9
Bottom Presentation
As the boat moves, the unit 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 Bottomsuch as compacted sediment or flat rock appears as a thinner line across the display.
A Soft Bottomsuch 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 Structure ID®or
WhiteLine®. See Sonar X-PressTMMenu: Bottom View for details on how to set the bottom view.
Structure ID® represents weak returns in blue and
strong returns in red.
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.