Which statement about GMDSS is true?

Which statement about GMDSS is true?

• A. GMDSS is optional for ships under 100 gross tons
• B. Each ship must be able to perform essential safety communications for itself and other ships
• C. GMDSS uses only VHF Channel 16
• D. GMDSS replaces the need for ship-based equipment

Answer: (B)

GMDSS ensures that a vessel can automatically transmit a distress alert, exchange safety information, and coordinate with rescue authorities and nearby ships in an emergency. The statement that each ship must be able to perform essential safety communications for itself and other ships captures how GMDSS is designed to function: every SOLAS-class vessel must have the equipment and procedures to send and receive lifesaving communications, not just on one channel but through a network of systems (DSC on VHF, MF/HF radios, satellite links) and with shore-based rescue coordination centers. This capability is what makes distress alerts reliable and rapid, and it supports coordination during rescues. GMDSS uses more than just Channel 16 and relies on multiple frequencies and satellite connections, providing redundancy and reach for long-distance and coastal communications. It does not replace shipboard equipment; instead, it relies on it—DSC-enabled radios, proper interfaces, and trained crew—to carry out safety communications when needed.

GMDSS ensures that a vessel can automatically transmit a distress alert, exchange safety information, and coordinate with rescue authorities and nearby ships in an emergency. The statement that each ship must be able to perform essential safety communications for itself and other ships captures how GMDSS is designed to function: every SOLAS-class vessel must have the equipment and procedures to send and receive lifesaving communications, not just on one channel but through a network of systems (DSC on VHF, MF/HF radios, satellite links) and with shore-based rescue coordination centers. This capability is what makes distress alerts reliable and rapid, and it supports coordination during rescues.

GMDSS uses more than just Channel 16 and relies on multiple frequencies and satellite connections, providing redundancy and reach for long-distance and coastal communications. It does not replace shipboard equipment; instead, it relies on it—DSC-enabled radios, proper interfaces, and trained crew—to carry out safety communications when needed.