Re: Topband: Shunt feeding tower

[Herbert Schoenbohm <herbert.schoenbohm@gmail.com>]

I place all rotor wires and other cable through a few 3" Ferrite rings 
at the base of the tower with as many turns as I can squeeze on.  Before 
doing this I had a slight deflection in the rotor indicator at the shack 
when I was on 160. Now I have none. The most sensitive item may be the 
heavy bare wire indicator pot inside the rotor case.  Yet I have never 
lost one to burn out from RF.

Herb, KV4FZ


On 8/27/2014 8:35 AM, LB3RE LJ3RE Stein-Roar Brobakken wrote:
> How is inteference on rotor or relay boxes?I thinking 1kw generate magnetic 
> radiation into cables ???  How u solve this guys ??  Tnx
>
> ---Sent by iphoneLB3RE LJ3RE K3RAG ex: LA6FJAwww.lb3re.com ~ Rag ~ Stein Roar 
> Brobakken e-mail:post@lb3re.comhttp://la5o.wordpress.comwww.contesting.no
>
> Reading about 3-wire cages and the like, I feel a serious case of shunt
> envy.  Mine is a single wire about 18 inches from one corner of my Rohn
> 25, connected to the tower at about 50 feet.  I used an omega match with
> a couple of 3 KV transmitting variables, because my tower is quite tall
> for 160 (97 feet with 3 yagis, 2 on top) and I could not find a 50-ohm
> point.It was absurdly easy to adjust and seems to work quite well at 100
> watts.  I'm sure there are better solutions (including Herb's), but this
> was really simple.
>
>
>
> 73, Pete N4ZR
>
> Check out the Reverse Beacon Network at
>
> http://reversebeacon.net,
>
> blog at reversebeacon.blogspot.com.
>
> For spots, please go to your favorite
>
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>
>
>
> On 8/26/2014 5:12 PM, Don wrote:
>
> > I would like to get on 160 this question most likely has been asked a 1000 time 
> > but I need information as how or can I shunt feed my 55 ft rohn 45 .
> > Don
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