ProjectZmodel

Datum Management in Esri’s Collector app vs. Trimble’s TerraFlex

Due to the recent interest in our Collector vs. TerraFlex Webinar, I think it’s time we address datum management, both horizontal and vertical.  High accuracy in either software is now attainable.  3D accuracy allows for not only excellent XY values, but also, highly accurate Z values. Datum management to avoid datum shifts is not difficult, […]

NetR9-2

Differential Correction Sources: SBAS, RTK Base Stations, and Real-time GNSS Networks

We get a lot of questions about how to improve in-the-field accuracy with GNSS equipment.  Many new or less-experienced users suspect that when a device is marketed to provide 10 cm or 1 cm level accuracy, that it provides that right out of the box.  When you pay a pretty penny for a high-end machine […]