300w high power vhf uhf nmt cdma single jammer (waterproof & shockproof design, it is specially customized to accommodate a fully integrated broad band jamming system which provides the ultimate solution for military and police convoys or vip protection. At a glance 6 modules are controlled separately and also can work simultaneously. Each module with antenna can be used as a single jammer. The pelican case is portable (can be carried like a suitcase). Can be fixed in car and temporary occasion. Frequency band is optional. With excellent heat dispersion. Specification: 6 bands walky-talky (vhf): Walky-talky (uhf/300mhz)/135-155mhz Walky-talky (uhf/350mhz)/155-175mhz Walky-talky (uhf/400mhz)/300-350mhz Walky-talky (uhf/450mhz)/350-400mhz Cellular nmt/400-440mhz Cellular cdma 450/440-480mhz Total output power:300w Control:each bands can work independently Housing waterproof & shockproof design suitable indoor or outdoor use Size:56*46*27 cm Total system weight:approx 60 kg (with omni directional antennas.) Humidity:up to 80% Operation temperature:-20 ...+50 centigrade degree Antenna type:6pcs external( 2-3dbi ) omnidirectional ( standard ) Shielding range 300 to 500m ( signal strength