A、sensitivity time control (sea-clutter control)
B、receiver gain control
C、brilliance control
D、fast time constant (differentiator)
更多“The radar control that reduces weak echoes out to a limited distance from the ship is the（）.”相关的问题
A、increase the brilliance of the PPI scope B、turn off the interference controls on the radar C、use the maximum available range setting D、increase the radar signal output
A、sensitivity time control (sea clutter control) B、receiver gain control C、brilliance control D、fast time constant (differentiator)
A、Only a radar expert can determine if the radar is operating B、All radars have indicator lights and alarms to signal improper operation C、A radar range compared to the actual range of a known object can be used to check the operation of the radar D、The radar resolution detector must be energized to check the radar
A、Raising the antenna height increases the radar range B、The ability of radar to detect objects is unaffected by weather conditions C、Radar bearings are less accurate than radar ranges D、Radar should be checked regularly during clear weather to ensure that it is operating properly
A、should never use radar bearings B、should only use radar bearings when the range exceeds the distance to the horizon C、can use radar information from one object to fix the position D、must use information from targets forward of the beam
A、can use radar information from one object to fix the position B、should never use radar bearings C、should only use radar bearings when the range exceeds the distance to the horizon D、must use information from targets forward of the beam
A、the 1st to the 10th B、the 11th to the 20th C、the 1st to the 15th D、the 16th to the last day of such month
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