Eastern Flank GPS Jamming Hits NATO Border
Yesterday’s jamming map is particularly interesting. Virtually the entire eastern flank of NATO is affected by strong, geographically concentrated jamming along the eastern border,
the Italian tracking project ItaMilRadar wrote on the social media platform X on November 4, 2026.
Widespread satellite navigation interference struck nearly the entire eastern flank of the North Atlantic Treaty Organization on Tuesday, November 3, 2026. The Italian project ItaMilRadar, which monitors military and civil aviation, first flagged the exceptionally broad signal interference using data from the service AirNav Radar. The specialized outlet Defence Blog reported on the findings the following day.
Aircraft record prominent disruptions near Russian Kaliningrad Oblast
Aircraft recorded the most prominent disruptions over the southern Baltic Sea near the Russian Kaliningrad Oblast, over Lithuania, along the Polish borders with Belarus and Ukraine, over Romania and Moldova, and near the Bulgarian Black Sea coast. Lighter interference appeared over Belarus, western Russia, the Crimean Peninsula, and the Caucasus. The affected airspaces suffered degraded signal quality across global navigation satellite systems, including the American GPS, the European Galileo, and the Russian GLONASS networks.
Defence Blog noted that the layout of the affected zones aligns with the war in Ukraine, as the interference corridors largely mirror border areas through which unmanned aerial vehicles frequently fly during Russian strikes. Part of the jamming may stem from electronic warfare equipment operated by NATO member states themselves to defend against drones guided by satellite navigation. While the footprint suggests sources on both sides of the border near Belarus and Kaliningrad, no participating government confirmed the deployment of electronic warfare systems on that scale.
Yesterday’s jamming map is particularly interesting. Virtually the entire eastern flank of NATO is affected by strong, geographically concentrated jamming along the eastern border. pic.twitter.com/eOuqdyiepm
Previous Russian Military Interference Traced
Although the exact origin of the latest disruption remains officially unconfirmed by affected governments, researchers previously tied similar Baltic Sea incidents to specific Russian military installations. As Defense News reported in July, Polish researchers using monitoring stations deployed around the Gulf of Gdansk tracked multiple jamming sources inside the Kaliningrad Oblast. Using triangulation, the researchers determined their locations with an accuracy of approximately one kilometer.
Two identified sources sat near known Russian electronic warfare facilities. Researchers localized April jamming and May navigation data spoofing to the vicinity of the Okunyevo antenna complex on the Kaliningrad coast, close to the headquarters of the Russian 218th Separate Electronic Warfare Regiment. Another incident in March was traced to the port city of Baltiysk, which serves as the base for the Russian Baltic Fleet. Researchers also pointed to the St. Petersburg region as the origin of significant interference affecting northeastern Europe, with flight data indicating that one local jamming source actually shifted position.
Thousands of flights encounter satellite navigation issues
Data referenced by Defence Blog shows that approximately 123,000 flights over Poland, the Baltic states, Finland, and Sweden encountered satellite navigation issues in the first four months of 2025. Sweden and five other European nations formally notified the International Civil Aviation Organization about the situation. Estonia, Lithuania, Latvia, Sweden, and Germany previously categorized Russian navigation jamming in the region as a component of hybrid warfare.
Beyond navigation errors, Russian unmanned aerial vehicles repeatedly breached allied airspace during attacks on Ukraine. No government has yet verified who operated the transmitters responsible for the November 3 incident.
Global satellite navigation systems experience widespread signal degradation
Which navigation systems experienced signal degradation during the incident?
Aircraft reported degraded signal quality across global navigation satellite systems, including the American GPS, the European Galileo, and the Russian GLONASS networks.
How many flights experienced navigation issues in early 2025?
Approximately 123,000 flights over Poland, the Baltic states, Finland, and Sweden encountered navigation problems during the first four months of 2025, according to data referenced by Defence Blog.
Where did researchers locate previous jamming sources in Kaliningrad?
Polish researchers using monitoring stations around the Gulf of Gdansk traced sources to the Okunyevo antenna complex near the 218th Separate Electronic Warfare Regiment and to the port city of Baltiysk.