On VHF band, DSC installations_____________.
A. should be tested daily with radiation of signals
B. should be tested weekly with radiation of signals
C. should be tested monthly with radiation of signals
D. should be tested without radiation of signals
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DSC is used primarily to_________.
A. transmit and receive distress and safety alerts to and from other ships and shore stations via radio
B. receive weather warnings, navigational notices and other marine safety information
C. Provide routine communications with the shipowner
D. report ships position to search and-rescue authorities via satellite
Acknowledgement of receipt of a DSC alert would be performed by___________.
A. DSC equipment, on the frequency concerned
B. VHF RT equipment, on the frequency concerned
C. SSB equipment, on the frequency concerned
D. all of the above are likely
Which of the following is not a NBDP frequency?
A. 2,174.5 kHz.
B. 4,177.5 kHz.
C. 6,312 kHz.
D. 8,376.5 kHz.
Which statement is correct?
A. FEC requests are first acknowledged by the vessel, s transmitter before broadcasts can be received.
B. FEC mode broadcasts can be received without the transmitter being turned on.
C. Weather broadcasts are always made in ARQ mode.
D. None of the above.
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