Air Traffic Control Knot True Airspeed 
Universal Weather
JANUARY 24, 2025
or greater and/or max cruising true airspeed (TAS) greater than 250 knots (kts). Aircraft manufactured on or after 01-JAN-2020 and has an MTOW exceeding 12,566 lbs (5,700 kgs) or having a maximum cruising true airspeed (TAS) greater than 250 knots must have ADS-B (Out) 1090 MHz applicable to RTCA DO-260B.
Universal Weather
APRIL 9, 2024
or greater and/or max cruising true airspeed (TAS) greater than 250 knots (kts). Aircraft manufactured on or after 01-JAN-2020 and has an MTOW exceeding 12,566 lbs (5,700 kgs) or having a maximum cruising true airspeed (TAS) greater than 250 knots must have ADS-B (Out) 1090 MHz applicable to RTCA DO-260B.
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