Introduction: EASIEST FARADAY PHONE POUCH

I have seen a lot of faraday cages on Internet but they all are too difficult to make and takes a lot of money so I decided to make the easiest one and here it is This Faraday Cage phone pouch blocks all radio signals coming in or out of your cellphone. 


The purpose of this pouch is to prevent access to your phone and its data (e.g. location) if and when you so choose. Before placing your phone in the pouch, be sure to put it in airplane mode as the phone will drain its battery trying to find a signal.



If you think you may need a Faraday cage and you don’t want to spend too much time or money and you want it to look nice in your den or home office then this is the project for you.  You can use your Faraday cage to store some of your electronic devices when they are not in use and protect them against the effects of a solar storm:

http://en.wikipedia.org/wiki/Solar_storm_of_1859

or an electromagnetic pulse from an exoatmospheric nuclear detonation:

http://www.empcommission.org/docs/empc_exec_rpt.pdf

If you do not have one already, you will need 



Step 1: WHY DO WE NEED IT AND HOW IT WORKS

Imagine you're headed out on a big road trip with your favorite songs blasting on the radio and a cool breeze is blowing in through the window. You've finally found peace... until your cellphone begins to ring. Sure, you could've turned it off, or maybe even taken out the battery (if the manufacturer will even allow it!), but what if you want real freedom from your phone without having to compromise it or, dare I say, leave it at home? With the Faraday pouch , you won't have to do either of the above. As from this pouch you will be free from the constant connectivity that distracts and ties you down to the modern world. Say goodbye to GSM, GPS, Bluetooth, WiFi, and NFC. The government can't track you and your peeps can't text you, but who needs 'em? You've got the open road...


In technical terms, the "FARADAY PHONE POUCH" is a Faraday cage. At its most basic, a Faraday cage is simply a conductive enclosure. The physical structure of the enclosure determines how effective it is at absorbing electric charge or attenuating RF signals. We're interested in the RF blocking aspects of the Faraday cage, so we'll need to figure out what kind of material we can use.

Most modern cell phones and other personal gadgetry contain a variety of radios that operate up to 2.4 gigahertz, the exception being 802.11ac for Wi-Fi which operates at 5 gigahertz. Let's use this higher measurement as our goal to ensure even greater success at attenuating the lower frequencies. In order to properly block a 5 GHz signal, we'll need to figure out the wavelength and how tight our enclosure needs to be, which we can do with the following equations:

λ = c / f

x = λ / 10

λ = wavelength in meters

c = velocity of light in meters per second

f = frequency in Hertz

x = maximum diameter in metersof any holes in the surface of our Faraday cage

Plugging everything in gives us:

λ = 299,792,458 / 5,000,000,000

λ = 0.0599584916 m

x = 0.0599584916 / 10

x = 0.00599584916 m (~6 mm)

In order to block a 5 GHz signal from entering or leaving our box, we'll need to make sure there are no holes or gaps greater than 6 mm in diameter. 

Step 2: Whats Needed

ALUMINIUM FOIL
SCISSORS
PAPER
TAPE

Step 3: Take a Paper

Take a thick paper and make a pouch of it.Now you need to tape and fix that shape

1. Measure the width, height, and depth of your phone (+ case, if you have one).

2. Add 1" to your phone width measurement and 2" to your phone height measurement. 


3. Leave an inch or two above the phone so the top can be folded over like an envelope.

Step 4: THE MAIN THING

Make a pouch of aluminium foil a bit bigger than the first one paper pouch

Step 5: Once Again

Make one more paper pouch a bit bigger than the both of them

Step 6: 3 Pouches Ready

make sure that they are taped properly individually

Step 7: Combine Em All

Put the blue paper pouch in the foil pouch and then
put the foil pouch in the white paper pouch

Step 8: MAKE THEM ALL FIX

And add a flap of paper fitted with foil in between two layers and also attach it

Step 9: FARADAY CAGE PHONE POUCH READY

THIS WORKS PERFECT

Alternatively, you can use velcro, a safety pin, or any other means to hold down the top flap.


And here's the Wikipedia blurb on Faraday Cages, an excellent source if you want to learn more!

http://en.wikipedia.org/wiki/Faraday_cage

Step 10: A BIGGER POUCH FOR TABLET

This is the bigger version of the phone pouch to fit your tablet size requirements


For additional information about building, testing and installing Faraday cages, click the link below and check out the videos:

http://www.prepper-resources.com/the-emp-threat-microwave-ovens-and-faraday-cages/

Step 11: Some More Easy Faraday Cages

An metal almirah also works a faraday cage

Place phone inside the Faraday Cage pouch whenever you want to cut off all radio signals coming in and out of your phone.


Curious as to how this works? Awesome! In super simple terms, a Faraday Cage "traps" radio waves in the wires that make up the cage.



In the event of a nuclear strike an EMP or Electromagnetic pulse is released frying all circuits near the area.  This inscrutable have taught you how to build a  Faraday cage pouch . A  Faraday cage is that protects all electrical items placed in it. I'm sure there are better ways to build a Faraday cage but this is a cheap version.


I'm quite happy with the mechanism and the effectiveness of the box (I've successfully failed to call myself during every test!). If you plan on making your own Faraday cage, let me know and show off your work in the comments!

CHALLENGE YOU TO FIND FARADAY CAGE EASIER AND CHEAPER THAN MINE

Comments

author
cophet (author)2016-06-19

Nice Faraday phone pouch and your:

Challenge accepted!

Thanks

author
abellefeuille (author)2015-02-22

ok so lets just say you happen to have your cell phone in your Faraday Phone pouch when the solar storm or electromagnetic pulse from an exoatmospheric nuclear detonation occurs, Wont all the cell towers be knocked out and you still will just have a paperweight? Still I can see how it would be a way to protect your privacy when someone is trying to access your cell phone.

author
xarlock667 (author)abellefeuille2015-03-02

Nope. You will have the only working computer within miles of your location. You will have a flashlight, camera, (Possibly GPS), and any number of apps, as well as your personal adult video collection, OR if you are really smart, hundreds of episodes of Bleach as well as the manga to keep you entertained in the apocalypse. Cell towers are only necessary for calling and internet. The phone itself is a wonder item unto itself.

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