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 […]

How to Choose a Single Base or VRS Subnet in Oregon or Washington to Receive Real Time Corrections for High Accuracy Mapping

For those of you using GNSS surveying or mapping systems in Oregon or Washington, you have access to real time correctors via cellular modem or cell phone to a comprehensive network of GNSS base stations, providing there is cellular service somewhere near your project site. VRS Information A VRS, or Virtual Reference Station, is a […]