Harris Part Number: 12049-0500-01 30MHz - 512MHz Adapter, Antenna to Antenna Base

New in The Package 

PN: 12049-0500-01

NSN: 5985-01-552-9403

Description (not mine): This “T-connector” allows the user to quickly attach an antenna with BNC cable to the AN/PRC-152A handheld radio without disconnecting the broadband whip antenna. The adapter contains TNC-male, TNC-female, and BNC-female connectors. When a BNC cable is connected to the adapter, an internal high-performance switch automatically directs RF signals to the attached BNC device. The adapter is compatible with existing BNC cables.

Allows for connecting to a SATCOM antenna or any suitable antenna with a BNC (Detach) connector.