Distress & Mayday

• Recognise the distress threshold early and choose Mayday when a vessel or person is in grave and imminent danger and immediate assistance is required.
• Distinguish the distress alert, voice distress call and distress message, then use the identity sequence without dropping the second MAYDAY or the registered identifiers.
• Complete the immediate sequence after a DSC distress alert instead of waiting silently for the digital alert to solve the emergency.

A self-guided revision companion that explains essential concepts, then helps you practise and test them. It supports—but does not replace—recognised instruction, practical training, assessment or certification. Access is a one-time payment, not a subscription.