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
Deviation in a compass is caused by the（）.
The radar component that produces the synchronizing signal and triggers the indicator sweep is which of the following?（）.
You are using a radar in which your own ship is shown at the center，and the heading flash always points to 0°. If bearings are measured in relation to the flash，what type of bearings are produced?（）.
The radar component that generates the radio-frequency energy in the form of short powerful pulses is which of the following?（）.
Compass error is equal to the（）.
The minimum range at which a target can be detected is basically determined by which of the following?（）.
（）should be used during the poor visibility if the radar’s screen shows heavy sea returns.
An electronic depth finder operates on the principle that（）.
（）is on the panel of radar.
A radar display which is oriented，so that north is always at the top of the screen，is called a(n)（）.