2. HORIZONTAL MODE
2-4
1. Press the MIX key to activate the mix mode. How to display the mix display de-
pends on the display mode in use.
2. Adjust the high-frequency gain while observing targeted fish.
3. While observing the mix display, set the low-frequency gain to 0 and gradually
raise it just until echoes from adult fish disappear from the mix display.
4. While observing the echoes from young fish on the mix display, readjust the low-
frequency gain in order to distinguish young fish. When the echoes from young
fish are weak, lower the low-frequency gain. If adult fish appear, raise the low-fre-
quency gain. (Rule of thumb: For whitebait, low-frequency gain is set 3-4 steps
lower than high-frequency gain.)
Single-frequency display or combination display (other than vertical scan com-
bination): Use the MIX key to switch between the mix display and the single-frequen-
cy display alternately.
Dual-frequency display: Use the MIX key to switch between the mix display and the
dual-frequency display alternately.
How the MIX key works in dual-frequency mode
Combination display (vertical scan combination)
Main window is active: The MIX key changes the frequency of the main window from
low to high alternately.
Sub window is active: The MIX key changes the frequency of the sub window from low
to high alternately.
To switch between main and sub windows use the MAIN/SUB key.
MIX
DISPLAY
MIX key
HIGH-FREQ.
DISPLAY
HIGH-FREQ.
DISPLAY
LOW-FREQ.
DISPLAY
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