单选题When you turn on the fast time constant (differentiator) control of a radar it will().Aenhance weak target echoes and brighten them on the PPIBreduce clutter over the entire PPI by shortening the echoesConly suppress weak targets to a limited distance from the ship (sea clutter)Dreduce the beam width to provide a map-like presentation for navigation

单选题
When you turn on the fast time constant (differentiator) control of a radar it will().
A

enhance weak target echoes and brighten them on the PPI

B

reduce clutter over the entire PPI by shortening the echoes

C

only suppress weak targets to a limited distance from the ship (sea clutter)

D

reduce the beam width to provide a map-like presentation for navigation


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