What channel is commonly used for emergency communications on VHF radio?

Channel 16 on VHF radio is widely recognized as the international distress, safety, and calling frequency. It is primarily used for emergency communications, making it critical for distress situations at sea. This channel is monitored by all vessels and coast stations, ensuring that emergency calls are heard promptly. When a vessel is in distress, operators are trained to initiate communication on Channel 16 to alert nearby vessels and receive assistance from rescue services.

The reason other channels are less suitable for emergency communications is that they serve different purposes. For example, Channel 9 is often used for non-emergency communications, such as ship-to-ship or ship-to-shore calls. Channels like 22 and 11 are designated for specific uses, such as maritime operational communications or for use by government vessels, but are not intended for emergency situations. Therefore, relying on Channel 16 is essential for effective and immediate help during maritime emergencies.