Furuno NAVNET 1752C - Manual (Page 166)

4. VIDEO SOUNDER OPERATION
4-20
4.12.2 Bottom alarm
The bottom alarm sounds when the bottom echo is within the alarm range set.
To activate the bottom alarm the depth must be displayed. Note that the bottom
alarm is turned on or off reciprocally with the bottom alarm on the plotter alarm
menu.
1. Press the [ALARM] key to show the ALARM menu.
2. Use the cursor pad
to select BOTTOM ALARM.
3. Press the EDIT soft key to show the bottom alarm window.
BOTTOM ALARM
▲
¡ ON
0000.0-0000.0 ft
¤ OFF
▼
Bottom alarm window
4. Use the cursor pad to select ON or OFF as appropriate. For ON, enter alarm
range with the cursor pad and [ENTER] knob: Use ◄ or ► to select digit;
rotate the [ENTER] knob to set value.
5. Press the ENTER soft key or push the [ENTER] knob to register setting.
6. Press the [ALARM] key to finish.
4.12.3 Fish alarm
The fish alarm sounds when a fish echo is within the preset alarm range. Note
that the sensitivity of the fish alarm can be set on the SOUNDER SYSTEM
SETUP menu.
1. Press the [ALARM] key to show the ALARM menu.
2. Use the cursor pad
to select FISH ALARM.
3. Press the EDIT soft key to show the fish alarm window.
FISH ALARM
▲
¡ ON
0000.0-0000.0 ft
¤ OFF
▼
Fish alarm window
4. Use the cursor pad to select ON or OFF as appropriate. For ON, use the
cursor pad and [ENTER] knob to enter alarm range: Use ◄ or ► to select
digit; rotate the [ENTER] knob to set value.
5. Press the ENTER soft key or push the [ENTER] knob to register setting.
6. Press the [ALARM] key to finish.