Comment on What if the Internet Goes Down? - 15 Jan, 7PM CET

droning_in_my_ears@lemmy.world ⁨1⁩ ⁨month⁩ ago

• lepinkainen@lemmy.world ⁨1⁩ ⁨month⁩ ago

  They’re a mesh walkie-talkie, but you don’t need to walkie or talkie 😁

  Meshnet means that if A can see B and B can see C, then A can message C, it’s routed through B automatically.

  Also it’s text only, not enough bandwidth for speech

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  • cryoistalline@lemmy.ml ⁨1⁩ ⁨month⁩ ago

    Isn’t this just like the internet though?

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    • bagelberger@lemmy.world ⁨1⁩ ⁨month⁩ ago

      That’s the point, but it doesn’t require an ISP

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    • lepinkainen@lemmy.world ⁨1⁩ ⁨month⁩ ago

      Internet routing is a bit more complex, but basically yes.

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  • PalmTreeIsBestTree@lemmy.world ⁨1⁩ ⁨month⁩ ago

    So it’s like a pager?

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    • JackbyDev@programming.dev ⁨1⁩ ⁨month⁩ ago

      When I think of pagers I think of receiving only not sending. Meshtastic devices can typically do both.

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    • iglou@programming.dev ⁨1⁩ ⁨month⁩ ago

      Kind of. But it is my understanding that pagers work with centralised transmitters/stations. I am no expert though, so maybe there is mesh-like pager protocols.

      This is decentralised, a mesh. Routing is done through the terminals themselves, rather than through a centralised transmitter.

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• paequ2@lemmy.today ⁨1⁩ ⁨month⁩ ago

  walkie talkie

  Yeah, I think so. I saw a video where someone called it “a walkie talkie, but for sending text messages”. People use these for going on remote hikes, hunting trips, or protests. Basically, any area where you can’t use a cellphone. They’re not a replacement for cellphones, they fill a different usecase.

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• psoul@lemmy.world ⁨1⁩ ⁨month⁩ ago

  I think Ham radio means hobby and amateur radio, I.e. not professional. Radio is a type of radiation at very long wavelength. From the wiki: “long waves can diffractaround obstacles like mountains and follow the contour of the Earth (ground waves), shorter waves can reflect off the ionosphere and return to Earth beyond the horizon (skywaves), while much shorter wavelengths bend or diffract very little and travel on a line of sight, so their propagation distances are limited to the visual horizon.”

  Others have explained mesh pretty well.

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