[TowerTalk] If you can't erect a tall tower ...
jim at audiosystemsgroup.com
Tue Dec 15 16:41:06 EST 2020
On 12/15/2020 12:24 PM, Dan Maguire wrote:
> how about a short tower on a tall hill?
YES! Even short hills make pretty good towers, especially for
horizontally polarized antennas. And N6BT has reported disciplined
experimental work showing that radiation/reception of verticals benefits
strongly from being at the edge of a dropoff in the direction of the
dropoff. I heard him present this work at Pacificon several years ago,
and for this NCJ piece, K6OIK developed a model in H.O.B.B.I.E.S that
predicted the effect. H.O.B.B.I.E.S. is modeling software that can build
far more complex models than NEC, including surrounding objects and terrain.
73, Jim K9YC
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