Logging Data
Once your phone is in position to begin logging (mounted if necessary), you should zero the data to set the orientation (if you’ve enabled Variable Y/Z Axis in the options).
The display of the logging tab is active even when not recording. The needles should move as the phone is reoriented or tilted. The display for GPS data should show the status of the location manager, and the sample rate should show the sample rate you’ve chosen in the settings.
Begin your recording by tapping the “Rec Start” button.
If you wish to place a bookmark in the data stream, tap the “Mark” button.
Tap “Stop” to end recording.