Tracing Continental-Scale GNSS Jamming Across Europe to a Satellite Source

Researchers investigate synchronized GNSS signal disruptions recorded across Europe since 2019 and trace the source from ground-based jamming and solar interference to a satellite in a Russian early-warning constellation. The presentation explains how satellite navigation works, why its weak signals are vulnerable, and what the findings imply for infrastructure that depends on GPS.

■ Investigation and discovery
- A tip-off points to a public dataset showing 75 days of abrupt, synchronized signal-to-noise drops across European receivers
- Ground-based jamming and solar activity are ruled out due to continental scale, short bursts, and narrow frequency range

■ GNSS mechanics and vulnerability
- How satellite positioning, timing, clock-error correction, and multiple error sources are handled
- How jamming and spoofing overwhelm or replace weak navigation signals

■ Source tracing and implications
- Raw data from two stations narrows candidates to Cosmos 2546 and a Molniya-orbit constellation
- Competing theories of intentional testing or covert messaging, plus proposals for resilient PNT backups

Viewers interested in satellite navigation, electronic warfare, and critical infrastructure can follow the investigation's methods and open questions without prior specialist knowledge. The coverage remains an overview and does not present a peer-reviewed conclusion or detailed technical designs.