Return-Path: Received: (qmail 742 invoked from network); 29 Jun 2000 12:41:56 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by excalibur.plus.net with SMTP; 29 Jun 2000 12:41:56 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.02 #1) id 137dTW-0003tF-00 for rsgb_lf_group-outgoing@blacksheep.org; Thu, 29 Jun 2000 13:31:22 +0100 X-Priority: 3 X-MSMail-Priority: Normal Received: from imo-r14.mx.aol.com ([152.163.225.68]) by post.thorcom.com with esmtp (Exim 3.02 #1) id 137dTV-0003t9-00 for rsgb_lf_group@blacksheep.org; Thu, 29 Jun 2000 13:31:21 +0100 Received: from G0MRF@aol.com by imo-r14.mx.aol.com (mail_out_v27.10.) id l.c3.6eb3a9f (4218) for ; Thu, 29 Jun 2000 08:30:44 -0400 (EDT) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 From: G0MRF@aol.com Message-ID: Date: Thu, 29 Jun 2000 08:30:44 EDT Subject: LF: Wire for LF Antennas To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Mailer: AOL 5.0 for Windows sub 32 Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: In a message dated 6/28/00 11:21:39 AM GMT Daylight Time, kayser@sympatico.ca writes: << Moving forward through the lists of things and issues to be worked on, the subject of WIRE for LF antennas comes up. The objective of this email is to have a discussion with active LF amateurs that will ensure for me at the end of the day that the best alternatives have been discovered and considered for use here. >> Hi All. I've tried various insulated stranded copper 'equipment' wire which is OK in short runs, or for a short time. The Whitton club antenna, and the /P antenna used at Hastings is standard hard drawn copper in UK 16 gauge ( apx. 1.7mm dia ) The clubs 234 foot has been in place for 2 years without problem but the extra tension to raise 300m would be considerable. Price here is £15 per 100m. The resistive losses in the antenna should be minor compared to the losses in the coil / ground system. How about a thin steel cable under a lot of tension, used to support a lower loss copper radiator. As in power distribution between pylons? 73 David G0MRF