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Flightradar24's new GPS jamming map

flightradar24.com

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Re: Flightradar24's new GPS jamming map

#21

Post by wongarsu »

tivert wrote: post #9

So 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.

Re: Flightradar24's new GPS jamming map

#22

Post by machinekob »

krzyk wrote: post #18

Poland has some big issues with this jamming. I wonder, how does it influence navigation in mobiles/cars?

Most of the time it is not that strong but few weeks ago my family living north have problems with mobile internet and phones (gps was almost fully dead) for like two days cause of interference from r*ssia.

Re: Flightradar24's new GPS jamming map

#23

Post by imoverclocked »

tdudhhu wrote: post #13

Is interference the same as jamming? I am absolutely no expert in this but I can imagine that even natural occurrences can interfere with the GPS.

There are things that will naturally interfere with GPS and they are fairly well known. The FAA provides an expected outage map [1] (a forecast, if you will) for pilots that may need that info. Jamming is an act by humans to intentionally disrupt the GPS signal.

[1] https://sapt.faa.gov/outages.php?outageType=129001450&outage...

Re: Flightradar24's new GPS jamming map

#25

Post by mcculley »

muglug wrote: post #20
tivert wrote: post #9

So 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…

Their data comes from commercial flights. If there are no flights, there's no data. There aren't many commercial flights over Ukraine or Belarus right now, so that whole area's empty.

ADS-B is only commercial flights? I thought many kinds of flights are broadcasting. Does Flightradar24 only track commercial flights?

Re: Flightradar24's new GPS jamming map

#26

Post by barryrandall »

wyldfire wrote: post #6

I wonder why there's some jamming near a small section of the Texas/Mexico border?

You're not the only person: https://web.stanford.edu/group/scpnt/gpslab/pubs/papers/Liu_...

TL;DR: It's weak signal, not jamming. The weak signal reports come from military training aircraft carrying out maneuvers that cause temporary signal loss.

Re: Flightradar24's new GPS jamming map

#27

Post by mcpherrinm »

mcculley wrote: post #25
muglug wrote: post #20

Earlier quoted context omitted.

Their data comes from commercial flights. If there are no flights, there's no data. There aren't many commercial flights over Ukraine or Belarus right now, so that whole area's empty.

ADS-B is only commercial flights? I thought many kinds of flights are broadcasting. Does Flightradar24 only track commercial flights?

I doubt there’s any private flights over Ukraine too. Military planes generally don’t advertise their location in combat zones

Re: Flightradar24's new GPS jamming map

#30

Post by wongarsu »

vlovich123 wrote: post #7

Is 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…

The jamming over Kaliningrad affecting civil aviation has made the news recently, and the map does provide some interesting insights both how far the effect reaches into Poland and Sweden, and how often it is turned on and off.
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