[Fwd: LF: G3LDO LF Antenna]

Andre Kesteloot akestelo@bellatlantic.net
Tue, 13 Jan 1998 05:50:24 -0500

This is a multi-part message in MIME format.
Content-Type: text/plain; charset=iso-8859-1
Content-Transfer-Encoding: 8bit

attached is the description of  _one_  VLF antenna that

Content-Type: message/rfc822
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

Return-Path: <owner-rsgb_lf_group@troy.blacksheep.org>
Received: from postoffice2.bellatlantic.net ([])
          by postoffice3.bellatlantic.net (Post.Office MTA v3.1
          release PO203a  ID# 0-36905U39000L2S100) with ESMTP id AAA12390
          for <akestelo@bellatlantic.net>; Tue, 13 Jan 1998 03:55:08 -0500
Received: from postoffice.bellatlantic.net ([])
          by postoffice2.bellatlantic.net (Post.Office MTA v3.1
          release PO203a  ID# 0-43173U39000L2S100) with ESMTP id AAA5187
          for <akestelo@bellatlantic.net>; Tue, 13 Jan 1998 03:58:46 -0500
Received: from pmdfsrv.bellatlantic.net ([])
          by postoffice.bellatlantic.net (Post.Office MTA v3.1
          release PO203a  ID# 0-43172U39000L2S100) with ESMTP id AAA16806
          for <akestelo@bellatlantic.net>; Tue, 13 Jan 1998 04:05:26 -0500
Received: from mail4.bellatlantic.net ([])
          by pmdfsrv.bellatlantic.net (Post.Office MTA v3.1 release PO203a 
          ID# 0-43174U117000L2S100) with ESMTP id AAA23648
          for <akestelo@bellatlantic.net>; Tue, 13 Jan 1998 03:50:48 -0500
Received: from troy.blacksheep.org (root@troy.blacksheep.org [])
          by mail4.bellatlantic.net (8.8.5/8.8.5) with SMTP
	  id DAA19741 for <akestelo@bellatlantic.net>; Tue, 13 Jan 1998 03:56:39 -0500 (EST)
Received: (from root@localhost) by troy.blacksheep.org (8.6.12/8.6.12) id JAA02002 for rsgb_lf_group-outgoing; Tue, 13 Jan 1998 09:44:56 GMT
Received: from irwell.zetnet.co.uk (root@irwell.zetnet.co.uk []) by troy.blacksheep.org (8.6.12/8.6.12) with ESMTP id JAA01996 for <rsgb_lf_group@blacksheep.org>; Tue, 13 Jan 1998 09:44:51 GMT
Received: from central.zetnet.co.uk (central.zetnet.co.uk [])
	by irwell.zetnet.co.uk (8.8.7/8.8.5) with SMTP id IAA17583
	for <rsgb_lf_group@blacksheep.org>; Tue, 13 Jan 1998 08:25:42 GMT
X-ZSender: g3ldo@zetnet.co.uk
Message-ID: <1998011308240268199@zetnet.co.uk>
Date: Tue, 13 Jan 1998 08:24:02 GMT
To: rsgb_lf_group@blacksheep.org
From: Peter Dodd <g3ldo@zetnet.co.uk>
X-Mailer: ZIMACS Version 1.20c 10000836
Subject: LF: G3LDO LF Antenna
Sender: owner-rsgb_lf_group@blacksheep.org
Precedence: bulk
Reply-To: rsgb_lf_group@blacksheep.org

Attached File: LFANT.PCX

Some interest has been shown in my 73kHz antenna so I will describe it. 
The LF shack is located at the bottom of the garden some 44m away 
from the house. The main support is a 16m high home made fold-over 
mast (the one described in the Antenna Experimenters Guide) located 
39m from the house.
At the top of the mast is a 3m metal spreader. The antenna comprises 
two wires only, which are joined together at the ends and spread 3m 
apart at the highest point. The antenna is connected at the loading 
(secondary) coil at the shack end and supported by a short pole on 
the house at the other.
This antenna has a much larger horizontal component than traditional 
Marconi antennas and its configuration was dictated by existing 
positions of the mast, garden shed and house rather than LF design 
considerations. It will be interesting to see how this antenna 
performs on 136kHz.
 Because of planning condiderations it has to be folded over during 
hours of daylight! (theoretically). This is why I only transmit in 
the mornings and evenings.
  I have attached a PCX file to this message, to show the general 
configuration of the antenna. 

 Peter Dodd, g3ldo@zetnet.co.uk