Which of the following is not a DSC watch frequency?
Official USCG Answer & Rule Citation
Correct Answer: Option C — 2182 kHz
Under GMDSS, 2182 kHz is the international radiotelephony distress and calling frequency, not a DSC frequency. The designated DSC watch frequencies include 2187.5 kHz (MF), 6312 kHz (HF), and 12577 kHz (HF), which are monitored continuously by DSC receivers.
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