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
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|