[TowerTalk] Wire grounding question

TexasRF at aol.com TexasRF at aol.com
Thu Nov 21 09:25:45 EST 2013

John, what is the problem with using multiple power strips? 
Gerald K5GW
In a message dated 11/21/2013 7:31:53 A.M. Central Standard Time,  
john at kk9a.com writes:

I use  MOVs at multiple points in the control wires to protect the rotators
and  the controllers.  I do not believe there is any harm except for  the
minimal cost.  I think you are referring to using multiple MOVs on  power
lines which can cause issues if you use different power strips in  your

John KK9A

To:    TowerTalk  <TowerTalk at contesting.com>
Subject:    Re: [TowerTalk] Wire  grounding question
From:    Ray Benny  <rayn6vr at cableone.net>
Date:    Wed, 20 Nov 2013 23:32:57  -0700

Mark and All,

I have no problem grounding the foil and  ground wire in this encoder cable.

I am puzzled though, inside the  Green Heron Controller, each terminal lug
going to the PP and encoder has  an MOV across it to ground. In one
discussion of where to place MOVs, it  was highly recommended not to place
additional MOVs anywhere but at the  base of the tower or at your SPG.

I did not fully understand the  explanation but if this is so, then the MOVs
in the Controller should not  be there but at the base of the tower either
attached manually or through a  lightning arrestor device. For Green Heron
controller, they probably  provide MOVs since many non-serious installations
may not have any  lightning protection at all.

Just my  thoughts.



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