Tram’s 1184 140-MHz to 170-MHz VHF/430 to 450 MHz UHF Amateur Dual-Band Antenna provides unity gain on VHF and 2.5-dBd gain on UHF. The antenna stands 17.5-in. tall and has a 3/8-in. x 24 thread mounting. This dual-band antenna comes pretuned (no tuning required or needed) and is designed with premium materials to withstand all types of conditions. It has a black stainless steel whip with open coil to provide visual style as well as a nice, finished look while achieving optimal reception. The mount is sold separately..