Lowrance electronic LMS-337C DF - Manual (Page 72)

64
Left, Sonar Alarms menu, with Adjust Zone command selected.
Right, Adjust Zone Alarm selection box, with Upper selected.
3. To set the upper boundary for the Zone Alarm, use
← or→ to select
U
PPER
, then press
↑ or ↓ to move the top of the bar to the desired depth.
4. To set the lower boundary for the Zone Alarm, use
← or→ to select
L OWER
, then press
↑ or ↓ to move the bottom of the bar to the desired depth.
5. Press EXIT |
← to
Z ONE A LARM E NABLED
| ENT | EXIT | EXIT | EXIT . Now, any
echo — fish, bottom, structure — within the zone alarm's depth range
will trigger the zone alarm.
6. To turn off the alarm, press MENU | MENU |
↓ to
A
LARMS
| ENT |
↓ to
S ONAR A LARMS
| ENT |
↓ to
Z ONE A LARM E NABLED
| ENT | EXIT | EXIT | EXIT .
To switch to a different depth setting, open the Sonar Alarms menu and
repeat the instructions in steps 3 and 4 above.
Fish Alarm
Use the fish alarm for a distinctive audible alarm when fish or other
suspended objects are detected by the Fish I.D.
 feature (Fish I.D.
must be turned on for the Fish Alarm to work). A different tone sounds
for each fish symbol size shown on the display.