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The Satellites Page
Compass and Altimeter
PN-40 Only
You can calibrate the PN-Series GPS's electronic compass
and barometric altimeter with the Calibrate option on the
Satellite Page menu, the Compass Page menu, and the
Device Setup > Compass & Altimeter menu. The Device
Setup > Compass & Altimeter options allow you
to disable/enable the electronic compass, the barometric
altimeter, and the auto-calibrate altimeter option. For
more information, see Compass and Altimeter starting
on page 67.
Visit the DeLorme Wiki at wiki.delorme.com for more
information. The latest version of the User Manual is
always available for download.