The earth ground is the only guarantee of proper lightening strike protection, with antenna OR cable. Next problem then will be ground loops (hum) in your system. Fix that with a ground isolator unit. Most online suppliers have them. Try Audio Advisor or Music Direct.
Surge supression on attena for Tuner???
I finally mounted my roof antenna and now the question is should I hook it up directly to my magnum dynolab tuner. Girlfriend is worried about a lighting strike or storm. I have a PS audio Power Director 4.7 that has a surge suppressor for coax built in should I run it through that or will that just lower the signal?