Jammertest: strengthening satellite navigation

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Satellite navigation is essential to everyday life, from tracking your morning jog to landing air ambulances. But as reliance on satellite navigation grows, so do the risks associated with its interruption, natural or intentional. To strengthen European resilience in navigation, the European Space Agency (ESA) takes part annually in Jammertest.

Organised on the remote island of Andøya, Norway, Jammertest is the world’s largest open air testing campaign for jamming and spoofing resilience. In September 2025, ESA engineers attended Jammertest with ESA’s mobile navigation lab to test how different systems respond to interference. After this, the data are analysed to check which technologies perform the best against jamming and spoofing.

By bringing together academia, industry and governmental organisations, Jammertest helps make satellite navigation better for everyone and protects European assets.

More on Jammertest: ESA - Navigating through interference at Jammertest

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