A.the routing agreement for a particular ocean region
B.The communication service he required
C.the positions of his ship and the CESs
D.B and C
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A.Goonhilly, UK
B.Yamaguchi, Japan
C.Perth, Australia
D.Southbury, USA
A.switch operator
B.communication gateway
C.national operator
D.on-scene commande
A.64.5E
B.178E
C.15.5W
D.54W
A.always move slowly
B.are in one place only
C.sometimes move and sometime don‟t
D.synchronize with the movement of the earth
A.Radio link
B.Space segment
C.Satellite link
D.upper link
最新試題
Before GMDSS, if the radio officer on board is serious ill,（）.
The vessel has stayed in port for seven days because she needs（）.
SafetyNet is an international service for the broadcast and automatic reception of MSI by means of direct-printing through（）system.
By using（）system a ship can send a distress message and know with certainty it will be received.
On-scene communications will normally take place between（）.
Please use（）for（）.
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.
In case a ship is in emergency or distress in any of 4 areas, it is required to use the continuous（）alert.
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.
The rescue coordination center may（）on stations which interfere with traffic.