A "Distress Hot Key" VHF DSC Distress alert:

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Question 1 of 20

m65D2HghFiZtd1qoUAJi

A "Distress Hot Key" VHF DSC Distress alert:

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🔍 Key Concepts

• Digital Selective Calling (DSC) purpose and how distress alerts are sent • What Channel 70 is reserved for in the VHF marine band • The relationship between a DSC distress alert and follow‑up MAYDAY voice traffic

💭 Think About

• Ask yourself: Which VHF channel is specifically designated for DSC signaling, and is it used for voice or for digital alerts? • Consider: When you press the DSC distress button, does the radio immediately transmit your MAYDAY voice message, or does it first send a digital alert on a dedicated channel? • Think about: After a DSC distress alert is sent, on what channel is the follow‑up MAYDAY voice communication normally conducted?

✅ Before You Answer

• Verify which channel (Ch-70) is reserved internationally for DSC only, no voice • Check whether a DSC distress alert is required to be transmitted simultaneously on Ch-16 as part of the digital signal, or if Ch-16 is mainly for the subsequent voice MAYDAY • Confirm whether any reputable standard allows manufacturers to choose between Ch-70 and Ch-16 for sending the DSC distress alert itself

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Question 1 of 20

A "Distress Hot Key" VHF DSC Distress alert:

Always goes out on the DSC frequency of Ch-70 to alert other stations.

Must go out on Ch-16 and Ch-70 to indicate "MAYDAY" traffic will follow.

Must go out on Ch-16 to alert the nearest vessels and coast stations of imminent "MAYDAY" traffic.

May go out on Ch-70 or Ch-16 depending on the manufacturer.

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Question 1 / 20m65D2HghFiZtd1qoUAJi

Question 1 of 20m65D2HghFiZtd1qoUAJi

A "Distress Hot Key" VHF DSC Distress alert:

Back

Question 1 of 20

m65D2HghFiZtd1qoUAJi

A "Distress Hot Key" VHF DSC Distress alert:

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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