I have done a ppk survey with inconsistent Y,Z results. Procedure: Initial: Setout and survey GCPs Check: Check GCPs.
The initial and check survey was done during the same base setup. Base: IT 175.021822 -40.89502974 13.948 (NZGD2000)
Attached are: (Link below)
Both Base and Rover Observation files
Survey observation file
Corrected file (CSV)
Corrected file (excel)
For some reason the X-coordinates compares well (Setout/check) BUT
Y and Z has some real big discrepancies. (Spread).
When does the lines turn orange (processing)?
Is the data still usable when I fix a point?
How do I make sure that when I fix a point, that the data is sufficient?
Is it possible to have a warning on the screen if the Rover has not sufficient data to position accurately?
I have checked the satellites and pdop continuously but it means I have to go to receivers. It is a roundabout way and then I still missed a point although I surveyed it.
I think I finally found the reason for this. Initially, I received the same results, but then noticed that QZSS signals are weirdly affected by something in your area. Also, Beidou satellites are noisier than others. Here’s the screenshot of the rover raw data:
QZSS looks the same on the base. Since you’re working with single-band devices, it’s better to exclude all such factors. So, I’ve calculated the solution based on GPS, GLONASS, and Galileo satellites only. And obtained averaged spreads for all coordinates between 5 and 8 mm.
Also, I changed the Filter type to Combined. Otherwise, the z107x2 point was in Float.
Can you check if it works the same way for you, please? I’m very curious to sort it out.
Nope, the RX expects a multi-frequency correction-signal.
And as the RX is a dedicated network-rover, it cannot function as a correction source for the RS+ (the RS2-series can though).
Have you tried Combined Filter type? Maybe it will help obtain a Fix for z105?
Actually, Beidou can be better on another site. So, I’d not give up on it forever. If you need some help with raw data quality analysis, feel free to ask me!
Christian speaks the truth. Reach RS2+ can be a base for Reach RX, Reach RS+ can’t. But if you don’t have one, you can research NTRIP services in your area. They all usually provide multi-band corrections.
