Furuno CSH-7 Operator's Manual [Page 14]: Adjusting The Gain

Furuno color scanning sonar operator's manual model csh-7.

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Adjusting the Gain

The GAIN control adjusts receiver sensitivity (gain). Adjust it

so fish echoes are clearly displayed with minimal noise on the

screen. Too high a setting not only displays excess noise and

makes it difficult to discriminate wanted echoes but also causes

seabed echoes to be painted in strong colors, resulting in echoes

being masked by seabed reflections. Normally, set the control

somewhere between positions "3" and "7".

Gain low

Gain high

Gain proper

Figure 1-6 Gain settings and resulting picture

1-7

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