Return-Path: Received: (qmail 51621 invoked from network); 17 Jul 2004 21:28:05 -0000 Received: from unknown (HELO ptb-spamcore01.plus.net) (192.168.71.1) by ptb-mailstore01.plus.net with SMTP; 17 Jul 2004 21:28:05 -0000 Received: from [192.168.67.2] (helo=ptb-mxcore02.plus.net) by ptb-spamcore01.plus.net with esmtp (Exim 4.32; FreeBSD) id 1Blwkb-000McS-Ck for dave@picks.force9.co.uk; Sat, 17 Jul 2004 22:29:45 +0100 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1Blwix-000LXk-A5 for dave@picks.force9.co.uk; Sat, 17 Jul 2004 21:28:03 +0000 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Blwil-0000pu-9j for rs_out_1@blacksheep.org; Sat, 17 Jul 2004 22:27:51 +0100 Received: from [193.82.116.30] (helo=relay.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Blwik-0000pl-VQ for rsgb_lf_group@blacksheep.org; Sat, 17 Jul 2004 22:27:50 +0100 Received: from imo-d05.mx.aol.com ([205.188.157.37]) by relay.thorcom.net with esmtp (Exim 4.34) id 1Blwih-0006oR-94 for rsgb_lf_group@blacksheep.org; Sat, 17 Jul 2004 22:27:50 +0100 Received: from WarmSpgs@aol.com by imo-d05.mx.aol.com (mail_out_v37_r2.6.) id l.25.4aaabb53 (3842) for ; Sat, 17 Jul 2004 17:27:37 -0400 (EDT) From: WarmSpgs@aol.com Message-ID: <25.4aaabb53.2e2af3c9@aol.com> Date: Sat, 17 Jul 2004 17:27:37 EDT To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 X-Mailer: AOL 4.0 for Windows 95 sub 120 X-Spam-Score: 0.3 (/) X-Spam-Report: autolearn=no,NO_REAL_NAME=0.285 Subject: Re: LF: Ground system Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.3 required=5.0 tests=NO_REAL_NAME 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-Spam-Filtered: by PlusNet SpamCORE (v3.00) In a message dated 7/17/04 8:11:50 AM Eastern Daylight Time, blanch@pncl.co.uk writes: > Next to my patch there's a 150ft (50m) deep well that has dried up and the > owner now intends to fill it in. He doesn't mind me dropping a few copper > wires down it before he does so. Question: is this a better use of 400 ft > of copper wire for earthing purposes than simply spreading it out along the > ground as radials in the traditional way? For RF purposes, no. As Rik said, it may be useful in conjunction with other earthing--if you want additional grounding of DC or 50 Hz. However, that long a run of wire, going straight down, has quite a bit of lossy soil between it and the RF from your antenna.