I worked in the paging industry in the nineties and we worked in screen rooms to tune the receivers. We needed to have the enclosure grounded to work properly. The other thing we had to contend with is the door and its frame ( same as the lid on the garbage can) the doors are equipped with special flexible metallic gaskets that enables an excellent electrical seal blocking out radio waves. I tested the cage with an HF radio transmitting outside the cage into a small antenna with a receiver on the same frequencies within the cage. We tested from 3 KHz up to 440 MHz and then with commercial equipment from 150 to 1 GHz with no intrusion of any of the signals. We were about five miles from a VHF low television station (ch4)and about a mile from a local high rise building with multiple high power paging transmitters and could not receive their signal inside the cage. Don't bother these cages started from 3K$ and the sky the limit depending on size, screened panels, isolation panels for electrical inputs, lighting options.
Thank you very much for your, informative industry backed information. Nothing against this guy's channel.But even from an educational point of view. His info didn't add up. Further, not all EMPs are created equal. As I understand it, a large high altitude nuclear detonation , would cause a over load. Like a very large lightning strike. Millions of volts of electricity. not frequencies. Thank you again.
If you want help protect your vehicles don't forget about your keys. an emp can distroy the little chip inside, make sure you have a spare and protect it.
I have a hard time believing that modern cars will not fail from a short waved EMP burst. They have so many interdependent components if one fails the whole car stops working.
Solar flares will eventually lead us back to using the very basic combustion engine technology..... Like a 2 stroke motorcross bike as the "new transportation" to get around 👍
I get people wanna save their stuff.. But why save your phone? Who the hell are you gonna call? There probably won't be any working towers for phone.. Let alone internet Get lanterns.... Get food.. Water..etc
It’s 2021, I have a faraday bag that does not allow a cell signal to ring my phone. Bluetooth doesn’t work in either direction even with only a fraction of an inch between two paired devices, one inside and one outside. The same is true of wifi/hotspots. I’m guessing physics has not changed in five years but I’m pretty sure there is something amiss with your cage. Still I appreciate the time and effort to produce this video! Stay safe and healthy!
Put some steel wool around the top of your cans instead of tape that the lid folds the wool over and forms a shield around the top. Now you can open it without destroying the shield like with tape. Also for more protection that is really needed is get a couple sizes bigger can and put the small can inside it.
I did a lot of work on the Mill EMP protected PCs, they were well sealed, and nothing, not even 1 seam was left open, 2 layers of stainless steal in most places, special metal gaskets, lots and lots of screws to insure proper mating of parts. If the relatively week cell signal can get into your can, what do you think the massive amount of energy from an EMP/CME will do? Best bet use the metal duct on every rivet, seam, and opening on the can, use nesting 2-3 layers deep. The foil tape is like $22 for 50 yards, Cheap when I look at 3 radios, 3 high dollar flashlights, 3 GPS units, 3 Red Dots and other electronics. Easy to open a razor knife on a string tied to the lid. Do you need this? Only you can decide but, if your going to do it, do it right.
While I believe the RF spectrum of frequencies can vary....in a properly placed nuclear explosion you could have EMP approaching or exceeding 50,000 volts in the pulse.. It will pass through metal with as little as 2% attenuation. Finding electronic devices inside and frying them. Cell phone demos are miniscule amount of RF energy. The ECM in cars/trucks will also take this 50KV pulse and many...many will be damaged. The ECM regulates fuel flow, spark, timing and many other functions to keep your vehicle running. If your vehicle is out of the pulse damage maximum then your damage may not be critical. My suggestion save your money building ineffective Faraday cages put it towards a bicycle or a horse. Get a Coleman Lantern because there is a good chance all LED flashlights could be toast also. Put money into food/water/supplies to tide you over for.a year or more. Own a gun you may need it for protection as well as food. I have lived long enough to remember living from well water and using an outhouse. We can get by without cell phones and the push button world we live in. Plan a plan and work your plan.
You forgetting something, like he said it's for dampening the effects, so if you are not that close to ground zero , but some reduction may save your devices.
Yes, and while on a " somewhat " related topic, the entire " 5g " used as a directed energy Weapon System, There will be nothing outside of a very deep Underground facility, as far away from the emitting devices as possible, to save a person from its effect. While i understand it is a " debated " topic, the entire concept of a Directed Energy weapon, more devastating and pervasive than an EMP, is a real possibility. And out of all massive, Humanity devastating weapons, with no loss of infrastructure.... Yeah, microwave attacks in the Ghz range is the MOST ideal.
What would have been nice, to us who know nothing much about EMP, is what would be affected without a Faraday Cage, ie: batteries in storage, turned off electronics, etc, and this would only take a minute or two to give a short summary. That would have given us a perspective about the effects of EMP so we can better understand the value of the Faraday Cage.
I placed a rubber trashcan with lid into my galvanized steel can, with wadded paper and Great Stuff foam to keep the rubber trashcan floating within the large steel can. I duct (cloth type, non-metallic) taped all openings on the lid of the rubber trashcan, but did NOT duct tape the edges of the rubber lid when placing it down tightly. I then set my phone inside, ready for normal calling etc. Then I put the rubber lid on tight, laid a towel on top as a spacer to help the metal can lid hold the rubber can lid down tightly, and put the metal lid on tightly. Then i used metal foil 2 inch HVAC duct tape (about $10 a longggg roll at HD or Lowe's) to wrap around the lid of the metal can, to completely close it. I also taped securely over the little holes where the can handles and the lid handle are, to close them on up. My first cell phone test was WITHOUT this metal taping.........and it was a wash........I could hear my phone inside ringing when I called it with my wife's phone. FAIL !!! So I find the metal foil tape, put my phone in, close her up and tape her up as described above. PERFECTO! NO ringing at all. Now the proof in the pudding: After slitting the tape, opening up the Faraday Cage, and retrieving my phone.......I take it and check for recent phone calls and texts, and there are none.........but about 2 1/2 minutes later the phone starts beeping with phone call and text updates coming in. Similar to how you have your phone turned off, turn it on, and soon the signals catch up with you........ only my phone was on the entire time, the signals just could not get to it within the Faraday cage. So next I will be testing it with walkie talkies to check other wave frquencies. The somewhat tedious part is having to retape it every time you open it up..........and the limited space, if you want to do more than just phones, cameras, walkie talkies and a old laptop or two. So I'm anxious to find an old heavy duty storage locker like this guy did in his other video, which he has set up to be able to just open the doors and retrieve tools and electronics, then close the door and be good to go......... With that crazy Rocket Man over there, we should ALL be taking greater measures to protect ourselves. Throw your old laptops into your cages, too.........they just might become the backbone of a new world after all our good gear gets fried in an EMP/Solar event.
