Harvest SMA24 dual band Flexible VHF/UHF Dualband Antenna (SMA-male) Frequency Range: 144/430Mhz (2M / 70Cm) Impedance: 50 ohm Gain 2.15dB(145mhz), 3.4dB(435mhz) Max Power: 20 Watts V.S.W.R . less than 1.5 Length: 15.7 inch (40cm) Connector: SMA Male