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ger the zone alarm.
6. To turn off the alarm, press
ALARM|↓ to ZONE ALARM EN-
ABLED
|ENT|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.
Sonar Alarms menu with Fish Alarm selected. The check box to the left
is blank, indicating the alarm is turned off.
To turn the fish alarm on:
1. Press ALARM.
2. Press ↓ to
FISH ALARM|ENT|EXIT.
3. To turn off the alarm, press
ALARM|↓ to FISH ALARM|ENT|EXIT.
Brightness
See the entry in this section for Screen Contrast and Brightness.
Calibrate Speed
The speed sensor can be calibrated to compensate for inaccuracies. Be-
fore you change the setting, first calculate the percentage that the
speed is off. You will enter this percentage in a moment.
For example, if you figure the sensor is reading 10 percent faster than
actual speed, you will enter – 10 in the calibration window. If the sen-
sor is reading 5 percent slower than true speed, you will enter + 5 in
the window.
Perform your test in relatively calm water free of current, if possible.
(Unless, of course, you are taking the current speed into consideration