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Affordable EMP Protection For Your Electronics!

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The Expendable:
Stainless, did you read the above posts about aluminum vs. steel for EMP protection?  Try putting a cell phone in your can and see if you can call it.  I think I would wrap the can in heavy-duty aluminum foil just to be sure.

Stainless:
Being able to call your cell phone has nothing to do with Electromagnetic pulse.  It is an electronic wavelength that can be blocked by a simple wire mesh if the mesh is small enough.

I know there a lot of theories running around the web, but I actually worked with EMP shielding in the Army so this is a topic I am very sure of.  The can that I showed is a basic construction of the EMP shielding containers that we used in the Army.

If you want to add layers of aluminum or anything else that is fine, but you must insulate the items from the metal shielding, that is the key.

By the way, dirt will block a cell signal but it does nothing to EMP.

The Expendable:
Yes, I know it is an electronic wavelength.  It has a frequency of between from 1kHz and 10GHz.  A cell phone signal has a frequency range of 380MHz and 1.9GHz.  I also know that a wire mesh is usually called for, but typically the wire mesh is copper or aluminum, not steel or iron.  A non-ferrous material is preferable.  My point was that if a cell signal can penetrate a steel can, an EMP pulse is likely to penetrate as well. 

This is from the futurescience.com website You are not allowed to view links. Register or Login:

"Many people in internet forums have suggested using steel enclosures of various kinds for an EMP shield for storing electronics equipment.  Although steel can be an electromagnetic shield, I have found it to be considerably inferior to better electrical conductors such as copper and aluminum in actual measurements in intense electromagnetic environments.  Steel has different characteristics from better electric conductors such as copper and aluminum, so the best situation if you are using an steel enclosure is to add a layer of copper or aluminum screen or foil as an additional layer of shielding."

I am not doubting that your Faraday cage would work.  I think a steel trash can is a good idea.  I just wouldn't make it my only line of defense against an EMP pulse.  I would wrap my items in insulated aluminum foil as well.

goinpostal:
Any galvanized container,that can be tightly sealed should work well against EMP.The galvanizing compound itself is a zinc alloy.Ever tried to get Cell phone,radio,or TV reception in a tin roofed house,quanset hut,or mobile home.The main things I keep shielded from EMP are my laptop in an aluminum diamond plate brief case.I also have assorted SDHC,and Micro SDHC cards,and a 1 TB portable hard drive,as well as a brain for my ram and suburban,and a digital multi-meter,in a steel fire safe.The cards and hard drive have how to's I've been downloading as I've had time to.If theres an EMP SHTF situation,any how to knowledge will be valuable for rebuilding civilization.Matt

Trajan:
I'm going to ditch my large military crate that I planned on using and I'm going with the can idea. The crate is just too large for my storage area.

I also picked up a bunch of anti-static bags of various sizes to individually wrap items and then heat seal them with my food saver to keep out both water and emp, and then bubble wrap them against shocks and for extra insulation

Sounds like a dumb question but where did you get the can? The local Lowes and HD only sell the plastic cans

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