[TowerTalk] Feedline choke for A3 beam

[yo3ctk]

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Hello everybody,

I=92ve planned to install this weekend my =93new=94 A3 beam. This is my =
first
beam, folks, so please try not to laugh too hard at my question.

Here it goes:

In the (very short) Cushcraft A3 installation manual it is written that
one should make a choke balun by coiling the feedline (8 turns, 6=94
O.D.). and then: =93tape the coiled feed line choke to the boom near =
the
feedpoint=94. I am worried that this coil would be too heavy and will
unbalance the antenna, not to mention that it will add to the wind =
load.
Moreover, placing the coil in the immediate vicinity of a metallic
object (the boom) will upset the performance of the balun. So my
question is: this coil is to be hanged from the boom or attached to the
mast ? And using tape to fasten such a heavy object, which will surely
swing in the wind, is really a reliable method ? Finally, how long
should be the =93free=94 portion of the cable, between this damned coil =
and
the first attachment point to the tower (allowing the antenna to =
rotate)
? (OK, so there were three questions :-))

I will surely appreciate your advice. Thank you very much.

73 de Mike, YO3CTK


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