7. FISH FINDER (SOUNDER)
7-8
7.5.2 Manual gain adjustment
To enable manual gain adjustment, tap the screen, tap [Adjust], then turn on [Manual].
The gain controls how echoes of different strengths are displayed. Set the gain to
show a slight amount of noise on the screen. Increase the gain for greater depths and
lower the gain for shallow waters. The figures below show examples for gain set too
high, too low and with a proper setting, for reference.
You can adjust the gain two ways.
Method 1: Pop-up menu
1. Tap the fish finder display to show the pop-up
menu, then tap [Adjust].
2. Tap [HF] or [LF ]as appropriate.
3. Using the slider bar at right edge of the screen,
drag the handle or tap the [+] or [-] symbol.
4. Tap [Done] at the top of screen to finish.
Method 2: Fish Finder/or Multi beamSonar box in the data area
Follow the procedure in section 1.9.2, section 1.9.3 to add [Fish Finder Gain Control]
or [Multi-Sounder Gain Control] box in the data area. Then, do as follows:
1. Show the fish finder display, multi-beam sounder display, side scan display, or
cross-section display. Tap [FISH FINDER] or [DFF3D] at the bottom of the data
area.
2. Tap [HF Gain], [LF Gain], then [M](Manual) or [A](Automatic). Tap [M]/[A] to alter-
nately select Manual, Automatic. For manual gain adjustment, go to the next step.
3. Tap the numeric of the gain frequency tapped in step 2.
4. Use the slider bar at the right edge of the screen to adjust the gain - drag the knob
or tap the [+], [-] symbols.
Gain too high
Gain proper
Gain too low
Current
setting
Drag the drag
handle or tap
[+] or [-] symbol.
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