When setting the calibration, is the change from 0 absolute (based on the clock on the radiuno), or relative (based on the previous saved calibration?
Or, if the calibration is set +1 for three consecutive (independent) adjustments, is the stored adjustment X+1 because X is reset to a baseline at the start of each adjustment, or X+3 because each of the separate +1 adjustments are added to the stored calibration?