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5
1.5 Menu Operating
Procedure
The LS-4100 has three menus: Main,
System and Installation. Below is the
basic menu operating procedure.
1. Press the [MENU/ESC] key to open
the main menu. Page 1 or Page 2 of
the main menu appears depending
on the page last used.
[MENU]: Exit
(1/2)
Note: SHIFT and CLUTTER are
not available in the auto mode.
AUTO MODE Off
SHIFT : 0ft
PIC. ADVANCE : 1/1
NOISE LIMIT : Off
CLUTTER : Off
SIGNAL LEVEL : Off
A-SCOPE : Off
HUE : Day
WHITE LINE : Off
DEEP GAIN : Low
Page
no.
Main menu, page 1
2. Use ▲ or ▼ to select an item. To
view page 2 of the main menu, press
▼ until showing the display below.
[MENU]: Exit
(2/2)
GOTO WPT Off
WAYPOINT LIST...
TRIP RESET?
GAIN ADJ 200 : +0
GAIN ADJ 50 : +0
DRAFT : 0.0ft
ALARM MENU...
SYSTEM MENU...
Main menu, page 2
3. Press ► to show selected item’s
options window. The example shown
at the top of the right column is the
options window for AUTO MODE.
Off
Cruising
Fishing
Auto mode options window
4. Use ▲ or ▼ to choose option or set
numeric value.
5. Press the [MENU/ESC] key to close
the menu, or press ◄ to continue
menu operation.
1.6 Automatic Operation
How automatic operation works
The automatic function automatically
chooses the proper gain, range scale
and clutter. It works as follows:
• The range changes automatically to
display the bottom echo on the
screen.
• The gain is automatically adjusted to
display the bottom echo in the darkest
tone.
• Clutter (on the menu), which
suppresses low-level noise, is
automatically adjusted.
Choosing automatic operation
The automatic mode provides two
choices of modes: cruising and fishing.
1. Press the [MENU/ESC] key to open
the main menu.
2. Press ▲ to choose AUTO MODE
from page 1 of the menu.
3. Press ► to open the mode options
window.
4. Choose Cruising or Fishing as
appropriate.
“Cruising” is for tracking the bottom;
“Fishing” is for searching fish schools.
Since “Cruising” uses a higher clutter
rejection setting than fishing, it is not
recommended for fish detection -
weak fish echoes may not be
displayed. “Fishing” clearly displays
weaker echoes.