The “Antonio Marussi” GNSS (Global Navigation Satellite System) Network of the Autonomous Region of Friuli Venezia Giulia (FVG) is an essential geodetic infrastructure for all professional operators who perform professional topographic measurements in the territory of the region.

The network is constituted by ten permanent stations, active 24 hours a day and 7 days a week, and allows the GPS, GLONASS, and GALILEO constellations to be traced. Services are accessible, free of charge, both for differential correction in post-processing, thanks to the availability of the files of single stations in Rinex format, and of real-time positioning. The service distributes corrections in real-time, via the internet using Ntrip, according to the systems of: Single Base (DGPS and RTK), Nearest, VRS, and MAC. Data is transmitted in RTCM 2.3 and 3.1 and CMR formats