Used by ATC for establishing identification, control and separation using a target depicted on an air traffic control facility’s video display that has met the relevant safety standards for operational use and received from one, or a combination, of the following surveillance sources:
- Radar (See RADAR.)
- ADS‐B (See AUTOMATIC DEPENDENT SURVEILLANCE-BROADCAST.)
- WAM (See WIDE AREA MULTILATERATION.)
Source FAA Pilot/Controller Glossary · checked 2026-08-25