"Jimmie D" wrote
While operating on 10M I have observed that a halfwave vertical dipole
will communicate to different areas than a 1.25wl vertical monopole an
example would be that during a band opening the 1/2 wl antenna may be
working predominantly into New York while the 1.25 wl antenna is
working best in California or was it vice versa. This has proven
useful for me, instead of fighting a pile-up and can just talk
somewhere else. The two verticals may soon be replaced with a tri-
bander and I was wondering if I could get this same type of effect by
tilting the antenna vertically(no change in polarity) with a remote
controlled device. I think it would be pretty cool to hear different
areas of the country pop in and out as the elevation of the antenna is
changed.

I don't know how you missed it, but there have been several threads
here recently about TOA, tilting antenna elements, purity of polarity,
ect...A google search on Art Unwin will provide more than you'll
ever want to know, especially about mental health and junk science.
The demo version of EZNEC should also provide you with plenty
of useful answers, and will sink enough of your time to keep you off
the streets and out of the bars!Several programs will allow you to
model effects of changing antenna heights ( only one of a multitude of
variables) on the resulting signal path.
Keep us here on RRAA posted on your results, and gud luck in
the contests!

Mike W5CHR