X-GM-THRID: 1201390145947228971 X-Gmail-Labels: rsgb lf X-Gmail-Received: 876bbc22d7ae96c52a7f4ea2e49dce8803504afe Delivered-To: daveyxm@gmail.com Received: by 10.54.70.6 with SMTP id s6cs6436wra; Sun, 23 Apr 2006 02:54:47 -0700 (PDT) Received: by 10.65.141.20 with SMTP id t20mr285364qbn; Sun, 23 Apr 2006 02:54:47 -0700 (PDT) Return-Path: Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mx.gmail.com with ESMTP id p4si543324qba.2006.04.23.02.54.46; Sun, 23 Apr 2006 02:54:47 -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 1FXbGZ-00011i-Mc for rs_out_1@blacksheep.org; Sun, 23 Apr 2006 10:52:31 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1FXbGZ-00011Z-AY for rsgb_lf_group@blacksheep.org; Sun, 23 Apr 2006 10:52:31 +0100 Received: from smtp802.mail.ukl.yahoo.com ([217.12.12.139]) by relay1.thorcom.net with smtp (Exim 4.51) id 1FXd4S-00046w-0r for rsgb_lf_group@blacksheep.org; Sun, 23 Apr 2006 12:48:24 +0100 Received: (qmail 16370 invoked from network); 23 Apr 2006 09:51:09 -0000 Received: from unknown (HELO ?213.122.12.92?) (james.moritz@btopenworld.com@213.122.12.92 with login) by smtp802.mail.ukl.yahoo.com with SMTP; 23 Apr 2006 09:51:09 -0000 Received: from 127.0.0.1 (AVG SMTP 7.1.385 [268.4.5/322]); Sun, 23 Apr 2006 10:49:22 +0100 Message-ID: <002f01c666bb$3299de20$5c0c7ad5@w4o8m9> From: "James Moritz" To: References: <444AA539.8020603@freenet.de> <444B3DDB.9020105@freenet.de> Date: Sun, 23 Apr 2006 10:49:21 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2615.200 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2615.200 X-Spam-Score: -1.1 (-) X-Spam-Report: autolearn=disabled,AWL=-1.141 Subject: Re: LF: RE: Re: RE: 18.5 kHz in CT Content-Type: text/plain; charset="iso-8859-1" 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: 5640 Dear Mike, LF Group, I once tried tuning up my LF TX wire on 909kHz, the frequency of the nearest of the broadcast TXs at Brookmans Park (about 500m away). This lit a 60W bulb, but I can't reccomend it as a source of illumination, since it flickered a lot with the modulation envelope. Should be OK with FSK or MSK signals though. At this QTH, when connecting an antenna to a receiver, it is important to remember there is potentially only 30 - 40 dB attenuation between the RX input and the Radio 5 Live TX output... Cheers, Jim Moritz 73 de M0BMU ----- Original Message ----- From: Wolf DL4YHF To: Sent: Sunday, April 23, 2006 9:42 AM Subject: Re: LF: RE: Re: RE: 18.5 kHz in CT > Hi Mike, > > Yes I was tempted by that thought. But the rectifier would cause > harmonic currents in the antenna wire, badly affecting by reception on > LF (whow, back on topic..). > > So I will continue illuminating and heating the shack the usual way ! > > Nice sunday everyone, > Wolf DL4YHF . >