How does setting of Gain effect the RADAR or What is meaning of adjusting Gain in RADAR?

Gain affects the receiver and not the display as the brilliance does. Turning up the gain increases the amplification of the incoming signal, making weak echoes look stronger, but confusing the display with background speckle or noise, similar to the background crackling of an ordinary radio. Turning down the gain will reduce the sensitivity of the receiver and reduce the noise, but care must be taken not to overdo as weak or distant echoes can be lost.


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