Eagle Electronics SeaChamp 2000 - Manual (Page 64)

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Sonar Alarms menu with Fish Alarm selected. The checkbox
is blank, indicating the alarm is turned off.
To turn the fish alarm on:
1. Press MENU | MENU |
↓ to
A LARMS
| ENT |
↓ to
S ONAR A LARMS
| ENT .
2. Press ↓ to F ISH A LARM
| ENT | EXIT | EXIT | EXIT .
Calibrate Speed
The speed sensor can be calibrated to compensate for inaccuracies.
Before you change the setting, calculate the percentage the speed is off.
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
sensor 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. When you
compare your GPS ground speed to speed sensor speed, perform your
test in relatively calm water free of current, if possible. (Unless, of
course, you are taking the current speed into consideration when
making your calculation.) After you have a correct figure, here's how to
enter it:
1. Press MENU | MENU | ↓ to S ONAR S ETUP
| ENT | ↓ to C ALIBRATE W ATER
S
PEED
| ENT .
2. Enter the number you calculated earlier: press ↑ or ↓ to change the
first character (+ or –), then press → to move the cursor to the next
number and repeat until the percentage is correct, then press EXIT .
Chart Speed
The rate echoes scroll across the screen is called chart speed. The
default is maximum. We recommend you leave the setting there for
virtually all fishing conditions.