Return-Path: Received: (qmail 13451 invoked from network); 19 Jan 2001 17:37:50 -0000 Received: from unknown (HELO murphys-inbound.servers.plus.net) (212.159.14.225) by extortion.plus.net with SMTP; 19 Jan 2001 17:37:50 -0000 Received: (qmail 18003 invoked from network); 19 Jan 2001 17:40:34 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys with SMTP; 19 Jan 2001 17:40:34 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.16 #1) id 14JfNv-0001UY-00 for rsgb_lf_group-outgoing@blacksheep.org; Fri, 19 Jan 2001 17:31:35 +0000 Received: from mta01-svc.ntlworld.com ([62.253.162.41]) by post.thorcom.com with esmtp (Exim 3.16 #1) id 14JfNu-0001UT-00 for rsgb_lf_group@blacksheep.org; Fri, 19 Jan 2001 17:31:34 +0000 Received: from compaq ([62.253.89.73]) by mta01-svc.ntlworld.com (InterMail vM.4.01.02.27 201-229-119-110) with SMTP id <20010119173123.VGQX6427.mta01-svc.ntlworld.com@compaq> for ; Fri, 19 Jan 2001 17:31:23 +0000 Message-ID: <015c01c0823d$a5506820$4959fd3e@compaq> From: "tracey.gardner" To: rsgb_lf_group@blacksheep.org Subject: LF: Mains Borne Noise Date: Fri, 19 Jan 2001 16:42:24 -0000 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 4.72.3110.5 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Has anybody on the list got a "whole house" mains filter installed at their QTH? With regard to Rik's comments on mains borne noise. I'm in the middle of self-building a house and I'm considering installing a 250v 100A single phase filter on the mains supply input. RS market one produced by Roxburgh Electronics but it is priced at well over £400! Ideally I'd like to find either a less expensive one or a secondhand one, has anybody got any ideas on sources? 73s Tracey >I found out that the major source of QRN were the mains (220V) that >seems to act as a huge antenna. > >73, Rik ON7YD > >