A microwave gun is a powerful device capable of directionally emitting microwave waves. You can make it yourself from the microwave. It requires the utmost care both in creation and in use. Next we will list why this homemade device is needed.
How to use a directional microwave emitter
A powerful microwave gun can be used for the following purposes:
- Destruction of beetles and other harmful insects. Microwaves turn liquid molecules into steam - this way you can exterminate bugs gnawing on wooden buildings. The wood itself does not suffer from microwaves.
- Melting of non-ferrous metals.
- Drying and sterilization of cereals (kills bugs and bacteria).
- Disabling listening devices. Microwaves interfere with the operation of any “spy” devices.
- Interference with the neighbor's TV turned on at full volume - you can easily turn down the volume. Please note: telephones hang up 10 meters from the gun, and sound distortion occurs in computers and televisions. Do not use these devices for long periods of time - they may explode.
- Ignition of fluorescent lamps from a long distance.
- Boil a small amount of water.
How to make a microwave gun
You will need a microwave oven - any one will do, even a burnt one. We will make the gun from a magnetron - this is the main element of any microwave oven. It must be in working order. To create the device you will also need:
- Container - for example, a tin can. The best option is a speaker enclosure.
- Wire and other small things that may be useful when connecting parts of the device.
The first step is to remove the magnetron. Initially, this element was created to generate microwave electromagnetic oscillations in radar stations (radar stations). Microwave ovens have magnetrons that generate microwaves with a frequency of 2.45 GHz.
How does a magnetron work?
In appearance, the emitter resembles a radiator topped with a pin. The radiation power is 0.7-0.8 kW. If you buy a magnetron secondhand, on the radio market, it will cost you about 800 rubles.
The electrical circuit diagram allows you to thoroughly understand the magnetron, which is essentially a diode. The cathode heats up and electrons are knocked out of it. The anode is cold and has resonators that complicate the appearance of the electric field generated in the emitter. The latter is placed between coils with current - they create a magnetic field that bends the straight path of electrons. Without the action of a magnetic field, electrons would tend to the anode in a straight line, but the electron path is curved under the influence of the Lorentz force.
It is necessary to provide power to the emitter: for example, from a converter with a charger from a computer uninterruptible power supply unit.
You need to work with the gun with extreme caution: the radiation must not be focused on the body, this is especially dangerous for the eyes.
Why do you need an antenna?
For targeted action, a microwave gun needs an antenna. To do this, make a hole in the jar.
In a jar with a height of 175 mm and a diameter of 75 mm, a hole with a diameter of 20 mm is made on the side, departing from the bottom by 37 mm. The magnetron is removed from the stove body, and the wires going to it are extended with wire.
When designing, be careful. A microwave device based on a magnetron gets very hot, so do not turn it on for a long time. You should be wary of microwave radiation: its effect on the body has not been fully studied. When working with the emitter, be sure to use protective equipment.
Good afternoon, dear Khabrovsk residents.
This post will be about the undocumented functions of the microwave oven. I'll show you how many useful things you can do if you use a slightly modified microwave in an unconventional way.
The microwave contains a generator of microwave waves of enormous power.
The power of the waves that are used in the microwave has been exciting my consciousness for a long time. Its magnetron (microwave generator) produces electromagnetic waves with a power of about 800 W and a frequency of 2450 MHz. Just imagine, one microwave produces as much radiation as 10,000 wi-fi routers, 5,000 mobile phones or 30 mobile phone towers! To prevent this power from escaping, the microwave uses a double protective screen made of steel.I open the case
I want to warn you right away that electromagnetic radiation in the microwave range can harm your health, and high voltage can cause death. But that won't stop me.Removing the cover from the microwave, you can see a large transformer: MOT. It increases the mains voltage from 220 volts to 2000 volts to power the magnetron.
