4
Operation
Fixed key functions
POWER
【
POWER
】
button is used to turn on/off the system.
“0” is off and “1” is on.
RANGE
【
RANGE
】
button sets the depth range(how deep from the surface)
showed on the screen: 5 10 20 30 40 50 60 80 100 120 150 180 200 250
300 400 500 600 800 1000 1500 2000m (22 optional values).
SHIFT
You can shift the initial displaying depth downward. For example, when you
shift 5m downward at 0
～
5m depth range, initial display depth becomes
to 5m and display range becomes to 5
～
10m. Shift range: 5
～
500m.
GAIN & GAIN 1 & GAIN 2
This adjusts the sensitivity to distinguish the bottom or fish school easily.
Dual-freq fish finder:
【
GAIN 1
】
: adjust the sensitivity of 50 kHz signal received.
【
GAIN 2
】
: adjust the sensitivity of 200 kHz signal received.
Color (single-freq fish finder)
This facilitates clear observation by eliminate weak echo.
ZOOM
Expanded display is shown on the left half screen.
Zoom mode is set by
【
MODE
】
key,
more details refer to page 5 MODE.
Fixed-Z
You can choose expansion area by
【
ZOOM
】
key as you wish.
Expansion rate is set in MENU 1 Zoom: ×2.5, ×5, ×10.
