单项选择题
A.magnetron B.receiver C.indicator D.modulator
The radar component that produces the synchronizing sig...
单项选择题The radar component that produces the synchronizing signal and triggers the indicator sweep is which of the following?（）.
A.transmitter B.antenna system C.indicator D.modulator
The transmission time duration of a single pulse of rad...
单项选择题The transmission time duration of a single pulse of radio-frequency energy is a function of the（）.
A.persistence B.pulse repetition rate C.pulse length D.resolution
You are using a radar in which your own ship is shown a...
单项选择题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?（）.
A.Relative B.TRUE C.Compass D.Magnetic
