X-GM-THRID: 1235011097765982642 X-Gmail-Labels: rsgb lf Delivered-To: daveyxm@gmail.com Received: by 10.35.22.5 with SMTP id z5cs354852pyi; Sat, 28 Apr 2007 15:12:44 -0700 (PDT) Received: by 10.67.115.19 with SMTP id s19mr4093354ugm.1177798364273; Sat, 28 Apr 2007 15:12:44 -0700 (PDT) Return-Path: Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mx.google.com with ESMTP id 30si3676846ugf.2007.04.28.15.12.42; Sat, 28 Apr 2007 15:12:44 -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 1Hhv6i-0005Zc-QF for rs_out_1@blacksheep.org; Sat, 28 Apr 2007 23:09:32 +0100 Received: from [193.82.59.130] (helo=relay2.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Hhv6i-0005ZT-9v for rsgb_lf_group@blacksheep.org; Sat, 28 Apr 2007 23:09:32 +0100 Received: from smtp809.mail.ird.yahoo.com ([217.146.188.69]) by relay2.thorcom.net with smtp (Exim 4.63) (envelope-from ) id 1Hhv6h-0003WO-8u for rsgb_lf_group@blacksheep.org; Sat, 28 Apr 2007 23:09:32 +0100 Received: (qmail 27254 invoked from network); 28 Apr 2007 22:09:25 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=btinternet.com; h=Received:X-YMail-OSG:Message-ID:From:To:References:Subject:Date:MIME-Version:Content-Type:Content-Transfer-Encoding:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE; b=ogxJtCh2ba6HbKOR0PKIGUMeM5+1vSHT4vUNOLmiwMbr5qGqTu4P2w8hEvryXcuAiCTCIQ9wT8861NBch6Py8ahcZ9LuUSuOcH0fPZRBrafk6ka/mJRJgtBY8biQPKRfqh3fu7KvyRPa7rCjlqpPKy+EzcFR7njW9lrJK4sLbiE= ; Received: from unknown (HELO lark) (alan.melia@btinternet.com@213.122.3.61 with login) by smtp809.mail.ird.yahoo.com with SMTP; 28 Apr 2007 22:09:25 -0000 X-YMail-OSG: hs7w5eQVM1mYGcgLsl2AzcaRopls1FKvCIoFWH5shECbXndlyJB8WRK3ihxSmCvhhlKT6YUCQA-- Message-ID: <008a01c789e1$e5945920$0300a8c0@lark> From: "Alan Melia" To: References: <292396.501.qm@web86404.mail.ird.yahoo.com> Date: Sat, 28 Apr 2007 23:07:59 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2615.200 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2615.200 DomainKey-Status: good (testing) X-Spam-Score: -0.4 (/) X-Spam-Report: autolearn=disabled,AWL=-0.416 Subject: LF: Re: Front panel lettering ? Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit 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=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 Status: O X-Status: X-Keywords: X-UID: 2386 Hi again Chris yes that how to do it. It is somewhat easier to use a loop which is easier to calculate the output from a given field strength....Jim is the expert at that !! He has done many measurements on 136khz. Dick Rollema has built units for both methods. I am not sure whether they are written up. One may be on the LWCA site. Alan snip............. > Shoot me down in flames but can't one make an RF probe to measure the volts per metre at a set distance from the aerial and then work back to deduce the radiated power ?? > > 73 Chris G3XIZ