Furuno GP-7000F - Manual (Page 105)

10. VIDEO SOUNDER OPERATION
10-19
10.10.2 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 also be set.
1. Open the ALARMS menu.
2. Rotate the [ENTER] knob to choose FISH ALARM and then push the
[ENTER] knob twice.
Off
Depth 0000.0 ft
Range 0010.0 ft
Level Medium
Fish alarm window
3. Rotate the [ENTER] knob to select On or Off as appropriate. For On, enter
the depth, range and level (sensitivity).
For Level, choose High (red and stronger echoes trigger the alarm), Med (yellow
and stronger echoes trigger the alarm) or Low (blue and stronger echoes trigger
the alarm.)
4. Push the [ENTER] knob and [MENU] key in order to close the menu.
10.10.3 Fish alarm (B/L)
The bottom-line fish alarm sounds when a fish echo is within a predetermined
distance from the bottom.
1. Open the ALARMS menu.
2. Rotate the [ENTER] knob to choose FISH ALARM (B/L) and then push the
[ENTER] knob twice.
Off
Depth 0000.0 ft
Range 0030.0 ft
Fish alarm (B/L) window
3. Rotate the [ENTER] knob to select On or Off as appropriate. For On, enter
the depth and range.
4. Push the [ENTER] knob and [MENU] key in order to close the menu.