Topband: Topband resource

Wes wes_n7ws at triconet.org
Tue Jan 14 18:57:32 EST 2020


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
> _________________
> Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
>



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