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A.AIS
B.ECDIS
C.GPS
D.VDR
A.direction of a target
B.distance to a target
C.size of a target
D.shape of a target
A.Bell alarm to warn the user
B.Lighted alarm signal to warn the user
C.Alternate signal keying system
D.View finder for each station
A.Less signal energy is necessary for receiver operation
B.More signal energy is available at the receiver
C.It significantly increases the peak power
D.It increases the signal capacity
A.Reflected electron
B.Electrical radiation
C.Quarterpoint electrical navigation
D.Hyperbolic radio navigation
最新試題
（）is not an alarm required by IMO standards to be available on the ECDIS.
What does not contribute to the commercial GPS receiver position error（）.
The information received by AIS will be displayed on（）.
The operator of the ship’s radiotelephone，if the radiotelephone is carried voluntarily，must hold at least a（）.
（）is not a factor which will affect the accuracy of GPS receiver.
To obtain accuracy in fixing by DF，（）and three stations should be used.
Which statement concerning GPS is TRUE（）.
When navigating using DGPS（Differential Global Positioning System）you may expect your position to be accurate to within a radius of（）.
Automatic identification systems（AIS）are required to（）.
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（）.