Bonding Ground Rod for Rooftop Antenna
I've cleaned up after lightning hits an antenna, and designed spark gaps to protect electronics.  The last thing I'd do is install a lightning rod through my basement.  That stuff should stay outside, irrespective of NEC 810.21(J).  Ground loops are not a serious concern in this particular application.

I'd also consider changing the 8' rod into two 4' rods, which are far easier and safer to drive into the ground.