Which channel has been designated for on-scene communications in GMDSS?
Official USCG Answer & Rule Citation
Correct Answer: Option B — 16 and 2174.5
VHF Channel 16 and 2174.5 kHz narrowband direct-printing telegraphy are internationally designated under GMDSS and ITU Radio Regulations for on-scene distress communications between cooperating search and rescue units and vessels involved in an emergency.
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