A.an EGC receiver only
B.a satellite communication system
C.a HF radio system
D.a VHF with DSC system
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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
A.HF
B.VHF
C.MF
D.MF/HF
最新試題
COSPAS-SARSAT is intended to be used for（）.
All coast radio stations（）DSC installed for VHF and HF.
Ship-to-ship distress alerting should be conducted by（）.
The priority of EGC messages is classified by（）.
Please use（）for（）.
By using（）system a ship can send a distress message and know with certainty it will be received.
What following is not among the function of SOLAS ships?（）
The rescue coordination center may（）on stations which interfere with traffic.
Monitoring is especially important in a highly automated system which is dependent on careful（）procedure and format.
The vessel has stayed in port for seven days because she needs（）.