Furuno DFF-3D Operator's Manual page 39

Cross section display
Tap the cross section display icon
on the home screen to show the
cross section display.
The cross section display, shows
seabed and underwater conditions.
This multi beam sonar uses a 120°
beam (downward to port 60°; downward to starboard 60°), providing highly accurate
underwater images.
Depth Depth
scale scale
Depth
3D sounder history display
Tap the 3D sounder history display icon on the home screen to show the D sounder
history display.
The 3D sounder history provides a 3D graphic of the past seabed and underwater
echoes detected by your vessel. The display can be used to detect schools of fish.
Depth/Color Shading
color scale
Depth
Horizontal range scale Horizontal range scale
Underwater Underwater
Port Port Downward Downward
Max. display depth Max. display depth
Frequency Frequency
Depth scale Depth scale
School of fish School of fish
Max. display depth Max. display depth
Frequency Frequency
PORT
Transducer Transducer
position position
Starboard Starboard
Seabed Seabed
Grid Grid
Own ship Own ship Horizontal range scale Horizontal range scale
Seabed Seabed
4. OPERATION
STBD
School of
fish
Seabed
4-3