Towertalk
[Top] [All Lists]

[Towertalk] Shunt feed crank up

To: <towertalk@contesting.com>
Subject: [Towertalk] Shunt feed crank up
From: dhearn@ix.netcom.com (dan hearn)
Date: Wed, 23 Oct 2002 20:07:27 -0700
Dana: I gamma feed my 131 ft crank up on 160. I have the coax arms with
yagi coax and rotator cable runing down through them. I clamped a piece
of square aluminum tubing to the mid level coax arm with 2 hose clamps
and dropped a nr 10 wire down from the end of it. The extension is about
4 ft long. A vac variable tunes the gamma for an SWR under 1.5 over the
lower part of the band. Your tower is much shorter and you will probably
need a different tap point. You might want to try an Omega match. Should
work fine.

73, Dan, N5AR


Dana Roode wrote:
> 
> Hi all,
> 
> How hard would it be to shut feed a 55' crankup tower with 10' mast and
> C3/D3W for 160m? I could add some top loading wires.  I read that the coax
> to the HF antennas should be run through the center of the tower, but mine
> are held by the coax arms and run outside the tower.  Is this a real issue?
> 
>   Dana, K6NR
> _______________________________________________
> AN Wireless Self Supporting Towers at discounted prices,
> See http://www.mscomputer.com
> 
> Wireless Weather Stations now $349.95. Call Toll Free,
> 888-333-9041 for additional information.
> _______________________________________________
> Towertalk mailing list
> Towertalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk

<Prev in Thread] Current Thread [Next in Thread>