What is the primary Air to Ground Distress Frequency?

What is the primary Air to Ground Distress Frequency?

• A. 243 MHz
• B. 157.1 MHz
• C. 2182 kHz
• D. 123.1 MHz

Answer: (A)

Air-to-ground distress relies on a dedicated emergency channel that is continuously monitored for safety between aircraft and ground stations. The main frequency used for this purpose is 243.0 MHz. This channel is reserved specifically for distress calls, emergencies, and safety communications, so it’s the go-to option when immediate assistance is needed and regular channels aren’t usable. Other frequencies shown are allocated for different services and aren’t the primary air-to-ground distress channel. One is tied to maritime distress operations, while the others serve non-emergency aviation or different communication roles.

Air-to-ground distress relies on a dedicated emergency channel that is continuously monitored for safety between aircraft and ground stations. The main frequency used for this purpose is 243.0 MHz. This channel is reserved specifically for distress calls, emergencies, and safety communications, so it’s the go-to option when immediate assistance is needed and regular channels aren’t usable.

Other frequencies shown are allocated for different services and aren’t the primary air-to-ground distress channel. One is tied to maritime distress operations, while the others serve non-emergency aviation or different communication roles.