When you turn on the fast time constant (differentiator) control of a radar it will（）.<br>A:enhance weak target echoes and brighten them on the PPI<br>B:reduce clutter over the entire PPI by shortening the echoes<br>C:only suppress weak targets to a limited distance from the ship (sea clutter)<br>D:reduce the beam width to provide a map-like presentation for navigation

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

出自：海船船员证

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