I've been gathering emergency kits, not just based on emps or nuclear war etc, when things like the pandemic hit, it's good to be prepared. you just never know what could happen. being complacent in life isn't good and so many of us have gotten that way because we don't want to believe or even think about things going seriously bad. ignorance isn't always bliss. I have just started learning how to make one, started out with just a ziplock bag, one I saved from light strips packaging and it's silver. heard it protects electronics to a certain degree when it's being shipped I guess... but I used copper tape and made sure it was completely covered , it's sealed with it all around and a little bit on the inside of lip of the bag. i did use my phone to test it, both withy regular cell service, Bluetooth and wifi. I had my Bluetooth speaker playing music from my cell and right when I zipped up the bag, it quit. made sure my ringer was cranked up and had my friend call me. from her end I heard it ring a couple times then it went straight to voicemail, my phone didn't ring itself. taking it out for the bag I noticed wifi was gone and LTE was used, but shortly after seeing that the wifi did come back. them I got my notifications of a missed call lol. so my device is still reachable kinda... I have to gain a better understanding about cellular service etc but mostly I did this to see what my google nest mini does along with the smart devices I have integrated to do certain things when I leave the house as I do have presence sensing turned on. be good to add a crank radio that has solar, uses a lithium battery or regular batteries to the cage thing I think. just in case. maybe SD cards loaded with your precious podcasts and other videos, music... a kindle lol. idk. it's all ingesting though and it should be the last thing to do when you are doing prep prep like this but good idea to take the time to learn about it while early prepping for when SHTF
You can stop the signals to the phone if you place a metallic cloth covered foam gasket around the inside of the lid of the can. The problem is that higher frequencies can get through very small gaps between the sides of the can and the lid. You want to do your best to reduce the signal levels by 50 decibels or more across the range of frequencies. Without proper sealing between the can and lid you’re only getting about 15 decibel reduction in the upper frequencies.
I'm in the process of making two emp cans, and your covering the handle brackets prompted me to check on their connection to the lid. I turned the lid upside down and filled it with water. Yep, it leaked! So the top does indeed need more attention!
Stainless steel is a very poor conductor and a proper Faraday cage needs to be made from a highly conductive material. A copper can/mesh will block the cell signal. Your steel can is not able to effectively distribute the electric charge. Essentially, that’s not a Faraday cage, it’s a storage bin.
Is EMP able to do anything to the electrical system in the human or animal body? We are made up of much electricity and water. I am just wondering what effects EMP may have on the human body or brain. Thank you for the video, it is very much good help. How long must you wait to open the faraday cage after an EMP before it's safe?
trying to find out if you could use the inside of a car as a faraday cage? i know it protects against lightning but not sure about EMP... a car is basically a faraday cage as long as the windows are up right? I know the engine compartment is open on the bottom so the car has no chance of running again just curious about say throwing all your electronic devices in the car... like a microwave oven only bigger?
I just put a 4g phone in a biscuit tin and it never even went to answer phone. Also, when I removed the lid there was no signal at all. You sure that's made of metal? If it is you need more ayers! Because I just used a simple biscuit tin and it worked. I read cordless house phones are more powerful so tried that in the same tin and it rang. You need more layers I just watched another experiment where 3 metal containers like the one you use were put over a router 1 after the other whilst the signal was checked each time. It took all 3 till the signal was lowered considerably. But every time one was placed over it the signal dropped.
was it a flip/dumb phone? It was easy to make a Faraday bag for my brand-new dumb phone (won't ring), but using the same material, a smart phone did ring. The antennae for the dumb phones are far, far weaker.
If the can is welded at seams then anything more can add nothing. Furthermore, the aluminum tape has an adhesive backing which may actually insulate, rather than add any conductivity.
Excellent video and presentation 🙂 I've been freaking out over a possible CME and/or EMP... I recently received a "Pacemaker". I've been scratching my head on how to protect it. If it fries, I'm history... I've been instructed, by the Doctors, to avoid contact with "Welding Machines" and other EMF sources, such as High voltage Transmission lines, as they can mess up my device. To add some protective clothing and/or an EMP, EMF and/or CME proof shelter, like a Faraday Cage of some sort. I found a Filtering material, on Amazon, that is described as filtering 95% of most frequencies... I'm planning to make a tent of sorts that I can get into, in the event of a serious CME or EMP, etc. On the funny side, if the material Fails, I don't think I'll be in any condition to get my money back... lol Thanks for sharing this information... I'm going to get that book... Not just for something to read but because I NEED it... 🙂
Consider that the amplitude from an EMP or solar flare is going to be a LOT stronger than radio or cell phone signals. If you're still getting through with those, you might want to quadruple or quintuple your protection.
I have an metal brief case I was thinking of storing my laptop in when i was not using it in case there was an EMP. I tried to call my phone and it of course failed to block it as yours did. But would it stop an EMP or reduce it enough to not damage? For they do shield against EMP's in the military designs. Perhaps they us multiple layers with polarised capacitors as I mention in my previous post to this? These are rhetorical questions. I don't expect you to know the answers. Anyhow I hope some are inspired to come up with better shields. Cheers.
dude i got pissed when i could hear my phone in there. u got the same problem as me, conductive tape the gap where the lid touches the can and ur phone wont work anymore in there.
the guy that wrote the book you quote from has a video about sealing the can with the conductive tape. I believe he said with that, there was an 80db drop in his testing.
So does a faraday cage reduce the radiation from a phone if I put one inside?cuz I live in a small room and I dont want to get so muvh radiation and get my health affected
My Faraday cage doesn’t let phones ring when called. And cars made before ‘84 have a much better chance of running after an emp, the majority of pre 84 vehicles will still need to have things replaced like alternator and cylinoid and possibly battery, but with only 1 in 10,000 vehicles made after 84 even have a slight chance of operating!
Dumb question- if am EMP can damage cell towers, HOW is an undamaged cell phone in the faraday cage going to work AFTER you take the working cell phone and TRY to call someone? Asking for everyone who isn't thinking about the dynamics of EMP or even CME's.
nuclear missles do not fry all comms neither do coronal mass ejections but durring that time who will translate through common and temporal dilects durring the time of comms restoration
Im going to make one for my portable generator out of a cardboard box wrapped with layers of heavy-duty aluminum foil. Some people say you need to put an insulating layer between each layer of foil, others say just use 3 to 5 layers of foil right on top of eachother. Anyone know which is correct??
