What happens to mode A/C/S interrogations when the ADS-B transponder is on the ground?

When the ADS-B transponder is on the ground, it inhibits replies for mode A/C/S interrogations. This behavior is designed to reduce unnecessary transponder traffic and minimize the risk of confusion in the airspace around airports, where a large number of aircraft may be close together on the ground. By inhibiting responses while on the ground, the system conserves bandwidth and ensures that only relevant airborne aircraft are actively responding to interrogations.

This functionality is particularly important for maintaining an organized and efficient flow of air traffic, as it helps ground operations avoid cluttering the airspace with data that isn't needed until the aircraft begins its takeoff roll and enters the active airspace.