Return-Path: <majordom@post.thorcom.com> Received: (qmail 1433 invoked from network); 14 Apr 2000 15:13:18 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by grants.core.plus.net.uk with SMTP; 14 Apr 2000 15:13:18 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.02 #1) id 12g7fJ-00010v-00 for rsgb_lf_group-outgoing@blacksheep.org; Fri, 14 Apr 2000 16:05:49 +0100 Received: from ds9.sci.fi ([195.74.0.54]) by post.thorcom.com with esmtp (Exim 3.02 #1) id 12g7fH-00010q-00 for rsgb_lf_group@blacksheep.org; Fri, 14 Apr 2000 16:05:47 +0100 Content-Transfer-Encoding: 8bit Received: from default (MKLXXVI.hdyn.saunalahti.fi [195.197.165.176]) by ds9.sci.fi (8.9.1/8.9.1) with SMTP id SAA12840 for <rsgb_lf_group@blacksheep.org>; Fri, 14 Apr 2000 18:05:32 +0300 (EET DST) X-Priority: 3 X-MSMail-Priority: Normal Message-ID: <3.0.6.32.20000414180555.0086a830@pop.saunalahti.fi> X-Sender: oh2lx@pop.saunalahti.fi X-Mailer: QUALCOMM Windows Eudora Light Version 3.0.6 (32) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Date: Fri, 14 Apr 2000 18:05:55 +0300 To: rsgb_lf_group@blacksheep.org From: =?iso-8859-1?Q?V=E4in=F6_Lehtoranta?= <vaiski@dlc.fi> Subject: Re: LF: LOC G3WSC/P In-reply-to: <E12g3bn-0004Fz-00@mserv1b.u-net.net> References: <38F476A8.1FB10252@netscapeonline.co.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: <majordom@post.thorcom.com> Actually no reason to interfere in these discussions, but as late as in 1960's, I unambiguously refused to believe that measuring pure ground wave field strength can be so demanding, (not to talk about pure single or mixed sky-wave component). In the case below there appear to be several possibilities: 1. The "real EMRP" is not the same (very probable), 2. The "path loss" G3WSC/P-G3KEV is greater, ie so called "effective electrical path conductivity" is smaller, also, during winter time there is no "pure" ground wave on a 300 km long (ground) path, not even during daylight, the local path here: OH1TN-OH2LX (152km) is an example, 3. Mal's receiving installation has some "directivity", 4. Mal's "measurements" are not reliable enough (sorry...) 73 de Vaino, OH2LX At 11:32 14.4.2000 +0100, Malcom wrote: > >> G3KEV- IO94SH ---------G3WSC/P- IO91XS--------AZ 175, DISTANCE 287.3 Kms >> >> G3KEV- IO94SH -------- MM0ALM- IO87UA--------AZ 340, DISTANCE 320.8 Kms >> >> MM0ALM is 2db stronger >> de G3KEV/SCARBOROUGH. > >So, if both MM0ALM and G3WSC were running 1W ERP, this >completely destroys the argument that higher antennas >always work better for the same ERP! > >Mike, G3XDV (IO91VT) >http://www.dennison.demon.co.uk/activity.htm ---------------------------------------------------------- V.K.Lehtoranta, OH2LX, POBox 50, FIN-05401 Jokela, Finland ------ Tel: +358-9-4173965 ---- Fax: +358-9-4173961 ------ E-mail: vaiski@dlc.fi - alias: oh2lx@dlc.fi & oh2lx@sral.fi