What’s your evidence, Richard Easton??!?

  • Socsa@sh.itjust.works
    link
    fedilink
    English
    arrow-up
    25
    ·
    7 months ago

    Frequency hopping in wifi was never well supported. 802.11a was primarily DSSS and afaik, very few, if any consumer devices supported the FHSS mode.

    • henfredemars@infosec.pub
      link
      fedilink
      English
      arrow-up
      19
      ·
      7 months ago

      Indeed. Just speaking from a signals point of view, frequency hopping is not competitive for high bandwidth applications. It is however surprisingly durable in the presence of interference despite its simplicity. We’re seeing this play out in newer Bluetooth standards.

      • maynarkh@feddit.nl
        link
        fedilink
        English
        arrow-up
        9
        ·
        7 months ago

        Isn’t it still extensively used for RC stuff like drones and model aeroplanes / cars though? Asking as an amateur.

        • Warl0k3@lemmy.world
          link
          fedilink
          English
          arrow-up
          11
          ·
          7 months ago

          It very much is! It’s widely touted as a safety feature, since interference on one frequency means you wont lose control of the flying blender for more than a few milliseconds (well, usually…)

        • henfredemars@infosec.pub
          link
          fedilink
          English
          arrow-up
          6
          ·
          7 months ago

          Yes. It works well because this is an application that requires low bandwidth, and interference could cause you to lose control and is even expected with multiple operators in the vicinity. You definitely want to have resilience to other interfering signals.