Eagle Electronics 480, 480DF Fish Finder User Manual


 
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5. Press
EXIT| to ZONE ALARM ENABLED|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 ALARMS|ENT| to
SONAR ALARMS|ENT| to ZONE ALARM ENABLED|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.
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 MENU|MENU| to ALARMS|ENT| to SONAR ALARMS|ENT.
2. Press to
FISH ALARM|ENT|EXIT|EXIT|EXIT.
3. To turn off the alarm, press
MENU|MENU| to ALARMS|ENT| to
SONAR ALARMS|ENT| to FISH ALARM|ENT|EXIT|EXIT|EXIT.
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.
A good way to gauge your speed sensor's performance is to compare its
reading with the ground speed measured by your unit's GPS functions.