ZED-F9R - Application note 
UBX-22035176 - R01  Contents  Page 4 of 30 
C1-Public   
7.2  Preserving calibration ..............................................................................................................................24 
7.3  Performing a basic test drive..................................................................................................................24 
7.4  Scenario testing ........................................................................................................................................24 
A  Appendix ................................................................................................................................................ 25 
A.1 Recording logs ..................................................................................................................................... 25 
A.2 Replaying logs ...................................................................................................................................... 25 
A.3 Interference of GNSS signals ......................................................................................................... 25 
A.4 Communications and protocols ..................................................................................................... 26 
A.5 Basic alignment & position offset checks .................................................................................. 27 
A.6 Odometry data issues ....................................................................................................................... 27 
A.7 RTK never reaching fix ...................................................................................................................... 27 
A.8 Dropping out of dead reckoning periodically ............................................................................. 28 
A.9 Troubleshooting checklist ............................................................................................................... 28 
Related documentation ........................................................................................................................... 30 
Revision history .......................................................................................................................................... 30 
Contact .......................................................................................................................................................... 30