This week I tried to build a Faraday Cage. I failed. So instead of this post being about how to build a safe place to keep your electronics, it is now about how I failed at it.
For those of you wondering what the heck I am talking about…A Faraday Cage is a shield that blocks external electric fields. Regardless of its name, it has nothing to do with a LOST character. Why would one need to build a Faraday Cage you ask? The theory is that if an EMP (ElectroMagnetic Pulse) were to occur, all electronic equipment in its area would be destroyed. Placing electronics inside a Faraday Cage protects them from the damage of the pulse. It’s the same reason your cell phone often doesn’t work in an elevator. Pulses can be caused by several things but the prevailing thoughts are that an EMP would come in the form of either a terrorist attack or a solar flare.
I was under the impression all you needed was a steel or other metal container, foam, and cloth to wrap the items in. So I started with my supplies gathered. I was attempting to store away one NOAA radio, an old cell phone, batteries and some AA universal battery chargers for the phone and radio.
I had this cute tin I had purchased awhile back from Home Goods. Bonus, no one would realize it right?
And then I go the bright idea to test it. I opened it back up and put my cell phone and called it. I was pretty embarrassed to find that I could hear my cell phone ringing. Yikes. It clearly wasn’t blocking the signal. So ,what went wrong? I have a couple theories.
- The tin I was using may not be aluminum, steel or thick enough.
- I may need to duct tape the lid completely which would ruin my decorator look.
- The foam inside wasn’t thick enough.
I will be continuing to test different ways to do this and would love to hear your theories (besides me just being an idiot) as to what I did wrong in the comments. I will post the results so that you can also build one when I get it right. Until then, I think I will investgate the ready made ones and see if that just maybe a prep worth paying for!