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GPSJam: Daily Maps of GPS Interference

gpsjam.org

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Re: GPSJam: Daily Maps of GPS Interference

#81

A quick update on some of the infrastructure behind the map: One day of being on the front page of HN has used up half of the Mapbox free quota of map loads. To sustain this level of traffic would cost me something like $2000/month just for Mapbox. Since this is a non-profit project that I do in my spare time, something is going to have to give.

I hope you don't mind if I'll post your donation page for HN to see: https://skycircl.es/donate-nerd-mode/

Re: GPSJam: Daily Maps of GPS Interference

#82
post #33
post #22

Earlier quoted context omitted.

Perhaps they are jamming GPS and Galileo in favor of Glonass. They are certainly concerned about US GPS-powered artillery like the HIMARS given to Ukraine. They’d need fairly precise jammers because the frequencies are only 50MHz apart (GLONASS uses a frequency of 1.602 GHz, whereas GPS uses 1.57542 GHz).

You are underestimating how vast Russia (and Ukraine) are. Moscow is out of reach even for the longest range (300km) HIMARS missiles which are not supplied to the Ukraine. GPS jamming protects Russia's command and control structures from American intermediate range cruise missiles that can be launched from Mk41 launchers in Romania and Poland as well as from American ships.

GPS spoofing will not prevent a US attack on Russia, it may prevent angry Russians from finding Putins' office, though.

Re: GPSJam: Daily Maps of GPS Interference

#83

I made this site. Copying a comment I made on HN a few weeks ago: The ADS-B signals that many aircraft broadcast include not just the aircraft's GPS positions, but also a measure of GPS accuracy (strictly speaking, ADS-B doesn't talk about GPS specifically and can handle any sort of navigation technology; I'm sure there are some planes out there reporting positions based on inertial navigation systems, with correspon…

Great work - this is remarkable.

Re: GPSJam: Daily Maps of GPS Interference

#84
post #33

Earlier quoted context omitted.

You are underestimating how vast Russia (and Ukraine) are. Moscow is out of reach even for the longest range (300km) HIMARS missiles which are not supplied to the Ukraine. GPS jamming protects Russia's command and control structures from American intermediate range cruise missiles that can be launched from Mk41 launchers in Romania and Poland as well as from American ships.

GPS spoofing will not prevent a US attack on Russia, it may prevent angry Russians from finding Putins' office, though.

What does GPS have to do with finding Putin's office?

Re: GPSJam: Daily Maps of GPS Interference

#85

I made this site. Copying a comment I made on HN a few weeks ago: The ADS-B signals that many aircraft broadcast include not just the aircraft's GPS positions, but also a measure of GPS accuracy (strictly speaking, ADS-B doesn't talk about GPS specifically and can handle any sort of navigation technology; I'm sure there are some planes out there reporting positions based on inertial navigation systems, with correspon…

Most of the red zone around Moscow is situated on east and northeast, whereas "oligarch dachas" are mostly located directly west of Moscow (that hexagon is also red). I think it's mostly aerospace installations apparent on that map, such as https://ru.wikipedia.org/wiki/Медвежьи_Озёра_(центр_космичес... Not sure what's going on in Pereslavl-Zalessky. Having said that, of course GPS/GLONASS in the form of consumer pho…

It's also pretty much constant around Moscow City complex - at first it teleported you to VKO but later began moving you to SVO.

Re: GPSJam: Daily Maps of GPS Interference

#86
post #11

I made this site. Copying a comment I made on HN a few weeks ago: The ADS-B signals that many aircraft broadcast include not just the aircraft's GPS positions, but also a measure of GPS accuracy (strictly speaking, ADS-B doesn't talk about GPS specifically and can handle any sort of navigation technology; I'm sure there are some planes out there reporting positions based on inertial navigation systems, with correspon…

I noticed that the map is perhaps the one that moves more smoothly on my browser (Firefox Android), included the browser version of Google maps. Well done but how did you do it? On the other side I couldn't use the history button to come back to HN after visiting the site: too many URLs pushed into history. As a very low priority activity, is there a way to keep the URL constant and generate one only if someone wants…

It's using MapBox which has a very nice WebGL map renderer.
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