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  • ryedaft
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    14 小时前

    You can do directed WiFi with pretty long range. But you have to set up both transmitter and receiver antenna, and you’ll want to tune the direction of both antenna since radio waves don’t travel in a straight line along the surface of the Earth. Bit of a faff really.

    Long-range Wi-Fi - Wikipedia - https://en.m.wikipedia.org/wiki/Long-range_Wi-Fi

    • Kairos@lemmy.today
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      14 小时前

      The point is that they can’t set up a receiver. Modern warfare uses a lot of land.