A.carrier frequency
B.pulse repetition rate
C.pulse length
D.pulse repetition time
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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
A.Relative
B.TRUE
C.Compass
D.Magnetic
A.magnetism from the earth's magnetic field
B.misalignment of the compass
C.magnetism within the vessel
D.a dirty compass housing
最新試題
A Doppler log in the volume reverberation mode indicates（）.
An ECDIS is required to display which information?（）
The microsecond unit of time is used in radar applications. The microsecond represents which of the following?（）.
Deviation in a compass is caused by the（）.
（）20 targets can be tracked at one time．When maximum tracking capacity is reached，no further acquisitions are possible.
A radar contact will remain stationary on a relative motion radar display only when it is（）.
A radar display which is oriented，so that north is always at the top of the screen，is called a(n)（）.
The radar component that generates the radio-frequency energy in the form of short powerful pulses is which of the following?（）.
An ECDIS is required to display which information?（）
Error may be introduced into a magnetic compass by（）.