Surge Protector (Coaxial Lightning Arrester) Coaxial surge protectors are used in RF systems to protect communication equipment from lightning-induced electromagnetic pulses, surge overvoltages, and operational transients. Widely applied in wireless coverage, base stations, cable TV, satellite TV, and GPS systems, these protectors feature a wide frequency range, low insertion loss, and low VSWR, ensuring effective lightning protection without compromising signal transmission.