Return-Path: Received: (qmail 32145 invoked from network); 9 May 2003 22:07:27 -0000 Received: from netmail01.services.quay.plus.net (212.159.14.219) by mailstore with SMTP; 9 May 2003 22:07:27 -0000 Received: (qmail 4080 invoked by uid 10001); 9 May 2003 22:00:47 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail01.services.quay.plus.net with SMTP; 9 May 2003 22:00:47 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.14) id 19EFuA-0004j2-0V for rsgb_lf_group-outgoing@blacksheep.org; Fri, 09 May 2003 22:59:50 +0100 Received: from [203.109.254.41] (helo=grunt1.ihug.co.nz) by post.thorcom.com with esmtp (Exim 4.14) id 19EFu4-0004it-PU for rsgb_lf_group@blacksheep.org; Fri, 09 May 2003 22:59:45 +0100 Received: from p56-max1.chc.ihug.co.nz (athlon) [203.173.224.56] by grunt1.ihug.co.nz with smtp (Exim 3.35 #1 (Debian)) id 19EFty-0005GG-00; Sat, 10 May 2003 09:59:39 +1200 Message-ID: <014201c31676$53bea1a0$0100a8c0@athlon> From: "Dave Brown" To: rsgb_lf_group@blacksheep.org References: <5.1.0.14.0.20030509160755.00b1f438@gemini.herts.ac.uk> Date: Sat, 10 May 2003 09:59:55 +1200 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: Re: LF: Other transmission lines Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=-9.8 required=5.0tests=QUOTED_EMAIL_TEXT,REFERENCESversion=2.53 X-Spam-Checker-Version: SpamAssassin 2.53 (1.174.2.15-2003-03-30-exp) 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: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false A certain well known ZL LF enthusiast used this method of antenna feeding some years back. But he forgot about curtains that move around in the wind etc, especially when least expected. Even just a few hundred volts with a bit of LF energy behind it can burn marks on curtains! 73 Dave, ZL3FJ PS- and 'twas not I! ---- Original Message ----- From: "James Moritz" To: Sent: Saturday, May 10, 2003 4:26 AM Subject: Re: LF: Other transmission lines > Dear LF Group, > > Getting back to the topic of LF antennas, another useful type of feed > method for LF antennas is the "450ohm unbalanced air line", or, to the > layman, the "bit of wire hanging in the air". snip