Use them!
Lightning fields even several miles distant can energize all incoming coax cable (AND telephone wires going to a Sat STB or a computer modem) just as easily as down the power wires into the house. Cabletv coax and external antenna coax also need to pass thru surge protector terminals.
Lightning fields even several miles distant can energize all incoming coax cable (AND telephone wires going to a Sat STB or a computer modem) just as easily as down the power wires into the house. Cabletv coax and external antenna coax also need to pass thru surge protector terminals.