Frequency Range:450~470MHz VSWR <=1.5 Gain:11dBi Half-power beam width Horizontal:75癡ertical:56? Front-to-Back Ratio: >15dB Impedance:50 ohms Maximum Input Power:100W Lightning Protection DC Ground Connector:N-K or required Antenna weight(with calble):1050g Cable length:15m Antenna Length/width:855/370mm Rated Wind Velocity:210 km/h Ambient temperature:-40~+60 Centigrade Ambient humidity:5%-95% Number Of Element:6