Return-Path: Received: (qmail 34889 invoked from network); 24 Mar 2005 19:28:38 -0000 Received: from unknown (HELO ptb-spamcore02.plus.net) (192.168.71.3) by ptb-mailstore02.plus.net with SMTP; 24 Mar 2005 19:28:38 -0000 Received: from mailnull by ptb-spamcore02.plus.net with spamcore-l-b (Exim 4.32; FreeBSD) id 1DEY5x-000LqW-95 for dave@picks.force9.co.uk; Thu, 24 Mar 2005 19:34:17 +0000 Received: from [192.168.67.2] (helo=ptb-mxcore02.plus.net) by ptb-spamcore02.plus.net with esmtp (Exim 4.32; FreeBSD) id 1DEY5w-000LqM-Hf for dave@picks.force9.co.uk; Thu, 24 Mar 2005 19:34:16 +0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1DEY0T-0006d9-5n for dave@picks.force9.co.uk; Thu, 24 Mar 2005 19:28:37 +0000 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1DEY0C-0003ER-Qw for rs_out_1@blacksheep.org; Thu, 24 Mar 2005 19:28:20 +0000 Received: from [193.82.116.30] (helo=relay.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1DEY0C-0003EI-45 for rsgb_lf_group@blacksheep.org; Thu, 24 Mar 2005 19:28:20 +0000 Received: from smtpout01-04.mesa1.secureserver.net ([64.202.165.79]) by relay.thorcom.net with smtp (Exim 4.43) id 1DEY0A-0001F4-Ga for rsgb_lf_group@blacksheep.org; Thu, 24 Mar 2005 19:28:20 +0000 Received: (qmail 22305 invoked from network); 24 Mar 2005 19:28:14 -0000 Received: from unknown (208.37.242.34) by smtpout01-04.mesa1.secureserver.net (64.202.165.79) with ESMTP; 24 Mar 2005 19:28:14 -0000 Message-ID: <002b01c530a8$c4345490$af01a8c0@JKA> From: "John Andrews" To: rsgb_lf_group@blacksheep.org References: <000501c530a5$48c90d80$2102000a@ibm> Date: Thu, 24 Mar 2005 14:36:24 -0500 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1437 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441 X-SPF-Result: relay.thorcom.net: 64.202.165.79 is neither permitted nor denied by domain of w1tag.com X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=failed,none Subject: LF: Re: How to measure antenna current? Content-Type: text/plain; charset=iso-8859-1; 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=0.0 required=5.0 tests=none 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) Dick, > In this list I often see people mentioning which antennacurrent they are > running. > I wonder how to get these values. > Measuring voltage across an resistor? What about number of turns in the coil > etc? Some possibilities: http://www.w1tag.com/RFA.htm http://www.computerpro.com/~lyle/currprob/currprob.htm John Andrews, W1TAG/WD2XES