Description / Abstract: This document contains requirements for interfacing ADS-B avionics to on-board position sources such as GPS and Flight Management Systems. Proper integration and installation of ADS-B equipment into aircraft is essential to successful implementation of ADS-B air-to-ground and air-to-air applications. The Surveillance Transmit Processing (STP) subsystem prepares the required surveillance information from on-board aircraft sensors for the ADS-B Transmit Subsystem. STP is a critical subsystem of the end-to-end system defined in the Minimum Aviation System Performance Standards (MASPS) for Aircraft Surveillance Application (ASA), (RTCA DO-289). The standards defined in this version of the STP MOPS have been scoped to support parameters required for five applications defined in the ASA MASPS:

• Enhanced Visual Acquisition (EVAcq)
• Conflict Detection (CD)
• Airport Surface Situational Awareness (ASSA)
• Final Approach and Runway Occupancy Awareness (FAROA)
• Enhanced Visual Approach (EVApp)