How many total frequencies are available for...

Question 1 of 27070FpTqDbh7EOUGsEHFwXba

How many total frequencies are available for DSC Distress alerting?

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Question 1 of 27070

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How many total frequencies are available for DSC Distress alerting?

🔍 Key Concepts

• Digital Selective Calling (DSC) distress alerting frequencies in the GMDSS system • Difference between VHF, MF, and HF DSC distress channels • How many distinct DSC distress frequencies are allocated worldwide (not voice, DSC only)

💭 Think About

• List the DSC distress frequencies you know for VHF, MF, and HF bands, and count how many are specifically designated for distress alerting. • Think about whether any bands have more than one DSC distress frequency (for example, several different HF frequencies). • Separate in your mind: DSC distress frequencies vs. radiotelephone (voice) distress channels like VHF Channel 16 or 2182 kHz.

✅ Before You Answer

• Be sure you are only counting DSC distress frequencies, not voice or general calling channels. • Confirm which HF bands have DSC distress frequencies and whether each one counts as a separate frequency. • Verify that you are including the standard VHF DSC distress channel and MF DSC distress frequency in your total.