Your marine radio should always be turned on and tuned to VHF Channel 16.
Correct radio procedure can save lives.
Poor radio procedure not only annoys other people but can obstruct search and rescue operations in extreme cases. Good radio procedure may save your life and vessel, or someone else's life and vessel, some day.
What to do if in distress.
Radio procedures provide for two calls to use when trouble strikes: Mayday and Pan Pan. These are are used at sea and in the air. The procedures are similar but you need to know which one to use in which situations.
How to help someone else in distress.
Vessel owners are required to assist other vessels in distress if they can do so. This section shows how you should respond to a Mayday or Pan Pan, and how to send Securité safety messages.