I am setting up a Sirius F9P base, with multiple F9P rovers. Rover are connected with a PX4 autopilot system, and the base are connect to a PC with ground control software. The RTCM is broadcast to each rovers through wireless network.
I notice that different PX4 system report different GPS height values (for example, one reads 200.0m, others could be 202.0m) while they are all physically on the ground. Also, each PX4’s height reading are jumping/floating a lot. (For the same drone, sometimes 200.0m, a few seconds later, it jumps to 201.5m). Can someone help me understanding the cause of this:
- Within a single rover, what is the typical the GPS height values (altitude) accuracy? Is 1 meter floating around normal?
- With multiple rovers, are the different reading across them a normal practice or this is a bug?