Install a conducting gasket in your can and stop the rim acting as an antenna. The Dr. whose book you referenced proved that without the conductive gasket and he recommends several different types for ammo cans or garbage cans you lose a significant amount of DB reduction. I have the exact same can you have I used copper tape at the handle to secure that gap and tested it with cell phone and ham radio both with and without the gasket, but the gasket would stop cell phone and ham walkie-talkie communications completely. Your mileage may vary.
The effects of EMP can be increased in nuclear weapons, and those ideas are classified. The higher the yield, the lower the EMP, but there are ways to enhance the EMP effect regardless of yield. Studies were conducted in 1962 during Operation Fishbowl in the pacific, but they didn't understand the full effects then. Much of it remains classified.
trans and comms such as phones will be fried durring shtf it will restart to coding depending on which carriers you use your comm may ring longer or shorter but verbal communication will be impossible
Pretty sure the aluminum tape has non-conductive adhesive, so for this purpose you'd be better off with copper tape, which is used in electric guitar pickups.
great video. I have the same set up as yours however when i tested with cell phone and two way radio it completely blocked it. the only difference i did was I used copper tape around the seams and rim.
If the emp takes out small electronics, won't it take out electric grid, cell towers, etc? Seems foolish to worry about having a phone if towers are down, grid down (transformers made in China) so no power except solar. Regular generators need fuel....that will eventually run out.
Cell phones will certainly not be able to make calls. But, if the EMP does not destroy yours, you may be able to use anything you saved to it. Offline maps, videos, etc.
The anti static bag numbers are probably erroneous. The anti static bag's metal layer is so thin that the metal would likely melt and the plastic bag decay, under the current load and heating induced by a nuclear EMP. All tests we can run to check for shielding are at powers that are 5 to 6 orders of magnitude or more lower than power levels generated by a nuclear EMP.
His book is WRONG. It is mis information to convince the GULLIBLES they are safe. Start with GROUNDING EVERYTHING to Earth. Home plumbing is NOT safe. 6 feet of copper rod is safe.😊
Have a neighbor who thinks his garbage can makes his Ham Radio SAFE. I laugh and walk away. If we get attacked by EMP, it will be so intense, even ungrounded Faraday cages will FAIL to protect contents. In the Military we shield using ALL grounded, with TRIPLE redundancy. Good luck, disregard this utuber who knows only fairy tales !
Purchase a backup computer module for your car model, wrap in in a few layers of foil and keep it under the seat just in case. Also, surges "confuse" memory circuits. Disconnect the negative terminal fro the battery for 15 min, then reconnect. It might start up.
Several of the studies are showing that even if a vehicle quits working after an EMP weapon, for a lot of the newer vehicles, they believe all that would be needed is to disconnect the battery then reconnect it to reset the vehicles sensors and most cars will run. I have been trying to tell people about this for years, but everyone believes that all vehicles will quit working and we will be in the stone-age after an EMP. I use several Faraday cages similar to yours, yet I have mine layered for additional protection at different frequencies. First I use a sealed aluminum foil covered box to store my important electronics in. Then I use a copper mesh material to wrap the aluminum foil box and seal it with copper tape. Then that is heat sealed inside an EMP bag, then the bag is placed in a galvanized can similar to the one you have there and is sealed with aluminum tape. I shouldn't have any problems after an EMP. Personally, I believe that we will be hit with a Super-EMP weapon within the next year which will be blamed on either Iran or North Korea, but I don't think either of them will really have their finger on the trigger. I think that finger will be a lot closer to home than most people want to admit or believe.
WH6FQE - The Kilted Piper how can I call you if your cellphone doesn't ring. Damn dude your mother called last night and was wondering why you don't answer the phone. I'll pass it on to her. :(
that being so, still should go for a box that can totally block your fone. My tin can box can block phone signals as well as radio frequencies up to 107mHz being the highest available FM frequency there is. an EMP has a frequency 15-100mHz while CME 16-40mHz (based on online research). it cannot block my UHF radio as it it operates at a frequency of 400-460mHz. I keep my uhf/vhf transceiver in the tin can, although frequencies over 400 mHz seep in/out, if something detonates much stronger and fries my tech in there I have even bigger problems to deal with, like being dead.
The "bigger problems" are what Preppers prepare for. :) As I said, the author of this book says that you're not trying to block every decibel of every signal, but rather, lessen the strength of the signal so its no longer damaging. That being said, any less signal is better!
See but I had the same problem And I freaking worked N worked for about 4 hours and I got zero service with zero calls zero wifi etc. you can achieve zero . I just did this this weekend. With enough work and idk I took a green coated wire striped it about inch pushed that into the ground then connected the rest inside the bucket and once I did that, that was when I achieved Total zero service and calls. I'm not sure if grounding it helped or not but I did it and when I did I finally got total zero service. Lots of aluminum tape and a bit of foil that's what I used with my metal can and lid.
So you've read some, and know little. You must learn why things will work or not, like old cars. A generator! It'll run, new alt. Style will not work. New with and onboard comp. It'll be shot. So you've got enough information to be very missleading. Not to blame u, just can't broadly interpret what u read as true until you know the Why's.
This guy has demonstrated that it does not work but i put my cell phone in aluminum foil and it did not hear it ringing when i called from other phone, I know for sure if you put the phone in aluminum foil, it will not recieve any call.
its like an antenna booster. its why elevators get cel signals better when inside even if signal is low outside said elevator. like how your jaw bone extends range on car remote
what makes that a Faraday cage. do you know how a Faraday cage works. if it was a Faraday cage it should block radio frequencies. we use to use them to do neurobiology experience on rabbits to block external radio freqs.
It blocks ENOUGH radio waves to stop the electronics from being damaged. If you're running some sort of experiment with sensitive equipment, you may need more blocking than I need to stop an EMP from damaging my electronics.
Is this the only source that you have this book? I'm really scared. I just woke up to this all. Do a video on all kinds of sources for people to learn by, please.
Have you tried calling the phone when youre further out of range? When i cover my wifi router you can still get wifi in the same room but there is less or no signal elsewhere in the house
An EMP will fry any wire over 6 inches in length. With cell phone who you gonna call? Phones don't call direct. They relay through towers that will be fried.
I'm very concerned about an EMP. I have a stainless steel plate and screws in my leg. Can't really find any information as to what my fate would be in the case of an EMP.
I made mine lined it with aluminum foil facing outward and Layers of cardboard and sealed the lid the bottom w duct tape ,but you don't have any foil you don't have anything in the lid you don't have any duct tape. I don't think mine would have worked if it didn't have that.
your idea that the charge well be induced inside from outside the can is bull. Electric charges move on the outside of the conductor only so does the emf , that is why the can needs to be grounded.
