Pos accuracy in altitude

Hello, from my own experience, reach is quite powerful in open areas and it’s possible to get a quick fix, which would give us a few cm accuracy thereotically. however I didn’t see much tests regarding the accuracy in Z, which is also very useful for flying (suppose it works better then baro), is anyone who can share some experience on that? thanks,

@MasterYang Accuracy in Z is usually 1.5 times planar accuracy.