I find it interesting how far into Poland Russia can jam GPS. I assume this is done from Belarus?
What is the max range I wonder? Probably same as radar? How much power does it take?
Flightradar24's new GPS jamming map
121–130 of 299 posts
Re: Flightradar24's new GPS jamming map
#122Earlier quoted context omitted.
Rapidly execute a series of maneuvers (flips, rolls) that cause the radios to lose signal.
So I'm a little skeptical on that front because military aircraft are still not that often broadcasting ADSB even during routine flights, at least in my (also close to the border) region. In theory the Air Force was supposed to have completed ADSB installation on their fleet last year but they blew the deadline pretty bad on even installing transponders, and of course they still reserve the right to disable them duri…
I can say that in San Antonio where I live and also operate a ADSB receiver the dedicated air force flight trainers (T38 Talons and T6 Texans) routinely fly with ADSB on. The C5 cargo plans also fly with ADSB on when doing training but I've seen non-training flights fly overhead with ADSB off.
I can actually receive high flighting planes over Del Rio so it would be interesting to see if they are reporting bad NIC values.
Re: Flightradar24's new GPS jamming map
#123Earlier quoted context omitted.
> 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 thin…
Russians do plenty of jamming that expands beyond their borders in the Baltic, either on purpose or just as a spillover as they don't care. Before Finland joined NATO they used to also violate our airspace on frequent basis, but since then that has stopped. https://yle.fi/a/74-20079715
They violated NATO airspace a lot with their "Bear" nuclear-capable bombers until very recently. Not sure if it's still happening. It was so frequent that it didn't make the news every time.
Re: Flightradar24's new GPS jamming map
#124https://www.flightradar24.com/data/gps-jamming Also: https://gpsjam.org/ | https://hn.algolia.com/?q=gpsjam (am I missing any other GPS jamming mapping or data collection projects?)
Worth adding that gpsjam does the exact same thing with ADS-B data.
This map is basically copied from GPSJAM.org, which started a while back.
Re: Flightradar24's new GPS jamming map
#125What if this Russian jamming crap causes another major loss of life like MH17? We really have to do something about this.
Airplanes don't need GPS to fly. Jamming GPS won't cause any crashes.
Re: Flightradar24's new GPS jamming map
#126Many of the patches are not surprising, but why is a small area between Germany and Sweden jammed?
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Re: Flightradar24's new GPS jamming map
#127I find it interesting how far into Poland Russia can jam GPS. I assume this is done from Belarus? What is the max range I wonder? Probably same as radar? How much power does it take?
More likely it is from around Kaliningrad
Re: Flightradar24's new GPS jamming map
#128It's kind of neat how this works: > As part of the ADS-B messages we receive from each aircraft, the Navigation integrity category (NIC) encodes the quality and consistency of navigational data received by the aircraft. The NIC value informs how certain the aircraft is of its position by providing a radius of uncertainty. > Poor NIC values alone might indicate a problem with an aircraft’s equipment or unfavorable pos…
> A single observer can't really say for certain that jamming is happening; you need a distributed sample from multiple different sensors over a period of time to have reasonably high confidence. Could you use RTLSDR triangulation to hone in on granular lat long of jamming sources? https://www.rtl-sdr.com/detecting-gps-jammers-in-augmented-r... https://www.rtl-sdr.com/kiwisdr-tdoa-direction-finding-now-f...
KrakenSDR would do a good job of this, they combine five RTLSDR into a coherent array. The top end of their tuning range is 1766 MHz which would include the 1575 MHz of the GPS L1 signal.
The little five antenna array can even attach on the roof of a car for a handy ground plane. Prob not a good idea to drive with it out there tho.
Re: Flightradar24's new GPS jamming map
#129What if this Russian jamming crap causes another major loss of life like MH17? We really have to do something about this.
The US has laws against interfering with GPS, but I don't think there's any global laws about GPS jamming, you'd need something from the UN but it doesn't seem like most countries would want to give up that ability - we can't even get people to stop making nukes and they have a much higher danger
Re: Flightradar24's new GPS jamming map
#130OBS: Does not seem to work in Safari on Mac. Chrome and Firefox works. Might be use of WebGL which Mac-Safari doesn't support.
I'm on Safari/macOS, and it works perfectly here.