Faraday Cage

Homesteading & Country Living Forum

Help Support Homesteading & Country Living Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
EMP is not at the top of my mind. Still it seems a bit wrong to go out and use money on Ham radio and other electronic stuff and not protect them. Even if should be with plastic bag and foil. That's what I will do. It will be stored in the basement most of the time anyway.
 
Lots of Faraday cages in the home: microwave, oven, fridge, dishwasher, dryer, washing machine....

I personally like the ones folks have made out of metal cabinets. The nice thing is, you can leave vital things stored in there (so if unexpected EMP, they are ok):
two-way radios, replacement electrical parts for your vehicles, flashlights, AM/FM radio, power tools, gas powered tools, etc.

I've also heard from some I consider to be experts in it, that even a large enough metal roof can shield things under it, if they are much smaller than the roof, during a pulse.
 
Trying to make a checklist of everything to keep in the cabinet.
Here's the list so far....

Open to any suggestions though:

TOOLS/PARTS

Chainsaw
Power Saw
Power Drill
Jig Saw
Electric Meter
Spare Truck Electronics
Spare Tractor, Generator, and Mower Electronics
Weed Whacker
Spare Batteries for Trucks, Tractor, Mower

COMMUNICATIONS

Handheld Radios and Chargers
Handheld HAM Radios and Chargers

POWER

Solar Battery Charger
Inverter
Batteries (rechargeable)
Bicycle-power generator

OTHER

Flashlights
MP3 Players
Jump Drives
Laptop (and peripherals)
E-Reader (loaded with survival books)
Night Vision Devices
Geiger Counter
DVD Player (with screen)
Digital Cameras
Aluminum Tape
Electronic Medical Equipment
Spare Truck Keys and FOBs
 
power tester for items that have power to them.a battery tester for testing batteries for how charged up they are and all.a emp proof garage/shed for vehicles,if you don't have that already.a rechargeable/portable jump starter for vehicles.mine has a lighter for cell phones.and a usb port for my nook.and it has a air compressor as well.i went into harbor fright the other day and bought a 120V-,80W direct plug-in power converter to plug into a car lighter for keeping it charged up.plus that'll come in handy if im out somewhere and have to air up a tire.oh yeah.i keep a 25 foot extension cord in the van as well.that way i can keep jump starter charged while using the air compressor..
 
Would be pretty difficult to shield the entire garage. From most tests, the construction of cars (at least those that aren't all fiberglass) makes them hold up surprisingly well to EMP. A pretty small percentage were affected, but granted, most large-scale tests are actually pretty old. I'll be a lot of modern vehicles are much more susceptible.
 
Guys your car is also a faraday cage it's built from factory to Handel lightning strikes and its grounded with the rubber tires so for those who can't build them just use your car. Watch this video


Don't forget you cant touch the sides, steering wheel, floor, pedals or roof. As far as I know it's the same for the cases to so I'd say line them well with rubber.
 
Not sealed against the waves though. For all metal cars, not as much an issue, but for those that are more fiberglass, less protection. Lightning is one thing, it can be channeled. The waves are different. With all the newer e-brain type cars, I'd bet a whole lot of them would be planters after a deliberate, weaponized EMP.
 
Im wondering how a gun safe would work as a faraday cage. They're made out of metal usually with some sort of interior padding so I think they must be somewhat effective. And speaking of EMPs, that's a good reason to prefer gun safes with purely mechanical locks as opposed to electrical ones.
 
The charge is only on the exterior surface of the metal. Consider a shipping container. Buried it is already grounded well. I also think if your cage is tight enough, place it under water. The water would rapidly dispell any charges to ground long before damaging your articles. But if it ain't sealed up , the emp would have been nicer
 
Ok here is the first "how to" I found using a metal cabinet. I like this one due to its size.



LOL.. that cabinet isn't going to protect anything from a nuclear EMP (E1) pulse.


I was just looking at this video from MIT, should give ya guys some info on how a faraday cage works! ;)



The key words in this video are where the professor clearly states "electrostatic charge" not "electromagnetic pulse"

The Faraday cages he is showing would do a fine job of insulating against static charges and probably even an E2 and E3 pulse.. But not an E1.. not even remotely... A NEMP would penetrate both cages as if they weren't even there...
 
Im wondering how a gun safe would work as a faraday cage. They're made out of metal usually with some sort of interior padding so I think they must be somewhat effective. And speaking of EMPs, that's a good reason to prefer gun safes with purely mechanical locks as opposed to electrical ones.
It wouldn't.. A gun safe would probably have a very small attenuation.. not nearly enough to protect something electronic..


The charge is only on the exterior surface of the metal. Consider a shipping container. Buried it is already grounded well. I also think if your cage is tight enough, place it under water. The water would rapidly dispell any charges to ground long before damaging your articles. But if it ain't sealed up , the emp would have been nicer
Not sure about your shipping container, but mine has a wood floor that would make the entire thing transparent to an E1 pulse.

