[TowerTalk] Stacks

[alsopb]

Guys,

Anybody out there doing work with altering the phasing of the stacked
antennas.

Right now they the designs call for being fed in phase (whether they
are in practice is another story!).  Is there a benefit in adjusting
the phasing to put the angle of radiation where you want it, rather
than just feeding in phase and getting what results.

It would seem that rather than having a stack of 3 or 4 one could get
by with a stack of 2 (and perhaps save some $) and a few switched in
pieces of coax to alter the phase for most probable angles.

Assuming the antennas are resonant and "pure resistive", this ought to
work.  Getting the proper power sharing to the antennas may be a real
headache if the impedances are complex.

Any real world experience in ham-type applications?

Brian/K3KO

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