Furuno FCV-588, Operator'S Manual

Page: 30 / 80

1. OPERATION
23
[ Bottom Zone ]: Set the area where to display
the bottom echo when selecting the [Auto]
mode on the
RANGE key.
Note: The bottom discrimination feature must
be disabled to use this feature.
1. Select [Bottom Zone], then press the EN-
TER key.
[Bottom zone] setting window
2. Use

or

to select the border desired
([Above] or [Below]).
3. Use

or

to move upper or lower bor-
der, then press the ENTER key.
[ TX Power ]: Interference may appear on the
screen when an echo sounder having the
same frequency as your own is being operat-
ed in the vicinity of your vessel. In this case,
lower your TX power and contact the vessel to
request them to reduce their TX power. The
higher the numeric (percentage) the greater
the TX power. The [Auto] setting automatical-
ly adjusts TX power with depth. The [Off] set-
ting disables transmission.
Note: The bottom discrimination and
ACCU-FISH
TM
functions must be disabled to
use other than [Auto]. If one of those features
is active, the TX power setting is automatically
set to [Auto].
[ TX Rate ]: Change pulse repetition rate. Nor-
mally, the highest rate (10) is used. When in
shallow waters second reflection echoes may
appear between the surface and actual bot-
tom echo. In this case, lower the TX rate level.
The setting [MAX] automatically adjusts the
frequency and pulse length with depth. The
[S] setting, which requires speed data, selects
the TX rate according to your boat’s speed. A
high rate for fast speed; a slow rate for slow
speed.
Note: The TX rate may not change when [Pic.
Sync] in the Tankenmaru menu is set to [Yes].
This is because of the communications speed
limitation between this unit and Shimano’s re-
ceiver.
Display menu
[ Depth Size ]: Select the font size of the depth
indication ([Small], [Medium], [Large] or [Off]).
[ Zoom Marker ]: Turn the zoom marker on or
off (on the single frequency display) when the
bottom lock display, the bottom zoom display
or the marker zoom display is active.
Border (above)
Seabed display
range
Border (below)