[TowerTalk] 133' Vertical on 160?
Rick Karlquist
richard at karlquist.com
Mon May 4 14:43:52 PDT 2009
john at kk9a.com wrote:
> Hello All,
> I've got a question, concerning the inverted L antenna. In all the
> books
> I've found, it states that one wants the vertical section "As high as
> possible". If one had a 133' tree or tower, would it just be wise to run
> all
> the wire vertically, instead of vertically and horizontally?
> Thanks for the help!
>
> Mike Almeter
> W4MJA
If you have more than 133 ft, it is advantageous to go even
higher and tune it up to frequency with a series capacitor.
The driving resistance is higher for > 1/4 wavelength, which
reduces ground loss. Another thing you can do if you have height to burn
is move the feedpoint up in the air a few dozen feet and use elevated
radials. If you can add a top loading wire ("T" style) without
sacrificing height, it is advantageous to do so, again to raise
the driving resistance.
Rick N6RK
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