Hi @JulianOes, I also have the same question. I am using the Holybro F9P RTK GPS, and I am trying to increase the refresh rate. I tested PX4 will config F9P to 1Hz as default, but F9P can easily go up to 5Hz-8Hz by using u-center to set.
In this case, PX4 doesn’t configure it to the max rate, unfortunately. I tried to configure F9P with 8Hz in u-center, but it seems PX4 rewrite my setting. I also found a place where PX4 is suspect to set its default parameter talking to the UBX receiver here: PX4-GPSDrivers/ubx.cpp at master · PX4/PX4-GPSDrivers · GitHub. I am wondering why 1 means 5Hz in the note? And how can I update it or override it for a 8Hz rate? I am going to set my RTK at 8Hz as default.
My previous question was posted at RKT GPS Sampling Rate Increasing. So, can you please advise for this? Thanks.