Russian Satellites Identified as Source of GPS Jamming Across Europe, Study Finds
A preprint study by researchers at the University of Texas at Austin and Stanford University has identified Russian satellites as the likely source of brief but widespread GPS interference events detected across Europe. Analysts sifted through public ground-station data spanning January 2019 to April 2026, finding 75 days with at least one interference event affecting the GPS L1 frequency band simultaneously from Norway to Greenland. The findings raise concerns about the potential for space-based GPS disruption on a continental scale, though researchers note uncertainty remains about whether the jamming is intentional.
A peer-reviewed preprint published on June 2 by Todd Humphreys, Zach Clements, and Argyris Krizise details how Russian satellites appear to be generating short but powerful bursts of GPS interference detectable across a vast swath of Europe and beyond. The interference events, each lasting less than 10 seconds, were identified by analyzing publicly available data from ground-based GNSS receiver stations. Over the study period from January 2019 to April 2026, researchers logged 75 days on which at least one such widespread event occurred, with signals reaching as far as Greenland and Canada. The interference targets the GPS L1 frequency band at 1575.42 MHz, which is used not only by the US GPS constellation but also by other global navigation satellite systems. This marks a rare documented case of GPS interference originating from space rather than ground-based sources. Researchers caution that it remains unclear whether the jamming is deliberate and what its full offensive potential could be if more aggressively deployed.
What's missing
The preprint has not yet undergone formal peer review, which limits the certainty of its conclusions. Additionally, no official response from Russian authorities or the US government regarding the findings is included in the available coverage.
How coverage differed
The single available source, Ars Technica, frames the story in measured, technical terms, emphasizing scientific uncertainty about intent while still highlighting the potential security implications. No contrasting framing from other outlets is available to compare.
What different sources said
- Ars TechnicaCenter
Tests suggest Russian satellites can jam GPS on a continental scale
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