When the FAA announced the requirement for the use of Automatic Dependent Surveillance-Broadcast (ADS-B) for GA aircraft, pilots were told this technology would increase aviation safety, as it would replace radar as the primary means for ATC to manage traffic separation.
Instead of having a person watch a radar scope for targets, the GPS on board and ADS-B equipment self-report the aircraft’s position and lets the pilot know the whereabouts of traffic around them. And it has been doing that since its implementation in 2020.
