What is the average range of NAVTEX transmitters?
A. 50-100 nautical miles from shore.
B. 350-1000 nautical miles from shore.
C. 30 nautical miles from shore.
D. 200-400 nautical miles from shore.
查看答案
The ship sailing in area A4has to be provided with the _________ equipment.
A. MF/HF/VHF
B. MF/HF
C. MF/VHF
D. VHF/MF/INMARSAT
What is the minimum requirement of a GMDSS operator in sea area A2?
A. Restricted Operator's Certificate
B. General Operator's Certificate
C. Second Class Radio Electronic Certificate
D. First Class Radio Electronic Certificate
What is the minimum operator license required to perform or supervise the performance of (SBM)Shore-Based Maintenance in sea area A3?
A. Second Class Radio Electronic Certificate.
B. Restricted Operator's Certificate.
C. First Class Radio Electronic Certificate.
D. GMDSS General Operator's Certificate.
How to prevent the reception of unwanted broadcasts by vessels utilizing the NAVTEX system?
A. Operating the receiver only during daytime hours
B. Programming the receiver to reject unwanted broadcasts
Coordinating reception with published broadcast schedules
D. Automatic receiver de-sensitization during night hours
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