JETSTREAM JTM3B 145/445 MHZ DUAL BAND MOBILE ANTENNA Jetstream JTM3B 2M/70CM Dual Band Antenna - Length: 40" 2 x 5/8 wave radialless on 445 Mhz 3.0 db on 2m, 5.5 db on 70cm Handles 200 watts 1/2 wave radialless on 2m 146 Mhz