Full -Protection:The Surge Protector is a -arrester of coaxial construction. The device is designed to absorb the surge of -strikes on an antenna at the top of a building and ground it, thus providing full -protection for transceivers, receivers, etc.When the thunder wave comes, you can sit back and relax High Performance and Multifunctional:The coaxial construction of this device assures excellent high frequency characteristics, wide bandwidth and low loss and VSWR.1/4 wavelength short circuit principle for good -protection effect. Simple structure, strong, easy installation High Safety:Designed with a stress on high safety, this device has a built-in gas-charging surge arrestor elements which discharges and grounds the surge at the moment the surge voltage exceeds a specified level.These arresters are vailable with several coaxial connection schemes and with multiple RF power ratings Repeated Surge Discharge and Recovery:This device makes the actions of surge discharge and restoration as repeatedly as necessary. No replacement is practically needed .Should the surge arrestor elements be damaged, it can easily be replaced with a new elements Specifications: Model: CA-35RS Connector: UHF/UHF Frequency range: 0-3000MHz Voltage standing wave ratio: 1.1 power: 400w Voltage: DC 230A Current: 500A Impedance: 50 ohms Size: 78 x 41 x 20mm / 3.1 x 1.6 x 0.8in Colour: as shown Material: Metal Size: 4.33 x 3.15 x 1.18 inches Package Contents: 1 x -Arrester Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.