题目内容

Which satellite system promulgates Maritime Safety Information?

AMVER.
B. NAVTEX.
C. SafetyNET
D. Inmarsat-M SES.

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A. VHF.
B. MF / HF.
C. Inmarsat.
D. NBDP

A. Inmarsat SafetyNet
B. GMDSS sea areas
C. International Vessel Traffic Service
D. Inmarsat Ocean Regions

A. NAVTEX
B. SART.
C. EPIRB.
D. Inmarsat-B.

A. 518 kHz using FEC mode.
B. 4. 209. 5 kHz using FE mode.
C. 486 kHz using FBC mode in China.
D. All of the above.