How to make an electromagnetic pulse

If you want to get your hands dirty on a semi-evil electronics project, this DIY EMP generator is fun—if not a little dangerous—build to try. It won’t fry much, except at extreme short range, so you should be careful with it, but you’ll learn a lot in the process.

The video above tells the tale, and the project is actually the work of YouTuber FPS Weapons . You can see near the end of the video how he used it to make an old Game Boy Advance boot loop itself, and how he fried a couple of old smartphones. Of course, if you build it yourself, you shouldn’t run around killing people’s peripherals, and anything even remotely well shielded can stand up to what this will put out—but the process of building this will teach you a bit about electromagnetic fields, and how to generate them and how strong they can be based on the power source you provide. Hackaday notes:

The device is pretty simple. A DC source, in this case an 18650 lithium battery cell, sends power to an “Ultra High Voltage 1000kV Ignition Coil” (as the eBay listing calls it), when a button is pressed. A spark gap is used to dump a large amount of magic pixies into the coil all at once, which generates a strong enough magnetic pulse to induce an unexpected voltage inside of a piece of digital electronics. This usually manages to fire a reset pin or something equivalent, disrupting the device’s normal operation.

While you’re not likely to actually damage anything in a dramatic way with this little EMP, it can still interrupt an important memory write or radio signal and damage it that way. It’s a great way to get the absolute shock of your life if you’re not careful. Either from the HVDC converter or the FCC fines.

That last part is important to note, so if you do decide to try this project, keep it to the confines of your own home, or the local hackerspace, where you can be free to experiment with things like this.

Projects for the interested person. Let’s get to work!

Friday, October 19, 2012

How to make an EMP

You are sitting on your laptop reading the news. Suddenly, your laptop goes blank and the power shuts off. You attempt to turn it on but to no avail. You turn on your cell phone to find that the memory has been wiped. Nothing works, and you have no idea what is happening.

An EMP weapon could make that nightmare a reality.

EMPs (Electromagnetic Pulse) are released with Atomic Weapons. A nuclear weapon detonated high in the atmosphere could cause a widespread devastating EMP. Scientist are also researching a weapon that would provide only the electronic slaughtering power, minus the gamma rays.

But what better way to understand this technology than to make one yourself?

DISCLAIMER: This project is for entertainment purposes only. I am not responsible for any damage caused to Electronics by this device.

Ready to make an EMP?

I have two methods for you.

Method #1, Handheld

Handheld EMP?! I thought they only came in massive bomb types?

If you knew anything about EMPs before reading this, that’s what you will think. Well, it is possible.

Amazingly, you don’t even have to build a complex circuit. The entire circuit part of this project is already provided, pre-built. It costs around $5. Yes, the disposable camera strikes again!

How to make an electromagnetic pulse

To start your EMP project, you need a homemade Taser. This can be easily built from that vicious little tourist device above me. Scroll down a bit to find my guide on how to make one. It should literally take around 5 minutes.

Familiarize yourself with all the parts on the Camera’s circuit board.

Now, you will need a few other parts. Go buy some insulated copper wire (the thicker the wire, the more powerful the EMP) and an iron rod. You can also use a non-metal rod, but this will be less powerful.

How to make an electromagnetic pulse

Take the copper wire and wrap it around the rod, TIGHTLY. As tight as possible. Once you are finished there will be a wire sticking out on either end.

Take the Camera Circuit (Taser) and solder the ends of the wires to the Capacitor. Make sure it is shorted first and the battery is out, unless you want to end up like the criminals mentioned in the Taser guide.

Now, GET OUTSIDE. Go far out into your backyard. Ensure that you don’t have ANYTHING electronic in your pockets. Ensure that you don’t have ANYTHING electronic in your hands. Heck, ensure you don’t have ANYTHING electronic in your underwear, just in case. A mistake, and you may permanently break whatever you forgot to put away.

If you are using a Pacemakers or life support device, go get a hammer and smash your EMP. NEVER USE IT. You’ll kill yourself. Keep this well away from anyone who has any of these devices.

Lastly, NEVER use it to interfere with other people’s electronics or broadcasts. If you destroy some guy’s iPhone with your EMP, you can be arrested as easily as if you took a chainsaw and destroyed it that way.

But of course you want to make sure it works. Hence why I said get outside. You aren’t going to leave this awesome device sitting there not knowing if it works, are you? Of course not.

