How To Display Seabed Composition (Bottom Discrimination) - Furuno FCV-2100 Operator's Manual

1.20.3

How to display seabed composition (bottom discrimination)

The bottom discrimination display analyzes the seabed echo to categorize hardness
in one of four types (rocks, gravel, sand, mud), then shows the results in a colorful
graphic display. This function requires connection to a DFF1-UHD (or a transducer
compatible with bottom discrimination) and has the following three display formats:
• Graphic display: The most probable seabed composition (mud, sand, gravel, rock)
is indicated graphically.
Mud
Gravel
• Four colors display: The most probable seabed composition (mud, sand, gravel,
rock) is indicated with four colors.
Hardness legend
Mud
Gravel
• Probability display: The most probable seabed composition is indicated in propor-
tion.
Hardness legend
Mud
Gravel
Probability bar: Appears above the bottom
discrimintation display and indicates the
degree of reliability for the bottom discrimination
display (Green, Normal; Yellow, Caution;
Background color, Abnormal)
Bottom
discrimination
display column
Hardness legend
Sand
Rock
Probability bar
Bottom
discrimination
display column
Sand
Rock
Probability bar
Bottom
discrimination
display column
Sand
Rock
1. OPERATION
Graph example
Mud probability
(Approx. 25%)
Sand probability
(Approx. 25%)
Rock probability
(Approx. 50%)
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