According to my own tests (raw NMEA Reader Program in C) the GPS Value Quality of the Quectel L76k differs largely when compared to moduls like the L80, which makes it not usable for real-time movement tracking , especially next to forests. Has anybody else experienced weird location shifts when moving or standing still, even on open fields?
Here the test on the open field: movement, but always on the same line
Test next to forst and inside forest
Left L76k, right L80;
Especially the shift when standing still next to the forest makes it unusable for my case
Left L76k, right L80;
On the left graph the green line has in reality the same position as the pink one and is actually no movement.
Besides that, no quality value of the GGA Message gives any indication on how good the value really is.
According to my own tests (raw NMEA Reader Program in C) the GPS Value Quality of the Quectel L76k differs largely when compared to moduls like the L80, which makes it not usable for real-time movement tracking , especially next to forests. Has anybody else experienced weird location shifts when moving or standing still, even on open fields?
Here the test on the open field: movement, but always on the same line
Test next to forst and inside forest
Left L76k, right L80;
Especially the shift when standing still next to the forest makes it unusable for my case
Left L76k, right L80;
On the left graph the green line has in reality the same position as the pink one and is actually no movement.
Besides that, no quality value of the GGA Message gives any indication on how good the value really is.