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E-63
When you measure altitude using a reference altitude specified by you
After you specify a reference altitude, the watch uses that value to convert the
current measured barometric pressure value to altitude.
• When mountain climbing, you can set the
reference value in accordance with a marker
along the way or altitude information from a
map. After that, the altitude readings
produced by the watch will be more accurate
than they would without a reference altitude.
Displaying Your Current Altitude
You can use the procedure described in this section to display your current
altitude. If you leave the watch in the Altimeter Mode, it will update the
displayed altitude value regularly, and indicate reading-to-reading changes in
the altitude graph at the top of the display (page E-65).
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