Bottom Discrimination Function - Furuno SFD-1010 Operator's Manual

6. Press the MENU/ESC key to close [MENU].

3.16 Bottom Discrimination Function

The bottom discrimination function analyzes the bottom composition (rocks, gravel, sand,
mud) and shows the results in a colorful graphic display. This feature requires a
transducer that supports bottom discrimination, or Bottom Discrimination Sounder BBDS1.
The bottom material information appears at the bottom of the screen when the bottom
discrimination function is turned on. The information can be displayed in all window sizes,
including single frequency display and dual frequency display.
Bottom
discrimination
display
The most probable bottom material is indicated.
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Rock Gravel
Setting
+100
+50
-50
-65
-75
-80
Mud Sand
3. FISH FINDER
Revised size
displayed
2 times
1.5 times
1/2
1/3
1/4
1/5
Probability bar
Indicates the degree of trust for
bottom discrimination display,
with colors.
(Green, Normal; Yellow, Caution;
Background color, Abnormal)
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