In this video I want to show what this voltage can do:
Antenna for magnetron
After removing the magnetron from the microwave, I realized that I couldn’t just turn it on. The radiation will spread from it in all directions, affecting everything around. Without hesitation, I decided to make a directional antenna from a coffee can. Here's the diagram:Now all the radiation is directed in the right direction. Just in case, I decided to test the effectiveness of this antenna. I took a lot of small neon bulbs and laid them out on a plane. When I brought the antenna with the magnetron on, I saw that the lights were lighting up exactly where needed:
Unusual experiences
I would like to note right away that microwaves have a much stronger effect on technology than on people and animals. Even 10 meters from the magnetron, the equipment experienced severe malfunctions: the TV and music center made a terrible growling sound, the mobile phone first lost the network, and then completely froze. The magnetron had a particularly strong influence on wi-fi. When I brought the magnetron close to the music center, sparks fell from it and, to my surprise, it exploded! Upon closer inspection, I discovered that the mains capacitor had exploded. In this video I show the process of assembling the antenna and the effect of the magnetron on technology:Using non-ionizing radiation from a magnetron, plasma can be obtained. In an incandescent lamp brought to the magnetron, a brightly glowing yellow ball, sometimes with a purple tint, like ball lightning, lights up. If you do not turn off the magnetron in time, the light bulb will explode. Even an ordinary paper clip turns into an antenna under the influence of microwaves. An EMF of sufficient strength is induced on it to ignite an arc and melt this paper clip. Fluorescent lamps and housekeepers light up at a fairly large distance and glow right in your hands without wires! And in a neon lamp, electromagnetic waves become visible:
I want to reassure you, my readers, that none of my neighbors suffered from my experiments. All the closest neighbors fled the city as soon as fighting began in Lugansk.
Safety precautions
I strongly do not recommend repeating the experiments I described because special precautions must be taken when working with microwaves. All experiments were performed solely for scientific and informational purposes. The harm of microwave radiation to humans has not yet been fully studied. When I came close to the working magnetron, I felt heat, like from an oven. Only from the inside and, as it were, pointwise, in waves. I didn't feel any further harm. But I still strongly do not recommend pointing a working magnetron at people. Due to the thermal effect, the whites in the eyes can coagulate and a blood clot may form. There is also debate that such radiation can cause cancer and chronic diseases.Unusual uses of the magnetron
1 - Pest burner. Microwave waves effectively kill pests, both in wooden buildings and on the sunbathing lawn. Bugs have a moisture-containing interior under their hard shell (what an abomination!). Its waves instantly turn into steam, without causing harm to the tree. I tried killing pests on a living tree (aphids, moths), it was also effective, but it is important not to overdo it because the tree also heats up, but not so much.2 - Metal melting. The magnetron power is quite enough for melting non-ferrous metals. You just need to use good thermal insulation.
3 - Drying. You can dry cereals, grains, etc. The advantage of this method is sterilization; pests and bacteria are killed.
4 - Cleaning up from wiretapping. If you treat a room with a magnetron, you can kill all the unwanted electronics in it: hidden video cameras, electronic bugs, radio microphones, GPS tracking, hidden chips and the like.
5 - Jammer. With the help of a magnetron you can easily calm even the noisiest neighbor! The microwave penetrates up to two walls and “calms” any sound equipment.
These are not all possible applications that I have tested. Experiments continue and soon I will write an even more unusual post. Still, I want to point out that using a microwave like this is dangerous! Therefore, it is better to do this in cases of extreme necessity and while observing safety rules when working with microwaves.
That's all for me, be careful when working with high voltage and microwaves.
