I have had several training sessions with errors in the slope and total ascent, I have calibrated the device and it does not solve the problem, even showing slopes of 1% when the path has at least a 12% slope.
I have had several training sessions with errors in the slope and total ascent, I have calibrated the device and it does not solve the problem, even showing slopes of 1% when the path has at least a 12% slope.
There are several threats on grade inaccuracy in this and the 1040 forum. A known issue, which GArmin hasn't soled. Try the IQ-app Sensible Grade