📢 This glossary was created to be a dynamic version of the Pilot/Controller Glossary published by the FAA. Because the FAA now maintains its own dynamic version of the Pilot/Controller Glossary, this version is no longer updated.
| Term: |
WIDE-AREA AUGMENTATION SYSTEM (WAAS) |
|---|---|
| Meaning: | The WAAS is a satellite navigation system consisting of the equipment and software which augments the GPS Standard Positioning Service (SPS). The WAAS provides enhanced integrity, accuracy, availability, and continuity over and above GPS SPS. The differential correction function provides improved accuracy required for precision approach. |
| Previous Term: | WHEN ABLE |
| Next Term: | WIDE AREA MULTILATERATION (WAM) |