X-GM-THRID: 1240521648484349807 X-Gmail-Labels: rsgb lf Delivered-To: daveyxm@gmail.com Received: by 10.78.172.10 with SMTP id u10cs179472hue; Thu, 28 Jun 2007 11:00:37 -0700 (PDT) Received: by 10.78.204.1 with SMTP id b1mr1063470hug.1183053637609; Thu, 28 Jun 2007 11:00:37 -0700 (PDT) Return-Path: Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mx.google.com with ESMTP id d24si6780199nfh.2007.06.28.11.00.29; Thu, 28 Jun 2007 11:00:37 -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) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1I3yFM-0003Mr-Jm for rs_out_1@blacksheep.org; Thu, 28 Jun 2007 18:57:36 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1I3yFM-0003Mi-5D for rsgb_lf_group@blacksheep.org; Thu, 28 Jun 2007 18:57:36 +0100 Received: from smtp809.mail.ird.yahoo.com ([217.146.188.69]) by relay1.thorcom.net with smtp (Exim 4.63) (envelope-from ) id 1I3yFJ-0005mq-G2 for rsgb_lf_group@blacksheep.org; Thu, 28 Jun 2007 18:57:36 +0100 Received: (qmail 66340 invoked from network); 28 Jun 2007 17:57:27 -0000 Received: from unknown (HELO Dave) (dsergeant@btinternet.com@81.157.212.26 with login) by smtp809.mail.ird.yahoo.com with SMTP; 28 Jun 2007 17:57:27 -0000 X-YMail-OSG: TeGnkwcVM1nxkgTLXdSmDobIi82DmNgozkVhvkh4VWbrBQ_r8bOM8iws3EskFH.Sy5hphOL0eYkckUuwQEVLKy7XR6x3MGB5eMnw9PBJGIVBL2dW From: "Dave Sergeant" To: rsgb_lf_group@blacksheep.org Date: Thu, 28 Jun 2007 18:57:28 +0100 MIME-Version: 1.0 Message-ID: <46840498.12577.2B2FDAD@dave.davesergeant.com> X-mailer: Pegasus Mail for Windows (4.41) Content-description: Mail message body X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: LF: (500) G3OLB and antenna measurements Content-type: text/plain; charset=US-ASCII 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: 1224 Coming in fine in Bracknell Tom on 502.6. 569 peaking 579. Recording at http://my.opera.com/davews/blog/2007/06/05/500khz-recordings Been looking again at my antenna impedance today. I have optimised and calibrated my G3LDO 3-meter impedance meter and now can make fairly accurate measurements sitting in the shack at the other end of my 22m of coax. I now know that the antenna resonates at 492kHz and has a resistive impedance of 26ohms there. If the weather holds off I shall be doing a few 'tweaks' over the next few days. 73 Dave G3YMC http://www.davesergeant.com