Image: GPSThreatmap.com
What’s new: A paper from the Technical University of Denmark about how terrestrial interference with GPS interferes with the operation of other satellites.
Why it’s important: To properly operate, satellites need to know where they (positioning) are and be able to synchronize their transmissions (timing) to get data down to earth. If that location and timing information is denied or corrupted, things don’t work so well.
What else to know: The paper identifies “deaf zones” over which satellites are not able to receive GPS.

Jamming that even satellites can hear
Satellites over Europe are losing GNSS signal to ground-based interference from the war zone, and it has been getting worse since 2024. We explain how and why.






