No, that's not a good way to test it. A mobile device is low powered and operates on a narrow frequency range. Neither of which apply to an EMP. If the door is facing away from a tower, it might not connect, but that doesn't mean it can't, only that it didn't.A good way to test it is to put a mobile device in the microwave and try to call it or send it data.
That's a pretty weak theory to base something as important as a Faraday cage on. Microwaves are high frequency focused in a narrow band. The door mesh is designed to block that frequency, but it doesn't filter everything else out. If the door was solid metal, it might have more of a chance. But the mesh is a disqualifier.The theory is, if it keeps the micro wave radiation in when in use, it should keep whatever is inside safe from EMP radiation on the outside.
My guess is, no. The waves used for cooking are fairly large and low powered, which is why a sheet of mesh and plastic in the door is all it takes to stop them from cooking you while you stand there waiting for your bowl of soup to warm up.I was asked by a friend......can microwaves be used as Farraday cages? I have no idea. Somebody had dead microwaves mounted to use as such. Gurus? Yes? No? Maybe? Thanks.
True... An EMP will vary in strength and diminish with range, and putting anything between your device(s) and the EMP will further weaken it.The short answer is:
As far as faraday cages go, a microwave makes a poor cage but is WAY better than no protection at all.
Microwaves are grounded. I've not seen one in years that didn't have a 3 prong plug.Faraday cages need to be grounded right?
If its plugged in to the wall, and your house is grounded that would make the microwave grounded.
To mount it randomly somewhere and not ground it... I dont think it will work as intended.
It's our weekly "Faraday Cage and EMP Misinformation Thread."
Sorry if I offended you. I have no idea about them and was asking for a friend. EMPs will not affect my BOV as he has 4 hooves. And if all my electronics croak, oh well. I like my computer but it is not that important. Out here is close to SHTF living anyway<smile>.
First off, I am baffled by how many survivalists who are obsessed with Faraday cages and EMP. I truly don't get it.I was asked by a friend......can microwaves be used as Farraday cages? I have no idea. Somebody had dead microwaves mounted to use as such. Gurus? Yes? No? Maybe? Thanks.
There are devices I'd like protect. For example, my emergency radio. My walkie-talkies (a huge force multiplier--I'd stock a dozen if I could afford it). My battery charger.First off, I am baffled by how many survivalists who are obsessed with Faraday cages and EMP. I truly don't get it.
Nobody can quantify the probability or risk; further, it's probably more about international relations than it is about technology.The risk of an EMP wiping out home electronics, while certainly not impossible, is so far out there it borders on science fiction.
A million other things that are a greater danger than EMP? I consider EMP as having a nontrivial probability. But I'd love to know how you decided there are a million things which are a greater danger. Maybe I'm overprepping. Maybe I should ignore it.Seriously guys, there are a million other things that are a greater danger than EMP. If you prepped to the point that all the other stuff is cared for, then go have fun messing with Faraday cages. Otherwise, reconsider your priorities.
"probably a reasonable form of protection"??? C'mon. On what basis? Many who have tried them using cell phones have found they don't work. That's a real indictment of their reliability. How many have taken those microwave ovens and tested them right under a cellphone tower? Very few, I'll wager.Anyway, to answer your question: Microwave ovens probably are a reasonable form of protection. The screened door is a weakness but not a deal breaker. You can always line the inside of the door with sheet metal or tin foil. Make sure the piece is grounded to the rest of the unit, and the entire unit is grounded to earth with as short of a wire as possible.
Exactly. This is what makes your prior paragraph so inexplicable to me. You note that radio signals and EMP are not a one-for-one match (and are they ever not a match), and yet you argue that microwave ovens are "probably a reasonable form of protection". I don't get it.Also, placing a cellphone inside a protected space and seeing if it loses service is not a legitimate test. Radio signals and EMP are not a one-for-one match.
Using a microwave oven is a leap of faith.To really know if you are protected would require testing in a lab with some big-buck equipment. Any kind of home built EMP protection device is a leap of faith because you will not really know how effective it is until it's actually hit with a pulse.
It's all the rhubarb created by One Second After, combined with misinformation. Just as Patriots have a lot of people convinced there MUST be an economic collapse... even though they don't know what that means... or how it would come about... or even really WHY it would come about... OSA makes people think an EMP is something any nation or group could pull off perfectly with devastating effects. Combine that with people thinking it's some sort of 'magic' that will turn off all technology, even flashlight batteries and the gunpowder in bullets, and you've got something that drives many into a frenzy.First off, I am baffled by how many survivalists who are obsessed with Faraday cages and EMP. I truly don't get it.