ADS-B In
ADS-B In is the counterpart to ADS-B Out and refers to the capability of an aircraft to receive and interpret ADS-B broadcasts from other aircraft and ground infrastructure. Although not currently mandated by regulatory authorities, ADS-B In provides valuable benefits to pilots by enhancing their situational awareness and flight safety.
With ADS-B In, aircraft can receive data from nearby traffic that is broadcasting ADS-B Out. This traffic data is displayed on cockpit multifunction displays or portable devices, often integrated with synthetic vision systems or moving maps. Pilots gain a real-time picture of traffic patterns, helping with visual separation and improving their understanding of surrounding airspace.
In the United States, ADS-B In users can also receive additional services via the UAT network. These services include Traffic Information Service–Broadcast (TIS-B), which rebroadcasts data from radar-equipped aircraft that may not be ADS-B Out equipped, and Flight Information Service–Broadcast (FIS-B), which provides in-flight weather, METARs, TAFs, NOTAMs, and other advisory data.
ADS-B In data is often filtered or prioritized to prevent information overload. Algorithms determine which targets are closest or most relevant to the pilot’s current flight path. ADS-B In-capable avionics can include cockpit displays, portable devices like tablets paired with external receivers, or integrated systems like the Garmin GDL 88 or Dynon SkyView.
Visual Aids
- Screenshot or mockup of ADS-B In display showing nearby traffic and weather
- Diagram explaining TIS-B and FIS-B flow from ground stations to aircraft
- Comparative chart of ADS-B In devices and their capabilities