[Antennas] Wire dipole above yagi? Interaction?

Sat Nov 6 09:32:30 EST 2004

I'm reading a July 76 Ham Radio article about mounting a wire dipole
on the top of a mast (on a rotating sleeve) above a tower mounting
yagi. To clarify, the center of the dipole is mounted to a rotating sleeve
such that when the yagi turns, the dipole feedpoint is stationary.
My question is how much interaction should be expected
if the dipole/vee is mounted 10-12 feet above the yagi?
I'd like to consider a 80-40-30 dipole mounted above a triband yagi
with 40m add on (Cushcraft A4). Will I hose the performance
of the yagi in doing so? Yagi height is only 45 feet.
Thanks for your insight
John K5MO
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