A.Radar
B.GPS
C.DF
D.Satellite Navigator
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A.10 meters
B.20 meters
C.50 meters
D.100 meters
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
最新試題
Would you mind（）your DF?
The correction to be applied to a Loran-C reading when matching a sky wave to a ground wave may be found（）.
（）is a digitized“picture”of a chart.
Which of the following statements is TRUE regarding automatic identification systems（AIS）（）.
Radar makes the most accurate determination of the（）.
With respect to automatic identification systems（AIS），which information is expected to be broadcast every 1 to 10 seconds（）.
The（）transmits own ship data cyclically via two defined VHF channels and receives the same data of the other ships and objects that are equipped with AIS systems.
The operator of the ship’s radiotelephone，if the radiotelephone is carried voluntarily，must hold at least a（）.
What does not contribute to the commercial GPS receiver position error（）.
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（）.