Why must the GMDSS operator be able to...

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Question 1 of 209Fyp8qZ4rdJksAmHtwzu

Why must the GMDSS operator be able to set-up FEC & ARQ modes and differentiate between them?

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9Fyp8qZ4rdJksAmHtwzu

Why must the GMDSS operator be able to set-up FEC & ARQ modes and differentiate between them?

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🔍 Key Concepts

• ARQ (Automatic Repeat reQuest) is a two-way, error-correcting TELEX mode that requires a return path (handshake) • FEC (Forward Error Correction), including BFEC/SFEC, is a one-way broadcast mode commonly used for MSI (Maritime Safety Information) • In GMDSS, follow-on Distress communications vs. routine/broadcast MSI have different operational needs

💭 Think About

• Ask yourself: which mode (ARQ or FEC) makes more sense when you need a verified two-way link for a specific ship in a Distress follow-on TELEX situation? • Which mode is better suited to broadcasting HF MSI to many ships that may be listening, some of which cannot transmit back? • Look at the answer choices: which one pairs the two-way, handshake-required mode with follow-on Distress TELEX, and the one-way broadcast mode with MSI reception?

✅ Before You Answer

• Verify which mode is two-way with acknowledgments (ARQ vs FEC). • Verify which mode is typically used for HF Maritime Safety Information (MSI) broadcasts (BFEC/SFEC vs ARQ). • Check that the option you pick uses each mode in the situation where its strengths (two-way link vs one-way broadcast) are actually needed.

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Question 1 of 209Fyp8qZ4rdJksAmHtwzu

Why must the GMDSS operator be able to set-up FEC & ARQ modes and differentiate between them?

Back

Question 1 of 20

9Fyp8qZ4rdJksAmHtwzu

Why must the GMDSS operator be able to set-up FEC & ARQ modes and differentiate between them?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

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