Return-Path: Received: (qmail 11111 invoked from network); 24 Jan 2001 12:54:50 -0000 Received: from unknown (HELO murphys-inbound.servers.plus.net) (212.159.14.225) by excalibur.plus.net with SMTP; 24 Jan 2001 12:54:50 -0000 Received: (qmail 4755 invoked from network); 24 Jan 2001 12:49:04 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys with SMTP; 24 Jan 2001 12:49:04 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.16 #1) id 14LPEr-0006uT-00 for rsgb_lf_group-outgoing@blacksheep.org; Wed, 24 Jan 2001 12:41:25 +0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from [213.2.16.106] (helo=rsgb.org.uk) by post.thorcom.com with esmtp (Exim 3.16 #1) id 14LPEq-0006uO-00 for rsgb_lf_group@blacksheep.org; Wed, 24 Jan 2001 12:41:24 +0000 Received: from miked by rsgb.org.uk with SMTP (MDaemon.v2.8.7.5.R) for ; Wed, 24 Jan 2001 12:32:32 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 From: "Mike Dennison" To: rsgb_lf_group@blacksheep.org Date: Wed, 24 Jan 2001 12:32:28 -0000 MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 8bit Subject: Re: LF: RE: Larry's signals last night 22/23 Jan Message-ID: <3A6ECB5C.31360.BD3A96@localhost> In-reply-to: <65AECDF1F89AD411900400508BFC869F0D754E@pdw-mail-1.dera.gov.uk> X-Mailer: Pegasus Mail for Win32 (v3.12c) X-MDaemon-Deliver-To: rsgb_lf_group@blacksheep.org X-Return-Path: miked@mail.rsgbhq Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: G4JNT wrote: > I agree with the best times, certainly after 0700z signals rise and > noise levels fall. In fact, most mornings I see a quite abrupt drop > in noise level a bit before 0700, well before streetlights go off. > Haven't been able to identify the source of this noise change so far. > Also short lived periods during the night. My experience is that SMPSUs are noisier when the equipment is in 'standby' (can any of the clever chaps here explain?) so the decrease at 0700 could be people switching on TVs, viedo recorders etc. Mike, G3XDV (IO91VT) http://www.lf.thersgb.net