NTRIP - PPK Survey

Hey there,

I’d like to clarify some points regarding conversion ETRS89 data to WGS84.

Both RTKLib and ReachView calculate a rover’s position relying on a base’s coordinates. Basically, the rover knows the centimeter-accurate distance to the base while it’s maintaining the fixed solution.

If the base position is shifted on some offset from the real point on Earth, all rover’s coordinates will be shifted on the same offset too. That means that if the base’s position is specified in WGS84, all the rover’s measurements will be in WGS84 too. If the base coordinates are specified in ETRS89, all the rover’s measurements will be in that coordinate system too, even if ReachView and RTKLib will consider it as WGS84.

Sorry for misleading you earlier! I hope this explanation will clarify things a bit.