Ed, K4SB had an article in a magazine back in the late 70's when he was
K4DJC. He added a mast on top of the tower with a rotating fixture so he
could get any wire antenna 25 feet above the tower rather than being limited
to just below the beams. He had a way to calculate the height required and
angle of the wire to safely clear the biggest beam. The antenna actually
provided guying for the extension.
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
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