Often we get questions from customers who are confused about the difference between GNSS Precisions and GNSS Accuracy. Many of us look at the horizontal and vertical values at the bottom of our data collector screens and survey on. Is this good enough? Is there more to know about what we are seeing? How does Precision-Based GNSS come into play? Hopefully these three questions now have you thinking. Can you answer them? If not, we’ll do our best to explain.