A.receive shore-to-ship distress alerting
B.transmit ship-to-shore distress alerting
C.receive message for public correspondence
D.transmit and receive locating signals
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A.an EGC receiver only
B.a satellite communication system
C.a HF radio system
D.a VHF with DSC system
A.English/all distress communications
B.Chinese/some distress calls
C.the language decided by Administration/all distress calls
D.Japanese/some distress alerts
A.countries
B.states
C.names
D.groups
A.200
B.300
C.400
D.800
A.a dummy antenna
B.a supporting facilities
C.a back-up equipment
D.an antenna
最新試題
Radio beacon can be activated（）in case of distress.
The frequency（）the safety message will be transmitted shall be included in DSC safety call.
At least two two-way VHF radiotelephone apparatus shall be provided on every cargo ship of（）tons gross tonnage and upwards but less than 500 tons gross tonnage.
Radio communication（）for many years and helps to save tens of thousands of lives.
What following is not among the function of SOLAS ships?（）
For COSPAS-SARSAT system,（）usually transmit initial COSPAS-SARSAT alert.
The rescue coordination center may（）on stations which interfere with traffic.
By using（）system a ship can send a distress message and know with certainty it will be received.
Can MF/HF radiotelephone receive the MSI sent from the coast stations alone?（）
The advantage of geostationary satellites is（）.