Hi Dick,
It sounds like you want to add some directivity.
Have you considered the Qaugi directive type antenna model?
I seem to remember at least one ham who setup a lot of wire
directionals.
And one of his big antennas was a quagi using a square loop as the
driven element and vertical sections for directors.
Seemed to me like he was very pleased with it.
Just a thought.
Sounds like a fun project!
N1BBR :-]
> > On Mon, Sep 21, 2015 at 6:25 PM, Dick Allardyce (N4RA) via TowerTalk <
> > towertalk@contesting.com> wrote:
> >
> >> Hi all,
> >>
> >>
> >> I need some advice about a wire antenna for 80 meters. I have two 85'
> >> towers that support a nearly-square80 meter full-wave loop broadside to EU.
> >> It fits nicely, but the bottom is only about 10' off the ground. It's fed
> >> in the center of one vertical sidewith a 1/4 wave of RG/11. It works well.
> >> I'd like to hear of opinions or experience with adding awire parasitic
> >> element at this low height. Specifically, I'd like to add a half-wave wire
> >> yagi element spaced about .15WL that would be switchableto 3 different
> >> lengths: phone director, CW reflector or phone ref/CW dir. I change the
> >> physical size of the loop for CWor phone. I'd like to remotely
> >> switchdirection (and mode) of the resulting antenna by changing the length
> >> of theyagi element.
> >> Any opinion as to the usefulness of a parasitic element ofthis design with
> >> the whole thing so near ground? The yagi element will probably only be
> >> about30' in the air. I don't expect 2 elementperformance, but I don't want
> >> to bother if someone already knows it would be awaste of time.
> >>
> >> 73
> >> Dick
> >> N4RA
> >>
--
Bw_dw@fastmail.net
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