A.only SAR authorities on land
B.all ships in a very large sea area
C.the nearest coast stations and port radios
D.the SAR authorities ashore as well as ships in the vicinity of the casualty
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A.countries
B.states
C.names
D.groups
A.one
B.two
C.three
D.four
A.a dummy antenna
B.a supporting facilities
C.a back-up equipment
D.an antenna
A.one-way
B.two-way
C.double-effect
D.one-effect
A.distress
B.urgent
C.safety
D.general
最新試題
COSPAS-SARSAT is intended to be used for（）.
SOLAS ships shall be equipped with（）.
All coast radio stations（）DSC installed for VHF and HF.
Distress traffic is the communication（）between the station in distress and the ships, aircraft, coast radio stations, coast earth stations and rescue centers participating in the rescue work.
Every lifeboat which is fitted with a fixed two-way vhf radiotelephone apparatus with（）which is separately mounted shall be provided with arrangements for sitting and securing the antenna effectively in its operating position.
Every lifeboat which is fitted with a fixed two-way（）radiotelephone apparatus with an antenna which is separately mounted shall be provided with arrangements for sitting and securing the antenna effectively in its operating position.
The frequency（）the safety message will be transmitted shall be included in DSC safety call.
Can MF/HF radiotelephone receive the MSI sent from the coast stations alone?（）
Please use（）for（）.
What following is not among the function of SOLAS ships?（）