In EMER mode, which two functions are connected to the Captain's headset?

In EMER mode, which two functions are connected to the Captain's headset?

• A. VHF COMM 1 and VHF NAV 1
• B. VHF COMM 2 and VHF NAV 2
• C. UHF and VOR
• D. NAV 2 only

Answer: (A)

In EMER mode, the captain’s headset is wired to the primary audio sources the crew rely on most during an emergency: the VHF communications radio and the VHF navigation radio. This means the headset will carry the voice channel for ATC and other flights via the main communications radio (COMM 1) and carry navigation audio from the primary navigation receiver (NAV 1), such as VOR/ILS signals. Having these two sources connected ensures the pilot can both communicate with air traffic control and continuously hear essential navigation cues, even if other systems are degraded or unavailable. Other radio pairs are typically either secondary or dedicated to different roles, so they aren’t the ones routed to the captain’s headset in EMER mode.

In EMER mode, the captain’s headset is wired to the primary audio sources the crew rely on most during an emergency: the VHF communications radio and the VHF navigation radio. This means the headset will carry the voice channel for ATC and other flights via the main communications radio (COMM 1) and carry navigation audio from the primary navigation receiver (NAV 1), such as VOR/ILS signals. Having these two sources connected ensures the pilot can both communicate with air traffic control and continuously hear essential navigation cues, even if other systems are degraded or unavailable.

Other radio pairs are typically either secondary or dedicated to different roles, so they aren’t the ones routed to the captain’s headset in EMER mode.