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What frequencies should I monitor for emergency communications?

April 5, 2026

Quick Answer

For emergency communications, monitor frequencies such as 121.5 MHz for aircraft distress calls and 243.0 MHz for marine distress calls, as well as VHF channels 16 and 22 in coastal areas.

Distress Frequencies

When in a survival situation, it’s crucial to know the international distress frequencies. These frequencies are used by aircraft, ships, and individuals in distress to send out a Mayday call. For aircraft, monitor 121.5 MHz, as this is the international emergency frequency. For marine users, monitor 243.0 MHz, which is the international distress frequency for the maritime community. Keep in mind that these frequencies are for emergency purposes only and should not be used for routine communications.

VHF Channels for Coastal Areas

In coastal areas, VHF channels 16 and 22 are also important to monitor. Channel 16 is used for distress, safety, and calling purposes, while channel 22 is used for specific safety and emergency communications. In areas with dense maritime traffic, these channels can be crucial for staying informed and receiving critical information.

Scanning and Monitoring Techniques

To maximize your chances of receiving a distress call, use a scanning receiver to listen to these frequencies regularly. Set your scanner to continuously scan the frequencies, or use a channel memory to store the most critical frequencies for quick access. Additionally, use a directional antenna to improve reception and increase your range. Remember to stay focused and aware of your surroundings when scanning frequencies, as you may receive other important information or calls.

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