Russische Satelliten stören GPS-Signale, heißt es in einer Studie | Der Eingriff ereignete sich überwiegend während der Geschäftszeiten, was auf einen planmäßigen Betrieb schließen lässt.

>While sifting through data collected by GPS monitoring stations, a team of researchers noticed a mysterious pattern. Over the past seven years, the team documented 75 days on which there was a sudden drop in signal strength that occurred simultaneously across Europe. A thorough investigation traced the disruptions to a small constellation of Russian satellites, which may be jamming GPS signals on purpose.

>A recent [investigation](https://arxiv.org/abs/2606.03673) led by Todd Humphreys from the University of Texas, Austin, found that the Russian satellite Kosmos 2546 may have been used to jam GPS signals on a continental scale as part of scheduled operations. While the purpose of the signal interference is not yet clear, the findings could have bigger implications for electronic warfare in global conflicts. The findings have not yet undergone peer review, but the researchers have submitted the paper for review to NAVIGATION, the journal of the Institute of Navigation.

I’m sure that’s fine. Just a glitch.

I think it’s most likely that they are intentionally using GPS bands for communication with the satellites. It makes a lot of sense. You can’t jam these bands, you will only hurt yourself.

I was listening to a discussion on it recently and there are some oddities to it. They’re using frequencies close to some of those those used by American GPS and European Galileo, which inhabit a similar set of bands, but the weird one was it also seemed to be deliberately close to Chinese BeiDou’s bands which were a little out of that area, which would tend to indicate it might be very deliberate.

The other theory on it is that they have placed a control signal for their missile tracking satellites deliberately in that range to prevent jamming i.e. you’re not going to jam GPS / Galileo and BeiDou as you’d take out your own positioning systems.

It’s also not quite on the frequencies i.e. it’s just very close to them, which is more bleeding over than outright jamming them, which could mean it’s a periodic test that’s deigned not to be so disruptive that it causes a backlash, or it could be as theorised that it’s a way of inserting a downlink signal into a space that can’t be blocked easily.

It’s all a bit weird and without any explanation, but it would definitely seem to be deliberate rather than just some glitching transponder, which I think had been the assumption by some commentators in the past.

The business hours thing could equally be systems checking in with a satellite during office hours as part of a routine maintenance schedule, if the deliberately placing a short burst of signal in amongst the GNSS services is the explanation.