If all you have is a couple cell phones to protect, get a new paint can. Place the phones in a cardboard box and then in the paint can. Don't forget the charger too. Place lid on the can and step on the top to seal the can. Dunno why people want to save cell phones as the towers and grid would be destroyed, but no biggie. Best thing is to put boxed rechargeable batteries and charger in the container. Solar panels (disconnected ones) are usually immune to EMP and such so no need to enclose them. Your microwave is USELESS as emp protection. It is not sealed around the door. Fridge is useless too. On that small can with handle - you still need to tape around the lid after the lid is installed. And where the hinges attach to the can (inside and outside if you can). None of the DIY cages will protect squat if you are anywhere near ground zero.
Too many seams, but they do offer some shielding. Not much better or worse than a tarp against rain. You'd be drier but not dry. Items placed in better ( but maybe also not perfect) Faraday cages inside a shipping container, or good metal shed or garage, will fare best in a CMA or EMP event.
Home preparedness is always a good thing, it is better to have it and not need it than to need it and not have it...perfect example something so miniscule like a bandaid, have you ever needed one and couldn't find one?
So basically it is a copper lining and magnet attack, so when two meets it creates a magnetic field that is opposite which rebel other electric fields outside? So, in one part you say it reduces the electricity but not stop. That is one part or you are typing the whole Faraday Cage that reduces the electricity field, so it doesn't stop completely. Or you mean base on metal alone it reduces the electric field, but the other part with inner that is copper like which interact magnet attract which causes opposite magnet field to the opposite so it stops completely? So, magnet field is important to stop electricity as magnet field is a barrier but different barrier that is magnet is magnet field as one barrier to copper as another when two magnet field meets in opposite way it creates a third magnet field barrier as a lining so it stops or reduces electricity field.
Just wondering, I have what is called a mortin building garage....30'× 25' all steal, sheet metal with Cement floor, and insulated. How much deflection could this provide to a car parked inside as well as generators and other SHTF equipment from an EMP.
The floor needs to be metal and grounded to the rest of the building as well the front and the back of the building if it is not metal and the building itself needs to be grounded as well. All seams need to be tight without an crack.
What good is a protected cell phone if after an EMP the cell network is destroyed. I guess you're data is still intact on the phone SIM and memory cards and internal phone memory? Maybe when the cellular network comes back up in a hundred years, you don't have to buy another cell phone. I'm not trolling...just asking.
Cell phones won’t have much use. Unless it’s a smartphone with offline maps and instructions. If GPS satellites work, a modern phone could use them with a map
Could be a bad signal in their location, a nicer cell phone, or many other factors. We’re not trying to block all radio, we’re trying to block damaging radio.
The vehicle tests were done years ago. Modern cars have much more electronics in them than those 80s and 90s era cars/trucks. Do you have any new data?
Good video. I've read you can't rely on taping to help seal it because the glue on the tape (the thickness and length) is also a micro gap. I'd be interested in your opinion about that?
+talshiar50 I'll defer to the book for details on the effectiveness of the tape. But I think it would be just fine. The only thing better could be a waterproof weld of the seal. A weld would be best, but good luck getting it open without poised tools, and without frying he contents! Haha
This video was demonetized by TH-cam. Please remember to directly support channels you love!
This Video was never monetized, because your channel is way to small.
+SEAGAL TUBE lol! I don't know why the flat earthers are getting so much press these days! Funny guys!!
+D Chan they claim these sorts of videos aren't advertiser friendly... how about advertising food storage? Haha
If it's not ad friendly, why did I just have to watch an ad?
+LadyFyre I was able to eventually dispute it. I expect to lost it again. Thanks for the question!
I worked in the paging industry in the nineties and we worked in screen rooms to tune the receivers. We needed to have the enclosure grounded to work properly. The other thing we had to contend with is the door and its frame ( same as the lid on the garbage can) the doors are equipped with special flexible metallic gaskets that enables an excellent electrical seal blocking out radio waves. I tested the cage with an HF radio transmitting outside the cage into a small antenna with a receiver on the same frequencies within the cage. We tested from 3 KHz up to 440 MHz and then with commercial equipment from 150 to 1 GHz with no intrusion of any of the signals. We were about five miles from a VHF low television station (ch4)and about a mile from a local high rise building with multiple high power paging transmitters and could not receive their signal inside the cage. Don't bother these cages started from 3K$ and the sky the limit depending on size, screened panels, isolation panels for electrical inputs, lighting options.
Thx
Wow! Awesome contextual info. Cheers
Thank you very much for your, informative industry backed information. Nothing against this guy's channel.But even from an educational point of view. His info didn't add up. Further, not all EMPs are created equal. As I understand it, a large high altitude nuclear detonation , would cause a over load. Like a very large lightning strike. Millions of volts of electricity. not frequencies. Thank you again.
@@tonymontalban5603 One can read a book and still not understand it. He was using terms, I bet, he could not explain to someone else correctly.
I was just going to comment that Faraday cages must be grounded, it's not optional. Then I saw your more knowledgeable comment. Thank You!
If you want help protect your vehicles don't forget about your keys. an emp can distroy the little chip inside, make sure you have a spare and protect it.
I have a hard time believing that modern cars will not fail from a short waved EMP burst. They have so many interdependent components if one fails the whole car stops working.
Ik right if you pee on one wrong it needs a reflash at the dealer
It'll crank back up.
Solar flares will eventually lead us back to using the very basic combustion engine technology..... Like a 2 stroke motorcross bike as the "new transportation" to get around 👍
If the leaders of the world don’t recognize that they are gonna ruin the world then we all gonna be screwed and none of that will matter
All modern cars use high energy ignition systems. The electronics in the car must be protected from the EMP generated during each spark.
I get people wanna save their stuff.. But why save your phone? Who the hell are you gonna call? There probably won't be any working towers for phone.. Let alone internet
Get lanterns.... Get food.. Water..etc
Photos, but you could also save them on a hard drive. Then again, would be nice to actually be able to look at them on a screen
SD Cards slots filled with tons of audio, video, and ebooks regarding education & survival information.
It’s 2021, I have a faraday bag that does not allow a cell signal to ring my phone. Bluetooth doesn’t work in either direction even with only a fraction of an inch between two paired devices, one inside and one outside. The same is true of wifi/hotspots.
I’m guessing physics has not changed in five years but I’m pretty sure there is something amiss with your cage.
Still I appreciate the time and effort to produce this video!
