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Re: [TowerTalk] Shunt feeding with SteppIR on top

To: <rjairam@gmail.com>, <towertalk@contesting.com>
Subject: Re: [TowerTalk] Shunt feeding with SteppIR on top
From: Howard K2HK <howk2@hotmail.com>
Reply-to: rf@xemaps.com
Date: Sun, 7 Nov 2010 18:17:56 +0000
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Ryan,
A few years back I had a pair of 4 el Steppir"s on an 80 ft tower with a vhf 
vertical on top. I made no modifications to the Steppir"s. Never had a problem 
and worked very nicely. I had 2 separate shunt feeds for 80 and 160. I used  
1/4" CU tubing for the shunt wire and vacuum variables for each.

Howard..K2HK 




> Date: Sat, 6 Nov 2010 19:26:48 -0400
> From: rjairam@gmail.com
> To: towertalk@contesting.com
> Subject: [TowerTalk] Shunt feeding with SteppIR on top
> 
> I've been reading the Antenna book and toying with the idea of shunt
> feeding my tower for the low bands.
> 
> My current tower is a 70 footer self supporting with a SteppIR MonstIR
> on top.  The top of the mast is at 86 feet (5 feet inside the tower to
> the rotor, 21 foot mast). I have a VHF/UHF vertical for repeater work
> on the top.
> 
> Has anyone shunt fed a tower with a SteppIR? What sort of issues did
> they run into?
> 
> How effective will it be on 75/80? What about 160?
> 
> Ryan, N2RJ
> _______________________________________________
> 
> 
> 
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