If you get some answers directly sent to you, I'd sure like to see what
they have to say about this. Thinking of doing something like this with a
40 meter delta loop. 73
Tom W7WHY
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
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