Recently, the Internet community has begun to pay more and more attention to cell phone jammers, especially how to make one yourself. The Jammer company and our team of specialists could not stand aside and decided to create their own instructions for you. But do not forget that creating such a complex device is quite difficult and requires certain skills and experience in the field of electronics.
3 Suppression Methods
First of all, you should know that there are three ways to jam mobile signals:
Our experts use the second method, and here's why: spoofing is a good method, but requires precise adjustment and control, and it will be quite difficult for an inexperienced user to operate such a device. Electromagnetic shielding works great, but it is tied to one location, i.e. You can forget about portable devices.
Therefore, DoS remains the best choice due to the ability to jam all mobile devices of selected frequencies within the suppression radius of the communication jammer used.
Assembling the Parts
To make a cellular jammer, you will need to combine some parts into one whole. Here is their list:
VCO is the most important part. He is like the heart of your jammer. The VCO produces an RF signal that will interact with the device being blocked. First of all, you must select the frequencies that will be used by your suppressor. Here is a list of the main communication standards:
You also need to think about the size of the future jammer, since you can create a portable cellular jammer or a desktop cell phone blocker.
Tuning Diagram can be of two types: open-loop and closed-loop. The open-loop circuit is quite simple and requires only a few components and additional passive components. The ramp generator causes the VCO to go from low to high frequency. The closed-loop circuit uses a PLL to adjust and hold the VCO frequency at the same level. For this purpose you need to use a microcontroller. It is programmed once and connected to the VCO, so it is not configurable.
RF Gain Block– this is what you need if you want to expand the coverage area of your jammer along with the signal strength. The more power your signal suppressor has, the wider its suppression radius. The price for this is, as you probably already guessed, the operating time of the device. More power equals less battery life.
There is a fairly wide selection of amplifier stages on the electronic components market (7dBm, 17dBm, and even 20+dBm). However, it should be borne in mind that the greater the power, the shorter the operating time of the device.
Transmit Antenna- This is the device that transmits the signals that your suppressor generates. The main characteristic of the antenna is VSWR (Voltage Standing Wave Ratio). If your antenna's VSWR is three or lower, then this is it, because the return loss of this antenna is minimal.
Jammer specialists use SMA antennas, as they are very easy to remove or replace. It's also worth mentioning that omnidirectional antennas are preferable if you don't want to constantly point your jammer at the jammer, like a TV remote.
Power supply maintains the vitality of your creation. Typically, cell phone suppressors use 5V DC to operate. Therefore, you can use a lithium ion battery as the power source. If you are using a regular power source, you will need an AC adapter. The mains adapter can be of two types: a controlled capacitor voltage doubler or an inductor switching boost regulator.
The first is simple and effective, but cannot be adjusted, so you will need an MPN regulator to adjust the voltage. The second is adjustable, but it is more expensive, more complex and requires precise selection of all components for stable operation.
Our production team uses switching regulators for our creations. It takes more time and labor, but the result is worth it. AC/DC adapters are manufactured for almost all types of mobile phone jammers.
Additional Notes
And finally
Well, did you like it? Now you have an idea Which The work is done by our respected research and manufacturing experts to invent, develop, create and manufacture this variety of reliable cell phone jammers for your use.
The world of electronic gadgets is a huge and interesting place! He has something to show and something to surprise. It can help us enjoy modern, useful, and simply cool things.
And he will be glad To you like its new part!
For a long time now, people who are interested in radio electronics have been looking for various diagrams and instructions to assemble some sophisticated device for personal use. I am also among these people. While surfing the Internet, I found an article by the Jammer company called Instructions: How to Make Your Own Cellular Jammer. After reading it and looking at the diagrams, I became eager to do something similar for myself.
Because their instructions had all the information I needed, including diagrams and technical data. I thought of some details myself, and in the end I made my own cell phone suppressor. Below I have described the entire process.
This mobile signal blocker operates on the 800MHz frequency because many mobile phones operate on this frequency. So I used a sweep generator as a VCO. It works just fine, but if you are new to radio electronics, it will be quite difficult for you to assemble such a part without good tools.
The 45 MHz clock generator I used as a jammer drives the on-chip local oscillator port of the receiver. To equalize the resistance of the local oscillator port and the clock generator, the local oscillator signal of the receiver passes through an impedance matching network.
The local oscillator port, which is the RF input, is connected to the 800 MHz antenna, and the RF output is first sent to a special signal amplifier, which increases the output power of the device by 15-16 dBm. After this, the amplified signal is fed to the output antenna.
The frequencies of the received and sent signals of all mobile phones operating at a frequency of 800 MHz always differ from each other by exactly 45 MHz. So when your cell phone blocker is turned on, anyone talking loudly on the phone will only hear their own voice on the phone because their own signal will be returned to him or her.
You should also remember that this mobile phone jammer blocks the signals of tracking devices that use your car's GPS navigation for tracking and cellular frequency to record the received data, in other words, you can also build a GPS jammer. This suppression device can also be used to prevent the explosion of homemade bombs that are detonated using a signal from a regular cell phone.
In this device I used a 600 MHz frequency converter, having previously improved it.
There is no escape from using an RF amplifier, despite the increased power consumption.
I took old aluminum packaging and made a case out of it, and used old VHF connectors from a Motorola phone for input and output.
I soldered the VHF connectors to the chip used.
I used a voltage regulator and a 9V battery to power this mobile signal suppressor. The battery was separated with foam from the rest of the device.
I installed an on/off switch on the case, and screwed the antennas to the VHF connectors (they, by the way, are from the same Motorola).
That's it, your cellular blocker is ready!
