it is doing its best to look like people's expectation of a Faraday Cage. But have a look at the solder along the front -- that's not continuous. Also the mesh holes are not equal-sized in all polarisations. Most damningly, there is no effective RF ground from the Cage into the earth.
Generally the real deal looks very much like a safe, with airflow being through baffles so there is no line of sight from the equipment (that is, a signal has to strike a ground). There is a vast deal of care to ensure that each plate has a ready RF path to ground -- to prevent the Cage from becoming a re-radiating antenna. Because of the 'antenna' risk there will be backup earth paths so that no one failure causes the system to fail. There will be huge cables to dedicated ground stakes.
Then every cable will have its own treatment to stop it piggy-backing other signals. Particularly the mains, since that leaves the building. Really serious systems work from battery, which is charged by a rectifier when the system is not in use, just to avoid any possibility of signal on exterior cables.
Of course the Faraday Cage concept is widely used. For example if you are building shielding for a power supply you can drill holes for airflow which leak frequencies which are not those generated by the power supply.
Glen T
npub1zp…dw5x6
2025-02-18 11:39:58 UTC
in reply to nevent1q…kkhw
Author Public Key
npub1zp0kvyfn084txms9ahckgd8ya78fvnkukh035gu0jwzq2zcchcvqxdw5x6Seen on
wss://relay.momostr.pinkPublished at
2025-02-18 11:39:58 UTCEvent JSON
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