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[TowerTalk] Grounding

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Subject: [TowerTalk] Grounding
From: (Phil - KB9CRY)
Date: Tue Jun 3 16:34:08 2003
You only need to tie one of the tower rods to the shack ground, if 
possible.  That's your SPG (single point ground, even with two rods) and 
everything should be tied to that, so to speak.  Yes, yes, yes, tie that 
also to the service entrance ground.  Don't delay and don't listen to 
the naysayers.  (Read the technical info on the Polyphaser website if 
you need convincing.)  Use large single conductor wire to tie all these 
together; I used #4 bare solid for my system.  Finally I heartily 
recommend going the little extra and use CadWeld single shot grounding 
to tie the wires to the rods.  They are not that more expensive than 
clamps and require zero maintenance; one should go and retighten their 
ground clamps at least twice a year.  You'd be surprised how loose they 
become from outdoor temperature cyclying.  The one shots are easy to 
use.  Have your local industrial/contractor electrical supply house 
order them (go to for part numbers or I believe Harger 
sells them also ( I think).  Gd luck, but do it right and you 
won't be sorry.  Phil  KB9CRY

Alan Young wrote:

>To all that offered advice on raising a 40' Universal tower- thanks!  It is up.
>I have three ground rods ( one for each leg).  I am not sure if I should tie 
>them all to the house ground ( a 5/8" copper rod in the foundation by the AC 
>service entrance).  I also have two ground rods for radio ground, as well as 
>the lightning suppressors.  I have been told to tie everything together to the 
>house ground, and others have said NO.  Any help would be appreciated.
>Alan Young     N5ACY
>See:  for "Self Supporting Towers", "Wireless 
>Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any 
>questions and ask for Sherman, W2FLA.
>TowerTalk mailing list

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