Recently, I've added RTK GPS module on my PIXHAWK(firmware 3.3.3).
I checked the Ublox's GPS protocal was NEMA 0183 which inluded GPGGA GPGSA GPGSV GPRMC GPVTG GPGLL.
But my RTK GPS module can give BESTVELA.
So I wonder if PIXHAWK can receive the GPS protocal BESTVELA.
From the flightdata, there is no IVN，IVE，IVD,
It means that pixhawk only use 2D position.
Any ideas? thanks.