A.the radio regulations
B.the technical terms and definitions
C.how to operate the GMDSS SES equipment
D.Maritime Communications
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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
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
最新試題
We consider（）send a helicopter with medical facilities to the distress area.
Radiotelephony communication or radio telex communication or both will be carried out by terrestrial or satellite means,（）the equipment fitted on ship and the area in which the incident occurs.
Every ship constructed on or after（）shall comply with all the applicable requirements of this chapter.
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.
For COSPAS-SARSAT system,（）usually transmit initial COSPAS-SARSAT alert.
Radio communication（）for many years and helps to save tens of thousands of lives.
Monitoring is especially important in a highly automated system which is dependent on careful（）procedure and format.
Can MF/HF radiotelephone receive the MSI sent from the coast stations alone?（）
The advantage of geostationary satellites is（）.
The priority of EGC messages is classified by（）.