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10 Oregon Series Owner’s Manual
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Calibrating the Compass
Calibrate the electronic compass
(Oregon 300, 400t, 400c, 400i, 550,
and 550t) outdoors. For all Oregons
except the 550 or 550t, hold the
device level while calibrating. Do
not stand near objects that inuence
magnetic elds, such as cars,
buildings, or overhead power lines.
Calibrate the compass after moving
long distances, experiencing
temperature changes greater than
20°F (11°C), or changing the
batteries.
To calibrate the electronic
compass:
1. Touch Setup > Heading > Press
To Begin Compass Calibration.
OR
From the Compass page, touch
and hold the middle of the
compass.
2. Touch Start and follow the on-
screen directions.
“Too Fast,” or “Too Slow” may
appear, notifying you to adjust your
turning speed. If “Calibration Failed”
appears, touch ,and repeat the
process.