All definitions
« Back to Glossary Index
« Back to Glossary Index
The airborne radar beacon receiver/transmitter portion of the Air Traffic Control Radar Beacon System (ATCRBS) which automatically receives radio signals from interrogators on the ground, and selectively replies with a specific reply pulse or pulse group only to those interrogations being received on the mode to which it is set to respond.
Source FAA Pilot/Controller Glossary · checked 2026-08-25