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Satellite navigation not working properly? Check GNSS interference at RTGMS.pl!

27.11.2025

GNSS signal interference is a real issue increasingly affecting users in Poland and across much of Europe - from geodesy to transportation and energy. Until now, there have been no comprehensive solutions for detecting and monitoring such disruptions. That is about to change!

Laptop screen displaying the RTGMS.pl portal with a real-time GNSS monitoring map of Poland, showing multiple station locations. The page header reads “Real-time GNSS Monitoring System for Poland.” Logos of RTGMS, ESA, the National Institute of Telecommunications, and GUGiK are visible at the bottom.

On November 25, 2025, the National Institute of Telecommunications (NIT-PIB) and the Head Office of Geodesy and Cartography (GUGiK) launched the portal www.rtgms.pl. This is the first Polish service presenting real-time monitoring results of satellite navigation signal disruptions (GPS, Galileo, GLONASS, BeiDou). The portal is publicly accessible and represents a key element in building national infrastructure resilient to satellite navigation interference. 

Portal Features

  • Real-time monitoring – analysis of GNSS data from the ASG-EUPOS reference station network. 
  • Data visualization – maps and charts showing detected disruptions. 
  • Alert system (coming soon) – email notifications for registered users when interference occurs. 
  • Transparent access to data – analysis results available to all interested users. 

Why is RTGMS Unique?

Existing tools, such as simple disruption maps, do not offer comprehensive analysis or alert mechanisms. RTGMS.pl goes further: 

  • Multi-level signal analysis – from NMEA data to frequency spectrum. 
  • Proprietary detection algorithms developed by experts at the National Institute of Telecommunications. 
  • Integration of analysis, alerting, and public access in one system. 

This makes RTGMS a strategic security tool for transportation, logistics, finance, and defense, strengthening Poland’s resilience against GNSS-related threats. 

Where Does the Data Come From?

The system uses the ASG-EUPOS infrastructure – a network of GNSS reference stations across Poland. GNSS observational data and spectral data from geodetic receivers are analyzed in real time, enabling rapid detection of disruptions and their impact on positioning accuracy. 

About the RTGMS Project

The portal launch marks the next stage of the RTGMS project, implemented by the National Institute of Telecommunications in cooperation with GUGiK under the ESA NAVISP program. 
Funding: European Space Agency (ESA). 

Project objectives: 

  • Detect GNSS signal disruptions and outages across Poland. 
  • Generate alerts when satellite navigation systems may malfunction. 
  • Provide real-time analysis results through a publicly accessible web portal. 

Future stages will include expanding the monitoring station network, deploying a mobile GNSS measurement platform, and launching the notification module. 

Check monitoring results and learn more: www.rtgms.pl.

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