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Re: Topband: FEEDING AN END-FED LONGWIRE

To: topband@contesting.com
Subject: Re: Topband: FEEDING AN END-FED LONGWIRE
From: Sinisa Hristov <shristov@ptt.yu>
Date: Wed, 10 Mar 2004 22:01:27 -0500
List-post: <mailto:topband@contesting.com>
Earl W Cunningham wrote:

> If there's a myth that an end-fed long wire is no good, it's news to me
> and is indeed only a myth.

No, there isn't a myth than such an antenna is no good.

But there is a myth about how such an antenna actually works.
This has been explained decades ago, and one reference springs to mind:

  The Black Art of Antenna Design
  by Donald K. Reynolds
  73 Magazine, November 1979

G6XN also gives a very good account of this in his
book "HF antennas for all locations".

The essence is that physically there can be no "end-fed" antennas,
irrespective of what their builders and users may think,
or how many countries, etc., they have worked.

All antennas are, so to speak, "center-fed" (symmetry not suggested)
with equal incident current feeding two legs,
one of which may be apparent, and the role of the other leg played
by the transmission line, if necessary.

So, your antenna certainly had two legs, 
although you had to pay for one only :-)


73,

Sinisa  YT1NT, VA3TTN
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