NR-770R 144/430MHz(2m/70cm) 300MHz receiving only Gain: 3.0dB(144MHz), 5.5dB(430MHz) Max. power rating: 200W Impedance: 50ohms VSWR: Less than 1.5 Length: 0.98m Weight: 210g Connector: M Type: 1/2wave radialless(144MHz), 2x5/8wave radialless(430MHz