The frequency 2174.5 kHz in NBDP service is used for _________.
A. Distress and safety traffic using narrow-band direct-printing telegraphy exclusively
B. Transmissions of information regarding the safety of navigation and weather warnings
C. Distress and safety traffic in radiotelephony
D. Transmissions of the international NAVTEX system
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In general terms, all the media listed below are used to receive MSI, except _________.
A. The international NAVTEX system.
B. The Inmarsat Safety NET system.
C. HF NBDP.
D. GLONASS receivers at sea.
_________ may be provided by Inmarsat Standard-C via traditional facsimile service.
A. Transferring texts
B. Transferring voices
C. Transferring images
D. Transferring pictures
On receipt of a relayed distress alert, ships in the area addressed should establish communication with the concerned to enable the assistance to be coordinated.
A. SAR
B. RCC
C. MSI
D. FEC
Regarding the capability of Class 1 INMARS A T-C MES, _________ is true.
A. Ship-to-shore and shore-to-ship message transfer and distress alerting， and be capable of receiving EGC messages.
B. Ship-to-shore and shore-to-ship message transfer and receiving EGC messages， but is not capable of distress alerting.
C. Ship-to-shore and shore-to-ship message transfer and distress alerting， but is not capable of receiving EGC messages.
Distress alerting and receiving EGC messages， but is not capable of ship-to-shore and shore-to-ship message transfer.
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