Hello.
I can’t find answer for are speed and course valid when GNSS is 2D_fixed?
I know that altitude is valid for 3D_FIX only.
When Im parsing NMEA RMC-string output from L96 I see some values for speed and course.
Can I use them if GSA string has 2D_FIX flag set(not 3D_FIX)?
Hi Ildar,
The calculation of speed and course is based on positioning. In theory, module can output speed and course when 2D fixed. But module won’t keep outputting 2D fix for long time. Unless it’s working in very weak signal scenario.
L96 getting fixed procedure: non fix → 2D fix → 3D fix. And 2D fix will last for a very short period of time.
Best regards.
OK. Thank you Rapael-Q.
I will change my MCU’s code algorithm to waiting for 3D-FIX only and change L96 configuration to generate TIMEPULSE signal when it will be in 3D-fixed.
As I understand it is a right solution.