Koden CVS-126, Operation Manual

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CVS-126 Chapter 1 Basic Operation
0093132702-08 1-11
Basic Operation of Gain
Every time when rotating the [Knob], the [Gain
(H)] [Gain (L)], and [Gain Select] are switched.
By rotating the [Knob], the gain adjustment or
auto gain can be selected.
Caution: When only high frequency is
displayed, no gain adjustment at low
frequency is available. When only low
frequency is displayed, no gain
adjustment at high frequency is
available.
Selecting the auto gain
The gain adjustment can be set to [Auto Adjust].
1 Press repeatedly the [Knob] until the [Gain
Select] menu is displayed.
2 Select the [Cruising] or [Fishing] by rotating
the [Knob].
3
Press the [MENU] key to close the menu.
When the [Cruising] is set, the [L: AC] [H:
AC] is displayed at the upper side of menu.
When the [Fishing] is set, the [L: AF] [H: AF]
is displayed at the upper side of menu.
Adjusting the gain by auto
The auto gain adjustment can be set to [Auto
adjust high] or [Auto adjust low]. (Setting:-30 to
10)
1
Press repeatedly the [Knob] until the [Gain
Select] menu is displayed.
2
Select the [Cruising] or [Fishing] by rotating
the [Knob].
3
Press the [Knob] to display the [Auto adjust
high].
(The high frequency is explained below.)
4
Fine-adjust the gain by rotating the [Knob].
The [Cursor] key menu position can be
moved.
5
Every time when [GAIN (HF) Knob] is
pressed, the [Gain Select] and [Auto adjust
high] or [Auto adjust low] are alternately
displayed.
6
Press the [MENU] key to close the menu.
Selecting the manual gain
Adjustment of gain can be done manually.
1
Press repeatedly the [Knob] until the [Gain
Select] menu is displayed.
2
Select the [Manual] by rotating the [Knob].
3
Press the [MENU] key to close the menu.
Manual adjustment of the gain
When only the image of High frequency is
displayed, the High frequency gain can be
adjusted. (Setting: 0 to 10)
When only the image of Low frequency is
displayed, the Low frequency gain can be
adjusted.
Caution: If you increase the gain too much,
noise will appear on the entire image,
resulting in an unclear image. Adjust
properly the gain so that the optimum
image can be always displayed.
Over-gain Under-gain Optimum
1 Turn [Knob] to display [Gain (H)].
(The high frequency is explained below.)
2 Adjust the gain by rotating the [Knob]. The
[Cursor] key menu position can be moved.
Stop increasing of the gain just before noise
appears on the image.
Auto adjust high
0
Gain select
Manual
Cruising
Fishing
6.0
Gain(H)