UK CAA Allow Portable ADS-B Operation
The UK Civil Aviation Authority (CAA) has cleared portable Electronic Conspicuity (EC) devices to transmit ADS-B data on 1090MHz, when carried in an aircraft also operating a 1090MHz transponder, including Modes A, C, and S. The clearance was notified in an Air Information Circular (AIC 141/2019) released on 19 December 2019. Aircraft transponders operate on the International Civil Aviation Organization (ICAO) standard frequency of...