A satellite-based augmentation system (SBAS) is a system that supports wide-area or regional augmentation through the use of additional satellite-broadcast messages. Such systems are commonly composed of multiple ground stations, located at accurately-surveyed points. The ground stations take measurements of one or more of the GNSS satellites, the satellite signals, or other environmental factors which may impact the signal received by the users. Using these measurements, information messages are created and sent to one or more satellites for broadcast to the end users.
Use of Satellite-Based Augmentation Systems (SBAS) has been growing substantially throughout the world, including:
- North America: Wide Area Augmentation System (WAAS)
- Europe: European Geostationary Navigation Overlay Service (EGNOS)
- Japan: Multi-functional Satellite Augmentation System (MSAS)
- India: GPS-Aided Geo-Augmentation Navigation (GAGAN)
This technology is a critical component of the FAA's Next Generation (NextGen) program and the EUROCONTROL SESAR initiative.
"Upgrading" to SBAS involves replacing an existing Flight Management System (FMS) with a new SBAS-capable FMS. As an in-line replacement, the Universal Avionics SBAS-FMS constitutes minor changes to wiring, antenna, keying and configuration when certified for most LPV capabilities. Still, most of the existing wiring may be used. Non-LPV SBAS-FMS installations have lesser changes.
There are plenty of benefits you'll be able to experience with the Universal Avionics SBAS-FMS. Including some mentioned under features, these benefits include:
Approved GPS position input source in accordance with the appropriate TSO for integration with approved transponders for the ADS-B Out mandate
Compatible with SBAS around the world: WAAS, EGNOS, MSAS and GAGAN
Ensures compliance with Precision-Area Navigation (P-RNAV)
Key element of Performance-Based Navigation (PBN) and Required Navigation Performance (RNP) / Area Navigation (RNAV)
User-friendly with more capabilities to reduce pilot workload and increase flight operations efficiency
Training available for SBAS-FMS operators, including free FMS Pilot Operational training for up to two pilots with every new Universal Avionics SBAS-FMS installation and major hardware upgrade.
Enhanced safety provided with the latest TSO'd more accurate SBAS and GPS information to the onboard TAWS/EGPWS and TCAS
Eliminates manual RAIM prediction requirements
Incorporates high-speed Ethernet technology that allows for faster data downloads via the Solid-State Data Transfer Unit (SSDTU)
Fuel savings via more direct routing and direct approaches that eliminate the step-down type approaches
Additional fuel savings with FlexPerf™ Trip Performance
Ability to provide shorter routing to secondary airport due to adverse weather conditions
Avoid database limitations with large database memory
Pilot-Defined and Company Routes Databases save substantial time and offers convenience
Aircraft currently equipped for ADS-B already have the ability to receive traffic information, weather data and flight information
Opening new runways for you with LPV
Key component of Universal Avionics Future Air Navigation System (FANS) solution
Need more information about our SBAS-FMS solutions for your aircraft? Contact Sales