Return-Path: Received: (qmail 26318 invoked from network); 15 Apr 2000 05:04:16 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by teachers.core.plus.net.uk with SMTP; 15 Apr 2000 05:04:16 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.02 #1) id 12gKfG-00037N-00 for rsgb_lf_group-outgoing@blacksheep.org; Sat, 15 Apr 2000 05:58:38 +0100 X-Priority: 3 X-MSMail-Priority: Normal Received: from ds-img-3.compuserve.com ([149.174.206.136] helo=spdmgaac.compuserve.com) by post.thorcom.com with esmtp (Exim 3.02 #1) id 12gKfF-00036k-00 for rsgb_lf_group@blacksheep.org; Sat, 15 Apr 2000 05:58:37 +0100 Received: (from mailgate@localhost) by spdmgaac.compuserve.com (8.9.3/8.9.3/SUN-1.9) id AAA12156; Sat, 15 Apr 2000 00:57:21 -0400 (EDT) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Date: Sat, 15 Apr 2000 00:57:02 -0400 From: "'Geri' Kinzel, DK8KW" Subject: LF: Field Strength G3WSC in DL To: "LF-Reflector" , "amrad" Message-ID: <200004150057_MC2-A147-7F2A@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 X-Listname: rsgb_lf_group Sender: Hello YLs and OMs, I made some field strength measurements of the G3WSC operation as follows: Call ERP as Field Strenght said in QSO ============================================================= G3WSC/p 1 W ERP 19.1 dB microVolt/m G3WSC in QSO yesterday night 13 W ERP 24.1 dB microVolt/m G3WSC Beacon Saturday morning ? 34.1 dB microVolt/m at a distance of 697 km as comparison 7S6SAJ ? 41.6 dB microVolt/m at a distance of 737 km. (to compare with other signals on my homepage: add 108.1 dB to the dBu values shown in the table, I will update my table with dB microVolt values soon). The CCIR-propagation curves for ground-wave propagation roughly indicate a field strength of 45 dB microVolt/m for a 1 kW ERP signal at a distance of 700 km (depending on ground conductivity). As my measurments were just taken randomly, they include some variables such as varying propagation, day- and night difference, etc. and therefore are not completely consistent. However, the data at least give some indication about the radiated power. Keep on the work, its worth doing it! I will keep on observing and measuring, hopefully catch your signal on 73 kHz today, I am looking especially for my first 'normal CW' crossband QSO. What are your operarting frequencies and schedules for 73 kHz? Vy 73 Geri, DK8KW (W1KW) http://www.qru.de