EMP-hardened sex dolls. Warning time for catastrophic solar EMP bombs. Great stuff, but all I wanted to know was how well those bags could provide shielding, compared to simpler methods like tin cans and aluminum foil, so items inside could not be detected or accessed - any information on that topic?

 

EMP-hardened sex dolls. Warning time for catastrophic solar EMP bombs. Great stuff, but all I wanted to know was how well those bags could provide shielding, compared to simpler methods like tin cans and aluminum foil, so items inside could not be detected or accessed - any information on that topic?

Yes, the bags provide some shielding but at low values of attenuation. A signal 30-40dB down might stop access on the regular network but a penetration expert with good equipment will still be able to detect and access the device.

 

Faraday shields typically have screen openings much, much less than the wavelength of the offending electric field.

Interrogators have difficulty reading when the interrogated object is near (not necessarily inside) a metal can. Modern wallets have shielded CC pockets (foil). My Ford F-150 key-fob works when wrapped in Reynold's wrap foil, but some attenuation was noted with distance. Neighbors CC's were stolen when he went to a local fair. He did not have a shielded wallet. A RFID seminar I attended opened a new technology for identifying, interrogating and modifying data. Boeing aircraft currently uses RFID for all parts, showing p/n, mfgr., date installed, maintenance history (if applicable).