Instruction manual

CVS-128 Chapter 2 How to use the menu
0093112802-00 2-3
2.4 Color Rejection of Weak
Echo
Color Rejection
The color of weak echo can be rejected.
Rejecting noise on the entire image and weak
echo around the school of fish makes it easier
to see the school of fish. It is the convenient
function when displaying the echo stronger
than the specific signal. (Setting: 0 ~ 50 %)
1 Press the [MENU] key.
2 Select the [Adjust] → [Color Rejection].
(See [2.1 How to operate the menu])
3 Press the [ ] key.
4 Change the setting of [Color Rejection].
(Press the [ ] key or [ ] key.)
5 Press the [MENU] key to close the menu.
2.5 Rejection of Noise
Noise Rejection
The influence of noise can be reduced.
Due to echo reflected from plankton and trash,
the speck-like noise may appear on the entire
image. Setting the [Noise rejection] reduces the
speck-like noise and makes it easier to see the
image of school of fish. (Setting: 0 ~ 10)
The greater the set value becomes, the
stronger the effect of noise rejection becomes.
1 Press the [MENU] key.
2 Select [Adjust] → [Noise rejection]. (See
[2.1 How to operate the menu])
3 Press the [ ] key.
4 Change the setting of [Noise rejection].
(Press the [ ] key or [ ] key)
Noise Rejection
5
5 Press the [MENU] key to close the menu.
2.6 Setting of Shift
The [Shift] (Manual Shift) and [Auto Shift] are
provided.
Manual Shift (Shift):
The image range is shifted up and down.
(Setting: m, fm, I.fm: 0 ~ 300, ft: 0 ~ 1000)
Auto Shift:
The image is automatically shifted so that the
bottom is always displayed.
Setting of Manual Shift
The scope of range starting with the shift value
is displayed.
1 Press the [MENU] key.
2 Select [D. range] → [Shift]. (See [2.1 How
to operate the menu])
3 Press the [ ] key.
4 Change the set value of [Shift]. (Press the
[
]
key or [ ] key)
Shift
10
0~300 m
5 Press the [MENU] key to close the menu.
Color Rejection
0
%