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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.
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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 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.
NOTE:A sloping bottom will be represented as a thicker line across the display. Also, harder
bottoms will be displayed with red and softer bottoms will be displayed with blue.
The sonar returns from the bottom, structure and fish can be represented as either
WhiteLine® or Structure ID®. See Sonar X-Press™ Menu: Bottom View for details on
how to set the bottom view.
Structure ID® represents weak returns in
blue and strong returns in red.
M77_Man_Eng_531350-1_B.qxd 1/3/2005 4:29 PM Page 16