Comet SBB-2NMO - 2M/70cm Dual Band Mobile Antenna (NMO) Dualband Mobile Antenna -- Length: 18" 70cm: 3.8dBi 5/8 wave Coverage: 2M, 70cm Max Power: 100 watts -- Connector: NMO -- 2M: 2.15dBi 1/4 wave