We need a guinea pig. No, not an actual guinea pig. The EMP wouldn’t even affect it. A theoretical guinea pig. And the little device we are going to punish for no real reason? Meet the $0.99 Office Depot Calculator.

Look at that. Just asking for it, isn’t it?

Maybe not, but it’s only a dollar and is electronic. Need I say more?

Take your victim (the calculator, what were you thinking?) and place it as close to the EMP as possible without touching it. Again, ensure that you are nowhere near anything else electronic. Your EMP should have a blast radius of a few feet.

Put the battery in. Push the switch. If needed, you may want to remove the wires to charge the capacitor, but this as dangerous as you may shock yourself.

How to make an electromagnetic pulse

How to make an electromagnetic pulse

No. None of that will happen. If you did everything right, you really shouldn’t see anything. Once it is finished, go unplug the battery. Now, the moment of truth!

Pick up your (hopefully) dead victim and press the ON button. Does it work?

If yes, well, you did something wrong.

If no, CONGRATULATIONS! Your EMP is finished. Please keep reading for the warning at the end.

Method #2, EMP Explosive Device

This one is not re-usable. You also don’t need a Camera.

First, check your local laws to find out if Firecrackers are legal. They are? Excellent!

Go to the Firecracker store and buy one.

Now, look up Neodymium Magnets. Neodymium is a Rare Earth that forms superb magnets. Buy two of them.

Make the EMP Coil rod as described in Method #1. But, instead of a solid rod, make sure that the rod is hollow and can fit the firecracker. Also, do not connect it to any Camera circuit or capacitor.

Stick the Neodymium magnets on either end of the firecracker, and connect the copper wires to the magnets. Put your electronic victim near the device (not too close or you will just blow it up). Make sure you are in a safe area with no people or electronics around. Take a match, light the fuse, and RUN! Get as far away as possible. The firecracker will explode and possibly send a neodymium magnet into your skull. However, it should generate the same EMP affect which will wipe out the Calculator.

Legal Issues. In the United States, do not use this device on any device other than your own or you risk being arrested. Keep it legal, and only break your own electronics.

Always keep the battery out when not using it, and store it away from electronics. just in case.

NEVER use this near ANYONE using a pacemaker or life support. Keep them as far away as possible, or you could hurt them.

If you have an RFID that needs killing, this works great!

Lastly, if you built an EMP Proof box and want to test it, just stick a calculator in there and fire off the EMP. If it still works, you did well.

Questions? Use the comment function.

Enjoyed this Project? Tell your friends about MakeTech!

In This Article

Share and Enjoy !

This guide will show you exactly how to make a Faraday cage to survive an EMP and do much more.

When we think about prepping, we generally think of the imagined scenes that are shown in films. Consider a huge disaster, a military attack, or even a zombie apocalypse.

However, I’m assuming you don’t think of a solar flare or an electro-magnetic pulse too much. It’s strange that preppers don’t normally accept such scenarios because they’re both plausible and risky.

Worse, they can follow the imagined scenarios that we all want to fantasize about. This makes a tough situation much more difficult to overcome.

That is why I want you to understand how to make a Faraday cage. They’re not difficult to use, and they can come in handy if you ever find yourself in a position where electromagnetic fields are a problem.

Let’s dive right in.

Why You Need a Faraday Cage

1. Solar Flares

A solar flare is an outburst on the Sun’s surface. Huge explosions occasionally trigger a flash of electromagnetic radiation, including X-rays. Solar flares are classified into three types based on their X-ray intensity, according to scientists.

X-class flares are the most intense. There are major incidents that have the potential to trigger radio blackouts around the world. Medium-sized flares are classified as M-class flares. They are capable of causing brief radio blackouts that threaten the Earth’s polar regions.

C-class flares are weak and have little visible effects on Earth. It is not a question of whether or not the Planet will be hit by another powerful X-class flare; it is a question of when.

A Faraday Cage will assist you in preparing for the next large X-class solar flare occurrence. Safeguarding any of the backup mobile equipment.

2. EMP

The global growth of nuclear powers is accelerating. As well as the global political unpredictability. As a result, there is growing anxiety about the real likelihood of a potential nuclear strike.

EMP blasts are generated by all nuclear explosions. However, certain designs may have a greater EMP impact than immediate death. These are referred to as (EMP) weapons. They detonate in the stratosphere. They can use the Earth’s magnetic field to reflect and intensify the effects of EMP.

3. Phone Tracking

I know it sounds like a plot from a spy film, but almost all current mobile phones have a GPS chip. From the most advanced mobile to the most rudimentary flip phone.

