[TowerTalk] RF Choke or Balun

[Mike K9MI]

I "read the book" and for my Hy-Gain TH3 tribander it says 12 turns 6" 
diameter. Is this one case where you get bad advice from doing what the 
manual calls for????

73 Mike K9MI


----- Original Message ----- 
From: "Pat Barthelow" <aa6eg at hotmail.com>
To: <wboxq at grandecom.net>; <towertalk at contesting.com>
Sent: Wednesday, June 13, 2007 01:51
Subject: Re: [TowerTalk] RF Choke or Balun


> Jim,
>
> Here is some good info on choke baluns...
>
> See: http://www.k1ttt.net/technote/airbalun.html
>
> Sincerely, Pat Barthelow     aa6eg at hotmail.com
> http://www.jamesburgdish.org
> Jamesburg Earth Station  Moon Bounce Team
> http://www.cq-vhf.com
>
>>From: "wb5oxq" <wboxq at grandecom.net>
>>To: <towertalk at contesting.com>
>>Subject: Re: [TowerTalk] RF Choke or Balun
>>Date: Tue, 12 Jun 2007 16:22:15 -0500
>>
>>If I were to make a new choke for my triband beam out of RG-213, how many
>>turns would you suggest and what diameter coil.  Is pvc pipe a good coil
>>form?  How far away from the connection at the driven element can it be
>>located.  Can I tie strap the assembly to the boom?  My antenna is a force
>>12 c-3 at 52' above ground.  My current choke may have been hit by
>>lightning
>>at some time and works ok at 100 watts with 1.4 to 1 but at legal limit 
>>the
>>reflected power rises to 70%.
>>WB5OXQ, Jim in Waco
>
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