Frequency Range: 180-186/204-210MHz VSWR: <=2.0 Input Impedance: 50ohms Gain: 3.5dBi Polarization: Vertical Maximum Input Power: 50W Connector Type:MCX-Straight Lighting Protection: DC ground Antenna Color: Black Cable type:RG-174 Cable length:3m or required Height:305mm Base size: dia.31.6mm Working Temperature: -40~+60 Centigrade