Yachting Electronic Co. NAKI8850B, Руководство пользователя

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To achieve better images, try adjusting the Chart Speed
level to match the actual condition: stationary, drifting
slowly or running you boat at different speed.
To set the Chart Speed:
1) Press MENU to enter into menu setting,
2) Use the Up / Down Arrow to select Chart Speed option.
3) Press ENT to confirm selecting
4) Use the Up / Down Arrow to
5) Press ENT to confirm the setting.
6) Press EXIT to exit.
Shallo Shallow
The Fishfinder sound an alarm tone
when the bottom goes shallower or
equal than the alarm’s setting.
You also could exit alarm mode by
enter into Shallow menu and
artificially increase the current
depth alarm value to a safe grade.