I watched the suggested video and I had a number of questions. Including to the forum participants. shov244, You are in your post dated 10/13/14. at 22:38 write What is shown in the video with a piece of metal wire is not the melting of metals, but the effect of a kind of short-circuit microwave radiation (although this is not a very scientific definition of this effect). With the same success, this wire could be stuck into a socket, get a “bang” with metal splashing, and prove that metal can also be melted using this method. There are, of course, chipboard-type stoves, but that's a completely different story. As for melting metal in an ALTERNATING MAGNETIC FIELD, much depends on the thickness skin layer, which is approximately described by the simple empirical formula Δ=503√ρ/μƒ, where Δ is the thickness of the skin layer, ρ is the resistivity of the melted metal, μ is the relative magnetic permeability, ƒ - radiation frequency. And now, shov244, substitute the frequency of ELECTROMAGNETIC radiation from the microwave magnetron 2.45 GHz into the formula and calculate the value of the skin layer in a column; and you will get 0 whole, x.. (pardon me - very, very few) tenths of mm. And think about the result. As for one more statement sashko65(post dated 10/14/14 at 9:22 am) then I am interested - how does this process work? As I already noted, the magnetron frequency in a microwave oven is 2.45 GHz. The frequency at which mobile phones operate: CDMA standard - 0.45 GHz; GSM standard - 0.9/1.8/1.9 GHz; There is also an advanced 3G standard (aka UMTS 2100), then the cutoff frequency is 2.17 GHz. In this regard, there was a completely legitimate question intact(post from 14.110.14 at 13:40) and shov244(post from 10/14/14 at 22:39)
| Quote: |
| It looks like he doesn’t know... and why should he go into this, he himself has a mustache - it can’t be like that and that’s all! |
So in reality, everything looks completely different than it actually is.
Well, for now - bye.
SAFETY and EFFICIENCY
1. ANTENNA STRUCTURE:
The waveguide must be wide to absorb return waves from the fittings,
aluminum profiles, other metal objects or mirror surfaces.
and not just a coffee can, as is usually shown in other examples.
Ideally, it should be a huge parabolic antenna.
It may not be practical, but it is effective and safe.
The best option is a waveguide that fits into the microwave body (as in the example).
2. ANTENNA INSULATION:
The waveguide must be firmly attached to the body and insulated with aluminum tape,
otherwise, all the return waves will destroy the electronics of the gun or the operator located nearby.
For the experiment, being not yet isolated, I started the unit and placed a piece of iron in front of the waveguide.
The electronics of the gun itself were severely malfunctioning from the reverse waves and an unbearable roar was growing.
Isolated and repeated the experiment. Everything is fixed, no losses.
Insulation is a very important factor for efficiency and safety.
3. OPERATION OF THE GUN:
The gun should always be placed perpendicular and close to the wall,
so that the wide waveguide absorbs all the return microwaves and sends them back.
The closer to the wall, the closer to the target. Every millimeter is important.
The closer to the wall, the greater the absorbing probability of the waveguide.
The closer to the wall, the less losses. Efficiency and safety are increasing.
The gun must be placed perpendicular to the wall, not at an angle,
Otherwise, some of the waves are scattered from the wall, and the distance to the target increases.
4. PRECAUTIONS:
Normal precautions must be observed.
Any overalls (suit, spacesuit, helmet, gloves, umbrella) made of radio fabric or aluminum will be very useful.
Here's the ideal option:
In this gun, not only microwaves pose a danger, but also temperature.
It’s not for nothing that microwave ovens have this sign: 
P.S.
But to be honest, the waves scatter a lot.
This is only dangerous if you are on the wave path, near the gun
or exposed to radiation for too long.
Electrode wrote:
I don’t understand, but what about the danger for the operator of this gun?
Reflected waves cannot affect the eyes?
@Laerza:
He can handle the plaster, but as @totoro already said,
do not point at aluminum profiles, as
microwaves fly away from it in different directions.
The same thing with fittings. It's dangerous, but not fatal.
Laerza wrote:
I have a double gypsum concrete wall with a 5 cm air gap. Do you think it will work?
What happens if it hits iron reinforcement hidden in gypsum concrete?
I don’t know where it’s laid there, but I know that it’s there somewhere inside.