Feature●Lightning arrester DC-1GHz, UHF-F/F 400W by MFJ●combines the output of the HF/VHF transceiver and the output of the UHF transceiver●separate HF/VHF transmissions from UHF transmissions●Designed for Indoor Use●1 Year Manufacturer WarrantyDescription DC-1000 MHz Lightning Protector, 400W PEP, SO-239/SO-239