Description / Abstract: This document contains Minimum Operational Performance Standards for single-frequency airborne navigation sensor equipment not augmented by ground or space-based systems. The standards define minimum performance, functions and features for GPS sensors that provide position information to a multisensor system or separate navigation system. They also address Area Navigation (RNAV) equipment to be used for the en route, terminal, and Lateral Navigation (LNAV) phases of flight.

The basis for this document is RTCA/DO-229D - MOPS for GPS/WAAS Airborne Equipment, Class Beta 1 receiver without SBAS requirements.

In comparison with the older GPS MOPS - RTCA/DO-208... the document reflects:

1. An updated signal operating environment (updated interference environment),
2. The absence of Selective Availability (SA) (which was turned off on May 1st 2001 as a result of a Presidential Directive),
3. Updated RAIM (Receiver Autonomous Integrity Monitoring) for GPS and,
4. Optional GPS receiver velocity accuracy and velocity FOM (Figure of Merit) computation.

Note: WAAS: Wide Area Augmentation Systems ABAS: Aircraft Based Augmentation System