Return-Path: Received: (qmail 18843 invoked from network); 29 Apr 1999 23:26:00 +0100 Received: from magnet.plus.net.uk (HELO magnet.force9.net) (195.166.128.26) by guiness.force9.net with SMTP; 29 Apr 1999 23:26:00 +0100 Received: (qmail 18526 invoked from network); 29 Apr 1999 22:26:47 -0000 Received: from post.thorcom.com (194.75.130.70) by magnet.plus.net.uk with SMTP; 29 Apr 1999 22:26:47 -0000 Received: from troy.blacksheep.org ([194.75.183.50] ident=root) by post.thorcom.com with esmtp (Exim 2.04 #3) id 10cz99-000152-01; Thu, 29 Apr 1999 23:19:07 +0100 Received: (from root@localhost) by troy.blacksheep.org (8.6.12/8.6.12) id WAA22286 for rsgb_lf_group-outgoing; Thu, 29 Apr 1999 22:17:32 GMT Received: from post.thorcom.com (root@post.unica.co.uk [194.75.183.70]) by troy.blacksheep.org (8.6.12/8.6.12) with ESMTP id WAA22281 for ; Thu, 29 Apr 1999 22:17:29 GMT Received: from mashie.force9.net ([195.166.128.30]) by post.thorcom.com with smtp (Exim 2.04 #3) id 10cz6v-00012n-00 for rsgb_lf_group@blacksheep.org; Thu, 29 Apr 1999 23:16:49 +0100 Received: (qmail 6415 invoked from network); 29 Apr 1999 22:17:54 -0000 Received: from relay3.force9.net (HELO relay2.force9.net) (195.166.128.25) by mashie.force9.net with SMTP; 29 Apr 1999 22:17:54 -0000 Received: (qmail 20080 invoked from network); 29 Apr 1999 22:11:43 -0000 Received: from unknown (HELO prstesv1) (212.56.94.182) by relay3.force9.net with SMTP; 29 Apr 1999 22:11:43 -0000 Message-ID: <006101be928e$482ef1c0$0600a8c0@prstesv1.prestel.co.uk> From: "Dave" To: rsgb_lf_group@blacksheep.org Subject: Re: LF: Re: Weekend report 24/25 April Date: Thu, 29 Apr 1999 23:18:13 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.1 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org Chaps.. I have tried sucking some RF off the mains by connecting the primary of a small transformer from the mains supply down to earth via a 22nF capacitor. The secondary was then used to feed into the receiver in the hope of cancelling Mains-bourne intereference. Unfortunately the interference I picked up from the mains seemed to be primarily that from my own house which I can cure myself! The stuff from other sources didn't seem to be present on my own mains supply... This obviously depends on the individual situation but it didn't work for me. Good luck anyway! Dave G3YXM. >> As most of this local qrm seems to be borne on the mains wiring has anyone >> tried taking a signal directly from the mains rather than from a separate >> "noise antenna"? >> >> Mike ZL4OL >> > >I will certainly try this, though I think the TV and games machine >QRM is radiated by the TV antenna coax outer. Making a crude >braid breaker (100pF in series with each leg of the coax) fixed the >S5 QRM from my own TV.