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Tip Use the SD card reader to quickly transfer large maps.
Send maps you use frequently to the device’s internal memory.
Compass and Altimeter
The PN-60 comes equipped with two sensors; an
electronic compass and a barometric altimeter.
The electronic compass works when the PN-60 is
moving at less than 1.5 miles per hour. The compass
readings calculated from GPS information are accurate
only when the device is moving.
The barometric altimeter uses the elevation adjusted
to mean sea level and barometric pressure to provide
more accurate elevation readings than the calculated
GPS elevation provides.
Changes in weather patterns and geographic locations
can cause errors in sensor readings. Calibrating the
sensors ensures that they record and display accurate data
on the device and record accurate data in the track le.
The Calibrate option is available from the Satellite Page
and the Compass Page, and is under the Compass
& Altimeter option on the Settings Page.
In addition, from the Settings > Compass & Altimeter
menu, you can enable or disable the electronic compass,
barometric altimeter, and the auto-calibrate barometer
options, or restore the default settings.
Compass Calibration
Calibrate the electronic compass the rst time
you use the PN-60.
Make sure you are outside and away from magnetic
elds, such as those caused by vehicles and power
lines, when you calibrate the compass.
Calibrate when you change the batteries—batteries,
even of the same type, have unique magnetic elds
that affect the accuracy of the electronic compass.
The device periodically checks the compass
accuracy; if it is poor, “Poor Accuracy” appears
in the bottom right corner of the Compass Page and
a red exclamation point displays in the Heading info
eld. If the warning does not go away, try calibrating
the compass.
Additional Information