How many HF frequencies are available for DSC Distress related calls?
Official USCG Answer & Rule Citation
Correct Answer: Option D — Five
Five distinct high frequency (HF) bands are allocated for GMDSS DSC distress calling: 4, 6, 8, 12, and 16 MHz bands. Each band features a specific internationally coordinated DSC frequency for robust long-range distress alerting.
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