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[TowerTalk] Re: Force 12 C4XL (with elements insulated from boom) - bond

To: "tower talk" <towertalk@contesting.com>
Subject: [TowerTalk] Re: Force 12 C4XL (with elements insulated from boom) - bonding anelement to boom to allow shunt feeding tower?
From: "Tom Sykes" <nu7j@hotmail.com>
Date: Sun, 24 Aug 2003 21:31:37 -0700
List-post: <mailto:towertalk@contesting.com>
I'm building a Force 12 C4XL (2 elements on 40M, plus C-3 tri-bander).  I plan 
to shunt feed my Rohn 25G tower on 160M.  However, the elements on the Force 12 
antenna are insulated from the boom.  I seem to recall reading some threads on 
T-T discussing this issue, but I was unable to locate this info via an archive 
search.  (By the way, my guy wires are insulated from the tower).

  If I remember correctly, the 40M reflector can be bonded to the boom without 
affecting the antenna performance.  I think someone suggested bonding through a 
series inductor (a few turns of wire).  Does anyone have experience or 
knowledge with this situation?  (I tried to ask Force 12 this question but was 
unable to make contact them this week.)

  Any info would be greatly appreciated!  The antenna is going up on Monday 
with help from K7LXC.


  73,  

  Tom, NU7J 
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