There are other ways of shielding units and mobile devices from an EMP, by encasing them in a Faraday Cage.
The shielding bags are very nice, because they come in many sizes that can be stored in your BOB, a desk drawer, your vehicle, or anywhere else you can think of where you may need one for quick use to protect your electronics from an EMP. If you have any questions on this subject and your Faraday Cage project, please contact me. A protective measure to protect electronic devices from the effects of EMP include the Faraday cage.
To further protect your equipment, purchase a metal screen about 6 inches wide and as long as the circumference of the can.
You should be sure to insulate the electronics inside the faraday cage away from the cage itself.

I would agree with G, insulating the interior items from making contact with the cage is essential.
You may not be not be so inclined to have a large metallic Faraday cage with you at all times, these shielding bags are a great choice of use. Fold the metal screen in half, length wise, and then place it around (and fold over) the lip of the garbage can. If the can has been painted, make sure to remove the painted area around the lid where it contacts with the can itself (and the inside of the lid) with sand paper, so as to make good metal-to-metal contact.
IMHO, using these bags inside a metal garbage can which is insulated inside is the way to go. In recent discussions of EMP, there has been much debate on the need for the ground – but I can tell you, from years of experience, an ungrounded shield on something sensitive does absolutely NOTHING.

It’s called the Silent Pocket, which is designed to stop signals from entering an electronic device for the purpose of leaving the device on, but not transferring information or ringing when in important meetings. The lid should then fit snugly against the screen and can, protecting all equipment contained inside the can. Just remember if a solar flare produces reverse current flow up from ground to keep your faraday cages away from electrical conduit, wiring and recepticals around the home. Faraday cages we made out of copper sheeting in college and grounded to earth couldn’t receive anything inside them.

Does a faraday cage need to be grounded
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    Author: NikoTini
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  3. 09.06.2014 at 15:57:18

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