MSAS

MSAS provides augmentation information, which improves the accuracy, reliability, and safety of GPS, for aircraft using GPS navigation.

MSAS receives GPS signal at the Ground Monitor Stations and the Monitor & Ranging Stations, checks the operational status of GPS, analyze GPS error and ionospheric delay, and then broadcasts augmentation information through MTSAT (Multi-functional Transport Satellite) from the Master Control Stations.

TESBL manufactured and delivered MSAS under contract with the Civil Aviation Bureau, Ministry of Land, Infrastructure, Transport, and Tourism.

New CNS/ATM systems including MSAS not only improved coverage and accuracy increase air traffic control capacity but also produce the following merits.

  • Increased Safety
  • Direct flight path means less workload for both pilots and controllers resulting in more attention paid to the traffic situation.
  • Increased coverage results in increased use of instrument flight rules.
  • Flexible flight path makes weather deviation easy.
  • Protection of environment
  • Selection of the shortest flight path means fuel savings resulting in a reduction of greenhouse gas emissions.
  • Use of flexible flight path enables noise reduction in noise sensitive areas.