alt Hacker NewsThe GNSS jamming in Ukraine is mostly from Ukraine themselves, to defend against Russian drones and guided bombs.
Just as Iran jams GNSS, and Venezuela jammed GNSS ahead of the attack. Didn't really help though.
https://arstechnica.com/gadgets/2026/05/nasa-satellites-can-...
Probably because Wester jammers are used from ground and drones have antennas on the top side. For comparison, Russian satellite can jam the signal from above and on a large area. Russian technology is superior.