Which of these would be vital to a GMDSS SAR...

Which of these would be vital to a GMDSS SAR situation in polar regions?

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🔍 Key Concepts

• Geographic coverage limits of different satellite systems (Inmarsat vs. COSPAS-SARSAT vs. GOES) • How GMDSS distress alerts are normally sent and which systems are required to work at high latitudes / polar regions • The role of HF (High Frequency) radio for long-range voice communications when satellites may have limitations

💭 Think About

• Which satellite systems lose or degrade coverage as you move toward the poles, and which one is specifically designed for near-global distress alerting, including polar areas? • In a real SAR case in polar regions, what combination would you need: one system to reliably pick up the initial distress alert, and what type of radio system can still handle long-range voice when geostationary satellites are not effective? • Look at each answer choice: which satellite mentioned is actually used for GMDSS distress alerting worldwide, and which supporting voice method makes sense at very high latitudes?

✅ Before You Answer

• Verify which systems (GOES, Inmarsat, COSPAS-SARSAT) are geostationary and which use polar or near‑polar orbits • Check which system is part of the EPIRB distress alerting network specifically intended for global coverage, including polar regions • Confirm whether HF voice or Inmarsat voice would still be reliable close to the poles, based on each system’s coverage limits

🔍 Key Concepts

💭 Think About

✅ Before You Answer