Module No. 3553
Setting a Reference Altitude and Taking Altitude Differential Readings
You can use the procedure below to display the differential between a reference altitude and another altitude. This makes it easy to display the altitude differential between two points while climbing or trekking.
Select the Altitude Differential Screen.
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Use the contour lines on your map to determine the altitude differential between your current location and your destination.
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Take an altitude reading of your current location.
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Use (E) to set your current location as the reference altitude.
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While comparing the difference between the altitude you found on the map and the altitude differential displayed by the watch, advance towards your destination.
This makes the altitude differential ±0 m (±0 feet).
When the altitude differential you found on the map is the same as that displayed by the watch, it means you are close to your destination.
Note
[- - - -] appears when the altitude differential is outside the measurement range (±3,000 m (±9,840 feet)).