Thoroughly read the Polyphaser and ICE technical articles for your answers.
The lighting arrestors go right at your SPG which is just at the
entrance of the cables into the QTH. To this SPG you connect your shack
equipment ground and your service entrance ground. Also if possible and
not too far away, your tower grounding system (which is 75 ft worth of
ground radials for each tower leg with ground rods spaced every 2X their
height). Also at min at the base of the tower (Polyphaser recommends
also at the top of the tower) you ground the shields of all the coaxes
to the tower.
If you place the arrestors at the tower, then that section of cables
(yes more protected by being underground but not totally shielded) is
prone to picking up induced charge from a very close or direct strike
and then you have surge energy in your house. That's a bad thing.
Phil KB9CRY
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