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Tracing a powerful GNSS interference source over Europe

arxiv.org

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Re: Tracing a powerful GNSS interference source over Europe

#111

Post by Slow_Dog »

lenerdenator wrote: post #88
stef25 wrote: post #75

Earlier quoted context omitted.

That covers most of Poland, wtf

Why wouldn't it? The behavior will continue until a consequence is imposed. Not on regular Russians, mind. Their ruling class. They're still free to move about the continent, make investments, do whatever. Currently Europe seems to be more interested in breaking away from the US than dealing with the power that has killed hundreds of thousands on their own continent.

Maybe there are reasons Europe is pulling away from the US?

The current US president has threatened to invade European territory, is attempting to impose Russia's preferred "peace" plan on Ukraine, and has recently relaxed sanctions on Russia. He also consistently denigrates the military support Europe's given to the US in the recent past. The US has basically cut aid to Ukraine to zero, while Europe continues to supply them, which is currently the best way of dealing with Russia, sucking their military power into a war their not going to win.

Re: Tracing a powerful GNSS interference source over Europe

#112

Post by NicuCalcea »

Coala15 wrote: post #86
preisschild wrote: post #73

Earlier quoted context omitted.

Russia attacked Europe, this is just another reminder that they are our enemies and we should be sabotaging their systems in turn.

Relax, Russia didn't attacked Europe yet (if you mean EU).

They said Europe, why would you assume the EU?

Re: Tracing a powerful GNSS interference source over Europe

#113

Post by bananaowl »

throw0101a wrote: post #23
sippeangelo wrote: post #5

Earlier quoted context omitted.

The theory that they broadcast communication on a band near GPS in order to discourage jamming of their early warning system sounds likely. Flexing the ability to jam GPS is pointless, since it's obvious that any state actor who has military satellites in orbit has considered this option or have the capability already. Therefore, the disruptions must either be regular tests of the capability, or just actual communica…

> Flexing the ability to jam GPS is pointless, since it's obvious that any state actor who has military satellites in orbit has considered this option or have the capability already. Forget "state actors", truck drivers have taken out entire airports with GPS jammers: * https://www.cnet.com/culture/truck-driver-has-gps-jammer-acc... People like the Resilient Navigation and Timing Foundation have been trying for years…

Iridium has launched its own alternative positioning and timing system now https://www.iridium.com/iridium-pnt

Re: Tracing a powerful GNSS interference source over Europe

#114

Post by dingaling »

avazhi wrote: post #109

It's been known that Russia does GPS interference near their Western border and the Baltic down to Ukraine for several years now. It's something airline pilots prepare for now, and expect. Not sure why this is being couched as novel or surprising.

The novel aspect is that it is being conducted by a satellite, rather than a ground station. Which is an escalation in sophistication which makes counter-jamming much more difficult and also gives global reach to the jammer.

Re: Tracing a powerful GNSS interference source over Europe

#115

Post by masklinn »

awestroke wrote: post #82
f137 wrote: post #68

I do not see any discussion of the power required for such wide-area jamming. Even as the useful GPS signal is quite weak at the ground level, this satellite would require power in kW range, right?

Satellites have multi kW solar panels

Being on a Molniya orbit probably also helps: the apogee is at nearly 40000km, but the perigee is on the order of 1600 (according to the EKS wiki page), so outside of their primary observation points of their orbit they are quite close to the earth and thus have a ton of blasting ability for satellites with geostationary comms capabilities.

Re: Tracing a powerful GNSS interference source over Europe

#116

Post by forgotTheLast »

stogot wrote: post #102
sorenjan wrote: post #40

Earlier quoted context omitted.

Yes, it's very wide spread and not carefully aimed at all. It's also not done by satellite but a ground based station. https://gpsjam.org/

Why is Ukraine not jammed in this map? Shouldn’t that be Russia’s priority?

GPS interference is estimated from ADS-B data which is broadcast by airplanes so that they can be tracked. The lack of data over Ukraine is because their airspace is closed to civilian flights.

Re: Tracing a powerful GNSS interference source over Europe

#117

Post by varispeed »

lenerdenator wrote: post #88
stef25 wrote: post #75

Earlier quoted context omitted.

That covers most of Poland, wtf

Why wouldn't it? The behavior will continue until a consequence is imposed. Not on regular Russians, mind. Their ruling class. They're still free to move about the continent, make investments, do whatever. Currently Europe seems to be more interested in breaking away from the US than dealing with the power that has killed hundreds of thousands on their own continent.

US has got itself compromised by Russia. US president is a Russian asset. Breaking away from unreliable former ally is the logical thing to do for Europe's security.

Funny how Ukraine situation started improving once they have severly limited sharing information with the US.

Re: Tracing a powerful GNSS interference source over Europe

#118

Post by stefan_ »

lenerdenator wrote: post #88
stef25 wrote: post #75

Earlier quoted context omitted.

That covers most of Poland, wtf

Why wouldn't it? The behavior will continue until a consequence is imposed. Not on regular Russians, mind. Their ruling class. They're still free to move about the continent, make investments, do whatever. Currently Europe seems to be more interested in breaking away from the US than dealing with the power that has killed hundreds of thousands on their own continent.

[dead]

Re: Tracing a powerful GNSS interference source over Europe

#119

Post by lpcvoid »

dingaling wrote: post #114
avazhi wrote: post #109

It's been known that Russia does GPS interference near their Western border and the Baltic down to Ukraine for several years now. It's something airline pilots prepare for now, and expect. Not sure why this is being couched as novel or surprising.

The novel aspect is that it is being conducted by a satellite, rather than a ground station. Which is an escalation in sophistication which makes counter-jamming much more difficult and also gives global reach to the jammer.

[dead]

Re: Tracing a powerful GNSS interference source over Europe

#120

Post by numlock86 »

avazhi wrote: post #109

It's been known that Russia does GPS interference near their Western border and the Baltic down to Ukraine for several years now. It's something airline pilots prepare for now, and expect. Not sure why this is being couched as novel or surprising.

You could actually try reading the paper first before posting comments like this.
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