ATPL: The Ground Proximity Warning System (GPWS) is a system working according to a height span ranging from:
Domanda 160, Aircraft General Knowledge - Instrumentation - ATPL - Airline Transport Pilot license
| 50 ft to 2 500 ft |
| The ground to 500 ft |
| 30 ft to 5 000 ft |
| The ground to 1 000 ft |
