7. FISH FINDER (SOUNDER)
7-5
7.3.4 A-scope display (display only)
The A-scope display appears at the right of the screen and is available in any display
mode. This display shows the echoes at each transmission with the amplitudes and
tone in balance with their intensities. This display helps you identify possible fish spe-
cies and bottom structure.
How to show or hide the A-scope display
Tap the screen to show the pop-up menu, then turn [A-Scope] on or off.
A-scope peak hold
You can show the peak-hold amplitude image on the A-scope display. With [A-Scope
Peak Hold] turned on, the image is slowly erased to help discern amplitude condition
more easily.
1. Open the Home screen, then tap [Settings]→[Fish Finder].
2. Turn on [A-Scope Peak Hold].
3. Tap the close button on the title bar to finish.
A-scope
display
Single frequency display
Strong
reflection
(bottom)
Fish
echo
Fish
echo
m
HF
20.5
200 kHz
Weak reflection
(small fish or noise)
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