This antenna, high gain, low VSWR, and superior read and write performance. The antenna anticorrosion ability to adapt to the harsh environment. Frequency: 870^ 960MHz Polarization: Vertical Gain: 15dBi Beam width: E: 14 H: 65 Front-to-rear ratio: e25dB VSWR: d1.5 Impedance: 50 Electrical Down tilt: 0 Maximum power: 500W The first side-lobe width: N/ A The first three passive/ tone 2x43dbm carrier wave : d-150dBc Lightning Protection: DC ground Antenna connector: N Female Connector Place: Bottom side Antenna dimension: 1270x280x125mm Packing dimension: 1600x375x200mm Weight: 9kg Material/ Color: UPVC/ Gray Mechanical tilt: 0-14 Operating Temp: -40 ^ 60 Rated Wind Velocity: 60m/ s Pole diameter: 50^ 75mm