Return-Path: Received: (qmail 15109 invoked from network); 22 Jun 1999 13:10:13 +0100 Received: from magnus.plus.net.uk (HELO magnus.force9.net) (195.166.128.27) by guiness.force9.net with SMTP; 22 Jun 1999 13:10:13 +0100 Received: (qmail 8746 invoked from network); 22 Jun 1999 12:09:57 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by magnus.plus.net.uk with SMTP; 22 Jun 1999 12:09:57 -0000 X-Priority: 3 Received: from majordom by post.thorcom.com with local (Exim 3.02 #1) id 10wPCy-0002bj-00 for rsgb_lf_group-outgoing@blacksheep.org; Tue, 22 Jun 1999 12:59:20 +0100 X-MSMail-Priority: Normal Received: from hil-img-8.compuserve.com ([149.174.177.138]) by post.thorcom.com with esmtp (Exim 3.02 #1) id 10wPCw-0002be-00 for rsgb_lf_group@blacksheep.org; Tue, 22 Jun 1999 12:59:19 +0100 Received: (from mailgate@localhost) by hil-img-8.compuserve.com (8.8.6/8.8.6/2.19) id HAA13480 for rsgb_lf_group@blacksheep.org; Tue, 22 Jun 1999 07:59:17 -0400 (EDT) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Date: Tue, 22 Jun 1999 07:59:02 -0400 From: "Holger 'Geri', DK8KW" Subject: LF: Noise-Log To: rsgb_lf_group@blacksheep.org Message-ID: <199906220759_MC2-7A4D-4DA6@compuserve.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Disposition: inline Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org Sender: Hello Lowfers, after a couple of Slow-CW skeds failed in the afternoon or evening, I have logged the background noise level at my QTH throughout a 24-hour period (for details either see http://www.dk8kw.home.pages.de, follow the link "Chart of the background noise" or got directly to http://home.t-online.de/home/dk8kw/noise.htm). The interesting result is, that early at 04.00 UTC (!) is the best time for a sked. Until 10.00 UTC the noise level raised slightly. After 10.00 UTC until 04.00 UTC it is nearly constantly high, so that only strong signals can be detected. I do not know exactly where the noise comes from nor did I yet try to eliminate it by using a directional antenna. However, the sudden fall in background noise just before 04.00 UTC makes it very evident, that it is some kind of men-made nosise. So, again like in real life: the early-bird catches the fly! Cu early in the morning, best 73 Geri, DK8KW (W1KW)