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G-Nut support

Supporting materials (manuals, video tutorials) and individual support for commercial users.


A tool for checking the quality of multi-GNSS observations and content of data files/streams disseminated in standard formats (RINEX 2/3, RTCM 3).


A tool for estimating tropospheric parameters from GNSS data in support of meteorology, climatology, and the troposphere modelling.


A tool for estimating receiver precise coordinates from GNSS data using Precise Point Positioning (PPP).

Individual user support

Commercial support is available on request. Contact us at
Support fee can be combined with a software fee.