Return-Path: Received: (qmail 24726 invoked from network); 1 Apr 2003 19:58:54 -0000 Received: from marstons.services.quay.plus.net (212.159.14.223) by mailstore with SMTP; 1 Apr 2003 19:58:54 -0000 Received: (qmail 819 invoked by uid 10001); 1 Apr 2003 19:58:53 -0000 Received: from post.thorcom.com (193.82.116.70) by marstons.services.quay.plus.net with SMTP; 1 Apr 2003 19:58:53 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.14) id 190Rt8-0001rZ-9s for rsgb_lf_group-outgoing@blacksheep.org; Tue, 01 Apr 2003 20:57:42 +0100 Received: from [194.73.73.93] (helo=rhenium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 190Rsw-0001rQ-46 for rsgb_lf_group@blacksheep.org; Tue, 01 Apr 2003 20:57:32 +0100 Received: from host213-122-117-99.in-addr.btopenworld.com ([213.122.117.99] helo=acer5gi5q0ubzj) by rhenium.btinternet.com with smtp (Exim 3.22 #23) id 190Rst-0005tc-00 for rsgb_lf_group@blacksheep.org; Tue, 01 Apr 2003 20:57:28 +0100 From: "John W Gould" To: "Rsgb_Lf_Group@Blacksheep.Org" Date: Tue, 1 Apr 2003 20:57:29 +0100 Message-ID: MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.6604 (9.0.2911.0) Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re 73kHz Tuesday Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=-5.7 required=5.0tests=MSGID_GOOD_EXCHANGEversion=2.51 X-Spam-Checker-Version: SpamAssassin 2.51 (1.174.2.5-2003-03-20-exp) X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Plenty of activity, with approx sig level above estimated avg noise here in Newport Pagnell: G3AQC 30dB G3LDO 30dB G3XDV 20dB G3GRO 20dB GM0MRF 10dB Saw some other transmissions, but wasn't around at the right time to get callsigns (apologies to G3YXM and MI0AYZ) My normally high noise floor "switched off sometime after 9am, dropping the noise floor down from a stead S9 to a more normal sound, varying around S2 with occasional crashes up to S7. All of the signals above were audible, That of G3AQC and G3LDO moved the S-meter to an S5. My own transmissions were carried out from the house via a 100m length of coax to the loading coil and aerial. Interestingly, last month when the TX was in the shed next to the loading coil I got an aerial current of just under an amp. Today, with two toroidal transformers (to first transform from around 4 ohms to 50ohms, and then from 50 ohms to around 200ohms - a guess at matching the aerial), the aerial current all but disappeared. That might explain why, despite CQs during the morning, afternoon and early evening, I was only heard and worked by G3XDV. Much of the above will no doubt raise knowing smiles from you "old hands", but an interesting day for me and some thoughts as to what to do next. I'd really like to know the source of the noise; it's unlikely to be TVs since it was still quiet at 8pm.... 73 and nice to hear/see the good signals on the band. 73 John, G3WKL