Looking for a pretuned NMO antenna? Amplify your signal with the Tram 200-Watt Pretuned 410 MHz to 490 MHz Black-Nut-Type Quarter-Wave Antenna with NMO Mounting. It features a gold-plated plunger-type contact pin and is 5-1/2 in. tall. Mount sold separately. | Tram | | 200-Watt Pretuned 410-490 MHz Nut-Type Quarter-Wave Antenna with NMO Mounting | Black | Best Buy