Furuno CH-500, Operator'S Manual

Page: 18 / 109

1. OPERATIONAL OVERVIEW
1-6
Selecting a Display Mode (only for the CH-600)
The following displays are available with the dual-frequency transducer.
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)
DUAL-FREQ. ECHO SOUNDER
Dual-freq. display of fish echoes
below vessel. (Chapter 4)
x2
x2
2 x
2 x
DUAL-FREQ HORIZONTAL
360° dual-freq. display of fish echoes,
etc. (Chapter 2)
DUAL-FREQ. HORIZ. EXPANSION
Expansion of dual-freq. horizontal
display. (Chapter 2)
Key Display mode example Key Display mode example
NAV DATA
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.
NAV DATA
HORIZONTAL/VERTICAL SCAN
HORIZONTAL/VERTICAL ZOOM
The horizontal picture appears in
the main window; vertical zoom
picture in the sub window.
The horizontal picture appears in the
main window; the vertical fan picture
in the sub window.
+
Choose
+
Choose
+
Choose
NAV
DATA
LF
HF
MIX
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.
Depth/Temp. Display
NAV
DATA
or
A-SCOPE
A-SCOPE
NAV
DATA