https://en.m.wikipedia.org/wiki/Faraday_cage https://en.m.wikipedia.org/wiki/Faraday_cage “Faraday cages are also used to enclose devices that produce RFI, suc

https://en.m.wikipedia.org/wiki/Faraday_cage https://en.m.wikipedia.org/wiki/Faraday_cage “Faraday cages are also used to enclose devices that produce RFI, such as radio transmitters, to prevent their radio waves from interfering with other nearby equipment.”