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1.13 User Menu
The User menu has several functions which
require adjustment according to operating
conditions.
1. Select MENU with the MODE control.
0 -20 +20
1 1 9
OFF NL1 NL2 NL3
NOISE LIMITER
CLUTTER
AUTO 0 16
VRM WHITE MARKER
M ARKER
HUE
GAIN ADJ 200kHz
0 -20 +20
GAIN ADJ 50kHz
▲▼ : To select item
- + : To set condition
1/2
Figure 1-26 User menu
2. Press the [▲] or [▼] key to select menu
item. As you operate the [▲] or [▼] key,
the selected item and its current setting
appear in reverse video.
3. Press the [+] or [–] key to set condition.
4. Set the MODE control in another posi-
tion to close the menu.
1.12 A-scope Display
This display shows echoes at each transmis-
sion with amplitudes and tone proportional to
their intensities, on the right 1/3 of the screen.
It is useful for estimating the kind of fish
school and bottom composition.
32.3
10
20
30
40
A-scope
display
Normal
display
200k
0.0
0
Figure 1-24 A-scope display
1. Press the BRILL and ALARM keys to-
gether. The A-SCOPE selection display
appears.
A-SCOPE
OFF
ON
▲
▼
Figure 1-25 A-scope selection display
2. Press the [▲] or [▼] key to select OFF or
ON.