Humminbird 141c - Manual (Page 13)

8
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.
The sonar returns from the bottom, structure and fish can be represented as either
WhiteLine® or Structure ID®. See Sonar Menu Tab: 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