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kentb
08-16-2010, 08:42 AM
Cool. But not documented in the manual. I assume that it is the difference in the current baro alt and the map data alt.
What are the two letter displayed after the alt? Mine was showing 'B1'.

Kent

lcbowen
08-16-2010, 05:59 PM
B1 refers to barometric pressure, G1 refers to GPS.