ATPL: GPS satellites transmit on two L-band frequencies with different types of signals. Which of these are generally available for use by civil aviation?
Domanda 97, Radio Navigation - ATPL - Airline Transport Pilot license
| L1-coarse acquisition (C/A) with selected availability (S/A) |
| L2-for communications purpose |
| L1-precise (P) |
| L2-coarse acquisition (C/A) |
