It is a coaxial UHF Lightning Protector that operates over the frequency range of DC-1 GHz. It uses a 90V gas discharge tube to shunt electrical surges and transients to ground, protecting sensitive communications equipment from these events. It is a great UHF lightning protection solution for Ham radio and other lower frequency Antenna. This model features PL259(UHF female) TO SO239 Socket(UHF Female) for mounting through an enclosure wall or the arrestor can be used inline. SO239 259 arrester will pass DC,so SO-239 surge protector is suitable for applications where DC is carried through the coax cable. Both UHF connector ports of this unit are equally protected -- it can be installed in either orientation. A ground lug and terminal on the housing provide superior grounding. Specification: Frequency Range: DC-1GHz Discharge Voltage: DC90V Impedance: 50 ohms VSWR:1.2 Insertion Loss: <0.1 dB Max Power: 200W Max surge voltage let through:200 mV Throughput Energy: 5 nJ Max Current Load: 10A RoHS: Yes Packing : UHF lightning arrestor female to female Bulkhead

5.UHF arresters should be installed as close as possible to the equipment to be protected, often at the point where the coax cable enters the building. They can also be installed near the antenna for additional protection. 4.A great PL259 arrestor to protect your life, protectors offer HF/VHF/UHF other frequency equipment with extremely low loss. They boast an insertion loss of less than. 3. Run a piece of heavy gauge copper wire (8 or 10 gauge) from the grounding screw on the side of the arrestor to a 3 foot minimum length grounding rod driven into the ground. 2.High quality construction,reliable Wide-Band Performance from DC-1GHz, insertion loss 0.1dB and VSWR 1.2 ,Replaceable 90V Gas Tube Element with High Surge Power CapabilityHigh Surge Power Capability. 1.UHF Lightning Arrester,PL259(UHF female) TO SO239 Socket( UHF Female) ,PL-259 Lightning surge protector for Coaxial cable. With ground screw connection for easy install.