Return-Path: Received: from rly-df12.mx.aol.com (rly-df12.mail.aol.com [172.19.156.25]) by air-df04.mail.aol.com (v121_r2.12) with ESMTP id MAILINDF041-59448b654e32db; Thu, 28 Aug 2008 03:34:08 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-df12.mx.aol.com (v121_r2.11) with ESMTP id MAILRELAYINDF123-59448b654e32db; Thu, 28 Aug 2008 03:33:59 -0400 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1KYc0K-0001ec-9N for rs_out_1@blacksheep.org; Thu, 28 Aug 2008 08:33:16 +0100 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1KYc0J-0001eT-SF for rsgb_lf_group@blacksheep.org; Thu, 28 Aug 2008 08:33:15 +0100 Received: from cavuit01.kulnet.kuleuven.be ([134.58.240.43]) by relay3.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1KYc0D-0000yK-Qu for rsgb_lf_group@blacksheep.org; Thu, 28 Aug 2008 08:33:15 +0100 Received: from smtps02.kuleuven.be (smtpshost02.kulnet.kuleuven.be [134.58.240.75]) by cavuit01.kulnet.kuleuven.be (Postfix) with ESMTP id 057A07B921E for ; Thu, 28 Aug 2008 09:32:56 +0200 (CEST) Received: from smtps02.kuleuven.be (localhost [127.0.0.1]) by smtps02.kuleuven.be (Postfix) with ESMTP id BB279F3863 for ; Thu, 28 Aug 2008 09:32:55 +0200 (CEST) Received: from dell-rik.fys.kuleuven.be (dhcp-10-33-85-199.fys.kuleuven.be [10.33.85.199]) by smtps02.kuleuven.be (Postfix) with ESMTP id A00DFF3862 for ; Thu, 28 Aug 2008 09:32:55 +0200 (CEST) X-Mailer: QUALCOMM Windows Eudora Version 7.1.0.9 Date: Thu, 28 Aug 2008 09:33:12 +0200 To: rsgb_lf_group@blacksheep.org X-Kuleuven: This mail passed the K.U.Leuven mailcluster From: Rik Strobbe In-Reply-To: References: <20080826215353.05fced57@lurcher.twatt.local> <48B4F663.50303@telia.com> <20080827074721.CC39131E702@smtps01.kuleuven.be> Mime-Version: 1.0 Message-Id: <20080828073255.A00DFF3862@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: Re: LF: QRV on 500 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=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-AOL-IP: 193.82.116.20 X-AOL-SCOLL-AUTHENTICATION: listenair ; SPF_helo : n X-AOL-SCOLL-AUTHENTICATION: listenair ; SPF_822_from : n At 20:08 27/08/2008, you wrote: >Nice to see you have the Good and the Bad , > >That just leaves us with the 'Ugly' .... ! > >You using the main ae for rx ? perhaps a small loop would be better ? Yes, and normally this is no problem (a 20dB attenuator takes care of all IM problems). I have a small portable loop that can be tuned to 500kHz and QRM is as band as on the big antenna unless I null it out with the loop. Unfortunately the null is east-west so when nulling out the QRM source I null out south UK too ... Last night I took a portable AM radio to locate the QRM source and found out that it was a 12V dc "electronic transformer", also running quite hot. It has been there also in May (when I didn't have that QRM) so it must have gone faulty some way since then. I am going to replace it by a good old fashioned 12V dc power supply. 73, Rik Disclaimer: http://www.kuleuven.be/cwis/email_disclaimer.htm