Stay safe and healthy!
Put some steel wool around the top of your cans instead of tape that the lid folds the wool over and forms a shield around the top. Now you can open it without destroying the shield like with tape. Also for more protection that is really needed is get a couple sizes bigger can and put the small can inside it.
I did a lot of work on the Mill EMP protected PCs, they were well sealed, and nothing, not even 1 seam was left open, 2 layers of stainless steal in most places, special metal gaskets, lots and lots of screws to insure proper mating of parts. If the relatively week cell signal can get into your can, what do you think the massive amount of energy from an EMP/CME will do?
Best bet use the metal duct on every rivet, seam, and opening on the can, use nesting 2-3 layers deep. The foil tape is like $22 for 50 yards, Cheap when I look at 3 radios, 3 high dollar flashlights, 3 GPS units, 3 Red Dots and other electronics. Easy to open a razor knife on a string tied to the lid.
Do you need this? Only you can decide but, if your going to do it, do it right.
While I believe the RF spectrum of frequencies can vary....in a properly placed nuclear explosion you could have EMP approaching or exceeding 50,000 volts in the pulse.. It will pass through metal with as little as 2% attenuation. Finding electronic devices inside and frying them. Cell phone demos are miniscule amount of RF energy. The ECM in cars/trucks will also take this 50KV pulse and many...many will be damaged. The ECM regulates fuel flow, spark, timing and many other functions to keep your vehicle running. If your vehicle is out of the pulse damage maximum then your damage may not be critical. My suggestion save your money building ineffective Faraday cages put it towards a bicycle or a horse. Get a Coleman Lantern because there is a good chance all LED flashlights could be toast also. Put money into food/water/supplies to tide you over for.a year or more. Own a gun you may need it for protection as well as food. I have lived long enough to remember living from well water and using an outhouse. We can get by without cell phones and the push button world we live in. Plan a plan and work your plan.
Will cell phone towers be fried? And if so, forget internet and a network to connect to with your laptops and cell phones.
Jay_J Jacobsen no they won't. Thats because they are over 100 feet in the air. If you believe that I can sell you on anything.
I'm thinking phones would be great to keep for media, music or movies etc, but flashlights are great. I'm gonna buy some lanterns though, great idea.
You forgetting something, like he said it's for dampening the effects, so if you are not that close to ground zero , but some reduction may save your devices.
Yes, and while on a " somewhat " related topic, the entire " 5g " used as a directed energy Weapon System, There will be nothing outside of a very deep Underground facility, as far away from the emitting devices as possible, to save a person from its effect. While i understand it is a " debated " topic, the entire concept of a Directed Energy weapon, more devastating and pervasive than an EMP, is a real possibility. And out of all massive, Humanity devastating weapons, with no loss of infrastructure.... Yeah, microwave attacks in the Ghz range is the MOST ideal.
If there a blast that kills cars and phone and electricity you probably aren’t going to be A live
What would have been nice, to us who know nothing much about EMP, is what would be affected without a Faraday Cage, ie: batteries in storage, turned off electronics, etc, and this would only take a minute or two to give a short summary. That would have given us a perspective about the effects of EMP so we can better understand the value of the Faraday Cage.
I believe the rule of thumb is, “anything with a chip.”
I see you did this 7 years ago, things are way different now. I think everyone should have a faraday cage now!
I placed a rubber trashcan with lid into my galvanized steel can, with wadded paper and Great Stuff foam to keep the rubber trashcan floating within the large steel can. I duct (cloth type, non-metallic) taped all openings on the lid of the rubber trashcan, but did NOT duct tape the edges of the rubber lid when placing it down tightly. I then set my phone inside, ready for normal calling etc. Then I put the rubber lid on tight, laid a towel on top as a spacer to help the metal can lid hold the rubber can lid down tightly, and put the metal lid on tightly. Then i used metal foil 2 inch HVAC duct tape (about $10 a longggg roll at HD or Lowe's) to wrap around the lid of the metal can, to completely close it. I also taped securely over the little holes where the can handles and the lid handle are, to close them on up.
My first cell phone test was WITHOUT this metal taping.........and it was a wash........I could hear my phone inside ringing when I called it with my wife's phone. FAIL !!!
So I find the metal foil tape, put my phone in, close her up and tape her up as described above. PERFECTO! NO ringing at all.
Now the proof in the pudding: After slitting the tape, opening up the Faraday Cage, and retrieving my phone.......I take it and check for recent phone calls and texts, and there are none.........but about 2 1/2 minutes later the phone starts beeping with phone call and text updates coming in. Similar to how you have your phone turned off, turn it on, and soon the signals catch up with you........ only my phone was on the entire time, the signals just could not get to it within the Faraday cage.
So next I will be testing it with walkie talkies to check other wave frquencies.
The somewhat tedious part is having to retape it every time you open it up..........and the limited space, if you want to do more than just phones, cameras, walkie talkies and a old laptop or two.
So I'm anxious to find an old heavy duty storage locker like this guy did in his other video, which he has set up to be able to just open the doors and retrieve tools and electronics, then close the door and be good to go.........
With that crazy Rocket Man over there, we should ALL be taking greater measures to protect ourselves.
Throw your old laptops into your cages, too.........they just might become the backbone of a new world after all our good gear gets fried in an EMP/Solar event.
I've been gathering emergency kits, not just based on emps or nuclear war etc, when things like the pandemic hit, it's good to be prepared. you just never know what could happen. being complacent in life isn't good and so many of us have gotten that way because we don't want to believe or even think about things going seriously bad. ignorance isn't always bliss.
I have just started learning how to make one, started out with just a ziplock bag, one I saved from light strips packaging and it's silver. heard it protects electronics to a certain degree when it's being shipped I guess... but I used copper tape and made sure it was completely covered , it's sealed with it all around and a little bit on the inside of lip of the bag. i did use my phone to test it, both withy regular cell service, Bluetooth and wifi. I had my Bluetooth speaker playing music from my cell and right when I zipped up the bag, it quit. made sure my ringer was cranked up and had my friend call me. from her end I heard it ring a couple times then it went straight to voicemail, my phone didn't ring itself. taking it out for the bag I noticed wifi was gone and LTE was used, but shortly after seeing that the wifi did come back. them I got my notifications of a missed call lol. so my device is still reachable kinda... I have to gain a better understanding about cellular service etc but mostly I did this to see what my google nest mini does along with the smart devices I have integrated to do certain things when I leave the house as I do have presence sensing turned on.
be good to add a crank radio that has solar, uses a lithium battery or regular batteries to the cage thing I think. just in case. maybe SD cards loaded with your precious podcasts and other videos, music... a kindle lol. idk. it's all ingesting though and it should be the last thing to do when you are doing prep prep like this but good idea to take the time to learn about it while early prepping for when SHTF
You can stop the signals to the phone if you place a metallic cloth covered foam gasket around the inside of the lid of the can. The problem is that higher frequencies can get through very small gaps between the sides of the can and the lid. You want to do your best to reduce the signal levels by 50 decibels or more across the range of frequencies. Without proper sealing between the can and lid you’re only getting about 15 decibel reduction in the upper frequencies.