Now, putting the container underground would help.. but you still have the problem of the door.. ANY crack or opening could let an E1 pulse in. Of course it would certainly help attenuate the pulse being that it only has a small entrance and the container underground... but I wouldn't count on just that alone..
 
I am new to prepping for the possibility of an EMP, so please bear with me. The Faraday box, can, cage, etc. phenomenon, of which everyone has a solution, is very confusing / conflicting. Simple question: If I put a cell phone in a nylon pouch and seal it up tight in several layers of HD aluminum foil, would it be EMP protected?
Thanks in advance
 
the problem with an EMP is not the stuff that you might be able to protect but the stuff outside your control, like the electric grid, the computers in the filling station, the computers that control the traffic lights, the computers in the power station, any computer that control any sort of public access come to that.
good thing is that CCTV will be down too!
 
That part is understood; I just used cell phone as an example. I'm thinking more like handhelds like CB, Ham and other two-way communication devices. If they are in a box or a can, they're really not that portable on a day-to-day basis. However, if they are in an insulator, then wrapped in foil, then in a waterproof sleeve to protect the foil from damage, they could easily be kept in an EDC pack.
 
That part is understood; I just used cell phone as an example. I'm thinking more like handhelds like CB, Ham and other two-way communication devices. If they are in a box or a can, they're really not that portable on a day-to-day basis. However, if they are in an insulator, then wrapped in foil, then in a waterproof sleeve to protect the foil from damage, they could easily be kept in an EDC pack.

I’m under the impression that a faraday cage has to be in a grounded container. If so, it ain’t gonna work in EDC.

Of course, there are a lot of varying opinions out there.

Which reminds me to ask some friends who work for the military...
 
i'm actually looking forward to an EMP-just to see all the people running around like headless chickens when they cant use their mobiles or get on Faceboook!!!:p;)
 
Well bigpaul.you should of seen and heard some of my neighbors.when we were without electric for 3 days.lol.
 
Well bigpaul.you should of seen and heard some of my neighbors.when we were without electric for 3 days.lol.
yeah, there was some guy on the news back along when they had a power cut in the south east, asked about it by some reporter he said " its like living in the middle ages", the power had only been off for about 24 hours!!! makes you wonder how they will cope when its off for good? not well probably.
I lived without power for 12 years and loved every minute of it but then I am a Neo Luddite!!!
 
Storing our sensitive items in an old microwave to stop them getting fried might be a good idea-

Microwave-Faraday.jpg
 
Incidentally I've EMP-proofed a spare radio (below) and keep it on a top shelf in my kitchen cupboard so that if an EMP or solar flare blows out other peoples electronics and they're wandering around asking "what happened?" I can use it to pick up news broadcasts (if there still are any) such as "UFO's landing everywhere", "Russian task force invading California", "Moon falling towards earth" etc.

First I wrapped it in a plastic bag, then wrapped it in several layers of tinfoil.
(the bag insulates it from the foil which the EMP/flare will be coursing through)-

emp-radio.jpg
 
I have a couple more basic questions on the need for a faraday cage:
1. Will devices such as my shortwave radio (solid state) that is NOT plugged in still need to be in a faraday cage? Will an EMP actually cause damage to something not running at the time?
2. Will solar panels require some sort of protection against an EMP themselves? Seems if they do that is quite a concern and planning on keeping electricity should the worst happen is useless.
 
Guys your car is also a faraday cage it's built from factory to Handel lightning strikes and its grounded with the rubber tires so for those who can't build them just use your car. Watch this video



But would not the windows allow EMP waves into the car?

That's the reason I don't think my home is a faraday cage -- windows. The entire rest of the home is surrounded by metal backing on the 2" foam panels AND by metal mesh on the entire home to hold the stucco in place. If it wasn't for the windows, I would think my home, too, would be an excellent faraday cage. Am I wrong on that?
 
But would not the windows allow EMP waves into the car?

That's the reason I don't think my home is a faraday cage -- windows. The entire rest of the home is surrounded by metal backing on the 2" foam panels AND by metal mesh on the entire home to hold the stucco in place. If it wasn't for the windows, I would think my home, too, would be an excellent faraday cage. Am I wrong on that?

there's a UTube of a lab test for galvanized Faraday cage - found the undetectable holes around the can handle rivits rendered the can useless ....

if you think a CONEX box or something like a Butler building can be 360 degree enclosed THAT TIGHT - good luck with the results ...

the Russians & Chinese will be using specially designed enhanced EMP nukes to go after the military - trying to knock out Cheyanne Mt and other buried NORAD facilities - likely they'll be exploding heart pacemaker right out people's chests .....
 
But would not the windows allow EMP waves into the car?

That's the reason I don't think my home is a faraday cage -- windows. The entire rest of the home is surrounded by metal backing on the 2" foam panels AND by metal mesh on the entire home to hold the stucco in place. If it wasn't for the windows, I would think my home, too, would be an excellent faraday cage. Am I wrong on that?

It's not. Your correct.
 

Latest posts

Back
Top