This feature allows you to use your phone as a GPS navigator. However, it also provides cell service providers with details about your location (past and current). During police cases, authorities also exchange this location information. Furthermore, during search and rescue operations.

This data is only meant to be kept for a short period of time. However, it is unknown how long businesses hold these position logs.

Furthermore, it is unknown who will seek access to these documents. However, if you block mobile signals to your phone, the GPS will be unable to trace your phone.

A Faraday pack, such as my highly recommended Mission Darkness Non-Window Faraday Bag (on Amazon), will conceal your position and activity from prying eyes.

How to make an electromagnetic pulse

December 5, 2014

How to make an electromagnetic pulse

Click Here To See The Comments

For many preppers, the threat of electromagnetic pulse (or EMP) is often at the front of their minds. In such an event, the power grid will fail and many of our devices will be useless. Only devices that are EMP-proof will still be usable after an electromagnetic pulse occurs.

Knowing how EMP-proof devices work and how to make your own will give you a leg up during an EMP attack. EMP-proof electronics will help you communicate, get around, and keep your family fed.

A Ray of Hope: EMP-proof Electronics

An electromagnetic pulse or EMP attack could happen for many different reasons, natural or man made.

You may be surprised how many electronic devices can be EMP-proof. It’s all a matter of understanding the science behind it and being able to find or build such equipment.

Click here to read the full article on EMP-proof electronics and how they work.

The Old-School Forgotten Art To EMP-Proof Electronics

As someone that loves to tinker with electronic devices, I am a firm believer in the potential for both natural (odds have increased substantially in the last few months because Earth’s magnetic field is weakening faster than expected) and human-made EMP attacks.

That being said, I also know that many of the worst problems that will come from an EMP attack can be reduced by using older technologies that rely on electronic components which are far less vulnerable to an EMP.

Electronic Devices Are Not As Complex As You Might Think

If you find yourself confused by electronic devices, simply remember that every component does one of five things with mathematical precision depending on the materials used:

allows electrons to flow through it

does not allow electrons to flow through it

prevents electrons from flowing until enough of them build up on one end of the component

allows electrons to flow if they are moving in one direction, but not if they try to go the opposite way

atoms within the component may change the organization of their own electrons so that the flow of electricity is accelerated, slowed down, or number of passing electrons increases

Once you understand what each component does, connecting parts in various patterns will create larger devices that meet specific goals.

All you need are the right components and a diagram that shows you how to arrange them.

Electronics Before Integrated Circuit (IC) Electronics

While Tesla and Edison were battling for control of how electricity would be produced and transmitted, most people were relying on oil lamps for light and cranks to start their automobile engines.

Interestingly enough, everything from the first telephones, victrolas, and radios, to televisions and nuclear bombs operated without the use of microchips and other semiconductor components that are highly vulnerable to EMP attack.

Unless you have been living under a rock, you would be aware of the fact that unfriendly nations the likes of Russia, China and North Korea have nuclear weapons. This poses a serious threat to the free world and as preppers we know that if we are attacked by a nuclear bomb, the electromagnetic pulse created can turn both man-made and natural structures in a wide radius into rubble in seconds. There is no need to mention how it will affect us humans.

The mere EMP from a nuclear blast can disable all electronic devices and appliances within its predetermined radius, depending on the altitude of the explosion. The power grid will definitely be shut down if not destroyed completely. Just thinking about the effects can put anyone in despair, but this has not happened, yet. There are ways by which we can protect ourselves. We can only hope that the human or the feeling aspect of those who intend to do such a thing would surface and keep them from destroying our fragile world as well as our lives.

How to make an electromagnetic pulse

An EMP is a form of intense electromagnetic radiation. It’s also known as nuclear electromagnetic pulse (NEMP) when it’s generated from a nuclear blast. The exact effect of such a blast depends on the specifics of the weapon and also on the altitude of the blast.

The real danger from an EMP is its ability to damage an entire power grid. That will lead to the chaotic breakdown of societies dependent on electric power. Experts say that the energies from a nuclear detonation can come in the form of three successive waves. The combination of these waves can cause damage over a wide area. This would cause people to have to rely on alternative power.

Needless to say, without power, everything that depends on electricity will be stalled. These include communications, transportation services, and water supply.

Natural EMP strikes can occur when the sun emits huge streams of plasma. In most cases, the Earth’s magnetic field can deflect them. Still, there can be powerful solar discharges that can generate strong EMPs.

