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
The use of pulse groups and extremely precise timing at each Loran-C station makes possible the use of（）.
What does not contribute to the commercial GPS receiver position error（）.
Radar makes the most accurate determination of the（）.
Automatic identification systems（AIS）are required to（）.
The correction to be applied to a Loran-C reading when matching a sky wave to a ground wave may be found（）.
Loran-C uses the multiple pulse system because（）.
（）is not a factor which will affect the accuracy of GPS receiver.
Which of the following statements is TRUE regarding crane operations（）.
The loran lines drawn on navigation charts represent（）.
Loran-C is which type of system（）.