Harvest SRH 519 VHF/UHF Dual band Antenna (SMA-S Connector) Frequency Range: 144/430Mhz (2M / 70Cm) Impedance: 50 ,Gain 2.15dB, Max Power: 10 Watts V.S.W.R . less than 1.5 Connector: SMA-S (Male) Length: 21 cm