Transponder Codes Made Easy: A Pilot’s Survival List
Pilot Institute
FEBRUARY 28, 2025
Lets say youre cruising at 10,000 feet when Air Traffic Control (ATC) instructs you to “squawk 1200.” The transponder is the airborne portion of the Air Traffic Control Radar Beacon System (ATCRBS). In case of radio contact or air intercept, follow the ATCs instructions as much as you can.
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