Antenna Mount Adapter, NMO to Female TNC  Mount a compatible UHF whip antenna to a survey pole or antenna mast with this compact antenna mount adapter. Featuring an NMO antenna mount, female TNC connection, and 5/8-inch threaded base, it provides a convenient interface for external radio antenna setups used in GNSS base station and surveying applications. Key Features NMO antenna mount accepts compatible UHF whip antennas. Female TNC connection interfaces with compatible coaxial antenna cables. 5/8-inch threaded base mounts to compatible survey poles and antenna masts.