SPACE-BASED ADS-B (SBA)
Pilot/Controller Glossary with JO 7110.65BB, Change 3, effective July 9, 2026 · Official text on faa.gov
A constellation of satellites that receives ADS-B Out broadcasts and relays that information to the appropriate surveillance facility. The currently deployed SBA system is only capable of receiving broadcasts from 1090ES-equipped aircraft, and not from those equipped with only a universal access transceiver (UAT). Also, aircraft with a top-of-fuselage-mounted transponder antenna (required for TCAS II installations) will be better received by SBA, especially at latitudes below 45 degrees.
See AUTOMATIC DEPENDENT SURVEILLANCE-BROADCAST (ADS‐B); AUTOMATIC DEPENDENT SURVEILLANCE-BROADCAST OUT (ADS-B Out).