ATC Surveillance Source

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:
  1. Radar (See RADAR.)
  2. ADS-B (See Automatic Dependent Surveillance-Broadcast.)
  3. WAM (See Wide Area Multilateration.)

Source: FAA Pilot/Controller Glossary (definition from the 2023 edition; current: Change 1 of 7 August 2025).

Reference: AIM.

See also

Related terms

Glossary last updated 2024-07-25.

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