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TAG: Virtual Reference System

The GNSS control points used for positioning services provided by the South Korea's government. Green dots = installed stations; orange dots = to be installed by the end of this year. (Image: National Geographic Information Institute)

Korea testing gridded VRS for better GNSS accuracy

October 1, 2025

Image: GPS World

Iraq on the Map: Installing Reference Stations for Accurate Engineering

March 1, 2011

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