Uploaded April 2014 | Updated September 2026, 9 hours ago

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The most common and basic echo sounder controls are:
The illumination control, which regulates the illumination of the panel and other controls.
The range selector that selects the basic ranges according to the technical specifications.
In position 0 (zero) the echo sounder usually switches off.
The gain control, which regulates the amplification of the received signals.
Using the gain control, we can eliminate the multiple echoes that appear when navigating in shallow waters.