Description Of Sounder Displays - Furuno 1823C Operator's Manual

4.2.2

Description of sounder displays

Single-frequency display
Zero line
Icons (alarm,
battery,
simulation)
Color bar
Temp.
scale
Water
temp.
graph
Water
temp.
display
Depth
Note: The water temperature display requires an appropriate water temperature
sensor. It can be turned on or off with TEMPERATURE GRAPH on the
SOUNDER MENU.
Selecting transmission frequency
The single frequency display shows either the LF (low frequency) picture or HF
(high frequency) picture. To select transmission frequency, press the FREQ
LF/HF soft key. "LF" or "HF" is highlighted on its key label with each press of the
key.
Variable Range Marker
(White)
Minute marker
S I
M
° F
50
40
30
120
LF
Tx frequency
Indications on the single frequency display
4. VIDEO SOUNDER OPERATION
Depth scale
Time
0'30" 0
SOUNDER
SINGLE
50.0
SHIFT
50
Fish
AUTO/
Cross-hair
echo
D.BOX
cursor
100
FREQ
LF/HF
DISPLY
150
MODE
200
Bottom echo
Display mode
SOUNDER DUAL
SOUNDER SINGLE
SOUNDER M. ZOOM
SOUNDER B. ZOOM
SOUNDER B/L
SOUNDER B/D
Soft keys
4-3