Altimeter Saturday night at 2:05

6619804 over 2 years ago

Hi,

Every Sunday at 2:05 I watch that my Instinct changes the altitude down about 50m (while I am sitting behind the table for a few hours). WTF?

I usually do not correct it, and later the altitude corrects itself somehow, but I am not sure when.

I am not sure if this happens only on Sunday, but at night from Saturday to Sunday I am awake.

Top Replies

trux over 2 years ago +1

That's the nightly calibration using the location reported by your phone.

All Replies

0 trux over 2 years ago

That's the nightly calibration using the location reported by your phone.

0 6619804 over 2 years ago in reply to trux

I have no smartphone, and Settings - Phone status is: off . Is there any other settings which could disable this (wrong) calibration?

0 trux over 2 years ago in reply to 6619804

6619804 said:
I have no smartphone, and Settings - Phone status is: off

Hm, strange. Perhaps it is using the last known location/altitude. Try to compare the data from several nights to see whether it calibrates always to the same altitude.

6619804 said:
Is there any other settings which could disable this (wrong) calibration?

AFAIK, it is not possible to disable the nightly calibration. You can try setting the pressure sensor to the mode "barometer only" for the night, to see whether it makes any change.