The AN/MPN-14 was a Mobile Ground Approach System which could be configured as a complete Radar Approach Control (RAPCON) or Ground Controlled Approach (GCA) facility. The AN/MPN-14 radar was used by air traffic controllers to identify, sequence, and separate participating aircraft, provide final approach guidance through air defense corridors and zones, and coordinate ID and intent with local air defense units at assigned airports and air bases. These services could be provided in all types of weather.
The AN/MPN-14 was capable of identifying aircraft using secondary radar up to a 200-nautical-mile (370 km) radius and primary radar coverage to 60 nautical miles (110 km). It provided both azimuth and elevation information from 15-nautical-mile (28 km) to touchdown. The unit had three ASR display indicators and one PAR indicator located in the operations shelter, and one each ASR and PAR indicator located in the maintenance shelter. Complete operations were conducted from the operations trailer. The system was limited to a single runway but had the capability of providing opposite direction runway operations with the aid of a transportable turntable.