UT Researchers Tie 75 GPS, BeiDou Jamming Events Since 2019 to Russian Satellites
Updated
Updated · SpaceNews · Jun 8
UT Researchers Tie 75 GPS, BeiDou Jamming Events Since 2019 to Russian Satellites
3 articles · Updated · SpaceNews · Jun 8
Summary
165 reference stations across Europe, Greenland and Canada let University of Texas researchers verify 75 short interference events from 2019 to 2026 and trace them to a small Russian early-warning satellite constellation in Molniya orbit.
Humphreys’ team said the pattern points to intentional jamming, not malfunction: the events usually hit on weekdays, last under 10 seconds, cut signal strength by 5-10 dB and target GPS’s L1 band at 1577.5 MHz.
The latest finding adds that the same Russian constellation has been disrupting China’s BeiDou in nearly the same way since June 2020, suggesting a built-in capability to deny both navigation systems over continental-scale areas.
Researchers and former U.S. officials say only modest frequency and power changes could make the threat far more disruptive, underscoring warnings that GPS remains a major strategic vulnerability without terrestrial backup systems.
As Russia tests a satellite-based GPS jamming weapon, how can the U.S. protect its power grids and financial systems?
With space now a battlefield for jamming satellites, is a new global arms race in orbit already unavoidable?
Russian Satellite GPS Jamming Uncovered: Cosmos 2546’s Years-Long Disruption of European Critical Systems
Overview
Recent investigations have revealed that Russian satellites, especially Cosmos 2546 from the EKS missile-warning constellation, are responsible for widespread GPS interference across Europe. These disruptions, which caused brief but total signal blackouts from Svalbard to Spain, puzzled researchers for years due to their vast reach. Careful analysis by experts, using precise timing data from ground stations, traced the source to a satellite orbiting at least 1,200 kilometers above Earth. This discovery highlights the vulnerability of critical infrastructure to space-based jamming and underscores the urgent need for resilient backup systems and international cooperation.