I wonder why there's some jamming near a small section of the Texas/Mexico border?
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Flightradar24's new GPS jamming map
31–40 of 299 posts
Re: Flightradar24's new GPS jamming map
#32So how should I interpret this? The map lacks geopolitical boundaries, so it's hard to interpret. There looks like a big hole of no data over Ukraine, where I'd most expect GPS jamming, but I suppose there are no civilian flights either. Maybe they could setup an GPS observation station on the ground at a surveyed point to get data there. There's a big red blob over Turkey, is that maybe the southern edge of the reac…
The hole over Ukraine is definitely the lack of civilian flights. Another notable spot is Kaliningrad, the Russian exclave. It looks relatively normal on some days, like today, but on others like yesterday it's covered by solid red stretching far into Poland, Sweden and even Germany.
> Another notable spot is Kaliningrad, the Russian exclave. It looks relatively normal on some days, like today, but on others like yesterday it's solid red.
Oh yeah, I totally forgot that was a thing, and that explains that spur of red in the Baltic. I'd (probably incorrectly) assumed it was some kind of spillover from jamming in Ukraine.
I didn't realize you could look at it over multiple days. One interesting thing about that blob is the outline of red seems to always be there, in the same shape, but the middle is often green. Maybe that's some artifact of their agreement algorithm? More overflights around the edges than through?
It also looks like there's some jamming in Estonia? Or maybe that's just the edge of jamming around St Petersburg?
Re: Flightradar24's new GPS jamming map
#33I wonder why there's some jamming near a small section of the Texas/Mexico border?
That is Eagle Pass, TX. The infamous, massive border crossing area where suspected criminal border crossers are corraled under the bridge, where Elon visited, etc. The jamming is done to make crossing the border without going through the checkpoint more difficult
Is there some official source for that? If so, is it just GPS or do other GNSS constellations get jammed too?
Re: Flightradar24's new GPS jamming map
#34What's going on in that part of western australia? It's a very empty area
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Re: Flightradar24's new GPS jamming map
#35The choice of cells as a fundamental unit is interesting, I guess it’s better than a color coded gradient map. But this will still suffer from centroid issues.
Re: Flightradar24's new GPS jamming map
#36Is the data actually interesting? I feel like any place that would have widespread jamming would also see routing away of non-military aircraft meaning you'd never see the jamming taking place except if you happen to get lucky and the jamming zone is larger than the "stay out" zone. This makes sense then why the map is entirely green with some red just at the periphery of Ukraine with the majority of Ukraine having n…
If you read the article, jamming is based on uncertainty of the aircraft, just because it's uncertain, doesn't mean that it's dangerous level of uncertainty
Re: Flightradar24's new GPS jamming map
#37So how should I interpret this? The map lacks geopolitical boundaries, so it's hard to interpret. There looks like a big hole of no data over Ukraine, where I'd most expect GPS jamming, but I suppose there are no civilian flights either. Maybe they could setup an GPS observation station on the ground at a surveyed point to get data there. There's a big red blob over Turkey, is that maybe the southern edge of the reac…
hole = no measurement
Re: Flightradar24's new GPS jamming map
#38What's going on in that part of western australia? It's a very empty area
> What's going on in that part of western australia? It's a very empty area
You answered your own question. Put 2+2 together.
Re: Flightradar24's new GPS jamming map
#39Is the data actually interesting? I feel like any place that would have widespread jamming would also see routing away of non-military aircraft meaning you'd never see the jamming taking place except if you happen to get lucky and the jamming zone is larger than the "stay out" zone. This makes sense then why the map is entirely green with some red just at the periphery of Ukraine with the majority of Ukraine having n…
This is a case where nominally, with a solid understanding of geopolitical events, maybe it's not interesting on average. BUT, all of a sudden something might pop up one day. The accessible, "crowdsourced" data is helpful to have in those cases.
Re: Flightradar24's new GPS jamming map
#40Many of the patches are not surprising, but why is a small area between Germany and Sweden jammed?
A small area between Estonia and Finland likewise.