Return-Path: Received: from mtain-da07.r1000.mx.aol.com (mtain-da07.r1000.mx.aol.com [172.29.64.79]) by air-dc06.mail.aol.com (v126.13) with ESMTP id MAILINDC063-86524b69334e164; Wed, 03 Feb 2010 03:26:54 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-da07.r1000.mx.aol.com (Internet Inbound) with ESMTP id 0D782380000E1; Wed, 3 Feb 2010 03:26:52 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1NcaYX-0001kf-5U for rs_out_1@blacksheep.org; Wed, 03 Feb 2010 08:25:49 +0000 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1NcaYW-0001kW-Mb for rsgb_lf_group@blacksheep.org; Wed, 03 Feb 2010 08:25:48 +0000 Received: from cavuit02.kulnet.kuleuven.be ([134.58.240.44]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1NcaYT-0005Kr-VI for rsgb_lf_group@blacksheep.org; Wed, 03 Feb 2010 08:25:48 +0000 Received: from smtps02.kuleuven.be (smtpshost02.kulnet.kuleuven.be [134.58.240.75]) by cavuit02.kulnet.kuleuven.be (Postfix) with ESMTP id 822BE51C004 for ; Wed, 3 Feb 2010 09:25:23 +0100 (CET) Received: from PC_van_Rik.fys.kuleuven.be (dhcp-10-33-85-106.fys.kuleuven.be [10.33.85.106]) by smtps02.kuleuven.be (Postfix) with ESMTP id 6D257F3862 for ; Wed, 3 Feb 2010 09:25:23 +0100 (CET) X-Mailer: QUALCOMM Windows Eudora Version 7.1.0.9 Date: Wed, 03 Feb 2010 09:25:36 +0100 To: "rsgb_lf_group@blacksheep.org" X-Kuleuven: This mail passed the K.U.Leuven mailcluster From: Rik Strobbe In-Reply-To: <00a101caa471$beaf7530$1bb2a8c0@vp2fc459c0ffcf> References: <12077821.1264946261487.JavaMail.root@wamui-cynical.atl.sa.earthlink.net> <38A51B74B884D74083D7950AD0DD85E82A1ACF@File-Server-HST.hst.e-technik.tu-darmstadt.de> <4C25D51A6FE646D5B8D9D37C87EA6BBC@lindavideo> <02E3EF3F48994AB88A1489042CE7EA02@JimPC> <284438.50947.qm@web87001.mail.ird.yahoo.com> <38A51B74B884D74083D7950AD0DD85E82A1AD5@File-Server-HST.hst.e-technik.tu-darmstadt.de> <00a101caa471$beaf7530$1bb2a8c0@vp2fc459c0ffcf> Mime-Version: 1.0 Message-Id: <20100203082523.6D257F3862@smtps02.kuleuven.be> X-KULeuven-Information: Katholieke Universiteit Leuven X-KULeuven-Scanned: Found to be clean X-KULeuven-Envelope-From: rik.strobbe@fys.kuleuven.be X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: LF: QRP on 500kHz Content-Type: text/plain; charset="us-ascii"; format=flowed 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=TO_ADDRESS_EQ_REAL 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-aol-global-disposition: G x-aol-sid: 3039ac1d404f4b69334c7ca4 X-AOL-IP: 193.82.116.20 In the past I had noticed that my antenna detuned several kHz during rain. As it was raining last night (not a bit) I took the chance to do some antenna measurements using low power (25W input, about 15W output). Due to the bad SWR the antenna current was only 0.3A, estimated ERP about 20mW. At one moment I unintentionally started a CQ instead of giving a carrier (hitting the wrong button on the keyer) but decided to let it run while noting the measurement results in my "lab book". To my surprise I was called by Finbar (EI0CF) and had a nice QSO with him, receiving a 559 report. Condx on 500 last night seemed average to me. Conclusion: with a few Watt in a modest antenna (lazy-L, 11m high and 25m long) one can work 1000km (or more) in CW on 500kHz. 73, Rik ON7YD - OR7T