3-1190-01122-03 Rev. C Garmin GDL 88 ADS-B Transceiver Pilot’s Guide3 GDL 88 ADS-B OUTADS-B Out sends information from the aircraft so it can be “seen” by otheraircraft using ADS-B In equipment and FAA ground stations. ADS–B Out providesair traffic controllers with real-time position information that is, in most cases,more accurate than the information available with current radar-based systems.With more accurate information, ATC will be able to position and separate aircraftwith improved precision and timing.3.1 GDL 88 ADS-B Out DataADS-B Out data is transmitted on the UAT (978 MHz).• GPS position• Altitude• Position Integrity• Ground Track and/or Heading• Ground Speed• Velocity Integrity• Air/Ground State• Identifying information (Transponder Squawk Code, Call sign, ICAORegistration Number, Flight ID), integrity, and capability data.Figure 3-1 GDL 88 ADS-B In and Out