🔍 Key Concepts
• GMDSS (Global Maritime Distress and Safety System) core functions as listed in SOLAS Chapter IV Regulation 4
• Difference between distress alerting, maritime safety information (MSI), SAR (search and rescue) communications, and general communications
• Role of locating signals vs. routine communications in GMDSS requirements
💭 Think About
• Which three broad capabilities must all GMDSS ship stations have, regardless of the specific equipment fit? Think in terms of: alerting, information for safety, and follow‑up communications.
• Look at each choice: does it clearly include a way to send a distress alert, a way to receive safety information (MSI), and a way to communicate during and after a distress? Which options are missing one of these pillars?
• Are "locating signals" and "bridge‑to‑bridge" explicitly part of the core required functions, or are they more specific capabilities for certain equipment/situations?
✅ Before You Answer
• Verify the three key GMDSS functional areas in SOLAS Chapter IV Regulation 4: 1) distress alerting, 2) reception of Maritime Safety Information (MSI), 3) on‑scene and SAR communications.
• Check which answer choice explicitly mentions distress alerts by at least one means and MSI; eliminate options that do not clearly show both.
• Confirm whether "bridge‑to‑bridge" and "locating signals" by themselves are listed as core GMDSS functions, or as optional/supplementary capabilities.