Which setting can a radar operator adjust to enhance the displayed image quality?

The amplification of received radar return is crucial for enhancing the displayed image quality on radar systems. This setting allows the operator to adjust the sensitivity of the radar to better detect weaker signals, which can occur due to distance or obstacles. By increasing the amplification, the radar can highlight important features, such as other vessels or landforms, against the background noise, making it easier for the operator to interpret the displayed information.

Adjusting amplification helps ensure that even smaller or less reflective targets can be represented on the radar screen. The ability to fine-tune this setting is vital for navigational safety, particularly in challenging conditions such as fog, rain, or when close to land.

Other options like color saturation, compression of images, and resolution settings may influence aspects of the display but do not directly affect the fundamental clarity of the received radar signals. They deal more with visual presentation rather than the actual enhancement of signal detection.