Aviation English
Advanced ATC

What is Satellite-Based Augmentation System?

Satellite-Based Augmentation System A satellite navigation system that augments GNSS signals, providing improved accuracy, integrity, and availability for aviation, including SBAS services like WAAS, EGNOS, GAGAN, and MSAS (ICAO Annex 10, Doc 9849).

Source: ICAO Doc 9432, FAA PCG

How is “Satellite-Based Augmentation System” Used in Practice?

The Satellite-Based Augmentation System provides precision approach capability for equipped aircraft at designated airports.

Certification Exam Relevance

ICAO Level 4ICAO Level 5ICAO Level 6EASA FCL.055

Who Needs to Know This Term?

  • Pilots
  • Air Traffic Controllers
  • Cabin Crew

Related Aviation English Terms

Multi-functional Satellite Augmentation SystemGround-Based Augmentation SystemWide Area Augmentation SystemEuropean Geostationary Navigation Overlay Service

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Frequently Asked Questions

What is Satellite-Based Augmentation System?

A satellite navigation system that augments GNSS signals, providing improved accuracy, integrity, and availability for aviation, including SBAS services like WAAS, EGNOS, GAGAN, and MSAS (ICAO Annex 10, Doc 9849).

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