What is the basic concept of GMDSS?
Official USCG Answer & Rule Citation
Correct Answer: Option D — All of these
GMDSS integrates shore-based authorities and ship-to-ship communications into a unified network. By combining satellite (Inmarsat/COSPAS-SARSAT) and terrestrial (DSC/VHF/MF/HF) systems, it ensures that distress alerts are received by RCCs while simultaneously notifying vessels in the immediate vicinity to facilitate rapid, coordinated search and rescue assistance.
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