A human on earth. Ask me about weird tech. Bonus points if it radiates.

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Cake day: June 23rd, 2024

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  • Many microwaves suck as faraday cages, because they are made to be an effective cage only for a very specific frequency (the one the microwave runs at). Unfortunately, mobile radio frequencies are all over the place, for historic, technical, competition etc. reasons. So it is not a good Faraday cage, unless you want to only block out a specific radio (usually, 2.4 GHz Wifi and Bluetooth should be blocked).

    You can build a good, vhf to multi-gigahertz frequencies cage by using a metal box and covering all the gaps, cracks etc. in tinfoil or copper tape. Bonus points for grounding. I made a decent one (for some unrelated radio experiments) out of a metal box and a tin foil seal, -60 dB at 2.4 GHz and no reason why it wouldn’t work at other frequencies.




  • LH0ezVT@sh.itjust.workstoTechnology@lemmy.worldmatrix is cooked
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    3 months ago

    Honestly, I get why one would be discouraged by signal, but as long as your threat model is not “NSA and mossad have a price on my head”, I think it is still the best non-federated alternative. I’d rather take a flawed messenger with well regarded encryption than a beta version that nobody with time and crypto knowledge ever looked at.