What is the action that a GMDSS Radio...

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Question 1 of 20IUku9lxSiGOp8SUzETUV

What is the action that a GMDSS Radio Operator should take when a DSC Distress alert is received requesting J3E?

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Question 1 of 20

IUku9lxSiGOp8SUzETUV

What is the action that a GMDSS Radio Operator should take when a DSC Distress alert is received requesting J3E?

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🔍 Key Concepts

• GMDSS Distress alerting and follow-on communications procedures • Meaning of emission designator J3E in ITU radio regulations (type of transmission and typical use) • Association between a DSC distress alert frequency and its paired follow-on traffic frequency

💭 Think About

• What mode and type of communication does J3E describe: digital (like SITOR/NBDP) or analog radiotelephony? • After a DSC distress alert, on what kind of frequency/mode is the voice distress traffic normally conducted? • Look at each option and ask: does it match the requested follow‑on mode (J3E) and the same band where the DSC alert was received?

✅ Before You Answer

• Verify what J3E stands for (single‑sideband radiotelephony) versus the designation used for SITOR/NBDP • Check which channel or frequency is normally used for DSC watchkeeping and which is used for voice distress traffic • Confirm that the correct action is to maintain a continuous watch on the appropriate follow‑on traffic frequency in the requested mode (J3E), not on the DSC calling frequency itself

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Question 1 of 20

What is the action that a GMDSS Radio Operator should take when a DSC Distress alert is received requesting J3E?

No action is necessary, as the DSC control unit will automatically switch to the SITOR (NBDP) follow-on communications frequency.

The Operator should immediately set continuous watch on VHF channel 70.

The Operator should immediately set continuous watch on the SITOR (NBDP) frequency that is associated with frequency band on which the Distress alert was received.

The Operator should immediately set continuous watch on the radiotelephone frequency that is associated with frequency band on which the Distress alert was received.

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Question 1 / 20IUku9lxSiGOp8SUzETUV

Question 1 of 20IUku9lxSiGOp8SUzETUV

What is the action that a GMDSS Radio Operator should take when a DSC Distress alert is received requesting J3E?

Back

Question 1 of 20

IUku9lxSiGOp8SUzETUV

What is the action that a GMDSS Radio Operator should take when a DSC Distress alert is received requesting J3E?

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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