Furuno GPS NAVIGATOR GP-150 - Manual (Page 95)

AP-27
WHAT IS WAAS?
WAAS, available in North America is a provider in the worldwide SBAS (Satellite
Based Augmentation System) navigation system. CBAS provides GPS signal
corrections to SBAS users, for even better position accuracy, typically better
than three meters. There are three more SBAS providers, MSAS
(Multi-Functional Satellite Augmentation System) for Japan, EGNOS (Euro
Geostationary Navigation Overlay Service) for Europe and GAGAN (GPS And
GEO Augmented Navigation) for India. The illustration below shows the
coverage area. (Accuracy may be affected when using a GEO satellite not within
your current location.) This manual uses “WAAS” for these three providers
generically.
WAAS
MSAS
EGNOS
GAGAN
Provider Satellite type Longitude Satellite No.
Intelsat Galaxy XV 133°W 135 WAAS
TeleSat Anik F1R 107.3°W 138
Inmarsat-3-F2/AOR-E 15.5°W 120
Artemis 21.5°E
124
EGNOS
Inmarsat-3-F5/IOR-W 25°E 126
MTSAT-1R 140°E 129
MSAS
MTSAT-2 145°E 137
GAGAN Inmarsat-4-F1/IOR 64°E 127