Return-Path: Received: (qmail 28467 invoked from network); 15 Oct 2001 13:24:41 -0000 Content-Transfer-Encoding: 8bit Received: from unknown (HELO warrior-inbound.services.quay.plus.net) (212.159.14.227) by excalibur-qfe1-smtp-plusnet.harl.plus.net with SMTP; 15 Oct 2001 13:24:41 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: (qmail 22282 invoked from network); 15 Oct 2001 13:22:25 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by warrior with SMTP; 15 Oct 2001 13:22:25 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.33 #2) id 15t7bs-0004TS-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 15 Oct 2001 14:16:48 +0100 Received: from k2.pncl.co.uk ([212.35.226.183]) by post.thorcom.com with esmtp (Exim 3.33 #2) id 15t7bp-0004TJ-00 for rsgb_lf_group@blacksheep.org; Mon, 15 Oct 2001 14:16:46 +0100 Received: from 233.pncl.co.uk (246.235.35.212.in-addr.arpa.ip-pool.cix.co.uk [212.35.235.246]) by k2.pncl.co.uk (8.11.3/8.11.3) with ESMTP id f9FDG4X01631 for ; Mon, 15 Oct 2001 14:16:04 +0100 Message-ID: <5.0.2.1.2.20011015140639.00a2c4a0@mail.pncl.co.uk> X-Sender: blanch@mail.pncl.co.uk X-Mailer: QUALCOMM Windows Eudora Version 5.0.2 Date: Mon, 15 Oct 2001 14:15:38 +0100 To: rsgb_lf_group@blacksheep.org From: "Walter Blanchard" Subject: LF: Tree Losses MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: At 73/136 khz how far away from a wet tree do you have to be not to see any RF loss? At one extreme if your ant runs through it you will lose a lot; at the other if it is several kms away you won't lose anything. Is there a critical distance? And the reverse - if there's a wet tree close to you in the same direction as a transmitter, will you receive a much weaker signal than you ought? Does it act like a metal plate does at microwaves? Walter G3JKV.