Wilson Electronics Lightning Surge Protector (859902), N-Female (50 Ohm) PROTECT YOUR SIGNAL BOOSTER: The Wilson Electronics Lightning Surge Protector protects your signal booster from lightning strikes. FREQUENCY RANGE: This Wilson Electronics surge protector covers a frequency range of up to 3 GHz. MINIMAL SIGNAL REDUCTION: Attenuation attributed to the Wilson Electronics Lighting Surge Protector is less than 0.2 dB. GROUND CABLE REQUIRED: The Wilson Electronics Lightning Surge Protector requires additional ground cable.