Return-Path: Received: (qmail 16855 invoked from network); 12 Apr 2000 15:24:41 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by teachers.core.plus.net.uk with SMTP; 12 Apr 2000 15:24:41 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.02 #1) id 12fOuM-00011j-00 for rsgb_lf_group-outgoing@blacksheep.org; Wed, 12 Apr 2000 16:18:22 +0100 Received: from mail2.svr.pol.co.uk ([195.92.193.210]) by post.thorcom.com with esmtp (Exim 3.02 #1) id 12fOuJ-00011e-00 for rsgb_lf_group@blacksheep.org; Wed, 12 Apr 2000 16:18:20 +0100 Received: from modem-122.hippo-tang.dialup.pol.co.uk ([62.137.28.122] helo=lvm) by mail2.svr.pol.co.uk with smtp (Exim 3.13 #0) id 12fOu4-0007CN-00 for rsgb_lf_group@blacksheep.org; Wed, 12 Apr 2000 16:18:05 +0100 Message-ID: <000201bfa492$66d24520$7a1c893e@lvm> From: "LAWRENCE MAYHEAD" To: "rsgb lf group" Subject: LF: Re. Decca Masts Date: Wed, 12 Apr 2000 16:18:03 +0100 MIME-Version: 1.0 Content-Type: text/html; charset=windows-1252 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: Content-transfer-encoding: 8bit

The performance of the Decca Ant. is quite intresting, the "gain"or at least the advantage over the normal amateur installation appears to be at least 20db

(comparison with G4GVC at this location for example). This is tremendous and

I dont see how it can be attributed to the height alone,conventional wisdom says

that a short vertical has the same radiation pattern as a full sise one,and even 300 feet is far short of full sise.So where do we look for the explanation? It now seems even more important to do a comparison with a "normal" ant.on site or near by.

I will be around at the weekend to do more comparisons.Many thanks to the teams for giving us this unique opportunity. 73s Laurie.