🔍 Key Concepts

• Difference between a system and a device in maritime communications • The overall purpose of the Global Maritime Distress and Safety System (GMDSS) • Roles of INMARSAT, EPIRB, and GPS within maritime safety and communications

💭 Think About

• Ask yourself which option describes a complete international communications system rather than a single piece of equipment or a satellite provider • Consider which choice is specifically designed to handle distress alerting and coordination of search and rescue (SAR) on a global scale • Think about how the other options support safety (positioning, satellite links, beacons) but may not, by themselves, form a full global distress and SAR communication network

✅ Before You Answer

• Identify which option is defined as a global maritime safety communication system in your study materials • Confirm which items in the list are individual components or services used within a larger system • Verify which choice is explicitly linked to distress alerting, safety information broadcasting, and SAR communications in exam references