Backlight - Plastimo ECHOFISH 820 Manual De Instalación Y Funcionamiento

can be helpful to see small details, fish signals and bottom
structure. Your fishfinder is performant to see any depth
segment with any scale.
For example, if the current depth range is 0~40m and
zoom range is set to 20~25m, the sonar image of the
20~25m depth segment is displayed with a 8x scale. B y
setting it to 20~30m, the sonar image of the 20~30m
depth segment is displayed with a 4x scale.
To set the Zoom Range:
1) Press MENU to enter into menu setting
2) Use the Up/Down Arrow to select Display option.
3) Press Right Arrow to enter into Display setting.
4) Use the Up/Down Arrow to select the Zoom Range op-
tion
5) Press Right Arrow to enter into the setting.
6) Press Up / Down Arrow to select the option.
7) Press Right / Left Arrow to change the setting.
8) Press ENT to confirm the setting.
9) Press EXIT to exit the menu setting.
Note: There is "Enable" and "Disable" of the Zoom Range setting.
The Top &Bottom option is adjustable only when the Zoom Range is
set with "Enable".
There is a spacing requirement between the Bottom and Top setting;
otherwise, an "Error setting" will appear :
1) With meter unit: the value of (Bottom - Top) should be ≥ 3m
2) With feet unit: the value of (Bottom - Top) should be ≥ 10feet.

11. Backlight

Backlight menu allows the fishfinder to be used at night.
Backlighting can also be quickly adjusted thanks to the
Backlight key.
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Echofish 820 – Installation & Operation manual