Furuno CH-500 Operator's Manual page 18

1. OPERATIONAL OVERVIEW
Selecting a Display Mode (only for the CH-600)
The following displays are available with the dual-frequency transducer.
Key Display mode example
x2
DUAL-FREQ HORIZONTAL
360° dual-freq. display of fish echoes,
etc. (Chapter 2)
2 x
DUAL-FREQ. VERTICAL SCAN
Dual-freq. display of vertical section
of fish echoes. Useful for judging
depth and center position of fish
school. (Chapter 3)
+
Choose
HORIZONTAL/HISTORY
The horizontal picture appears in
the main window; the history picture in
the sub window. Useful for showing
history of fish movement, distribution.
+
Choose
HORIZONTAL/VERTICAL ZOOM
The horizontal picture appears in
the main window; vertical zoom
picture in the sub window.
1-6
Key
x2
NAV
DATA
2 x
NAV DATA
+
Choose
LF
HF
NAV
DATA
MIX
Display mode example
DUAL-FREQ. HORIZ. EXPANSION
Expansion of dual-freq. horizontal
display. (Chapter 2)
Depth/Temp. Display
DUAL-FREQ. ECHO SOUNDER
Dual-freq. display of fish echoes
below vessel. (Chapter 4)
HORIZONTAL/VERTICAL SCAN
The horizontal picture appears in the
main window; the vertical fan picture
in the sub window.
Low frequency and high frequency
can be changed with this key.
The mix display compares echo
intensity between low and high
frequencies, and displays echoes
from tiny fish in discriminative colors.
NAV
DATA
or
A-SCOPE A-SCOPE
NAV DATA