Mayday Call and Distress Message
Delivering the standard Channel 16 Mayday call, vessel identity and distress message clearly after a DSC alert.
How to prepare for the Marine Radio SRC
Build from station licensing and radio controls to disciplined voice and DSC traffic, then rehearse distress, urgency, safety, false-alert and GMDSS decisions on training equipment.
Core concepts
Concept 1
The Mayday call establishes distress priority and clearly identifies the vessel before the detailed message.
Exam cue: Use the official sequence rather than composing a narrative under stress.
Concept 2
The distress message repeats Mayday and identity, then gives position, nature of distress, assistance required, persons onboard and other useful information.
Exam cue: Give position early, with latitude and longitude or an unambiguous alternative.
Concept 3
The operator speaks slowly and clearly, repeats or updates critical information as required and ends with Over while listening for Coastguard or other assistance.
Exam cue: State persons onboard and immediate hazards that affect rescue planning.
Risk pitfalls and guardrails
Giving a long story before vessel identity and position.
Guardrail: Do not present the 601-item authoring target as an official RYA paper and do not treat static study as a substitute for the recognised written and practical examination.
Omitting the assistance required or number of persons onboard.
Guardrail: Do not present the 601-item authoring target as an official RYA paper and do not treat static study as a substitute for the recognised written and practical examination.
Ending the distress exchange with Out while waiting for a response.
Guardrail: Do not present the 601-item authoring target as an official RYA paper and do not treat static study as a substitute for the recognised written and practical examination.
Memory anchors
Mayday Three
Open the distress call with Mayday repeated three times.
This Is Three
Identify the calling vessel clearly before the detailed message.
MIPDANIO
Mayday, Identity, Position, Distress, Assistance, Number onboard, Information, Over.
Position Early
Rescuers need to know where the casualty is.
Over
Remain listening because a reply and instructions are expected.
Checkpoint rule
Do the check-up only after you can summarize each concept in one sentence and identify one dangerous pitfall from memory.
Knowledge Check (after reading)
Short check-up to confirm understanding of this module.
Check-up Questions
How does the standard Mayday voice call begin?
What follows the opening Mayday repetition in the distress call?
Answer all questions to submit.
Next step personalized recommendations
Continue learning
Move forward only after this module is stable.
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