Return-Path: Received: (qmail 3507 invoked from network); 17 Dec 2002 13:13:58 -0000 Received: from marstons.services.quay.plus.net (212.159.14.223) by mailstore with SMTP; 17 Dec 2002 13:13:58 -0000 Content-Transfer-Encoding: 8bit Received: (qmail 1375 invoked by uid 10001); 17 Dec 2002 13:13:57 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from post.thorcom.com (193.82.116.70) by marstons.services.quay.plus.net with SMTP; 17 Dec 2002 13:13:57 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.10) id 18OHXA-0003CT-00 for rsgb_lf_group-outgoing@blacksheep.org; Tue, 17 Dec 2002 13:13:16 +0000 Received: from [134.58.10.57] (helo=mail3.cc.kuleuven.ac.be) by post.thorcom.com with esmtp (Exim 4.10) id 18OHXA-0003CE-00 for rsgb_lf_group@blacksheep.org; Tue, 17 Dec 2002 13:13:16 +0000 Received: from dell-rik.fys.kuleuven.ac.be (pc-10-33-165-177.fys.kuleuven.ac.be [10.33.165.177]) by mail3.cc.kuleuven.ac.be (8.12.1/8.12.1) with ESMTP id gBHDCj2L051220 for ; Tue, 17 Dec 2002 14:12:45 +0100 Message-ID: <5.1.0.14.0.20021217141612.02c7cbc8@pb623250.kuleuven.be> X-Sender: pb623250@pb623250.kuleuven.be X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Tue, 17 Dec 2002 14:19:39 +0100 To: rsgb_lf_group@blacksheep.org From: "Rik Strobbe" In-reply-to: <003901c2a5b1$cd847680$4d6a0450@oemcomputer> References: MIME-Version: 1.0 Subject: Re: LF: EARTH RESISTANCE Content-Type: text/plain; charset=us-ascii; format=flowed X-Spam-Status: No, hits=-2.1 required=5.0tests=EMAIL_ATTRIBUTION,IN_REP_TO,REFERENCES,SPAM_PHRASE_00_01version=2.42 Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group At 09:50 17/12/2002 +0000, you wrote: >Has anyone measured earth resistance alone under different conditions? If I >recall correctly, this can be done with three earth stakes and Kirchoff's >laws. > >Mike, G3XDV I am wondering about that for years now. Apart from the fact that the measurement will be frequency dependent I would expect that it also depends on how deep the stakes are driven into the soil (maybe unless you have a uniform soil). Anyone ever tried this (with or without success) at frequencies of 136kHz (or 180kHz) ? 73, Rik ON7YD