🔍 Key Concepts

• COSPAS-SARSAT primary purpose (global satellite-based search and rescue system) • Normal, proper use of EPIRBs (Emergency Position Indicating Radio Beacons) • What types of traffic are considered distress/safety vs public correspondence

💭 Think About

• Ask yourself: What is COSPAS-SARSAT designed for first and foremost, and who operates/controls it? • Think about how 406 MHz EPIRBs are actually used at sea: what do they send, to whom, and for what purpose? • Consider which options describe correct technical features (frequency, Doppler location methods) versus how the system is allowed to be used (type of messages).

✅ Before You Answer

• Verify the intended use of EPIRBs under GMDSS: are they for routine messaging or only for distress/alerting/location? • Check which frequency modern COSPAS-SARSAT beacons use for distress alerting (121.5 MHz vs 406 MHz). • Confirm whether COSPAS-SARSAT is authorized or designed to carry commercial/public correspondence traffic.