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119

Are they any good to ensure full privacy when it comes to tracking or spying?

As I understand they would have to be able to block 5G, WiFi and Bluetooth.

Are they any good to ensure full privacy when it comes to tracking or spying? As I understand they would have to be able to block 5G, WiFi and Bluetooth.
[–] • 4 pts

With the level of surveillance and ai tools being developed to assist I imagine a traveling dead spot will be subject to greater scrutiny. Then again the US govt. is pretty incompetent. It's hard to say. Anyways they got this guy https://www.dailymail.co.uk/news/article-3488793/Pictured-Chicago-man-using-signal-jammer-stop-chatty-cell-phone-talkers-commute-home.html

[–] • 1 pt

So Faraday box it is. I know they sell those Faraday pouches and bags, but I don't trust any bendy material like that to hold.

[–] • 3 pts

A "jammer" means a device that broadcasts EM waves, to drown out any legitimate signals. Such a device would be a massive FCC violation if ever turned on. Go straight to Federal prison, do not pass go, do not collect $200.

If you mean something like a Faraday bag, that may work. Any Faraday cage results in a net electric field inside of it of zero - so the phone would not be able to detect the cell network. It would still be pinging like crazy and that could escape the Faraday cage... unless you ground it.

[–] • 1 pt

Faraday cages also have to be designed to block frequencies. For cell phones, you would have to block multiple freqs at once.

A discussion on it. https://physics.stackexchange.com/questions/149607/what-is-the-relationship-between-faraday-cage-mesh-size-and-attenuation-of-cell

[–] • 0 pt

Something like this for personal use, one would just use aluminum foil. Being solid (non-mesh) it should work for all frequencies a cell phone would use.