Furuno FCV-1900 - 1.25 Bottom Discrimination Display

1. OPERATION
1-34
1.25 Bottom Discrimination Display
The bottom discrimination display analyzes the bottom echo to categorize bottom
hardness in one of four types (rocks, gravel, sand, mud) and shows the results in a
colorful graphic display. This function requires Bottom Discrimination Sounder
BBDS1.
There are three bottom discrimination displays: graphic, four colors, and probability.
• Graphic display: The most probable bottom material (mud, sand, gravel, rock) is
indicated graphically.
• Four colors display: The most probable bottom material (mud, sand, gravel, rock)
is indicated with four colors.
Hardness legend
Rock
Gravel
SandMud
Bottom
discrimination
display column
Probability bar
Probability bar:
Degree of trust for bottom discrimination display
(Green, Normal; Yellow, Caution; Background
color, Abnormal)
Rock
Gravel
Sand
Mud
Bottom
discrimination
display column
Probability bar
Hardness legend