What channel should the caller switch to when aboard a vessel?

When a caller is aboard a vessel and needs to communicate, they should switch to VHF Radio Channel 16. This channel is designated as the international distress, safety, and calling channel for maritime communication. It is monitored continuously by the Coast Guard and other vessels, ensuring that emergency transmissions can be received promptly.

Using VHF Radio Channel 16 is critical for safety, as it provides a direct line for urgent marine communications, including distress calls, thus enabling swift responses to emergencies at sea. Other channels may not be monitored at all times or may be designated for specific types of communications, making Channel 16 the most appropriate choice for immediate assistance or reporting an incident while out on the water.