HGIS (AL)

HGIS is a continuously operating reference station in Huntsville, US, operated by NOAA's National Geodetic Survey as part of the NGS CORS network. It tracks GPS and GLONASS signals to deliver real-time RTK corrections and precise point positioning data. Surveyors can use HGIS for RTK surveying, static post-processing, and network adjustments requiring high-accuracy geodetic control.