I'm installing a pair of M2 circularly polarized yagis.  I have a long coax run, so I'm going to use SSB Electronics preamps mounted on the 8' tower.

I have a ground rod by the base of the tower with a couple of lightning arrestors that the two coax runs go through, but I was curious what to do about protecting the inputs to the preamps?  Do I use a second pair of lightning arrestors between the antennas and the preamps? Or just mount the preamps on the shack-side of the existing lightning arrestors?

Rich, KD2CQ