Which one of the following correctly lists the major ground based components of a Microwave Landing System (MLS)?
Domanda 253, Radio Navigation - ATPL - Airline Transport Pilot license
| Separate azimuth and elevation transmitters, outer and middle marker beacons |
| Separate azimuth and elevation transmitters, DME facility |
| Combined azimuth and elevation transmitter, outer and inner marker beacons |
| 140° |
