GMDSS Emergency Procedures and Coordination Flashcards
6 cards from real GMDSS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 GMDSS Emergency Procedures and Coordination flashcards as text
What is a Rescue Coordination Centre (RCC) responsible for in a GMDSS emergency?
Answer: Coordinating search and rescue operations for maritime emergencies
An RCC is responsible for coordinating SAR operations, alerting SAR resources, and managing communications during a maritime emergency.
What information must be included in a DSC distress alert?
Answer: MMSI, nature of distress, position, time of position
A DSC distress alert must include the vessel's MMSI, nature of distress, last known position (lat/lon), and time of that position.
How often should a vessel update its DSC controller with its current GPS position?
Answer: Every 4 hours manually or automatically via GPS link
DSC controllers should be updated with current position every 4 hours, either manually or via automatic GPS interface, to ensure accurate distress alerts.
What is an MMSI number and how many digits does it contain?
Answer: Maritime Mobile Service Identity — 9 digits
An MMSI (Maritime Mobile Service Identity) is a unique 9-digit number assigned to a vessel's radio equipment for DSC identification.
When should a vessel broadcast a MAYDAY RELAY?
Answer: When it receives a distress message but the distressed vessel needs help relaying to shore
A MAYDAY RELAY is transmitted when a vessel receives a distress message but the distressed vessel cannot contact shore authorities directly.
After a false GMDSS distress alert is transmitted, what must the vessel do?
Answer: Immediately cancel the alert on DSC and contact the RCC on voice radio
After a false distress alert, the operator must immediately cancel it on DSC and contact the RCC via voice radio on Ch 16 or 2182 kHz to confirm the alert was unintentional.
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