Return-Path: Received: (qmail 7643 invoked from network); 15 Jun 1999 12:03:24 -0000 Received: from mashie.force9.net (195.166.128.30) by medusa.plus.net.uk with SMTP; 15 Jun 1999 12:03:24 -0000 Received: (qmail 14892 invoked from network); 14 Jun 1999 22:41:27 -0000 Received: from post.thorcom.com (194.75.130.70) by mashie.force9.net with SMTP; 14 Jun 1999 22:41:27 -0000 Received: from troy.blacksheep.org ([194.75.183.50] ident=root) by post.thorcom.com with esmtp (Exim 2.04 #3) id 10terK-0007Fb-00; Mon, 14 Jun 1999 23:05:39 +0100 Received: (from root@localhost) by troy.blacksheep.org (8.6.12/8.6.12) id WAA09742 for rsgb_lf_group-outgoing; Mon, 14 Jun 1999 22:06:12 GMT X-Priority: 3 X-MSMail-Priority: Normal 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 WAA09738 for ; Mon, 14 Jun 1999 22:06:07 GMT Received: from monsoon.dial.pipex.net ([158.43.128.69] helo=monsoon.mail.pipex.net) by post.thorcom.com with smtp (Exim 2.04 #3) id 10ter6-0007FY-00 for rsgb_lf_group@blacksheep.org; Mon, 14 Jun 1999 23:05:24 +0100 Received: (qmail 8269 invoked from network); 14 Jun 1999 22:04:59 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from useri231.uk.uudial.com (194.69.105.95) by smtp.dial.pipex.com with SMTP; 14 Jun 1999 22:04:59 -0000 From: "Nick" To: rsgb_lf_group@blacksheep.org Subject: Re: LF: Noise - latest Date: Mon, 14 Jun 1999 21:59:27 GMT Message-ID: <376a7740.4923697@smtp.dial.pipex.com> References: <000a01beb66f$e86598b0$ab97d28f@kate.geog.le.ac.uk> In-reply-to: <000a01beb66f$e86598b0$ab97d28f@kate.geog.le.ac.uk> X-Mailer: Forte Agent 1.5/32.451 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org On Mon, 14 Jun 1999 15:12:16 +0100, you wrote: >To briefly answer a few points which were raised: >Yes, the poles where the noise peaked are definately telephone poles and >NOT power-line poles Just a wild idea. Have any of your neighbours had 'home highway' (the domestic brand of ISDN installed). BT also have a wonderful little pair of boxes which duplexes two BT lines onto one physical pair of cables. If someone near you has had one fitted depending on the technology used this could increase the noise on the phone lines. Have you looked at the modulation on the noise in a reasonable bandwidth? if it is 50Hz or harmonic related then it is something to do with distribution wiring or appliances, if it is not mains synchronous then it is an appliance of some sort. Good luck Back to lurk mode Nick G4WHO