HC 200 350 - 520MHz High Quality SMA MALE or SMA Female dual band antennaFrequency Range: 350 to 520MHz1/4λ,120/150/300/450/800/900MHz receiving onlyImpedance: 50 OHMGain 2.15dBMax Power: 10 WattsV.S.W.R . less than 1.5Length: 7.5 inch / 19 CmConnect..