Features 1.FEMALE TO FEMALE: Coaxial UHF lightning arrester (UHF female) socket to socket (UHF female), coaxial cable lightning surge protector. With ground screw connection for easy installation. 2.METHOD OF INSTALLATION: Connect a thick copper wire (8 or 10 gauge) from the grounding screw on the side of the arrester to a ground rod driven into the ground with a minimum length of 3 feet. 3.LOW LOSS: UHF lightning arrester from DC 3GHz for reliable broadband performance, insertion loss 0.1dB and VSWR 1.2, replaceable 90V gas tube element with high surge power capability. 4.APPLICABLE: Lightning surge protector provides extremely low loss HF VHF UHF other frequency equipment. Suitable for CB radios, HAM radio equipment and two way base stations. 5.INSTALLATION LOCATION: Lightning arrester is installed as close as possible to the equipment to be protected, usually at the location where the coaxial cable enters the building, or it can be installed near the antenna to provide additional protection. specificationItem Type: Lightning Arrester_x000D_ Material: Metal_x000D_ Frequency Range: DC 3GHz_x000D_ Discharge Voltage: DC 90V_x000D_ Impedance: 50 Ohm_x000D_ Insertion Loss: