A.persistence
B.pulse repetition rate
C.pulse length
D.rotation rate
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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
A.Relative
B.TRUE
C.Compass
D.Magnetic
最新試題
An electronic depth finder operates on the principle that（）.
An ECDIS is required to display which information?（）
An ECDIS is required to display which information?（）
Compass error is equal to the（）.
（）20 targets can be tracked at one time．When maximum tracking capacity is reached，no further acquisitions are possible.
（）is on the panel of radar.
A Doppler speed log indicates speed over ground（）.
Compass deviation is caused by（）.
A radar display which is oriented，so that north is always at the top of the screen，is called a(n)（）.
The transmission time duration of a single pulse of radio-frequency energy is a function of the（）.