Return-Path: <majordom@post.thorcom.com> Received: (qmail 28872 invoked from network); 24 Aug 1999 17:01:21 +0100 Received: from magnus.plus.net.uk (HELO magnus.force9.net) (195.166.128.27) by guiness.force9.net with SMTP; 24 Aug 1999 17:01:21 +0100 Received: (qmail 24133 invoked from network); 24 Aug 1999 15:59:46 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by magnus.plus.net.uk with SMTP; 24 Aug 1999 15:59:46 -0000 Content-Transfer-Encoding: 8bit Received: from majordom by post.thorcom.com with local (Exim 3.02 #1) id 11JIqK-00051x-00 for rsgb_lf_group-outgoing@blacksheep.org; Tue, 24 Aug 1999 16:50:36 +0100 Received: from gatef.bbc.co.uk ([132.185.132.15] helo=gatef.kw.bbc.co.uk) by post.thorcom.com with esmtp (Exim 3.02 #1) id 11JIqJ-00051s-00 for rsgb_lf_group@blacksheep.org; Tue, 24 Aug 1999 16:50:35 +0100 X-Priority: 3 X-MSMail-Priority: Normal Received: from sunf0.rd.bbc.co.uk (ddmailgate.rd.bbc.co.uk [132.185.128.104]) by gatef.kw.bbc.co.uk (8.8.5/8.7.2) with SMTP id QAA17618 for <rsgb_lf_group%blacksheep.org@mail.rd.bbc.co.uk>; Tue, 24 Aug 1999 16:50:29 +0100 (BST) Received: from pc523 by sunf0.rd.bbc.co.uk; Tue, 24 Aug 99 16:50:27 BST X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Message-ID: <3.0.5.32.19990824165023.009b02e0@sunf0> X-Sender: simonlh@sunf0 X-Mailer: QUALCOMM Windows Eudora Pro Version 3.0.5 (32) Date: Tue, 24 Aug 1999 16:50:23 +0100 To: rsgb_lf_group@blacksheep.org From: "Simon Lloyd-Hughes" <simon.lloyd-hughes@rd.bbc.co.uk> Subject: Re: LF: Multiple tuned vertical In-reply-to: <37BEAA82.B926CC8C@bellatlantic.net> References: <000601beeba0$859e6e80$ed29f482@win95.swipnet.se> 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: <majordom@post.thorcom.com> Is there an ISBN number for this? At 09:32 21/08/99 -0400, you wrote: >Hello Chris, >A mathematical (and practical) treatment of Multiple Tuning for vertical antennas can be found in: > > Radio Antenna Engineering > by Edmund Laport McGraw Hill NY 1952 > pp. 38-43 > >This book is obviously out of print, but I could send you photocopies of the relevant pages. >73 >Andre' N4ICK >*********************************** > >Christer Andersson wrote: > >> I would like to hear if anyone have tested the Multiple Tuned Vertical in some form. >> I have understood that the antenna transforms the feed impedance with a factor equal to the square of the number of wires used. E.g.10 wires would raise the feed impedance about 100 times. >> I'm just rebuilding my LF-station and this antenna looks very interesting. However, not much information has been found in my litterature. Links or articles would be much appreciated. >> 73, >> Christer / sm6pxj > > > > > > > > > > > > ____________________________________________________________________________ ___________________________________________________________________ Email: simon.lloyd-hughes@rd.bbc.co.uk Tel: Internal 36692 External 01737 836692 Mobile 0589 151485 FAX: 01737 836555 ____________________________________________________________________________ ___________________________________________________________________