Pilot Institute

FEBRUARY 28, 2025

Lets say youre cruising at 10,000 feet when Air Traffic Control (ATC) instructs you to “squawk 1200.” Pilots and ATCs daily use transponder codes, also known as squawk codes. Lets examine the key transponder codes, what they mean, and how useful they can be when used correctly.

Transponder 52

Transponder Air Traffic Control Visual Flight Rules True Airspeed 52

Universal Weather

JANUARY 24, 2025

be equipped with an appropriate transponder with ADS-B Out capabilities that performs to the Minimum Operational Performance Standards of RTCA DO-260B, or newer; and have antenna capability for broadcast toward both ground-based as well as space-based ADS-B receivers. For more information, see AIP ENR 1.6.3.

True Airspeed 59

True Airspeed Instrument Flight Rules Knot Air Traffic Control 59

Universal Weather

APRIL 9, 2024

be equipped with an appropriate transponder with ADS-B Out capabilities that performs to the Minimum Operational Performance Standards of RTCA DO-260B, or newer; and have antenna capability for broadcast toward both ground-based as well as space-based ADS-B receivers. For more information, see AIP ENR 1.6.3.

True Airspeed 52

True Airspeed Instrument Flight Rules Knot Air Traffic Control 52

Pilot Institute

NOVEMBER 5, 2024

The flight plan informs the Air Traffic Control (ATC) of your planned course, aircraft capability, and contingency plan. True airspeed. The Traffic Collision Avoidance System (TCAS) and Traffic Advisory System (TAS) provide important information about other airplanes in the vicinity. Type of flight.

Flight Plan 52

Flight Plan Pilot Weather Approach 52