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The Electronic Compass must be calibrated when you fi rst use the Geko 301 and after
new batteries have been installed. The accuracy of the Electronic Compass is adversely
affected if the unit is not held level or by nearby items that generate magnetic fi elds, such as
cars or buildings, etc.
To Calibrate the Electronic Compass:
1. Press the PAGE Button until you arrive at the MENU Page.
2. Press the UP or DOWN Button to highlight the 'CALIBRATE' option and press the OK
Button to select it.
3. With the 'COMPASS' option highlighted, press the OK Button to select it.
4. The information screen explains: "TO CALIBRATE: SLOWLY TURN TWO FULL CIRCLES IN
THE SAME DIRECTION WHILE HOLDING GEKO LEVEL". *To keep level while rotat-
ing, it is recommended to place the Geko 301 on a fl at surface , but not
necessary. Press the OK Button to begin calibrating the compass.
The unit displays a "JUST RIGHT", "TOO FAST", or "TOO SLOW" message for you to
adjust your turning speed as needed. The "CALIBRATION COMPLETED SUCCESSFULLY"
message displays when fi nished. If a "CALIBRATION FAIL" message appears, repeat the
process.
A 'HOLD LEVEL' reminder displays if you are not holding the Geko 301 level, or if the
compass is not properly calibrated. When the compass is turned Off, the status at the top
of the page displays your GPS heading, and it will stay off until you manually turn it On.
When the compass in On, the status displays your compass heading. Sometimes when the
compass is On, the Geko 301 bypasses the Compass and uses the GPS receiver to track your
heading. The criteria for switching between the Compass and the GPS receiver is custom-
ized on the 'HEADING' Setup Page. (See page 40)
Navigation Page
Options
Calibration Menu
Start Compass
Calibration
During Compass
Finish Compass
Calibration
Calibration
13
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