1. OPERATION
6
[Cruising]: This mode clearly displays
stronger echoes (for example, bottom)
and suppresses weak echoes. Use this
mode for general cruising. "G:AC" is
shown at the top left corner on the screen.
[Off]: For manual gain adjustment. The
display shows, "G:X.X" (X.X=gain setting)
when manual gain is active.
If you selected [Fishing] or [Cruising], you
can apply an offset to the gain, at step 3.
To apply no offset, go to step 4. For [Off],
do steps 4 and 5.
3. Press
W
or
X
(setting range: -5 to +5) to
apply an offset. Press
W
to decrease the
offset;
X
to raise the offset.
4. Press the
ENTER
key. The new gain set-
ting is also applied to past echoes.
5. For manual adjustment, rotate the GAIN
control to set the gain (0.0 to 10).
Individual Gain Setting
The gain of the low and high frequencies can
be set individually on the dual frequency dis-
play (paragraph 1.4.2). Turn off [Auto Gain]
(section 1.6) to enable this function. Press
W
to select the LF or
X
to select HF, then adjust
the Gain control. The setting range for either
frequency is 0.0 to 10.
1.7
How to Measure
Depth
The VRM (Variable Range Marker) functions
to measure the depth to schools of fish, etc.
This function is inoperative when a NAV data
display is active.
1. Use
S
or
T
to place the VRM on the ob-
ject to measure depth.
2. Read the VRM depth just above the VRM.
1.8
Menu Operating
Procedure
Your fish finder has five main menus: Sound-
er, Display, Alarm, Data, and System. Below
is the basic menu operating procedure.
1. Press the
MENU ESC
key to open the
menu.
VRM
32.5
VRM Depth
x1
38.7
ft
20
40
60
0
AUTO_R LF L:AF
Cursor
(yellow)
Currently selected menu
Sub menu
Operating
guidance
Main menu
Names of sub
menus appear
when selected.
See Chapter 2.
Summary of Contents for FCV-288
Page 1: ......
Page 54: ...D 1 27 Apr 2012 Y NISHIYAMA...
