Return-Path: Received: (qmail 10941 invoked from network); 6 Feb 2001 09:21:34 -0000 Received: from unknown (HELO murphys-inbound.servers.plus.net) (212.159.14.225) by extortion.plus.net with SMTP; 6 Feb 2001 09:21:34 -0000 Received: (qmail 23250 invoked from network); 6 Feb 2001 09:24:26 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys with SMTP; 6 Feb 2001 09:24:26 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.16 #1) id 14Q4As-00041Y-00 for rsgb_lf_group-outgoing@blacksheep.org; Tue, 06 Feb 2001 09:12:34 +0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from thick.mail.pipex.net ([158.43.192.95]) by post.thorcom.com with smtp (Exim 3.16 #1) id 14Q4Ap-00041T-00 for rsgb_lf_group@blacksheep.org; Tue, 06 Feb 2001 09:12:31 +0000 Received: (qmail 22597 invoked from network); 6 Feb 2001 09:08:50 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from userck43.uk.uudial.com (62.188.154.85) by smtp-3.dial.pipex.com with SMTP; 6 Feb 2001 09:08:50 -0000 From: "Nick" To: rsgb_lf_group@blacksheep.org Subject: Re: LF: RE: Interference from fluorescent tube Date: Tue, 06 Feb 2001 09:11:20 +0000 Message-ID: References: <65AECDF1F89AD411900400508BFC869F0D759A@pdw-mail-1.dera.gov.uk> In-reply-to: <65AECDF1F89AD411900400508BFC869F0D759A@pdw-mail-1.dera.gov.uk> X-Mailer: Forte Agent 1.8/32.548 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: On Mon, 5 Feb 2001 13:16:31 -0000 , you wrote: > >-----Using my portable field strengh meter as a receiver I found the >culprit to be a fluorescent tube mounted over the dresser in our >kitchen. The noise is already present with the tube switched off and >increases upon switching on. >When I remove the tube the noise disappears. >Cleaning the tube on its outside to remove grease and dirt did not help Is there switch leakage or something? How does it make noise without being powered up? Nick