[TowerTalk] Stacks

[Guy Olinger, K2AV]

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73, Guy
k2av@contesting.com
Apex, NC, USA

----- Original Message -----
From: alsopb <alsopb@gloryroad.net>
To: <Towertalk@contesting.com>
Sent: Sunday, August 13, 2000 4:17 AM
Subject: [TowerTalk] Stacks


>
> 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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>


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