professional-grade gps receivers

Choosing between Recreational and Professional-Grade GPS Receivers

Why Consider Professional-Grade GPS Receivers? With increasing pressure to accomplish more work for less money, GPS field data collection systems based around inexpensive recreational-grade equipment may initially seem tempting. These products provide features that, at first glance, seem sufficient to do the job with price tags far below professional-grade GPS receivers. Given the large selection … Read More »

Trimble Catalyst

Trimble Catalyst makes High-Precision Mapping Affordable for Everybody

Once upon a time, professional-grade mapping solutions were too expensive for people who weren’t heavily invested in GNSS. Thanks to Trimble Catalyst, infrequent users can now access high-precision mapping solutions at prices that are truly affordable for everybody with on-demand subscription plans.     Trimble Catalyst makes it as easy as 1-2-3 to get centimeter-level … Read More »

From GPS to GNSS: What are the Challenges of Running a GPS Network – now and in the future?

This is part 3 of a 3-part blog. Managing California’s largest commercial GPS network is a huge challenge – now and for the future. In this third and final blog conversation, CSDS President Tom Cardenas and Systems Administrator Ed Morrison talk about the challenges of a network that covers 93,000 square miles in a geography … Read More »

Accuracy vs. Precision

Client: “I’m not getting the accuracy I’m supposed to out of my GPS.” Representative: “What has led you to believe that?” Client: “It is not lining up with my aerial imagery” (insert historical data, monumentation, the onsite surveyor’s readings, Google Earth, etc.) Representative: “Really? I’m sorry to hear that. How far off is it?” Client: … Read More »

The Importance of a GNSS Site Calibration

At CSDS, we strive to ensure that our network is providing the utmost in RTK precision and repeatability. However, real-world accuracy and assurance can only be achieved by checking into control and performing a GNSS site calibration aka “localization.” This transforms our network reference frame and corrections onto your own network of control points.   … Read More »