Which of the following is NOT a DSC watch...

Question 1 of 27070eDGw70bARDGLFdyZGK5w

Which of the following is NOT a DSC watch frequency?

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Question 1 of 27070

Q

Which of the following is NOT a DSC watch frequency?

🔍 Key Concepts

• Digital Selective Calling (DSC) watch frequencies used for distress and safety calling • Difference between DSC frequencies and voice distress frequencies in MF/HF bands • Typical MF/HF GMDSS distress and safety channels

💭 Think About

• Look at each option and ask yourself: is this used for DSC digital calling, or is it better known as a voice distress frequency? • Recall the classic international voice distress frequency historically associated with MAYDAY on MF; compare that with the standard MF DSC distress frequency. • Think about which HF bands (4, 6, 8, 12, 16 MHz, etc.) are commonly paired with both DSC and radiotelephony channels—does one of these numbers stand out as a voice-only channel?

✅ Before You Answer

• Verify which MF frequency around 2 MHz is designated for DSC and which is for voice distress under GMDSS. • Check whether 6312.0 kHz and 12577.0 kHz appear on standard lists of HF DSC distress and safety frequencies. • Confirm that the frequency you select as NOT a DSC watch frequency is primarily used for radiotelephony (voice), not digital calling.