Spatial Reference Manual
Page 53 of 158
Version 4.4
04/06/2019
10.5.1.2
Using the Packet Protocol
1. The unit should be powered on while the vehicle is in a level orientation and
kept stationary.
2. After power on wait 5 minutes for the temperature and filter to stabilise.
3. Ensure that the device has a GNSS fix before proceeding
4. Send the Magnetic Calibration Configuration Packet with the action Start 2D
Magnetic Calibration.
5. Whilst keeping as level as possible, rotate the vehicle in either direction through
one and a quarter full rotations. In a car this can be achieved by driving in one
and a quarter circles.
6. Read the Magnetic Calibration Status Packet to ensure that the calibration
completed successfully. If not successful, send the Magnetic Calibration
Configuration Packet with the action Cancel, wait 2 minutes and repeat from
step 4.