The modeling I have done, for the most part shows
the towers does not impact the pattern, there are
exceptions ... especially as to vertical arrays,
or yagi elements too close to the tower itself.
What I have also noted though that many seem to
overlook is too many antennas, too close together.
What good does it do for the overall RF system
performance if you isolate the guying, either with
insulators, or insulated guys, and then hang multiple
inverted vee type antennas with wire elements crossing
into the lower yagi in a stack's field?
Sometimes less is better, than more <... that is as
to interactions between antennas.>
Just another thought to ponder ...
73 de Billy, AA4NU
>From: Gregg Seidl <email@example.com>
>I've always questioned the use of Phillystran guy wire.We worry so much
>about having that conductor in the antenna area but we don't seem to notice
>that there is a large thick piece of metal (tower) right below.Plus if we
>side mount it the antenna is looking thru the tower.Has anyone every
>EZNEC'ed that? Gregg K9KL
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