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Issues Calibrating the Compass on the Foretrex 601/701
If the compass on the Foretrex® 601 or 701 outdoor navigator is not calibrating try reviewing our video on compass calibration.
Support: Compass Calibration on a Foretrex 601/701
Calibrate the compass outside. Magnetic fields (cars, buildings) and not holding the device parallel to the ground can cause poor compass readings.