I'm in the process of making two emp cans, and your covering the handle brackets prompted me to check on their connection to the lid. I turned the lid upside down and filled it with water. Yep, it leaked! So the top does indeed need more attention!
6 years later and we're still here. But I'm still making one.
Stainless steel is a very poor conductor and a proper Faraday cage needs to be made from a highly conductive material. A copper can/mesh will block the cell signal. Your steel can is not able to effectively distribute the electric charge. Essentially, that’s not a Faraday cage, it’s a storage bin.
Is EMP able to do anything to the electrical system in the human or animal body? We are made up of much electricity and water. I am just wondering what effects EMP may have on the human body or brain. Thank you for the video, it is very much good help. How long must you wait to open the faraday cage after an EMP before it's safe?
trying to find out if you could use the inside of a car as a faraday cage? i know it protects against lightning but not sure about EMP... a car is basically a faraday cage as long as the windows are up right? I know the engine compartment is open on the bottom so the car has no chance of running again just curious about say throwing all your electronic devices in the car... like a microwave oven only bigger?
You touched the can while the call was made, and a human body emplifies wave signal by a factor of 10, that's why it worked.
Posted seven years ago. I'm sure electric cars would be toast.
I like when he said 'a.. CORONAL MASS EJECTION from The SUN'
I just put a 4g phone in a biscuit tin and it never even went to answer phone. Also, when I removed the lid there was no signal at all. You sure that's made of metal? If it is you need more ayers! Because I just used a simple biscuit tin and it worked.
I read cordless house phones are more powerful so tried that in the same tin and it rang. You need more layers I just watched another experiment where 3 metal containers like the one you use were put over a router 1 after the other whilst the signal was checked each time. It took all 3 till the signal was lowered considerably. But every time one was placed over it the signal dropped.
was it a flip/dumb phone? It was easy to make a Faraday bag for my brand-new dumb phone (won't ring), but using the same material, a smart phone did ring. The antennae for the dumb phones are far, far weaker.
The Faraday Cage blocks electrostatic fields, not the electromagnetic fields from de cellphone
If the can is welded at seams then anything more can add nothing. Furthermore, the aluminum tape has an adhesive backing which may actually insulate, rather than add any conductivity.
Wrap it in a double foil it it dosen't ring, it goes to voice mail
Excellent video and presentation 🙂 I've been freaking out over a possible CME and/or EMP... I recently received a "Pacemaker". I've been scratching my head on how to protect it. If it fries, I'm history... I've been instructed, by the Doctors, to avoid contact with "Welding Machines" and other EMF sources, such as High voltage Transmission lines, as they can mess up my device. To add some protective clothing and/or an EMP, EMF and/or CME proof shelter, like a Faraday Cage of some sort. I found a Filtering material, on Amazon, that is described as filtering 95% of most frequencies... I'm planning to make a tent of sorts that I can get into, in the event of a serious CME or EMP, etc. On the funny side, if the material Fails, I don't think I'll be in any condition to get my money back... lol Thanks for sharing this information... I'm going to get that book... Not just for something to read but because I NEED it... 🙂
Consider that the amplitude from an EMP or solar flare is going to be a LOT stronger than radio or cell phone signals. If you're still getting through with those, you might want to quadruple or quintuple your protection.
I have an metal brief case I was thinking of storing my laptop in when i was not using it in case there was an EMP. I tried to call my phone and it of course failed to block it as yours did. But would it stop an EMP or reduce it enough to not damage? For they do shield against EMP's in the military designs. Perhaps they us multiple layers with polarised capacitors as I mention in my previous post to this? These are rhetorical questions. I don't expect you to know the answers. Anyhow I hope some are inspired to come up with better shields. Cheers.
dude i got pissed when i could hear my phone in there. u got the same problem as me, conductive tape the gap where the lid touches the can and ur phone wont work anymore in there.
Great idea. The author of the book didn't say that was necessary, but it will certainly help.
the guy that wrote the book you quote from has a video about sealing the can with the conductive tape. I believe he said with that, there was an 80db drop in his testing.
+Digitalmanne good point. I have a larger faraday cage that I seal. It's nice to have a secondary cage for commonly used items.
Not if it doesn't work. It might soothe your little feelings, but it's useless if it doesn't work.
Use an ammo can. Tear out the rubber seal and use the tape.
Yeah people always go to extremes about things. But the truth is always in the details and nuances.
thank you for mentioning the big grounding myth, I have seen countless channels recommend extremely stupid and useless grounding methods
So does a faraday cage reduce the radiation from a phone if I put one inside?cuz I live in a small room and I dont want to get so muvh radiation and get my health affected
This has been studied extensively. Mobile phone radiation has no effect on your health. So don't worry about it.
My Faraday cage doesn’t let phones ring when called. And cars made before ‘84 have a much better chance of running after an emp, the majority of pre 84 vehicles will still need to have things replaced like alternator and cylinoid and possibly battery, but with only 1 in 10,000 vehicles made after 84 even have a slight chance of operating!
There is also this as an E-book for free or pirateproxy: Handbook to Practical Disaster Preparednes - Dr. Arthur Bradley
There is always a download somewhere, but I prefer to support the creator (since I am one now :P)
Dumb question- if am EMP can damage cell towers, HOW is an undamaged cell phone in the faraday cage going to work AFTER you take the working cell phone and TRY to call someone? Asking for everyone who isn't thinking about the dynamics of EMP or even CME's.
A cell phone without cell towers is useless. But, a smart phone loaded with maps/pdfs/etc can still be useful.
Have they done protection on the signal towers for cell service. If not, having a working cell phone wont do any good it the towers are out.
Can I use an old metal tin lunch box? Or those big metal cookies tin? TIA
It would work about as well as a trash can!
An Aluminum container will knock your signal down completely.
nuclear missles do not fry all comms neither do coronal mass ejections but durring that time who will translate through common and temporal dilects durring the time of comms restoration
Im going to make one for my portable generator out of a cardboard box wrapped with layers of heavy-duty aluminum foil. Some people say you need to put an insulating layer between each layer of foil, others say just use 3 to 5 layers of foil right on top of eachother. Anyone know which is correct??
