🔍 Key Concepts

• GMDSS (Global Maritime Distress and Safety System) and how DSC fits into it • Difference between distress / safety / routine communications • What happens when you press the DSC distress button on a modern VHF or MF/HF set

💭 Think About

• Look for the choice that focuses on the most critical, safety-related function of DSC, not just a convenience feature. • Ask yourself: in an emergency, what does DSC actually do automatically that voice radio alone cannot do as quickly? • Consider which answer describes a function that ALL DSC‑equipped ships must be able to perform under GMDSS.

✅ Before You Answer

• Identify which options describe nice extra services (weather, tracking, routine calls) versus the core emergency role of DSC. • Check which option clearly mentions distress alerts and interaction with other ships or coast stations. • Recall that DSC’s key design goal is rapid, automated alerting, especially in distress, rather than normal chit‑chat or general information broadcasts.