Which device is responsible for autotuning navigation radio frequencies?

Which device is responsible for autotuning navigation radio frequencies?

• A. FMGC
• B. FMGS
• C. MCDU
• D. FD

Answer: (B)

Autotuning navigation radio frequencies is handled by the Flight Management Guidance System. The FMGS coordinates navigation and guidance, automatically setting the NAV radios to the correct frequencies for the active route or approach when you program or select it in the MCDU. The FMGCs provide the computational backbone for the FMS, the MCDU is just the data-entry interface, and the Flight Director offers steering cues without managing radio tuning. So the FMGS is the component that performs the autotuning.

Autotuning navigation radio frequencies is handled by the Flight Management Guidance System. The FMGS coordinates navigation and guidance, automatically setting the NAV radios to the correct frequencies for the active route or approach when you program or select it in the MCDU. The FMGCs provide the computational backbone for the FMS, the MCDU is just the data-entry interface, and the Flight Director offers steering cues without managing radio tuning. So the FMGS is the component that performs the autotuning.