Wise info, thanks 🙏👍
Install a conducting gasket in your can and stop the rim acting as an antenna. The Dr. whose book you referenced proved that without the conductive gasket and he recommends several different types for ammo cans or garbage cans you lose a significant amount of DB reduction. I have the exact same can you have I used copper tape at the handle to secure that gap and tested it with cell phone and ham radio both with and without the gasket, but the gasket would stop cell phone and ham walkie-talkie communications completely. Your mileage may vary.
Should my truck not being used have a ground hooked to the metal frame. Interesting video Thanks
And all antique vehicles won’t be affected !
Ion like the way that book used the term 'anomaly' regarding what would happen from nuclear fall out
The effects of EMP can be increased in nuclear weapons, and those ideas are classified. The higher the yield, the lower the EMP, but there are ways to enhance the EMP effect regardless of yield. Studies were conducted in 1962 during Operation Fishbowl in the pacific, but they didn't understand the full effects then. Much of it remains classified.
That was when they knocked Hawaii and parts of Australia out.
trans and comms such as phones will be fried durring shtf it will restart to coding depending on which carriers you use your comm may ring longer or shorter but verbal communication will be impossible
Pretty sure the aluminum tape has non-conductive adhesive, so for this purpose you'd be better off with copper tape, which is used in electric guitar pickups.
great video. I have the same set up as yours however when i tested with cell phone and two way radio it completely blocked it. the only difference i did was I used copper tape around the seams and rim.
If the emp takes out small electronics, won't it take out electric grid, cell towers, etc? Seems foolish to worry about having a phone if towers are down, grid down (transformers made in China) so no power except solar. Regular generators need fuel....that will eventually run out.
Cell phones will certainly not be able to make calls. But, if the EMP does not destroy yours, you may be able to use anything you saved to it. Offline maps, videos, etc.
The anti static bag numbers are probably erroneous. The anti static bag's metal layer is so thin that the metal would likely melt and the plastic bag decay, under the current load and heating induced by a nuclear EMP. All tests we can run to check for shielding are at powers that are 5 to 6 orders of magnitude or more lower than power levels generated by a nuclear EMP.
That trash can is NOT a Faraday cage. Partial shielding only. The lid’s not making a good connection.
His book is WRONG. It is mis information to convince the GULLIBLES they are safe.
Start with GROUNDING EVERYTHING to Earth. Home plumbing is NOT safe. 6 feet of copper rod is safe.😊
Have a neighbor who thinks his garbage can makes his Ham Radio SAFE. I laugh and walk away.
If we get attacked by EMP, it will be so intense, even ungrounded Faraday cages will FAIL to protect contents. In the Military we shield using ALL grounded, with TRIPLE redundancy. Good luck, disregard this utuber who knows only fairy tales !
YEAH MATE 5 RINGS MEANS I NEED THE WRENCH NOW YES MATE THAT SIZE
Purchase a backup computer module for your car model, wrap in in a few layers of foil and keep it under the seat just in case. Also, surges "confuse" memory circuits. Disconnect the negative terminal fro the battery for 15 min, then reconnect. It might start up.
Several of the studies are showing that even if a vehicle quits working after an EMP weapon, for a lot of the newer vehicles, they believe all that would be needed is to disconnect the battery then reconnect it to reset the vehicles sensors and most cars will run. I have been trying to tell people about this for years, but everyone believes that all vehicles will quit working and we will be in the stone-age after an EMP.
I use several Faraday cages similar to yours, yet I have mine layered for additional protection at different frequencies. First I use a sealed aluminum foil covered box to store my important electronics in. Then I use a copper mesh material to wrap the aluminum foil box and seal it with copper tape. Then that is heat sealed inside an EMP bag, then the bag is placed in a galvanized can similar to the one you have there and is sealed with aluminum tape. I shouldn't have any problems after an EMP.
Personally, I believe that we will be hit with a Super-EMP weapon within the next year which will be blamed on either Iran or North Korea, but I don't think either of them will really have their finger on the trigger. I think that finger will be a lot closer to home than most people want to admit or believe.
The Clown In America are not to be trusted
WH6FQE - The Kilted Piper how can I call you if your cellphone doesn't ring. Damn dude your mother called last night and was wondering why you don't answer the phone. I'll pass it on to her. :(
Agreed. DE KG7STF
that being so, still should go for a box that can totally block your fone. My tin can box can block phone signals as well as radio frequencies up to 107mHz being the highest available FM frequency there is. an EMP has a frequency 15-100mHz while CME 16-40mHz (based on online research). it cannot block my UHF radio as it it operates at a frequency of 400-460mHz. I keep my uhf/vhf transceiver in the tin can, although frequencies over 400 mHz seep in/out, if something detonates much stronger and fries my tech in there I have even bigger problems to deal with, like being dead.
The "bigger problems" are what Preppers prepare for. :) As I said, the author of this book says that you're not trying to block every decibel of every signal, but rather, lessen the strength of the signal so its no longer damaging. That being said, any less signal is better!
See but I had the same problem And I freaking worked N worked for about 4 hours and I got zero service with zero calls zero wifi etc. you can achieve zero . I just did this this weekend. With enough work and idk I took a green coated wire striped it about inch pushed that into the ground then connected the rest inside the bucket and once I did that, that was when I achieved Total zero service and calls. I'm not sure if grounding it helped or not but I did it and when I did I finally got total zero service. Lots of aluminum tape and a bit of foil that's what I used with my metal can and lid.
it will send and receive calls or messages like one call means move two calls means stay
So you've read some, and know little. You must learn why things will work or not, like old cars. A generator! It'll run, new alt. Style will not work. New with and onboard comp. It'll be shot. So you've got enough information to be very missleading. Not to blame u, just can't broadly interpret what u read as true until you know the Why's.
With all these explanation still a lot of people won't understand that because lot ofpeople don't know about electronics.
vehicles with non electronic ignition may only have condensor blown in distributor so keep spares in faraday cage
Thank you so much for explaining
Another misconception. That Al tape is completely unnecessary, unless you're trying to make it water proof..
This guy has demonstrated that it does not work but i put my cell phone in aluminum foil and it did not hear it ringing when i called from other phone, I know for sure if you put the phone in aluminum foil, it will not recieve any call.
