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7. FISH FINDER
7-7
7.3.2 How to select an automatic fish finder mode
There are two types of automatic fish finder modes: [Auto Fishing] and [Auto Cruising].
[Auto Fishing] searches for schools of fish, and [Auto Cruising] tracks the bottom.
[Auto Cruising] uses a higher clutter removal setting than [Auto Fishing]. Do not use
[Auto Cruising] when your purpose is to find fish, because the clutter removal circuit
can erase weak echoes.
To select an automatic fish finder mode:
1. Select [Adjust] from the RotoKey menu.
2. Select [Auto Fishing] or [Auto Cruising].
7.4 Manual Fish Finder Operation
Use the manual operation to see schools of fish and the bottom echo with a fixed gain
setting. The gain, range and range shift functions let you select the depth you can see
on the screen.
7.4.1 How to select the manual mode
1. Select [Adjust] from the RotoKey menu.
2. Select [Manual].
7.4.2 How to select the display range
Manual range setting
TZT9/TZT14: Rotate the RotoKey
TM
to select the range. The range can not be
changed in the auto mode or the bottom discrimination display.
TZTBB: Pinch the fish finder screen. Or tap the sounder scale box at the bottom left-
hand corner of the screen to display the slider bar. Drag the circle icon to set the range
scale.
How to turn on or off the auto range
The range can be selected automatically or manually. Select [Auto Range] from the
RotoKey menu for auto range. To turn off the auto range, deselect [Auto Range].
Tap the area circled above to display the
slider bar.
Note: You can switch between low and high
frequencies by tapping the right side of the
sounder scale box (see paragraph 7.2.1).
Drag the circle
icon to set the
range scale.
Slider bar
Increase
the range
300ft
Current
range
156 ft
300 ft
Decrease
the range
150


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