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RR400/420 User Manual - CRISARTECH
Firmware version 190122 - © CRISARTECH 2019 - Page 15 / 29
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5.4 Simultaneous calibration of the GPS
When one or more speed sensors are used to measure the distance, the GPS can be used as a backup measurement
means in case of failure of the sensor (s). For this purpose, the GPS must be calibrated in the same way as the speed
sensors. On the calibration area, just check the box:
By calculating the calibration coefficient of the speed sensors, the RR400 calculates the calibration coefficient of
the GPS and displays it in an information panel. It must be close to 1.
5.5 Calibration adjustment
If the co-pilot realizes that his calibration is not optimal, he can easily adjust it in percentage (except beginner
mode). In the calibration screen, the button opens a window allowing this adjustment:
For memory, here are the percentages or coefficients to apply according to the desired corrections: