E441C128@HERMES4.ds.leeds.ac.uk> <004e01c901f2$34404370$6401a8c0@asus> X-Mailer: Courier 3.50.00.09.1098 (http://www.rosecitysoftware.com) (P) Date: Tue, 19 Aug 2008 14:12:48 +0200 From: "John RABSON" To: rsgb_lf_group@blacksheep.org Mime-Version: 1.0 X-Karma: -140: lashback.ubl=-140.0 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: RE: NAVTEX interference Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable 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 X-AOL-IP: 193.82.116.20 X-AOL-SCOLL-AUTHENTICATION: listenair ; SPF_helo : n X-AOL-SCOLL-AUTHENTICATION: listenair ; SPF_822_from : n I wonder if something _has_ gone wrong with the transmitter. One afternoon many years ago, in Colchester, I was listening to the Third Pr= ogramme on 647kHz when suddenly a peculiar signal appeared on top of it. Th= is signal sounded like slow morse but was unreadable. I jotted down the mar= ks and spaces and realised it was 'CLN' with inverted keying CLN was an M= F aircraft beacon in Clacton on about 650kHz. It seems that the master osc= illator had developed a fault and the PA started acting as a power oscillato= r with a not very well determined frequency. As it was interfering with the Third Programme it was fixed fairly quickly. John F5VLF