ATPL: TCAS 2 (Traffic Collision Avoidance System) uses for its operation:
Domanda 163, Aircraft General Knowledge - Instrumentation - ATPL - Airline Transport Pilot license
| The echoes from the ground air traffic control radar system. |
| The echoes of collision avoidance radar system especially installed on board. |
| The replies from the transponders of other aircrafts. |
| Both the replies from the transponders of other aircraft and the ground-based radar echoes. |
