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Re: Topband: Topband resource

To: topband@contesting.com
Subject: Re: Topband: Topband resource
From: Wes <wes_n7ws@triconet.org>
Date: Tue, 14 Jan 2020 16:57:32 -0700
List-post: <mailto:topband@contesting.com>
Could be.  I worked my first 80 countries or so on topband with an inverted-Vee, apex at 45' and ends tied off on Saguaro cacti head high.  The transmission line hung straight down parallel to and about a foot or so from the tower.  The tower has some ground rods but no radials and the single set of guys at 20 feet are not insulated.  The vee was originally cut for 80-meters and the choke balun is adequate for that but certainly not 160.

Wes  N7WS


On 1/14/2020 4:15 PM, Richard (Rick) Karlquist wrote:

An easy explanation for what you are seeing is that your feedline is
unintentionally radiating as a vertically polarized element.  It
is really easy to occur unless you go to a lot of trouble to prevent
it.  And why would you do that?

You can find descriptions of the so called "loop sky wire" (horizontal
loop) where the reader is warned NOT to use a balun or it won't get
out.

Rick N6RK
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