If the vessel is experiencing atmospheric...

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Question 1 of 20DqK94N5HLn7MpOuC0VG7

If the vessel is experiencing atmospheric interference with NAVTEX broadcasts, especially in the tropics, the GMDSS operator should:

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Question 1 of 20

DqK94N5HLn7MpOuC0VG7

If the vessel is experiencing atmospheric interference with NAVTEX broadcasts, especially in the tropics, the GMDSS operator should:

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🔍 Key Concepts

• NAVTEX limitations in range and susceptibility to atmospheric noise, especially near the equator/tropics • Difference between MF (Medium Frequency) and HF (High Frequency) MSI (Maritime Safety Information) broadcasts in GMDSS • Difference between FEC (Forward Error Correction) and ARQ (Automatic Repeat reQuest) telex modes for receiving MSI

💭 Think About

• Which frequency bands are more commonly used for NAVTEX and MSI in coastal vs. long-range/tropical areas? • In heavy atmospheric interference, is it better to rely on a system that requires acknowledgements (two-way) or one-way error correction? Why? • Look at the answer choices: how many HF vs MF frequencies are standard for MSI, and which are actually associated with tropical coverage?

✅ Before You Answer

• Confirm which MSI frequencies are MF and which are HF, and how many of each are allocated under GMDSS for safety information • Verify which telex mode (FEC vs ARQ) is used for broadcast-type safety messages where the ship is not expected to transmit an acknowledgment • Check whether there is a specific MSI arrangement for tropical regions and whether it uses a single dedicated frequency or one of several allocated channels

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Question 1 of 20DqK94N5HLn7MpOuC0VG7

If the vessel is experiencing atmospheric interference with NAVTEX broadcasts, especially in the tropics, the GMDSS operator should:

Back

Question 1 of 20

DqK94N5HLn7MpOuC0VG7

If the vessel is experiencing atmospheric interference with NAVTEX broadcasts, especially in the tropics, the GMDSS operator should:

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?

Quick actions

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