corresponds to the standard barometric pressure (1013hPa/29.90inHg) at sea level. If you do not know your current altitude or the correct sea level pressure, you can have an estimate of your altitude by setting the sea level pressure to 1013 hPa/29.90 inHg.
In the Weather mode, Altitude is replaced with Sealevel, this functions and is set in the same way as Altitude.
To set the reference altitude:
1.In the Function menu, scroll to Altitude with the arrow buttons and press Suunto.
2.With the arrow buttons, set the reference altitude in the field to match the altitude of you current location and press Suunto. You return to the Function menu.
If you do not know your altitude, you can use the air pressure to help determine the altitude. To do this, select the Weather mode and set the current sea level air pressure. You can find out the sea level air pressure, for example, from the airport, weather station or Internet weather pages.
3.3.4. Compass
The compass menu includes functions for either calibrating the compass or setting its declination.
Calibrating the compass
You should calibrate the compass if it does not seem to work well, for example, when it displays the wrong compass heading or the heading changes too slowly. You should also calibrate the compass after replacing the battery.
Strong electromagnetic fields, such as electric lines, loudspeakers and magnets, can affect the compass calibration. Therefore calibrate the compass if your Suunto X6/X6M has been exposed to these fields.
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