Return-Path: Received: (qmail 8336 invoked from network); 24 Apr 1999 16:26:05 +0100 Received: from magnus.plus.net.uk (HELO magnus.force9.net) (195.166.128.27) by guiness.force9.net with SMTP; 24 Apr 1999 16:26:05 +0100 Received: (qmail 9007 invoked from network); 24 Apr 1999 15:26:52 -0000 Received: from post.thorcom.com (194.75.130.70) by magnus.plus.net.uk with SMTP; 24 Apr 1999 15:26:52 -0000 Received: from troy.blacksheep.org ([194.75.183.50] ident=root) by post.thorcom.com with esmtp (Exim 2.04 #3) id 10b4IN-0000OG-01; Sat, 24 Apr 1999 16:24:43 +0100 X-Priority: 3 X-MSMail-Priority: Normal Received: (from root@localhost) by troy.blacksheep.org (8.6.12/8.6.12) id PAA26369 for rsgb_lf_group-outgoing; Sat, 24 Apr 1999 15:24:57 GMT 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 PAA26365 for ; Sat, 24 Apr 1999 15:24:54 GMT Received: from ah-img-1.compuserve.com ([149.174.217.154] helo=hpamgaaa.compuserve.com) by post.thorcom.com with esmtp (Exim 2.04 #3) id 10b4I8-0000OC-00 for rsgb_lf_group@blacksheep.org; Sat, 24 Apr 1999 16:24:28 +0100 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: (from mailgate@localhost) by hpamgaaa.compuserve.com (8.8.8/8.8.8/HP-1.3) id LAA16300 for rsgb_lf_group@blacksheep.org; Sat, 24 Apr 1999 11:24:15 -0400 (EDT) Date: Sat, 24 Apr 1999 11:22:52 -0400 From: "'Geri' Kinzel, DK8KW" Subject: LF: Re: Further signals measured (2nd version) To: rsgb_lf_group@blacksheep.org Message-ID: <199904241122_MC2-733F-4014@compuserve.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Disposition: inline Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org Dave, G3YXM wrote: >So even if the calculated erp of two stations is the same we have to consider the surrounding terrain?< yes, Dave, it looks like this might make a difference. My first thought was that only obstacles that are in the magnitude of the wavelength play a role. But it may well be, that a city or a large forest (with all the moisture trapped in the trees) or a lake or something like this makes a difference in how your signal is transferred to the receiving station. I will further investigate, but at least my observations show that your signal is 2 dB stronger here in the East compared to Graham's (I would wish my signal would be a couple of dB stronger, still my ODX is 402 km, which is ON7YD ...). 73 Geri, DK8KW (W1KW) http://www.dk8kw.home.pages.de