Live data from Hacker News

Tracing a powerful GNSS interference source over Europe

arxiv.org

171–180 of 256 posts

Re: Tracing a powerful GNSS interference source over Europe

#171

[flagged]

One can tell that this is 'from far away'. Europe was hoping that Russia, in their own interest would pursue peaceful cooperation, even when Putin was already talking about 'spheres of influence'. When Russia invaded Georgia, Europe turned the blind eye and was still hoping for peaceful relations with Russia. When Russia annexed Crimea, same thing. Even when Russia was pulling together forces along Ukraines border and the US pulled out their personnel from Ukraine, there were still many voices in Europe that Russia would never invade Ukraine. We can all be lucky that Ukraine wasn't as naive and prepared for this moment, otherwise Russia would probably have invaded a couple more countries by now.

Re: Tracing a powerful GNSS interference source over Europe

#172

Earlier quoted context omitted.

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 sup…

And? When the Russians invaded Georgia in 2008, Europeans inked a deal for a second gas pipeline with them, Nordstream 2. When they annexed Crimea in 2014, Europeans went to the Sochi Olympics (which happened that same year ) and went to the World Cup in 2018. And this is before you take into account the dozens of smaller incidents. Those aren't "threats to invade European territory", not even ones that were ignored…

Remind us, why US Congress funds a country on literally the other side of the planet?

Re: Tracing a powerful GNSS interference source over Europe

#173

Earlier quoted context omitted.

If you start shooting down stuff in orbit, it'll invite retaliation, but even without retaliation there's a huge risk of a Kessler syndrome (especially with all the stuff that SpaceX has put into orbit in recent years).

> especially with all the stuff that SpaceX has put into orbit in recent years I've heard this repeated a lot but I've never seen anyone do the maths. StarLink satellites are all in very low orbits, so intuitively it seems like most debris from a collision would just end up deorbiting.

LEO is crowded enough (mostly with Starlink) that satellites have to actively maneuver to avoid collisions [1]. There's research [2] arguing that we're probably already in runaway territory in some orbits — that is, debris from 1 collision likely produces more than one secondary collision — we're just way over on the left of the hockey stick curve. A bit of bad luck, or two megaconstellations that don't perfectly coordinate their operations with each other, could move us to the right pretty quickly.

[1] https://arxiv.org/abs/2512.09643

[2] https://conference.sdo.esoc.esa.int/proceedings/sdc9/paper/3...

Re: Tracing a powerful GNSS interference source over Europe

#174

Earlier quoted context omitted.

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 sup…

And? When the Russians invaded Georgia in 2008, Europeans inked a deal for a second gas pipeline with them, Nordstream 2. When they annexed Crimea in 2014, Europeans went to the Sochi Olympics (which happened that same year ) and went to the World Cup in 2018. And this is before you take into account the dozens of smaller incidents. Those aren't "threats to invade European territory", not even ones that were ignored…

The (misguided IMO) idea was that buying their gas and integrating them into world markets would strengthen ties and liberalize them in the medium term.

Nobody believes that anymore, post-2022.

Re: Tracing a powerful GNSS interference source over Europe

#175

Earlier quoted context omitted.

what was the outcome of the First Chechen War?

Why, the Second Chechen War.

okay, let me rephrase that: would it have taken two wars to subdue that tiny, sparsely populated country had that country been armed with nothing but sticks, stones, and Molotov's?

Re: Tracing a powerful GNSS interference source over Europe

#176

Earlier quoted context omitted.

Russia is the aggressor. What do you propose?

Playing Devil's advocate, given how much firepower Russia has, why is it so soft on Ukraine. I mean what is the endgoal for Russia here? Tire out the US/NATO Empire just as US did to Soviets in Afghanistan. I sometimes feel like all these events are orchestrated as Simon Dixon talks about them in his videos. https://www.youtube.com/@SimonDixon21/videos

Russia is throwing most of its deployable conventional firepower on Ukraine and whatever robots, KABs, missiles and drones it can manufacture. It is their manufacturing capability which is limited.

Have you seen the Oryx list of destroyed equipment? The defunct Soviet Union produced a shitton of armored vehicles, Russia inherited most of them and they all got burnt in Ukraine.

Re: Tracing a powerful GNSS interference source over Europe

#178
post #102

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?

They would be jamming their own glide bombs and drones then. It would be more useful to jam Russian airspace to defeat Ukrainian drone attacks.

Re: Tracing a powerful GNSS interference source over Europe

#180
post #28

Hmm - the timing is uncanny that only 2 days ago I started building a dead reckoning system.

GPS jamming has been happening for years and it's not like dead reckoning is an insane new concept

what are you saying? nothing of what you said is new or unknown.
Post reply on HN