Kailash sharma He's not dead accurate about this stuff. Correct you are sir.
its like an antenna booster. its why elevators get cel signals better when inside even if signal is low outside said elevator. like how your jaw bone extends range on car remote
what makes that a Faraday cage. do you know how a Faraday cage works. if it was a Faraday cage it should block radio frequencies. we use to use them to do neurobiology experience on rabbits to block external radio freqs.
It blocks ENOUGH radio waves to stop the electronics from being damaged. If you're running some sort of experiment with sensitive equipment, you may need more blocking than I need to stop an EMP from damaging my electronics.
Is this the only source that you have this book? I'm really scared. I just woke up to this all. Do a video on all kinds of sources for people to learn by, please.
I've gotten simple faraday fabric off amazon that totally blocks cell signals..... Careful, though, my aunt got some that wasn't quite as good.
En México creo que puede funcionar el Bote de los Tamales.
🤦♂️🤦♂️🤦♂️😂😂😂😂
Have you tried calling the phone when youre further out of range? When i cover my wifi router you can still get wifi in the same room but there is less or no signal elsewhere in the house
Is this the reason I can't find a Faraday phone pouch that blocks cellphone calls?
An EMP will fry any wire over 6 inches in length. With cell phone who you gonna call? Phones don't call direct. They relay through towers that will be fried.
I'm very concerned about an EMP. I have a stainless steel plate and screws in my leg. Can't really find any information as to what my fate would be in the case of an EMP.
I would guess it would be possible for them to get hot. That is a scary thing I have never thought!
I would guess that I could be electrocuted.
I made mine lined it with aluminum foil facing outward and Layers of cardboard and sealed the lid the bottom w duct tape ,but you don't have any foil you don't have anything in the lid you don't have any duct tape. I don't think mine would have worked if it didn't have that.
Thanks! If the cell phone rings in the garbage can, the the it doesn't block RFID nor can one expect the sleeves they sell to do it either.
I tape the seal around the lid with aluminum foil tape and the rivets around the handles and my cell phone gets zero signal.
your idea that the charge well be induced inside from outside the can is bull. Electric charges move on the
outside of the conductor only so does the emf , that is why the can needs to be grounded.
If all you have is a couple cell phones to protect, get a new paint can. Place the phones in a cardboard box and then in the paint can. Don't forget the charger too.
Place lid on the can and step on the top to seal the can.
Dunno why people want to save cell phones as the towers and grid would be destroyed, but no biggie.
Best thing is to put boxed rechargeable batteries and charger in the container.
Solar panels (disconnected ones) are usually immune to EMP and such so no need to enclose them.
Your microwave is USELESS as emp protection. It is not sealed around the door. Fridge is useless too.
On that small can with handle - you still need to tape around the lid after the lid is installed.
And where the hinges attach to the can (inside and outside if you can).
None of the DIY cages will protect squat if you are anywhere near ground zero.
It attenuates the rf, that’s why you still need a filter to protect the circuits
I heard wrap electronics in aluminum foil then put them in the cage..is that correct?
Would a galvanized steel truck bed tool box work for a faraday cage? My husband has one from a truck we once had.
+Mary Cleveland as long as its very well sealed and has no holes. If you don't plan on opening it often, use some metal duct tape to seal any seams
So what are your thoughts on these shipping containers as gaint Faraday cages? Thanks
As long as its solid metal (or sealed well) all the way around, I suppose it should work just as well as this bucket.
Too many seams, but they do offer some shielding. Not much better or worse than a tarp against rain. You'd be drier but not dry.
Items placed in better ( but maybe also not perfect) Faraday cages inside a shipping container, or good metal shed or garage, will fare best in a CMA or EMP event.
Do same test with unplugged microwave oven
Good information! Just subbed but I see your last video was 4 months ago. Hope to see you continue.
Home preparedness is always a good thing, it is better to have it and not need it than to need it and not have it...perfect example something so miniscule like a bandaid, have you ever needed one and couldn't find one?
So basically it is a copper lining and magnet attack, so when two meets it creates a magnetic field that is opposite which rebel other electric fields outside? So, in one part you say it reduces the electricity but not stop. That is one part or you are typing the whole Faraday Cage that reduces the electricity field, so it doesn't stop completely. Or you mean base on metal alone it reduces the electric field, but the other part with inner that is copper like which interact magnet attract which causes opposite magnet field to the opposite so it stops completely? So, magnet field is important to stop electricity as magnet field is a barrier but different barrier that is magnet is magnet field as one barrier to copper as another when two magnet field meets in opposite way it creates a third magnet field barrier as a lining so it stops or reduces electricity field.
I used an app to check my work and it blocked wifi and blth but cell failed.
You have to seal the seals with aluminum tape and put aluminum foil under the lid.
Just wondering,
I have what is called a mortin building garage....30'× 25' all steal, sheet metal with Cement floor, and insulated. How much deflection could this provide to a car parked inside as well as generators and other SHTF equipment from an EMP.
The floor needs to be metal and grounded to the rest of the building as well the front and the back of the building if it is not metal and the building itself needs to be grounded as well.
All seams need to be tight without an crack.
What good is a protected cell phone if after an EMP the cell network is
destroyed. I guess you're data is still intact on the phone SIM and
memory cards and internal phone memory? Maybe when the cellular network
comes back up in a hundred years, you don't have to buy another cell
phone. I'm not trolling...just asking.
Cell phones won’t have much use. Unless it’s a smartphone with offline maps and instructions. If GPS satellites work, a modern phone could use them with a map
If it's not supposed to completely block the cell phone signal, then why do so many people have this happen with their faraday cages?
Could be a bad signal in their location, a nicer cell phone, or many other factors. We’re not trying to block all radio, we’re trying to block damaging radio.
@@lrnselfreliance thanks for the quick reply!
2024 and things seem much more likely that something like that will happen
So your saying some books say its all toast and some books say some lightly toasted. Either way.... we dont know..for sure..
The vehicle tests were done years ago. Modern cars have much more electronics in them than those 80s and 90s era cars/trucks. Do you have any new data?
Attenuation is the technical principle.
After the EMP you remove all your gear to talk to others who experienced it when another EMP occurs???
That, and have the ability to turn on a flashlight. Or, radio to people miles away while everyone else has to walk.
Good video. I've read you can't rely on taping to help seal it because the glue on the tape (the thickness and length) is also a micro gap. I'd be interested in your opinion about that?
+talshiar50 I'll defer to the book for details on the effectiveness of the tape. But I think it would be just fine. The only thing better could be a waterproof weld of the seal. A weld would be best, but good luck getting it open without poised tools, and without frying he contents! Haha
D Chan you are right. Better to do things half ass then try and do them the correct way.....
I line the cans with contractors trash bags after the cardboard is in.