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Table 2. Example using meters and Celsius
Lower point Higher point
Set reference altitude (real altitude) 1000 m
Displayed altitude 3000 m
Real outside temperature +17.5 ºC +6.5 ºC
Normal (table) temperature +8.5 ºC -4.5 ºC
Temperature offset (= real - normal) +9 ºC +11 ºC
Sum of temperature offsets +9 ºC + +11 ºC = 20 ºC
Table 3 shows an example in which the temperature offsets are negative. This time
imperial units are used. The reference altitude is set at 3280 feet. At 9840 feet the
altitude difference is 6560 feet and the Suunto X6/X6M shows 100 feet too much (-14
ºF * 6560 ft * 0.0011/ºF = -100 ft). Your actual altitude is thus 9740 ft.
Table 3. Example using feet and Fahrenheit.
Lower point Higher point
Set reference altitude (real altitude) 3280 ft
Displayed altitude 9840 ft
Real outside temperature +36.3 ºF +18.9 ºF
Normal (table) temperature +47.3 ºF +23.9 ºF
Temperature difference (= real - normal) -9 ºF -5 ºF
Sum of temperature offsets -9 ºF + -5 ºF = -14 ºF