I always place a choke at feed point, and a second one at the other end of the
feeder, at the radio shack.
Both ends of the long coax got a choke.
73, Maximo EA1DDO
<http://foro.ea1ddo.es/>
________________________________
De: TowerTalk <towertalk-bounces@contesting.com> en nombre de john@kk9a.com
<john@kk9a.com>
Enviado: viernes, 27 de enero de 2023 0:39
Para: towertalk@contesting.com <towertalk@contesting.com>
Asunto: Re: [TowerTalk] Common Mode Choke Locations
The only location where I use a choke is at the antenna feed point.
John KK9A
Art Greenberg WA2LLN wrote:
The questions:
I realize that the bonding and lightning ground system isn't an RF
ground, but I wonder if it influences the location(s) of common mode chokes?
I -think- a CM choke is appropriate at the antenna feedpoint, despite
the bonding setup. Is that true?
Is an additional CM choke appropriate near the bottom of the tower? On
which side of the bonding at the bottom of the tower?
Is an additional CM choke appropriate before the lightning arrestor? Or
between the lightning arrestor and the equipment?
TNX
--
Art Greenberg
WA2LLN
art at artg.tv
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