A.The Operator can make fine internal adjustments to the transmitter as long as the output power does not change by more than one percent
B.The Operator is responsible for ensuring that INMARSAT antennas are free of built-up soot and clear of obstacles
C.All levels of maintenance must be performed by a licensed GMDSS Radio Maintainer
D.The Operator may install an EPROM in order to ensure that the equipment continues to operate within legal constraints
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A.Radio direction finder
B.Satellite EPIRBs
C.MF/HF DSC
D.VHF homing device
A.Read the display screen and/or printout
B.Silence the alarm
C.Listen for any follow up voice/telex transmission on the appropriate frequency
D.All of the above
A.In the Captain's office
B.In the sea cabin
C.At the GMDSS operating position
D.Anywhere on board the vessel
A.The safety of navigation or important meteorological warnings
B.The safety of a vessel or a person is in jeopardy
C.A vessel in need of immediate assistance
D.A coast station traffic list
A.ITU Publications
B.The manufacturers instruction manuals
C.Part 90 of the FCC Rules and Regulations
D.Code of Federal Regulations，Title 47，Part 80，Subpart W
最新試題
The advantage of geostationary satellites is（）.
SOLAS ships shall be equipped with（）.
Ship-to-ship distress alerting should be conducted by（）.
（）by an ice-breaker, it is important to maintain a continuous listening watch on the appropriate VHF channel and to maintain a proper look-out for sound and visual signals.
The rescue coordination center may（）on stations which interfere with traffic.
（）will form the basis for distress alerting and safety calling.
The priority of EGC messages is classified by（）.
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 frequency（）the safety message will be transmitted shall be included in DSC safety call.
The quality of EGC messages is（）affected by the position of the ship, the time of reception and climatic conditions.