Hi Guys,
I'd appreciate your thoughts and recommendations on the following 80-meter
antenna setup:
I operate portable from a QTH in Wisconsin for several weeks each year.
This site has a short 50' tower, a small Hy-Gain TH-3 Mk3 Tribander on top,
and non-conductive guy wires. For a 80 meter antenna I've been using an
Inverted V with apex at 47' and the ends at 15' above ground. This 80-meter
Inverted V seems to work pretty well on Stateside q's and fairly well on
DX... but I've never done an A/B comparison with another antenna to compare
results. I base my results on how well it busts pileups in contests.
Thought: Most people I've heard of who have modeled Inverted Vee's
typically say "the Inverted Vee is a poor performer" and "you're much better
off
with a flat-top dipole". But a few people contend that an Inverted Vee has
some vertical polarization which lowers the angle of radiation. So in
this case, if the flat-top dipole was at 47' (less than a quarter wave) it
would still be a cloud warmer.
Question: Since the flat-top dipole at 47' would be a cloud warmer, it
seems to me that even if the Inverted Vee only had a very small amount of
vertical radiation that the low Inverted Vee could perform as well as or
better
than the low dipole on qso's over 1,000 miles. Do you agree that the low
Inverted V might outperform the low flat-top on q's of a 1,000 miles or
more? If anyone has done A/B comparisons on a low Inverted Vee vs. a low
flat-top dipole please share the results. I am thinking that modeling
software
may not give the Inverted Vee any allowance for vertical polarization...
which could be why they often model poorly.
I'd really appreciate it if anyone had A/B comparison information you
could share on a low Inverted Vee do compared to low flat-top dipoles. I
relaize I could shunt feed this tower but that would require radials and it's
more work than I'd like to invest into a portable antenna.
Thanks & 73!
Dick- K9OM/9
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