Return-Path: Received: (qmail 14097 invoked from network); 18 May 2000 08:45:11 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by teachers.core.plus.net.uk with SMTP; 18 May 2000 08:45:11 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.02 #1) id 12sLoe-0002e8-00 for rsgb_lf_group-outgoing@blacksheep.org; Thu, 18 May 2000 09:38:00 +0100 Content-Transfer-Encoding: 8bit Received: from mail.cc.kuleuven.ac.be ([134.58.10.6]) by post.thorcom.com with esmtp (Exim 3.02 #1) id 12sLod-0002e3-00 for rsgb_lf_group@blacksheep.org; Thu, 18 May 2000 09:37:59 +0100 X-Priority: 3 X-MSMail-Priority: Normal Received: from LCBD15.fys.kuleuven.ac.be (LCBD15.fys.kuleuven.ac.be [134.58.80.15]) by mail.cc.kuleuven.ac.be (8.9.3/8.9.0) with SMTP id KAA162070 for ; Thu, 18 May 2000 10:37:37 +0200 Message-ID: <3.0.1.16.20000518103317.2eff836a@mail.cc.kuleuven.ac.be> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Sender: pb623250@mail.cc.kuleuven.ac.be X-Mailer: Windows Eudora Pro Version 3.0.1 (16) Date: Thu, 18 May 2000 10:33:17 To: rsgb_lf_group@blacksheep.org From: "Rik Strobbe" Subject: Re: LF: Puckeridge Decca station - Big & small antennas In-reply-to: <3922E5EB.A2799102@netscapeonline.co.uk> References: <28528.200005171129@gemini> 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: On 17/05/00 G3KEV wrote: >To my knowledge no one in the past has disputed that a large and small >vertical would have the same radiation PATTERN. What has been said is >that the intensity of the signal radiated from a large vertical is >greater than a short one. On receive the signal voltage collected by a >large vertical is greater than the small vertical. On 17/01/00 G3KEV wrote : >There is a big difference in the radiation pattern and angle of take off >between a high vertical antenna and a very low antenna given the same rf >power to the antenna. 1 Watt erp from a dummy load or low horizontal wire >is hardly the same as 1 Watt erp from a vertical antenna at 120 ft. Did I miss(understand) something ? 73, Rik ON7YD