Trimble R750 Base Station – Data Stream
We have a Trimble R750 base station at our site depot and are experiencing some issues with predicted vertical precisions blowing out on the rovers.
For example, when using a completely separate base station at another location, our vertical precisions are typically better than 20mm (which is considered acceptable).
However, when we connect to the R750 base station the vertical precisions blow out to around 50 to 70mm.
Baselines in both circumstances are less than 20km in both circumstances.
Oddly, when I changed the data stream format on the R750 from CMRx to CMR+ this seemed to fix the issue, however the problem is this means we can only then use GPS + GLONASS which really defeats the purpose of having a Multi GNSS base station such as the R750!
The rovers in question are older units (SCS900 with SPS 985 antenna), but unfortunately I don’t have access to any newer full Multi GNSS rovers to do some further checks with.
Any advice or things to try would be greatly appreciated! Thanks.
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