Press the POWER-MENU key until DEPTH RANGE appears. Automatic is the default
setting. When in automatic, the lower range will be adjusted by the unit to follow the
bottom. (Auto, 1 to 180m)
NOTE:
In manual operation, if the depth is greater than the depth range settings, the
bottom will not be visible on the display. Select AUTO to return to automatic operation.
ZOOM
Press the POWER-MENU key until ZOOM appears. Select AUTO to magnify the area
around the bottom in order to reveal fish and structure close to the bottom that may
not be visible during normal operation. When ZOOM is set to AUTO, the upper and
lower Depth Ranges are automatically adjusted to keep the area above and below the
bottom on the display. Select OFF to return to normal operation. (Off,Auto,Depth
Ranges).
There is also a series of manual ranges which can be selected. The manual depth
ranges are determined by the present depth conditions.
Depth Alarm
Press the POWER-MENU key until DEPTH ALARM appears. Select OFF for no Depth
Alarm, or select 1 to 100m to set the depth alarm . An audible alarm sounds when the
depth is equal to or less than the setting.
(Off, 1 to 180 meters)
Fish Alarm
Press the POWER-MENU key until FISH ALARM appears.
Select OFF for no fish alarm, or one of the following symbols to set the alarm. An
alarm will sound when the FF918 detects fish that correspond to the alarm setting.
Fish Alarm will only sound if Fish ID+ is also set to On. (Off, Large, Large/Medium,
All).
ZOOM
OFF
AUTO
180
DEPTH
ALARM
OFF
180
OFF
FI
SH
ALARM
Large fish only
Large/Medium fish only.
All fish.
-4-
Upper Zoom Range
Structure
Lower Zoom Range