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3 4.2.2 description of sounder displays – Furuno NAVNET 1823C User Manual

Page 149

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4. VIDEO SOUNDER OPERATION


4-3

4.2.2

Description of sounder displays

Single-frequency display

Color bar

Soft keys

Variable Range Marker
(White)

Depth scale

Tx frequency

Depth

50

30

Temp.
scale

Water
temp.
graph

Water
temp.
display

50.0

°

F

Minute marker

Icons (alarm,
battery,
simulation)

Bottom echo

Zero line

Fish
echo

LF

40

AUTO/
D.BOX

SHIFT

FREQ

LF

/HF

DISPLY
MODE

0

50

100

150

200

120

SOUNDER
SINGLE

Display mode
SOUNDER DUAL
SOUNDER SINGLE
SOUNDER M. ZOOM
SOUNDER B. ZOOM
SOUNDER B/L
SOUNDER B/D

Cross-hair
cursor

0'30"

Time

S

I

M

Indications on the single frequency display

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.