−14 −
−15 −
※
Please refer to "HOW TO OPERATE MENU" (page
5
) for menu operation.
4. TO SET AUTO RANGE MAX. DEPTH
It sets Maximum Depth when Auto Range is operated.
・
Set AUTO RNG MAX DEP. on menu
1
.
(
30
m,
100
m,
200
m,
300
m, Max. Depth)
Auto Range Max. Depth
5. TO SET EXPANSION RATE
[Expansion Rate]
Expansion rate for expanded area is set to
2
times/
4
times/
8
times.
・
Set EXP. RATE on menu
1
(x
2
, x
4
, x
8
).
Expansion Rate
6. TO SET AUTO GAIN
Sensitivity is automatically adjusted so that response from sea bottom is even.
・
Set AUTO GAIN on Menu
1
.
LOW:
Sensitivity decreases. When you judge status of
bottom, it helps you to confirm second or third
reflection.
HIGH:
Sensitivity increases. It helps you to detect weak
object like bait fish, etc.
OFF:
Cancel Auto Gain function..
Auto Gain
