Return-Path: Received: (qmail 17531 invoked from network); 13 Apr 2000 16:55:59 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by teachers.core.plus.net.uk with SMTP; 13 Apr 2000 16:55:59 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.02 #1) id 12fmnm-0005V9-00 for rsgb_lf_group-outgoing@blacksheep.org; Thu, 13 Apr 2000 17:49:10 +0100 Received: from mb09.swip.net ([193.12.122.212]) by post.thorcom.com with esmtp (Exim 3.02 #1) id 12fmnl-0005V4-00 for rsgb_lf_group@blacksheep.org; Thu, 13 Apr 2000 17:49:09 +0100 Received: from win95 (d212-151-53-227.swipnet.se [212.151.53.227]) by mb09.swip.net (8.8.8/8.8.8) with SMTP id SAA24137 for ; Thu, 13 Apr 2000 18:48:21 +0200 (MET DST) Message-ID: <000501bfa568$79c81200$e33597d4@win95.swipnet.se> From: "C Andersson" To: "RSGB LF group" Subject: LF: Puckeridge tests Date: Thu, 13 Apr 2000 18:50:32 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.5 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Hello LF-group, Interesting with this experiment. I just wonder how the efficiency of the used antenna is calculated (or perhaps measured). My calculations for a 100 m vertical _without_ toploading gives a radiated pwr of 1,6W with 1,4 A antenna current. (10W in 5 ohms). ERP = 2,9W. I believe the top wires also improves things a bit. Hw? /Christer sm6pxj