Return-Path: Received: (qmail 17491 invoked from network); 15 Feb 2002 18:44:42 -0000 Received: from unknown (HELO warrior.services.quay.plus.net) (212.159.14.227) by exhibition.plus.net with SMTP; 15 Feb 2002 18:44:42 -0000 Received: (qmail 8966 invoked from network); 15 Feb 2002 18:44:41 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by warrior.services.quay.plus.net with SMTP; 15 Feb 2002 18:44:41 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.33 #2) id 16bnAG-00030q-00 for rsgb_lf_group-outgoing@blacksheep.org; Fri, 15 Feb 2002 18:32:56 +0000 Received: from mta01-svc.ntlworld.com ([62.253.162.41]) by post.thorcom.com with esmtp (Exim 3.33 #2) id 16bnAF-00030l-00 for rsgb_lf_group@blacksheep.org; Fri, 15 Feb 2002 18:32:56 +0000 Received: from oemcomputer ([213.104.105.143]) by mta01-svc.ntlworld.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with SMTP id <20020215183155.QSED9422.mta01-svc.ntlworld.com@oemcomputer> for ; Fri, 15 Feb 2002 18:31:55 +0000 Message-ID: <003c01c1b64f$48182ca0$a86668d5@oemcomputer> From: "mike.dennison" To: rsgb_lf_group@blacksheep.org References: <000601c1b53a$8f223980$f57b883e@lvm> Subject: LF: Re: Re. Vertical grounded tower for LF antenna. Date: Fri, 15 Feb 2002 18:33:21 -0000 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 5.50.4133.2400 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: Laurie, G3AQC wrote: > Mike G3XDV quite correctly pointed out that a gamma match could be used to > feed a vert. tower. > When I thought about this suggestion again, I realised that it would match the antenna OK, but of course it would not help to resonate it. Gamma matching is a good way of feeding a grounded resonant Marconi, but it is still necessary to use top wires to bring the vertical to resonance. Back to the drawing board . . . Mike, G3XDV ===========