No. vGIS has two calibration methods:
- vGIS Calibration: Achieves 5cm/2in accuracy when configured correctly.
- External GNSS/RTK-supported calibration: Up to 1cm horizontal accuracy. Both have their own advantages and use cases. Most of our clients—over 95% of users—use vGIS as is without additional GNSS hardware, which helps them minimize or completely eliminate hardware costs.
To read more about both calibration methods, click here.