Question id 337 - Radio Navigation - ATPL - Airline Transport Pilot license

The prescribed IFR-equipment must be in working correctly and the navigation information continuously displayed
The RAIM-function of the GPS receiver must be able to monitor all prescribed navigation systems
The prescribed IFR-equipment must be installed and operational
Multi-sensor systems are not certificated for flights under IFR conditions

Training tests and timed exam simulations ATPL - Airline Transport Pilot license