During a category III automatic approach, the position signals in the vertical plane under 200 ft are based on:
Domanda 45, Aircraft General Knowledge - Instrumentation - ATPL - Airline Transport Pilot license
| An altimeter set to the QFE. |
| A radio altimeter. |
| An altimeter set to 1013 hPa. |
| An altimeter set to the QNH. |
