Furuno MFD12 - White Marker; Fish Finder Alarms; How to Set an Alarm

7. Fish Finder
7-15
7.10 White Marker
The white marker displays the selected echo color in white. Use this feature to help
you separate fish near the bottom from the bottom echo.
1. Press the MENU key to open the menu.
2. Open the [Fish Finder-DFF/FCV] (or [ETR]) menu.
3. Use the RotoKey to select [White Marker].
4. Use the RotoKey to select the echo color to display in white. Color 8 is the stron-
gest color.
5. Press the MENU key to close the menu.
7.11 Fish Finder Alarms
Two types of fish alarms release audio and visual alarms to tell you to that echoes from
fish are in the area you selected. These alarms are the fish alarm and bottom lock fish
alarm.
The fish alarm tells you when an echo above some strength (selectable) is within the
alarm range on the screen.
The bottom lock fish alarm tells you when fish are within some distance from the bot-
tom. The bottom-lock display must be active to use this alarm.
7.11.1 How to Set an Alarm
1. Press the MENU key to open the menu.
2. Select the [Alarms-Fish Finder] menu.
3. Select [Fish Alarm Range] for the fish alarm, or turn on [Fish Alarm for Bottom] to
enter the bottom lock alarm range at [Bottom Lock Fish Alarm Range].
4. Push the RotoKey to enter the alarm value.
Fish Alarm Range
Bottom Lock Fish Alarm Range
Start End
depth depth
0000 ft; 0010 ft
0000 ft; 0010 ft
Start End
depth depth