Airborne Collision Avoidance System (ACAS)

Airborne Collision Avoidance System (ACAS)

Guide to ACAS Description Airborne Collision Avoidance SystemAirborne Collision Avoidance System ACAS II is an aircraft system based on Secondary Surveillance Radar (SSR) transponder signals. ACAS II interrogates the Mode C and Mode S transponders of nearby aircraft...