Return-Path: Received: (qmail 19589 invoked from network); 26 Nov 2002 16:29:08 -0000 Received: from warrior.services.quay.plus.net (212.159.14.227) by mailstore with SMTP; 26 Nov 2002 16:29:08 -0000 Content-Transfer-Encoding: 8bit Received: (qmail 6834 invoked from network); 26 Nov 2002 16:29:04 -0000 X-Priority: 3 Received: from post.thorcom.com (193.82.116.70) by warrior.services.quay.plus.net with SMTP; 26 Nov 2002 16:29:04 -0000 X-MSMail-Priority: Normal X-SQ: A X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from majordom by post.thorcom.com with local (Exim 4.10) id 18GiZU-0008AW-00 for rsgb_lf_group-outgoing@blacksheep.org; Tue, 26 Nov 2002 16:28:24 +0000 Received: from [212.125.75.12] (helo=mail4.messagelabs.com) by post.thorcom.com with smtp (Exim 4.10) id 18GiZU-0008AN-00 for rsgb_lf_group@blacksheep.org; Tue, 26 Nov 2002 16:28:24 +0000 X-VirusChecked: Checked X-Env-Sender: William.Ashlock@edwards.boc.com X-Msg-Ref: server-9.tower-4.messagelabs.com!1038328099!18222 Received: (qmail 27173 invoked from network); 26 Nov 2002 16:28:19 -0000 Received: from unknown (HELO ukfw1.ge.boc.com) (193.131.2.157) by server-9.tower-4.messagelabs.com with SMTP; 26 Nov 2002 16:28:19 -0000 Received: from z-160-100-160-136.est.ibm.com ([160.100.160.136]) by ukfw1.ge.boc.com; Tue, 26 Nov 2002 16:28:15 +0000 (GMT) Received: from exc_wil04.edwards.boc.com ([162.118.144.226]) by exc_cra03.edwards.boc.com with SMTP (Microsoft Exchange Internet Mail Service Version 5.5.2653.13) id TP3FSGK9; Tue, 26 Nov 2002 16:31:51 -0000 Received: by EXC_WIL04 with Internet Mail Service (5.5.2653.19) id ; Tue, 26 Nov 2002 11:28:15 -0500 Message-ID: From: "Ashlock,William" To: rsgb_lf_group@blacksheep.org Date: Tue, 26 Nov 2002 11:28:08 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Subject: RE: LF: loop antenna Content-Type: text/plain; charset=iso-8859-1; format=flowed X-Spam-Status: No, hits=0.7 required=5.0tests=EXCHANGE_SERVER,INVALID_MSGID,SPAM_PHRASE_00_01version=2.42 Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group John A. says: >Last winter, when I ran the 50ft perimeter loop, I found that laying out several 40 >foot strips of chicken wire made no difference on the impedance bridge >readings. That antenna was 15 meters in circumference, done with a cage of >four #8 wires spaced about 10 cm on centers. Do you know what the resistive component of that bridge measurement was? I should be able calculate the Rac for those conductors based on skin effect and proximity effect. Also, what was the height above ground for this loop? Thanks, Bill A _____________________________________________________________________ This e-mail has been scanned for viruses by the WorldCom Internet Managed Scanning Service - powered by MessageLabs. For further information visit http://www.worldcom.com