Humminbird Onix Opeartion Manual page 125

Turn on/off Gain Correct
Turn on Gain Correct to automatically tune the transducer signal and filter any clutter that may show up in the Mosaic data.
1. From the Mosaic Menu, select Mosaic Options.
2. Select Gain Correct.
3. Tap the on/off button, or press the ENTER key, to turn it on or off.
Adjust the Sensitivity and Contrast
The sensitivity and contrast can be adjusted while the Mosaic is being recorded or it can be adjusted when a saved Mosaic is loaded
onto the Chart View.
sensitivity set high to
display weak returns
contrast set high,
accenting the light
and dark parts of the
Mosaic history
Adjust the Sensitivity and Contrast
1. From the Mosaic Menu, select Sensitivity or Contrast.
2. Press and hold the slider, or turn the Rotary dial, to adjust the setting.
Sensitivity
Contrast
Adjusting the Sensitivity and Contrast
Sensitivity controls how much detail is shown on the display and will adjust the sensitivity of
all sonar frequencies. Decrease the sensitivity to eliminate the clutter from the display that
is sometimes present in murky or muddy water. When operating in very clear water or greater
depths, increase the sensitivity to see weaker returns that may be of interest.
Adjust the Contrast setting to accent the light and dark parts of the Mosaic data to provide
greater definition.
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Mosaic
Mosaic