ATPL: A "close traffic advisory" is displayed on the display device of the TCAS II (Traffic Collision Avoidance System) by:
Domanda 101, Aircraft General Knowledge - Instrumentation - ATPL - Airline Transport Pilot license
| A blue or white empty lozenge. |
| A yellow full circle. |
| A red full square. |
| A blue or white full lozenge. |
