The following quotes are from a paper by Napier and Asher published in Astronomy & Geophysics.
We know that about one bright comet (of absolute magnitude as bright as 7, comparable to Halley’s Comet) arrives in the visibility zone (perihelion q<5AU, say) each year from the Oort cloud. Most designs that can be found online for a Faraday Cage are for something the size of a shoebox or similar. An episode of Doomsday Preppers features Tim Ralston (the guy who shot his thumb off) who is using shipping containers to build a bunker (I hope he reinforces them!), partly as protection from an EMP attack. I would HIGHLY Recommend you also install some Ground Rods that will attach to the four corners of the shipping container into a confirmed earth grounding system. That will pass the EMP to the path of least resistance and eliminate any stray fields that may be present.
I had two 6 foot copper grounding rods left over from a construction job, I beat them into the ground with a sledge hammer and attached them to the shipping container with #2 copper wire. However you have to isolate the car (and any other contents) from the metal of the shipping container.
All metal houses (shipping container houses) have to be grounded by code with at least (minimum) 2 copper ground spikes, each are at least (minimum) 8 foot long and have to be grounded using heavy gauge wire. For a Faraday cage to work it has to completely surround the contained objects, sides, top and bottom. Even a thin aluminum skin say aluminum siding with metal screen over the windows will act like a Faraday cage as long is the whole thing is connected and grounded. You would have to do a better job of grounding the doors than just the hinges and also I would use 8 to 12 foot grounding rods to make sure it is properly grounded, but yes in theory these dudes would make a big Faraday Cage. Instead of working on sealing up doors, maybe create a mesh wall just inside the door like those old hippie bead doors. If you are really worried then I would put whatever electronic equipment in a steel trash can within the container. We use shipping containers exclusively in the ROV industry; we convert them to control vans for the vehicles. I worked in a pulsed power lab for a while, and the most common thing we did for shielding was a combination of impedance matched instrument cable (teeeeeensy tiny coaxial cable) and either zinc or nickel spray paint inside our enclosures. Note: Wrapping the cell phone in the foil, but WITHOUT placing on top of the cardboard box inside the cage, does NOT prevent the cell phone from ringing. Robert, a steel shipping container would be a very solid EMI shielding solution although a ground is not necessary. Lastly, you mention expense being a huge factor because none exist for the consumer market.


An electromagnetic pulse (EMP) is a short burst of energy caused by either solar flares or a nuclear blast. Because of this ability, EMP weapons have been created with the aim to destroy the enemy’s technological capabilities.
This fear has caused many preppers to invest in a Faraday Cage, giving them the means to protect their most valuable technology-based survival equipment. A Faraday Cage, simply put, is a metal container with a lining on the inside that does not conduct electricity. In order for it to protect any electronics you place in it, the inside of the metal container must be lined with a protective cover so that your electronics cannot touch any metal. Just remember that the larger the metal container, the more protective lining you will have to invest in for your Faraday Cage to work.
Let’s say you decide on making one out of a metal trash can since they are easy to find and relatively cheap while still being able to hold a fair amount of contents.
We’ve established that you are opting for a metal trash can (for the purpose of this article). Now that you have your container, you must line the inside of it with enough cardboard so that no contents will be able to touch any metal.
Any electronics you consider vital in case of an emergency should go inside your soon-to-be Faraday Cage. If you want to take extra precautions, you can opt to wrap your gathered electronic in heavy gauge aluminum foil.
Your standard 31-gallon metal trash can will be able to keep a lot of electronics safe and is a favorite container among many preppers. EMPs are a threat to modern society and many preppers base their entire bug out plans on the event of an EMP striking their city or even the majority of the United States. This simple project can be finished in under 30 minutes and will help insure that your valuable electronics will be safe from being fried by an EMP blast, which would happen without warning. By clicking Confirm bid, you commit to buy this item from the seller if you are the winning bidder. By clicking Confirm bid, you are committing to buy this item from the seller if you are the winning bidder and have read and agree to the Global Shipping Program terms and conditions - opens in a new window or tab. By clicking 1 Click Bid, you commit to buy this item from the seller if you're the winning bidder.
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It seems to be securely established that ~1–2% of these are captured into Halleytype (HT) orbits.
A simple description is a tightly-closed metal box (like an ammo tin), covered in tin foil, grounded, with some form of simple insulation on the inside (like cardboard).
Still, what about one just sitting on the ground – would that be a cheap, effective means to having a Faraday Cage big enough to park a vehicle in? This is in case of an electrical short in the wall against the metal structure and to off set the potential lightening strike. And yes, they provide a measure of shielding; cell phones, radios, and hand held VHF radios do not function inside without an external antenna. Then close the cage up and call your cell phone.  If you can hear your cell phone ring, the your cage (or at least the item) is NOT EMP resistant.
The positive and negative charges are re-distributed on opposite sides of the container thus nulling out internal fields, in fact, testing has shown that grounding a faraday cage can actually disrupt this re-distribution.
Import charges previously quoted are subject to change if you increase you maximum bid amount. We have taken the time to test out much of our equipment and offer only what we consider the best equipment for ghost hunting. The dynamical lifetime of a body in such an orbit can be estimated, from which the expected number of HT comets is perhaps ~3000. Put anything electronic inside it and it will survive an EMP – because the cage will receive the energy and dissipate it via the grounding.
If you reside in an EU member state besides UK, import VAT on this purchase is not recoverable. The Faraday Pouch is big enough to hold your SB7 or RT-EVP and speaker.This accessory is perfect for the serious Spirit Box user because it will allow you to experiment by attenuating and "tweaking" the radio frequency reception during their sessions. I was a bit leery  as to this fabric cutting out the signals from the radio stations in our area, several are strong and loud, To my surprise I had nothing but white noise !!! The 'Our Picks' section features a handful of ghost hunting equipment we use on every investigation.




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Rubric: Electromagnetic Pulse Shield



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