The coax for my 6BTV vertical enters my house near the electric panel. I would like to put an outdoor lighning arrestor in the coax. The electric service ground rod is only a few feet away. Can I run a ground wire from the lighning arrestor to the electric service ground rod or should I use a separate ground rod?
You should also ground your antenna mast if you have one, as it is required per NEC.
I'm doing this now and I just bought a grounding box and arrestors from DX Engineering.
My mast ground wire terminates to the aluminum ground panel in the DX grounding box.
My lightening arrestors are flange mounted to the aluminum panel as well.
This single point panel is then bonded to a supplemental ground rod with #6AWG, which is in turn bonded to the AC ground rod with #6AWG, per NEC.