L26-DR GNSS - is the dead reckoning calibration optional?

IoT Modules GNSS Module
1

Hi, what if I don´t calibrate the DR in the module? does the module still generate the positioning and speed data or would be a no valid data?, for example, in the GSV NMEA message, the GPSQual parameter would be 0, 1, or 2?

the L26-DR Application Note page 25 says:
" It is important to note that the hybrid GNSS/DR navigation mode will not be entered until a valid calibration becomes available. Prior to that point, only GNSS-standalone navigation will be provided."

but how to know when the module is in hybrid mode or standalone?

thanks

2

Hi，

  1. Yes, before the calibration is completed, only GNSS independent navigation will be provided, and positioning information will be output normally.
  2. Monitor the calibration status through $PSTMDRCAL. If it has been fully calibrated, it means to enter the GNSS/DR hybrid navigation mode.

Best Regards