All posts by Gavin Schrock
Preparing for the Effects of Solar Cycle 25 on GNSS Applications
As we head into the peak period for the current solar cycle, high-precision users can use space weather status and prediction resources to help plan field operations. Plus, receiver manufacturers have developed advanced mitigation solutions. Solar Cycle 25, so named as the 25th of the 11-year (approximate) cycles since 1755, when extensive recording of the...
What’s Inside Your GNSS Rover? Part 3
The third and final installment of a look at the inner workings of high-precision surveying rovers. In parts one and two, which appeared in the two previous issues, we focused on antennas, amplification, housing, channels, boards, and gates. This installment continues with signal matching, positioning engines, and additional components. Matching Signals To distill the observed...
What’s Inside Your GNSS Rover? Part 2
The second installment of a three-part look at the inner workings of high-precision surveying rovers. In Part One of this series (xyHt magazine, September 2023 issue) we focused on the antenna, amplification, and housing elements of rovers. This installment continues with channels, boards, and gates. Channels There is a lot of misunderstanding about what receiver...
What’s Inside Your GNSS Rover? Part 1
The venerable GNSS rover, has evolved into an essential part of a surveyor’s toolkit, although some mystery remains as to what that magic box does and how it does it. To demystify this, we engaged GNSS engineers to help craft this three-part “explainer” series. Part one The work of a surveyor requires a lot of...
HAS Potential
Free and Global: The new high accuracy positioning service (HAS) of the Galileo constellation and its advantages for GIS and asset mapping If you consider field mapping applications, such as for GIS, asset inventory and management, and field operations for utilities, how wonderful would it be to have sub-foot positioning in real time, with no...
Autonomous Drone Mapping
How interior spaces like mines are being scanned and imaged by a drone that works without a pilot or connectivity. There is a scene in the Ridley Scott-directed 2012 sci-fi thriller “Prometheus” where a deep space exploration crew lands on a planet and discovers an underground labyrinth. They lob a levitating orb down a tunnel,...
