A lightning rod higher than the tower is ideally connected to a large
copper cable properly grounded with multiple ground rods driven 8 feet
or more into the ground, for everyones safety this groumd must be
connected to the main house ground, at the service entrance, which must
be bonmded to the homes plumbing system and if you have city water the
meter must have a jumper in case its removed for some reason.

multiple grounds that arent bonded together can kill or cause a fire