UCM Aviation Aviation Satellite Based Augmentation Systems
SBAS Satellite Based Augmentation System (SBAS): • Augmentation of navigation satellite systems (GNSS). Operational SBAS or Systems being built (beyond study): • WAAS (United States) (Operational) • EGNOS (Europe) (Operational) • MSAS (Japan) (Operational) • SDCM (Russia) (Non-operational) • GAGAN (India) (Non-operational)
WAAS Wide Area Augmentation System (WAAS) • United States • Augmentation of the global navigation satellite system (GNSS). • Operational in 2003.
EGNOS European Geostationary Navigation Overlay Service • Official operations began in 2009. Initial work is being conducted to extend EGNOS to South Africa. EGNOS is interoperable with WAAS and MSAS.
MSAS Multi-functional Satellite Augmentation System • Japanese • Commissioned for aviation use in 2007. QZSS – Quasi Zenith Satellite System Designed for mobile devices within Japan. MTSAT - Multifunctional Transport Satellites Weather and aviation control satellites used by Japan and Australia.
SDCM System of Differential Correction and Monitoring • Russian • Currently launching satellites and building ground stations.
GAGAN GPS aided geo augmented navigation (GAGAN): • Indian • Proposed/planned implementation, not currently operational. • Operational in 2014 (planned). The system will be compatible with other SBAS systems such as WAAS, EGNOS and MSAS providing seamless air navigation across regional boundaries.
GIA63W Notes: When checking SBAS on the G1000 you may have seen: • EGNOS • MSAS • WAAS The G1000 is capable of receiving signals from all three SBAS systems.
G1000 Notes: WAAS Approaches: • In order to fly a WAAS approach (LPV) you must verify/activate WAAS PRIOR TO LOADING the approach. • Checking SBAS for WAAS selection after loading the approach will not enable a WAAS approach. • The system cannot upgrade from LNAV to LPV after the approach has been loaded.