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Preset range levels
Allows for the selection of a specific depth range that is not tied to
the depth of the water.
Custom range
This option allows you to manually set both upper and lower range
limits.
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Note: Setting a custom range puts the sonar in manual
mode. If the bottom is well beyond the lower range set,
you may lose digital depth.
Sonar frequency
The HDS Gen3 unit supports several transducer frequencies.
Available frequencies depend on the transducer model that is
connected.
You can view two frequencies at the same time by selecting dual
Sonar panels from the Home page.
Sensitivity
Increasing Sensitivity shows more detail on the screen. Decreasing
Sensitivity displays less. Too much detail clutters the screen.
Conversely, desired echoes may not be displayed if Sensitivity is set
too low.
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Note: Auto Sensitivity is the preferred mode for most
conditions.
Auto sensitivity
Auto sensitivity automatically adjusts the sonar return to the
optimal levels. Auto sensitivity can be adjusted (+/-) to your
preference while still maintaining the auto sensitivity functionality.
Colorline
Allows the user to adjust the colors of the display to help
differentiate softer targets from harder ones. Adjusting the Colorline
can help separate fish and important structures on or near the
bottom from the actual bottom.
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Sonar | HDS Gen3 Operator Manual