Pilot/Controller Glossary
AIRPORT SURVEILLANCE RADAR
This reproduces published FAA reference text for study. It does not replace the current official FAA publication or regulation.
Approach control radar used to detect and display an aircraft's position in the terminal area. ASR provides range and azimuth information but does not provide elevation data. Coverage of the ASR can extend up to 60 miles.
Retrieved from ecfr.gov on July 18, 2026.