The Carrington Event of 1859, is the only recorded example of such an event. It was powerful enough to knock out the telegraph lines of that period.

In the case of man-made EMPs, high-altitude nuclear detonations won’t harm human life directly. But it can affect electrical equipment within a 1,000-mile radius of the blast center. The blast can also affect satellites in a low orbit.

And the worst part?

Recovery from an EMP attack can take months or even an entire year. That’s long enough to break down the fundamentals of a civilized society.

As a prepper, the best thing you can do is to stay prepared for handling such an event.

How to make an electromagnetic pulse

A tank commander on the front line radios in a report during an international crisis…and there is no response. Has a stealthy electromagnetic pulse (EMP) attack destroyed the radio electronics in the opening a shot of a new war? Has it hit just the platoon, or the whole division? Or is the problem just a broken radio antenna?

EMP is the perfect sneak attack. The invisible, silent radio pulse is only apparent when electronics stops working. At present there is no way of telling when an EMP attack has occurred, or what it has affected, so the Pentagon’s Defense Threat Reduction Agency is working on sensors to detect and analyze EMP sensors under its Conventional Nuclear Integration/Battlefield Nuclear Warfare program.

Electrical engineer David Schriner built an EMP weapon which fits into a VW camper van. May 1, 2001 . [+] at the Aberdeen Testing Facility in Maryland. The weapon, which uses commonly available materials, simulates a electromagnetic pulse similar to that of a nuclear weapon, which disables electrical and communictaions devices such as cell phones, computers, radios and medical monitors. The US government funded the project to determine whether the technology poses a significant terrorist threat to the country. (Photo by Greg Whitesell/Liaison)

Military analysts have long warned about the threat of electromagnetic pulse, a blast of radio waves burning out electronics devices. The most extreme version is nuclear EMP from a high-altitude explosion, which might disable power systems across the continental U.S. in a ‘Pearl Harbor’ surprise attack. Tactical EMP warheads (‘E-bombs’) are more likely, conventional weapons which can knock out electronics in an area hundreds of meters across, like the fictional one in Ocean’s 11. Beam weapons to hit individual targets are also on the way; last week Russia announced the successful test of an EMP cannon which can disable aircraft and ground vehicles at ranges up to six miles.

China has also been working on EMP weapons to counter American superiority in aircraft carriers and other high-tech weapons. Defenders need a way to sense such attacks, determine their likely effects and where they are coming from.

“The modern battlefield is heavily dependent on electronic systems and near real-time data,” says Tom Cartledge of the DTRA’s Nuclear Detection Division. “Warfighters would benefit by being able to rapidly assess why these essential systems are not functioning properly so that appropriate troubleshooting or alternate procedures can be initiated.”

All Three Of The U.S. Navy’s Most Powerful Submarines Were Under Way At The Same Time, In The Same Place

Drone Striking World Trade Center Is A Wake-Up Call

The Taiwanese Army Has More Tanks Than a Chinese Invasion Force Does—Until China Captures A Port

Central to this, says Cartledge, is knowing where equipment has been affected by EMP or if the fault lies elsewhere. There are already devices out there to detect other types of EMP, for example the bursts of radio waves from a nearby lightning flash. This type of sensor could be adapted but the military demands are more complex and will not be met by a single device.

“Our initial assessment is that we’ll likely need a family of sensors to fully inform the battlefield,” says Cartledge. “This would include sensors for dismounted warfighters, mobile command posts, and fixed facilities. Because of size, weight, power, and data constraints with these different platforms, it is likely these sensors will vary in capability.”

The smallest might be no more than an ‘EMP sticker’ carried by an individual soldier to warn they may have been affected and they need to check their electronic gear. Larger and more sophisticated sensors would give details of the pulse – its duration and intensity – indicating what equipment might have been damaged and how badly. EMP effects can range from temporary glitches easily fixed by rebooting to permanent burn-out and are highly unpredictable. Anything with an antenna which picks up radio waves is likely to be damaged most, but this is not a reliable rule.

New sensors could potentially tell EMP is from a nuclear event, or what type of conventional device was used, which may be an explosively driven EMP bomb or a generator like a high-power radio transmitter.

Simply knowing that EMP attack has taken place is useful, but it would better to know the size and extent. Sensors could also triangulate to get a fix on where the EMP came from. This type of arrangement is easy enough with an array of sensors, but there is a catch.

“These sensors would most likely be networked within larger systems to sharing early warning information and enable collaborative analysis,” says Cartledge. “However, communications is one of the capabilities impacted by an EMP so the sensors must be able to work stand-alone.”

