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# Polish institute finds GNSS jamming disrupted two in three days along Baltic coast
- URL: https://sovereigntymonitor.eu/news/2026-08-26-poland-gnss-jamming-analysis/
- Published: 2026-08-26T12:00:00.000Z
- Updated: 2026-09-24T08:35:09.000Z
- Description: Poland's National Institute of Telecommunications reported its Gdansk monitoring station recorded GNSS jamming across all bands on 63 percent of August's first nineteen days, calling it deliberate electronic warfare in the Baltic and advising against reliance on satellite navigation.
- Author: Reidar Balstad
- Tags: Compute and infrastructure, Defence and space, #news, #reported, #editor-read

Reported Editor-read [GPS World, 26 August 2026](https://www.gpsworld.com/polish-institute-analysis-finds-drastic-increase-in-gnss-interference-offers-guidelines/?ref=sovereigntymonitor.eu)

**What it does not test.** Does not identify the jamming's source or record any new funding, equipment or policy response.

**How this item counts.** No movement: no answer to who owns, who operates, whose law governs or who made the parts changes. Weight 0\. Monitoring report/warning only; no source, funding or policy response recorded. [European Sovereignty Index](https://sovereigntymonitor.eu/sovereignty-index/)

**How this item was made.** Drafted by an AI system (Claude (Anthropic)) from the source cited above; read and approved by the editor on 2026-09-24\. [How the record is made](https://sovereigntymonitor.eu/method/#how-the-record-is-made)