Precise positioning with GIS&Map accuracy – VRS DGNSS

The VRS DGNSS (Differential GNSS) service, provided by GeoNet, assures positioning accuracy approx. 10-50cm with single or dual frequency (L1/L2) GPS receiver.

For this purpose, the receiver must be able to receive real-time corrections via GSM modem.

  • Description and technical data
  • Application
  • Video

The process of surveying:

  • The reference network stations continuously receive data from satellites and forward them to a central server with data processing software installed (Trimble GPS NET).
  • The software decides the ambiguity in the network, generates corrections and send them to rovers.
  • Rovers connect to the server via radio, GSM or Internet connection to obtain real-time corrections and calculate the position within few centimeters, using the algorithm set out in the software.

Technical data:

Maximum accuracy: 10-50cm

Data Format: RTCM 2.1/RTCM2.3

Access: GPRS / NTRIP Protocol

Navigation system: GPS+GLONASS

Data obtained in VRS DGNSS mode can be used for:

  • A number of GIS&Mapping applications.
  • Precision navigation.
  • Hydrography.
  • Fleet management.
  • Precise positioning of agricultural machines and arable land determination.
  • Ecology, Environmental and Water protection.
  • Various researches and others.


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