Humminbird Matrix 531338-1_A - Manual (Page 11)

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Inverse is a method where weak returns are shown with dark
pixels and strong returns with lighter pixels. This has the
benefit of ensuring that weak signals will be clearly visible on
the display.
Structure ID® represents weak returns as light pixels and
strong returns as dark pixels. This has the benefit of
ensuring that strong returns will be clearly visible on the
display.
WhiteLine® highlights the strongest sonar returns in white,
resulting in a distinctive outline. This has the benefit of
clearly defining the bottom on the display.
Bottom Black displays all pixels below the bottom contour as
black, regardless of signal strength. This has the benefit of
providing a high contrast between the bottom and other
sonar returns on the display. Any targets such as fish,
structure and thermoclines will be shown using the
Structure ID® method.
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Bottom Presentation
As the boat moves, your Matrix™ Fishing System charts the changes in depth on the display
to create a profile of the Bottom Contour. The type of bottom can be determined from the
return charted on the display. A Hard Bottom such as compacted sediment or flat rock
appears as a thinner line across the display. A Soft Bottom such as mud or sand appears as a
thicker line across the display. Rocky Bottoms have a broken, random appearance.
The sonar returns from the bottom, structure and fish can be represented as either Inverse
(default), WhiteLine®, Structure ID®, or Bottom Black. See Sonar X-Press™ Menu: Bottom
View for details on how to set the bottom view.
Bottom Contour Profile with RTS® Window.
Temp/Speed Accessory is optional.
Rocky Bottom
Hard Bottom
Soft Bottom
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