Have no experience with high rooftop antenna mounting, but someone on the
reflector might kindly do a little terrain modelling for you.
My hunch is that a short mast on the roof supporting a beam would do the
trick, especially if close to the parapet in the most favoured direction.
For the lower bands, indeed all bands, I would first try a horizontal
loop around the perimeter of the roof. Since interference could be a
problem, would try feeding with binocular coax. With a simple balun the
built in antenna tuner in most transceivers should do the trick, typically
such loops have moderate feed impedances.
cheers and 73
Baz ZL1DD
--
Barry Kirkwood ZL1DD
barrykirkwood@gmail.com
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