Who cares about the Baltic Jammer? – Terrestrial Navigation in the Baltic Sea Region (39C3)

Comments

• stoy@lemmy.zip ⁨9⁩ ⁨hours⁩ ago

  I live in a suburb to the north of Stockholm, I have experienced the GPS jamming first hand.

  There were a few days when my car’s inbuilt GPS thought I was driving around in another suburb on the other side of the city.

  Does anyone know if GPS has the abillity to do signed packets?

  I mean, I’d rather the GPS fail completely, than giving me false data.

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  • SkybreakerEngineer@lemmy.world ⁨7⁩ ⁨hours⁩ ago

    Civilian-use GPS signals are unencrypted specifically because they want to be as open as possible. It was originally a military only system, that was only opened up in 2000 after a civilian airliner blundered into Russian airspace and got shot down.

    Military-only signals are encrypted. There are also newer civilian-only signals with checksums and on alternative frequencies but there aren’t enough of the new sats up yet to live on it fully. Check whether your phone supports dual-band GPS, or specifically the L5 signal. There are even apps you can download that will display the full output of your GPS chip, including every satellite in view.

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  • SpikesOtherDog@ani.social ⁨3⁩ ⁨hours⁩ ago

    Pretty sure that gps is a plaintext broadcast. It’s nice because it’s universally accessible, but it’s a target now that people rely on it.

    Back in the 90s my head was full of maps of my region because I drove a lot for work. Mobile online GPS is a game changer, since you get traffic updates in real time. While I suppose you could review your route ahead of time, there is not a known way to get relevant traffic updates unless you have a radio station just to that effect.

    My real concern for you would be a sudden information blackout.

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  • lemmydividebyzero@reddthat.com ⁨9⁩ ⁨hours⁩ ago

    At least, it did not tell you, you were in Kaliningrad… 😉

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