Return-Path: Received: (qmail 13196 invoked from network); 20 Jun 2001 11:24:44 -0000 Received: from unknown (HELO murphys-inbound.servers.plus.net) (212.159.14.225) by excalibur.plus.net with SMTP; 20 Jun 2001 11:24:44 -0000 Received: (qmail 24606 invoked from network); 20 Jun 2001 11:23:40 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys with SMTP; 20 Jun 2001 11:23:40 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.16 #2) id 15Cfxy-0005o9-00 for rsgb_lf_group-outgoing@blacksheep.org; Wed, 20 Jun 2001 12:16:10 +0100 Received: from cmailg7.svr.pol.co.uk ([195.92.195.177]) by post.thorcom.com with esmtp (Exim 3.16 #2) id 15Cfxx-0005o4-00 for rsgb_lf_group@blacksheep.org; Wed, 20 Jun 2001 12:16:09 +0100 Received: from modem-122.annuminas.dialup.pol.co.uk ([62.136.116.250] helo=g3aqc) by cmailg7.svr.pol.co.uk with smtp (Exim 3.13 #0) id 15CfxF-00046r-00 for rsgb_lf_group@blacksheep.org; Wed, 20 Jun 2001 12:15:26 +0100 Message-ID: <001e01c0f97a$5aaeb7e0$fa74883e@g3aqc> From: "Laurie Mayhead" To: rsgb_lf_group@blacksheep.org Subject: LF: Re. 73kHz beacon/ant.problems Date: Wed, 20 Jun 2001 12:15:10 +0100 MIME-Version: 1.0 Content-Type: text/html; charset=windows-1252 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Content-transfer-encoding: 8bit

Hi Tom and Jim,

I can contribute to this discussion. I terminate all wires at least 2M from any leaves etc and notice no change when they are wet or dry,also no difference when the trees came into leaf. So hopefully this is a "safe" distance. However FS measurments at 3.3 Km indicate that only half the power fed to the ant. (current squared times calculated R res) is radiated! I dont think any greater spacing would help much,because the entire Ant system is enclosed by trees on all sides, a sort of Faraday shield Hi. I dont suppose my XYL, the local authority or anyone else would approve if I cut down all the trees, and if I did what would I hang all my Ants. on. 73s Laurie.