Researchers identify powerful GNSS interference source over Europe

Researchers identified a high‑power GNSS interference source affecting Europe, based on a paper posted to arXiv on June 5, 2026 [arXiv]. Using a dense network of GNSS receivers and software‑defined radios, the team triangulated the emitter to a location in central Europe and measured its spectral characteristics.

The authors applied short‑time Fourier transforms and a supervised machine‑learning classifier to isolate anomalous signals from the background. The interference peaks at 1.575 GHz (the L1 band) with a power density of roughly –30 dBm/Hz, enough to degrade carrier‑phase tracking in standard receivers.

Simulations show a 15 % loss of lock probability for commercial aviation GNSS receivers operating within a 200 km radius, and a comparable degradation for maritime navigation systems. The paper evaluates mitigation techniques: adaptive notch filters restore lock in 80 % of cases, while redesigning antenna front‑ends reduces susceptibility by 40 % [arXiv].

For engineers, the findings provide concrete parameters for designing more resilient GNSS hardware. The reported interference signature can be incorporated into receiver firmware to trigger automatic mitigation, and antenna manufacturers can use the frequency‑specific data to shape gain patterns that suppress the offending signal. Regulators can use the location data to enforce spectrum compliance and coordinate with national authorities.