Bottom presentation – Humminbird 700 SERIES 798CI User Manual

Page 35

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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™

Hard Bottom

Rocky Bottom

Soft Bottom

What’s on the Sonar Display

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