A.10 meters
B.20 meters
C.50 meters
D.100 meters
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A.Satellite clock
B.Ship's speed
C.Atmospheric/ionospheric propagation
D.Receiver
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
最新試題
The line connecting the Loran-C master station with a secondary station is called the（）.
Which statement concerning GPS is TRUE（）.
With respect to automatic identification systems（AIS），which information is expected to be broadcast every 1 to 10 seconds（）.
Would you please（）on the radar?
The receiver uses（）satellites to compute latitude，longitude，altitude，and velocity．
Would you mind（）your DF?
While you are at anchor，what will serve as a positive warning that you are drifting towards the wrecks located to the NW and SW of your 2215 position（）.
Automatic identification systems（AIS）are required to（）.
To obtain accuracy in fixing by DF，（）and three stations should be used.
（）is not a factor which will affect the accuracy of GPS receiver.