A.Satellite clock
B.Ship's speed
C.Atmospheric/ionospheric propagation
D.Receiver
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A.Parallel bearings
B.Long-range bearings
C.Short-range bearings
D.Cross bearings
A.High frequency pulses
B.Combinations of high and low frequency pulses
C.The same frequency for all stations in a chain
D.Varied long and short pulses
A.An atomic time standard
B.Daylight Savings Time
C.Eastern Standard Time
D.Greenwich Mean Time
A.one
B.two
C.three
D.four
A.Mate's license
B.Restricted radiotelephone operator permit
C.Second-class radio operator's license
D.Seaman's document
最新試題
To obtain accuracy in fixing by DF，（）and three stations should be used.
Would you please（）on the radar?
Would you mind（）your DF?
The line connecting the Loran-C master station with a secondary station is called the（）.
What does not contribute to the commercial GPS receiver position error（）.
Which of the following statements is TRUE regarding automatic identification systems（AIS）（）.
You are about to go to sea and adjust the magnetic compass．To expedite the adjustment at sea，in what order should the following dockside adjustments be made（）.
Automatic identification systems（AIS）are required to（）.
（）is not a factor which will affect the accuracy of GPS receiver.
In using Loran-C，skywave reception gives greater range but is（）.