A.one-millionth part of a second
B.one-thousandth part of a second
C.one-hundredth part of a second
D.one-tenth part of a second
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A.persistence
B.pulse repetition rate
C.pulse length
D.rotation rate
A.carrier frequency
B.pulse repetition rate
C.pulse length
D.pulse repetition time
A.magnetron
B.receiver
C.indicator
D.modulator
A.transmitter
B.antenna system
C.indicator
D.modulator
A.persistence
B.pulse repetition rate
C.pulse length
D.resolution
最新試題
（）20 targets can be tracked at one time．When maximum tracking capacity is reached，no further acquisitions are possible.
The radar component that produces the synchronizing signal and triggers the indicator sweep is which of the following?（）.
Gyrocompass repeaters reproduce the indications of the master gyrocompass. They are（）.
A deadhead is a(n)（）.
A radar contact will remain stationary on a relative motion radar display only when it is（）.
What will NOT induce errors into a doppler sonar log?（）
A Doppler speed log indicates speed over ground（）.
A FICTIVE LINE DISPLAYED ON THE RADAR SCREEN SEPARATING THE FAIRWAY FOR INBOUND AND OUTBOUND VESSELS SO THAT THEY CAN SAFELY PASS EACH OTHER defines（）.
（）should be used during the poor visibility if the radar’s screen shows heavy sea returns.
（）the canal transit，the radar was operating.