X-GM-THRID: 1237155662097393671 X-Gmail-Labels: rsgb lf Delivered-To: daveyxm@gmail.com Received: by 10.78.172.1 with SMTP id u1cs272741hue; Tue, 22 May 2007 07:19:41 -0700 (PDT) Received: by 10.67.119.9 with SMTP id w9mr622520ugm.1179843580479; Tue, 22 May 2007 07:19:40 -0700 (PDT) Return-Path: Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mx.google.com with ESMTP id b35si1729845ugd.2007.05.22.07.19.37; Tue, 22 May 2007 07:19:40 -0700 (PDT) Received-SPF: neutral (google.com: 193.82.116.20 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) DomainKey-Status: bad (test mode) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1HqV9X-0006sk-3L for rs_out_1@blacksheep.org; Tue, 22 May 2007 15:15:55 +0100 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1HqV9W-0006sb-EY for rsgb_lf_group@blacksheep.org; Tue, 22 May 2007 15:15:54 +0100 Received: from an-out-0708.google.com ([209.85.132.245]) by relay3.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1HqV9U-0000e4-I6 for rsgb_lf_group@blacksheep.org; Tue, 22 May 2007 15:15:53 +0100 Received: by an-out-0708.google.com with SMTP id c36so479808ana for ; Tue, 22 May 2007 07:15:51 -0700 (PDT) DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=googlemail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:mime-version:content-type; b=iUZsPcY7SBvf8YKtE/yCo88svFxrdbTgAssdD/iTL3or8ywdt0pij+hTTT97Rl7fRcIW8HgxBCARrr/q5DPXwraC4YBwigvmuBQcYN0kSkUSTk6e6Zu2gohoPdfkLJGi4/ZhxsehPG+n61pghvbMJu2DQyOEt3R0KEDtKSK1P+k= DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=beta; h=received:message-id:date:from:to:subject:mime-version:content-type; b=NfaDP401JqoiuEri7SFodo68jv0aBKPDdSRU6r6wsAGtfhF3Mi9U3DR/3unwfRcshRR9pW5HVSZRpD5cPiNOOTRik1tbz3ozQ8tWQym/+WIZ3R/Gre4P5TjyBWIJv4+J+HOIKXGqWcdxaSLdPZgG80CSHMEzhJuxrwveYLCiVIc= Received: by 10.100.141.13 with SMTP id o13mr3887773and.1179843351341; Tue, 22 May 2007 07:15:51 -0700 (PDT) Received: by 10.100.107.11 with HTTP; Tue, 22 May 2007 07:15:51 -0700 (PDT) Message-ID: <88d2415e0705220715u327d7c9ar38fed036271fcdf7@mail.gmail.com> Date: Tue, 22 May 2007 15:15:51 +0100 From: "lawrence mayhead" To: rsgb MIME-Version: 1.0 DomainKey-Status: good (testing) X-Spam-Score: 0.6 (/) X-Spam-Report: autolearn=disabled,HTML_00_10=0.642,HTML_MESSAGE=0.001 Subject: LF: 500kHz Distance Content-Type: multipart/alternative; boundary="----=_Part_86012_20576132.1179843351221" 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=HTML_MESSAGE 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: 2865 ------=_Part_86012_20576132.1179843351221 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline I am very encouraged by the response to my comments on our erp limit. Regarding ground loss, the best way to reduce this is not to bury wire in the ground but to put it in the air ! 1 metre of wire in the air is worth 10 in the ground, and it does'nt have to be in a straight line either just so long as it covers new ground as it were. My 136 now 500kHz ant has 600 feet of top load in 3 zig zags and I get about 30 ohms resistance on 136 and about 15 ohms on 500. So I dont need many watts to get 0.5 amps int the vert section. 73 Laurie G3AQC ------=_Part_86012_20576132.1179843351221 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline I am very encouraged by the response to my comments on our
erp limit.
Regarding ground loss, the best way to reduce this is not to bury
wire in the ground but to put it in the air !  1 metre of wire in the air
is worth 10 in the ground, and it does'nt have to be in a straight line
either just so long as it covers new ground as it were. My 136 now
500kHz ant has 600 feet of top load in 3 zig zags and I get about 30
ohms resistance on 136 and about 15 ohms on 500. So I dont need
many watts to get  0.5 amps int the vert section.
73 Laurie G3AQC
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