Nearly a decade after the FAA published a final regulation describing automatic dependent surveillance-broadcast (ADS-B) Out performance requirements, the rule’s January 2020 compliance date is hard on the horizon. Five months from the deadline, surveys indicate that a majority of aircraft within different aviation segments will be equipped with ADS-B—in some segments, not nearly all that should be. 

As of Jan. 1 2020, aircraft flying in most controlled airspace must have the necessary avionics to broadcast their GPS-derived position, altitude, velocity, identity and other information at once per second to the FAA’s nationwide network of 658 ground radio stations—the function called ADS-B Out. L3Harris Technologies (formerly Harris Corp.) owns and operates the ground infrastructure under a contract with the FAA.