What frequency should be monitored during communication failure?

What frequency should be monitored during communication failure?

• A. 121.5 MHz
• B. 123.0 MHz
• C. 118.5 MHz
• D. 123.45 MHz

Answer: (A)

When radio communication fails, the priority is to switch to the international emergency/guard channel so that distress calls and location information can be heard by search and rescue and ATC. This guard frequency is specifically designated for emergencies and is monitored widely, making it the best way to ensure you can be located and helped. The emergency frequency in aviation is 121.5 MHz, which is why it’s the one to monitor in a failure scenario. The other frequencies are used for normal or non-emergency communications and do not provide the same universal monitoring for distress signals.

When radio communication fails, the priority is to switch to the international emergency/guard channel so that distress calls and location information can be heard by search and rescue and ATC. This guard frequency is specifically designated for emergencies and is monitored widely, making it the best way to ensure you can be located and helped. The emergency frequency in aviation is 121.5 MHz, which is why it’s the one to monitor in a failure scenario. The other frequencies are used for normal or non-emergency communications and do not provide the same universal monitoring for distress signals.