Return-Path: Received: (qmail 2653 invoked from network); 6 Mar 2000 17:15:54 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by redlabel.core.plus.net.uk with SMTP; 6 Mar 2000 17:15:54 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.02 #1) id 12S0x3-0001n4-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 06 Mar 2000 17:05:49 +0000 Received: from cmailg2.svr.pol.co.uk ([195.92.195.172]) by post.thorcom.com with esmtp (Exim 3.02 #1) id 12S0wz-0001mz-00 for rsgb_lf_group@blacksheep.org; Mon, 06 Mar 2000 17:05:45 +0000 Received: from modem-3.elessar.dialup.pol.co.uk ([62.136.185.3] helo=lvm) by cmailg2.svr.pol.co.uk with smtp (Exim 3.13 #0) id 12S0wo-00048U-00 for rsgb_lf_group@blacksheep.org; Mon, 06 Mar 2000 17:05:35 +0000 Message-ID: <000201bf878e$3b399b00$03b9883e@lvm> From: "LAWRENCE MAYHEAD" To: "rsgb lf group" Subject: LF: Re. Resonant radials. Date: Mon, 6 Mar 2000 17:04:03 -0000 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

Hi Peter,

I dont think resonant radials are going to be very efficient unless quite high! But to resonate I found it best to tune the radial system against ground! as though it were an antenna.This needs a ground connection of course but I assume you already have one.The impedance at the feed point will be quite low (series resonance).I would then tune the proper ant against ground,and finally replace the ground with the radial system,without re-adjusting the resonance.I did not get very high voltages doing this.Of course you could retain the ground connection as well,and this would no doubt reduce the voltage.further. I hope this is of some use to you.73s Laurie.