[TowerTalk] another Lightning Protection Question

[Jim Brown]

On Tue, 14 Sep 2010 08:29:33 -0400, Bill  NY9H wrote:

>my question :  at he house i have redundant polyphasers ( already own 
>them )...on another set of 5 ground rods at the house...

Hi Bill, 

You've got it backwards -- the polyphasers at the tower are the redundant 
ones, the ones at the house are the critical ones. You want them as close to 
the equipment as practical. Thinking of the "ground window" where all your 
antenna cables enter the shack, you want them there. You want short beefy 
copper to your ground rods (AND AC POWER grounds, AND CATV ground, AND telco 
ground, AND operating desk) from that panel. 

There are two parts to the equation. Part One is the bonding of the coax 
connector shields (the Polyphaser body), and of all of the other cables that 
enter your house, to that ground system, creates the shortest practical path 
for the strike away from equipment inside the house. Part Two is the element 
inside the Polyphasers, which shorts the center conductor to the shield, 
which protects the equipment antenna input/output. 

73, Jim K9YC