Operation Manual

9.1.1 Getting correct readings
If you are engaged in an outdoor activity that requires accurate sea level air
pressure or altitude, you will first need to calibrate your Suunto Ambit2 by
entering either your current altitude or the current sea level air pressure.
The altitude of your location can be found from most topographic maps or
Google Earth. A sea level air pressure reference for your location can be found
using the websites of national weather services.
If FusedAlti
TM
is activated, the altitude reading will be corrected automatically
using FusedAlti together with altitude and sea level pressure calibration. For
more information, see Section 9.6 FusedAlti
TM
on page 60.
Absolute air pressure is measured constantly
Absolute air pressure and known altitude reference = Sea level air pressure
Absolute air pressure and known sea level air pressure = Altitude
Changes in local weather conditions will affect altitude readings. If local weather
changes often, it is advisable to reset the current altitude reference value
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