this post was submitted on 15 Jul 2025
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I once made one of these with a bigger can and mounted it on an old 10' satellite dish. Managed to get Wi-Fi across several thousand yards without issue
wait i thought for some reason that pringles can sized waveguide would have cutoff frequency above 2.4ghz. nevermind, there's something better because bigger aperture can get you more directivity like this https://lea.hamradio.si/~s53mv/wumca/cup.html i made two out of cookie tins and it works over 500m at least
We didn't use Pringles, I think it was these big peaches cans
helical antennas work fine too and look goofy as hell
i've used the same (800ml can) and this one works well. cookie tin is 15cm dia 8cm tall and it works, but size can vary a bit. you can copy or scale slightly designs of 13cm band antennas