GSM jammers with their own hands: scheme

Today, communication with each other has become much easier, thanks to the emergence and ubiquitous distribution of mobile phones. But, on the other hand, such development entails many unpleasant moments. And in order to avoid all sorts of surprises, came up with special devices that are now available not only to scouts, but also to ordinary people. These are so-called suppressors or jammers. With their help you can not be afraid of hidden video cameras, wiretapping, "bugs" and similar "tricks" that are available today for everyone.

Suppressors can be purchased, for example, via the Internet. And radio amateurs make them themselves. How these devices work, what they are capable of and how to make a GSM jam with their own hands, let's talk in the next article.

How Do Suppressors Work on Phones?

Some of them are devices of this type that when devices enter the zone of their operation, all around the phones are caught only by interference, and people can not talk on them.

Other GSM jammers are aimed at scanning frequencies and are looking for a certain signal. At the moment when it appears, they begin to generate interference. Thus, the electric energy is considerably saved.

Suppressor, similar to cellular

Devices can have a different range. Some of them do not spread more than ten meters. They are perfect for a small office or car.

More serious models have a range of about fifty meters. They can be used, for example, in conference rooms or meeting rooms.

But there is a device with a huge range of action. It can spread the noise to entire areas. Of course, only special services are available such a GSM jammer.

The diagram below will help you to design the device yourself.

Suppressors and the law

Nevertheless, one must bear in mind that, according to the Russian federal law "On Communications", all communication blockers are subject to mandatory registration and certification. The certificate is issued by the device manufacturers themselves at purchase, but the owners of the devices are responsible for the registration procedure. If it is not passed, then the operation of the device is an illegal act, for which it will be necessary to bear responsibility.

But thanks to such devices, you can protect yourself from various spying devices that have the purpose of invading your personal life. To detect them is sometimes unrealistic because of the miniature size, but GSM jammers can easily cope with the task.

Installation and operation of the oppressor

The installation of the device is quite simple. The antenna is screwed into the connector, and the jammer will suppress the signals within ten seconds after switching on. The lock is able to work both in standalone mode and through the network. Also, if necessary, you can use the car's cigarette lighter.

But do not forget that illegal use of the device is a violation of the law.

Tweaking

It happens that after the GSM jammers have charged, having turned on the devices, they find out a weak job, the distribution of the action only to a certain carrier or something else. This happens if operators use slightly different frequencies.

But in order for the device to work with them, it is necessary to perform the following actions:

• Remove the switch;
• Unscrew the antenna;
• Remove the cover;
• Pull out the microcircuit;
• Turn it with a screwdriver to increase or decrease the frequency trimmer resistor.

Who needs to invade someone else's life

Similar actions are taken to set up on WiFi.

Probably everyone knows today what "bugs" are. Various means for wiretapping are currently used not only by special services. They can install a student and even a schoolboy.

However, most often in such devices are interested in jealousy, business competitors and others. Spyware is capable of harming any person. Therefore, many people are interested in information protection today. And the suppressor-jamming GSM is exactly the device that fights against such phenomena.

Well, about GSM 900-1800 cell phones, many have long known that without a jammer they easily turn into a means of information leakage.

Jamming Bluetooth, 3G, Wi-Fi

Such a device is usually invisible and operates at certain frequencies. At the same time on the cell phone, when the device is operating, something like "network not found", "no signal" and so on is usually displayed. And if it was established with some adaptation, then after a few seconds it is interrupted. Then no spyware will be able to eavesdrop and catch signals.

The jammers of GSM phones or Wi-Fi do not emit a powerful noise, a radio signal. Therefore, household devices both worked and continue to work.

Highly sensitive spyware can be installed anywhere: in offices, cars, apartments, saunas and so on. Communication occurs at certain frequencies. Conventional detectors often do not cope with the task and are not able to "calculate" modern spy techniques. But the jammers, developed in view of the increased conditions and requirements, can "render harmless" the space.

Suppressor and anti-GPS tracker

In recent years, one more type of spy equipment - GPS trackers - has become widespread. They are not only designed to control freight, as manufacturers often say. They are often used and power structures, and private detectives, and the same envious competitors, right up to criminal structures.

These are absolutely miniature devices, which are easy to hide. And in the end, a certain person will be under such automated surveillance. That's why the jamming of the GSM signal, a sort of anti-tracker, has also been developed.

These are certain modules that do not allow you to calculate the coordinates of the location of a person or vehicle. Those who track using a tracker will only see "no data", or the data will not arrive at all at all.

Due to vehicle suppressors, anonymity is ensured and personal information can not be collected via GPS channels.

Devices are able to successfully combat any kind of espionage technology that can harm anyone in their personal lives and in the business sphere, as well as the whole organization. Therefore, in our realities, such things can not be neglected, and we must try to protect ourselves, our relatives and employees from spy gadgets.

GSM jammer with own hands

In the Internet, you can find instructions for self-assembly of devices.

One of them is given below.

The suppressor is able to withstand the signal at a frequency of 800 megahertz - most mobile devices are tuned to it. The generator of control is a generator of a swinging wave. The device works perfectly, but for its assembly, certainly, certain skills are necessary.

The synchronous signal generator is taken at forty-five megahertz. The heterodyne port responds to it. As a result, interference is obtained. The resistance at both the local oscillator port and in the generator is equalized by sending a signal from the oscillator of the oscillations of the receiver.

The last generator's port has an antenna for 800 megahertz. The RF output is connected to the amplifier, increasing the power of the device to sixteen dBm. After that, the increased signal hits the antenna.

Next, they come up with a body, install a battery, which is protected from other parts. A switch is attached to the body.

GSM-jammer with its own hands inside is made of:

• VCO;
• Tuning scheme;
• Antennas;
• Amplifying cascade;
• Source of interference.

Jammers operate at different frequencies, depending on the need to interfere with certain communication devices.

The VCO can be considered the "heart" of the whole device. It produces an RF signal. The RF amplification unit will be needed to extend the range of the device. The tuning circuit is with feedback and open. Cascade amplifiers are sold in different capacities. But it should be understood that with more power, the running time will decrease. The antenna transmits signals generated by the suppressor. The power supply maintains the life of the device. As it can be used lithium-ion battery. But if you use a conventional power source, be sure to purchase the AC adapter.

These are the means today to deal with the side effects of those inventions that may have been intended for very different, good and useful purposes.