Plotter/Echo Sounder Display - Furuno GP-3700F Operator's Manual

Displayed in reddish-brown
since high frequency echoes
are red or reddish brown.
11.2.9

Plotter/echo sounder display

This display provides the plotter display and the echo sounder display (single or dual
frequency) at the same time. It is useful for searching schools of fish at cruising speed.
Note that vertical division is also available.
• Horizontal two-way split: Plotter display is displayed on the upper half of the screen
and echo sounder display (single or dual frequency) on the bottom half.
• Vertical two- way split: Plotter display or echo sounder display (single frequency) is
displayed on the left half or right half of the screen.
• Three-way split: Plotter display is displayed on the upper left or right of the screen
and echo sounder display (single or dual frequency) on the bottom half.
Low frequency
(50 kHz)
Blue
Green
Red
Discriminator
Yellow
Reddish-brown Reddish-brown
High frequency
(200 kHz)
Yellow
Reddish- Reddish-
brown brown
Orange
+
These echoes are
likely to be small fish.
Blue
Displayed in blue since high
frequency echo is weaker.
Blue
Plotter display
Echo sounder display
11. ECHO SOUNDER
Green
11-7