Return-Path: Received: (qmail 96194 invoked from network); 7 Jan 2004 08:58:21 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore01.plus.net with SMTP; 7 Jan 2004 08:58:21 -0000 Received: (qmail 48967 invoked from network); 7 Jan 2004 08:58:21 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 7 Jan 2004 08:58:19 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim) id 1Ae9W7-000Ccm-DX for dave@picks.force9.co.uk; Wed, 07 Jan 2004 08:58:19 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Ae9Vn-0003KQ-SS for rs_out@blacksheep.org; Wed, 07 Jan 2004 08:57:59 +0000 Received: from [203.109.254.51] (helo=grunt9.ihug.co.nz) by post.thorcom.com with esmtp (Exim 4.14) id 1Ae9Vl-0003KH-Qa for rsgb_lf_group@blacksheep.org; Wed, 07 Jan 2004 08:57:58 +0000 Received: from 203-118-166-89.adsl.ihug.co.nz (athlon) [203.118.166.89] by grunt9.ihug.co.nz with smtp (Exim 3.35 #1 (Debian)) id 1Ae9Vf-0007ym-00; Wed, 07 Jan 2004 21:57:51 +1300 X-Bad-Message-ID: no DNS (athlon) Message-ID: <001501c3d4fc$10a34b10$6800a8c0@athlon> From: "Dave Brown" To: rsgb_lf_group@blacksheep.org References: <000201c3d2f3$c4fb5f40$61e4fc3e@l8p8y6> <6.0.1.1.2.20031229161651.027e8660@POP3.freeler.nl> <000001c3d009$acf7a620$c7e47f50@Smisan> <6.0.1.1.2.20040103121138.0280f960@POP3.freeler.nl> <000601c3d2c3$2bd34e70$b733f7c2@johnb5a82ea1a4> <6.0.1.1.2.20040104163146.027efbe0@POP3.freeler.nl> <000201c3d2f3$c4fb5f40$61e4fc3e@l8p8y6> <5.1.0.14.0.20040106090928.03a8c2a0@u0019445.kuleuven.be> <5.1.0.14.0.20040106114939.03b15778@u0019445.kuleuven.be> Date: Wed, 7 Jan 2004 21:55:56 +1300 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1158 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: Re: LF: Horizontally polarised radiation Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Rik The ZL1WB LF antenna is strung across a gully and has between 300 and 600 feet ground clearance. Support to support distance is around 1km but there is quite a bit of sag, as you might expect-hence the ~3500 foot wire length. (sorry for mixing units-it's probably a sign of age!) It's fed at one end against ground and Bruce typically uses 40 watts or so of RF-he has a very good LF signal around ZL, as you might expect. 73 Dave, ZL3FJ ----- Original Message ----- From: "Rik Strobbe" To: Sent: Tuesday, January 06, 2004 11:51 PM Subject: Re: LF: Horizontally polarised radiation > Hello Dave, > > Quite impressive. > Can you give us a clue about the dimensions ? > Ever thought of making a triangular shaped loop ? > > 73, Rik ON7YD > > At 23:29 6/01/2004 +1300, you wrote: > >Have a look at the URL below to see a semi-decent horizontal LF ntenna - > >that of Bruce, ZL1WB. Whatever its predominant radiating mode is, it works > >rather well! > > > >73, > >ZL3FJ > > > > http://homepages.ihug.co.nz/~tractorb/ZL1WB%20LF%20ANTENNA.jpg > > >