Hey blog readers! we have a new Facebook page! Check it out at http://on.fb.me/U9s2Ld

UPDATE-3/20/13:
After closely examining the FCC rules, EMPs are completely illegal in the US and all of its territories. According to the rules, EMPs are legal if used under one of two conditions.
1.You are a government official who is authorized by the FCC to conduct tests with an EMP.
or
2.You are licensed to use an EMP (or any radio equipment) in a shielded room or a Faraday cage.
If you use this in america or one of its territories, you can be subject to fines of at least $100,000 and imprisonment for at least a year. Americans, you are responsible for anything you do with this knowledge For anyone in another country, PLEASE read your local regulations before attempting to build an EMP.

What is an EMP? It’s a device where once it’s sent into space, thousands of volts will be sent to the electromagnet. Then it will concentrate its power on one spot on the map, blacking out the city and destroying any metallic or electronic devices. All without humans even noticing. Still want to do it? We can’t go as serious as the description (I think that’s illegal by both the FAA and the FCC), but we can build one that’s legal (mostly), cheap, and works up 15 ft.

Disclaimer: I the author of this post assume NO responsibility for any damage done to your property. In addition, what you are building will become illegal if you use it outside your own property. Use wisely.

Let’s get started. For this project, you will need:
1 Capacitor

2 tact switches
lots of wire
1 9V battery

Let’s build it!
1. Attach the two tact switches to the two leads on the capacitor.
2. Wrap 1 Yard/Meter of wire around a tube like a PVC pipe.
3. Attach one end of the coil you made in step two to the tact switch attached to the long lead of the capacitor. (make sure to use a long wire to attach it!)
4. Connect the other long wire to the other end of the coil.

Now we can test it!
1. connect the 9V battery to the two wires not connected to anything. Make sure the positive side of the battery is connected to the tact switch and the negative side is connected to the coil.
2.Hold down the tact switch connecting the 9V to the capacitor for 15 seconds. You may need to experiment to find the right timing. (If you don’t know how to calculate the time, just do 15 seconds).
3. Let go of the switch and put a cheap electronic device inside or next to the coil. Make sure you don’t have any electronics on you before you move on to step 4.
4. Hold down the tact switch connecting the capacitor to the coil for 4 seconds.
5. Go see if your test subject still works. If it doesn’t, your EMP works!

EMP Jammer

In this article, you will see what is EMP jammer and how to make an EMP jammer.

What is EMP Jammer?

EMP is defined as Electro Magnetic Pulse. Emp jammer is a simple high peak pulse generator. We know current flowing through the conductor generates the magnetic field around the conductor. If we supply current with intervals it generates field pulses on the conductor, field increases suddenly and decreases. If we apply current pulses it generates high electromagnetic field pulses. These high-intensity pulses induce into devices and damages the device.

Make EMP Jammer

To make EMP jammer you require, a high voltage generator, coil, and switch. You can find the block diagram below.

In the block diagram, you can see a gap in one wire, it is called as the spark gap. As our need is to generate pulses this spark gap is used. When the high voltage is generated, it tries to jump from one terminal of spark gap to another terminal, which leads to generating EMP. The spark gap must be 2mm to 3mm. Let’s have a look at the following tutorial to make emp jammer with components available at home.

Components Required

  • Old bug zapper – 1
  • Old Adapter Case – 1
  • Switch -1
  • Hookup wire – 50cm.
  • Double Sided Tape

EMP Jammer Circuit

1. Take out the circuit out of the mosquito zapper.

2. Make a coil of 3-4 turns of hookup wire.

3. Solder one wire of coil to the anyone terminal of the capacitor at the output.

4. Glue another wire of coil near the another terminal of the capacitor at a distance of 2 mm or less than it.This is to create a spark gap.

5. Solder wire to circuit activating the switch to extend the switch out of the case.

6. Place the circuit in the case carefully and turn on the circuit and close the case.

7. Apply glue on the case then fix the switch and solder activating switch extending the wire to it.

8. Now apply a piece double sided tape to the case and fix the battery.

Here the circuit construction completed.

For detailed construction check the video below.

Watch EMP Jammer Construction Video

Note: While using this device, keep your electronic devices away, it may damage your device. I will not be recommended to use it. I made this for educational purpose only.

Keep this device away from people who were installed with pacemaker, stunts.

Usage of this kind of devices is not allowed in some countries, make sure your countries policies before making this device.