movement. Sweep speed is speed that display forwards. Display expands or
reduces horizontally by changing the sweeping speed.
[Relation of sounding rates and sweeping speed]
7 sweeping speed can be selected on the menu. Ratio of sweeping speed vs.
sounding rates at each speed is shown on the below table.
Menu Setting
x3
x2
4
3
2
1
STOP
2. TO SET A-MODE
A-MODE
It is displayed on the right side of screen (between fish finder display and
depth calibration) and it's width changes according to strength of reflected
signal. Strong response is indicated thick and weak signal is indicated thin.
3. TO SET AUTO RANGE/SHIFT
Auto Range/Shift
・ Set AUTO RNG/SFT on Menu 1.
RANGE: Depth range is automatically changed so that sea bottom
SHIFT: Displayed range is automatically changed (shifted) so
OFF:
Sweep speed
/Sounding Rate
3/1
2/1
1/1
1/2
1/4
1/8
STOP
ON:
OFF: A-MODE is canceled
is always shown on the optimum position of
screen (lower half area).
that sea bottom is always shown on the optimum
position of screen (lower half area).
Auto Range and Auto Shift are cancelled.
19
Fast
Slow
A-MODE is shown.
Set sweep speed
on MENU 1.