Instructions
Buy a regular signal jammer; these can be purchased at radio equipment sales points in your city. Find out the frequency of the waves you need to suppress and program this device. These could be various navigators, antenna signals, radios, telephones, and so on.
In order to assemble the jammer yourself, use the following diagram: http://samodelnie.ru/skhema_glushylki.jpg. In this case, you can suppress any television and radio signal within a range of up to 10 meters. Please note that very powerful signal suppression devices can damage equipment.
When assembling a signal suppression device yourself, please note that the loop coil L1 should not be on the same axis with the inductor L2 and should be removed at a distance exceeding 2 centimeters. As an antenna, use a piece of wire 20-40 centimeters long.
When setting up, it is best to have a dielectric screwdriver in your tool kit. The inductor in this case should have about 10 turns, and the wire should have a diameter of 1 millimeter. Its frame should be 10 millimeters, and the choke should be wound around an MLT 0.5 resistor. Its rating is 100 Ohms, and the wire should have a diameter of 0.1 millimeters (100 turns).
When using this device, please note that if you use it to interfere with someone else's equipment, you may be subject to legal action. If your neighbors are disturbing your sleep with a loud radio or TV, use the legal means available to respond: just call the police. According to the legislation of the Russian Federation, it is unacceptable to violate the silence regime after 23:00 in the evening. If you are sued for using a jammer, you will not only be required to pay a fine, but your equipment will be confiscated.
Video on the topic
note
There is a fine for using such funds.
There is nothing difficult in assembling a phone, but only if during disassembly you did not damage any of the parts of the device, in which case it is best for you to contact specialists.
You will need
Instructions
Disassemble your phone by first turning it off and removing the battery. Unscrew all visible fasteners, pull out the special plugs and unscrew the bolts under them; this is very often found in clamshells. After that, proceed to open the phone case. Pry it on one side, and then on the other. Try to use less force as you may break the housing mounts.
Please note that some phone models can be held together using special glue; here you will need a mild knife or a thin flat-head screwdriver. Place the phone on its side in a stable position (it will be better if someone helps you), place a screwdriver or knife along the line of connection of the parts of the phone case and lightly hit the tool with the palm of your hand, as soon as you feel that the phone opens, separate the parts using the knife.
After opening the case, remember the order in which you disconnected the phone parts. Try not to damage the connections between the wires and cables of the screen and the microcircuit. In order to remove the circuit, unscrew the bolts, usually located on the sides and in the center. Be careful, if your phone has Wi-Fi functionality, it's best not to disconnect the modem unless absolutely necessary. The same applies to the phone camera.
Be careful when removing the speaker - it is usually soldered to the internal circuit board of the phone, so during reassembly you will have to somehow restore its position. Remove the keyboard, disconnect the fastenings of the remaining internal elements of the phone.
Reassemble the phone in reverse order. To better remember the sequence, record a video of the disassembly, or simply write down your actions on paper.
Video on the topic
Helpful advice
Do not use regular kitchen knives to open your phone.
Assembling any phone is carried out in the reverse order of the procedure for disassembling it. Before disassembling your mobile device, read the terms and conditions specified in the warranty card, and also read the technical documentation regarding your model.
You will need
Instructions
Prepare the work surface in such a way that it is convenient for you to disassemble the phone without losing its small parts, and also so as not to damage the internal devices. Choose a screwdriver that is sized to fit the screws on your phone, because if it is larger than the sockets of your phone's screws, you may damage the fasteners and then you will have to replace them.
If you have a camera with a video recording function, record the disassembly process so you don't forget the sequence later. If you do not have this opportunity, simply write down the process step by step on paper and sketch the device connection diagrams, if necessary.
Turn off your phone, open the battery cover and remove the battery. Take out the SIM card and removable storage. Unscrew all the existing screws from the back wall of the phone; note that in some models they may be hidden under special service stickers. After this, carefully pry off part of the body of your mobile device using a flat-head screwdriver or a mild knife, or best of all, use a plastic card.
If necessary, carefully detach the camera from the back of the case. After removing the phone case, carefully examine its contents. Unscrew the chip, disconnect the phone's keyboard, and don't forget about the side buttons for locking the device and adjusting the sound level. Remove the keyboard buttons by pushing them in from the outside.
Reassemble your mobile device in the reverse order, paying attention to the size of the screws matching the threads of the case. Be sure to secure the screws on the internal devices of the phone to prevent them from breaking the next time your device is dropped. Insert the SIM card, replace the removable drive and battery. Close the phone cover and check its operation.
Video on the topic
Helpful advice
Before disassembling the phone, cover the surface with a light cloth so as not to lose small parts.
If you're tired of the noise your neighbor's radio makes, or you want your child to turn off the radio and sit down to do his homework, you might want to mute or reduce the signal reception. The person will turn off the receiver himself.
Instructions
Take the KR555LA3 microcircuit and solder the signal jammer using a soldering iron, tin and solder on it. Use the diagram below. Use 2 batteries of 1.5 each as a power source. This device will perfectly drown out any signal.
Try purchasing and using a portable stun gun. The stun gun easily creates quite powerful interference. However, they are not directional in nature, and it is difficult to constantly activate its work.
Try using a noise generator from a simple electric lighter for a gas stove. It, like a stun gun, creates strong interference, covering a wide range of radio frequencies. An ordinary radio becomes practically useless. It also has a non-directional effect and also has a very strong effect on the entire electrical network. Thus, you will interfere with all your neighbors, and your television and radio will not have good signal reception. Use caution as electric shock can be very unpleasant. You can screw a regular wire to the lighter, which will act as a transmitting antenna.
A portable signal jammer can always be made from a regular gas lighter with a piezoelectric element. The disadvantage is that you have to press the button constantly. To enhance the effect of this electrical noise generator, attach a piece of ordinary wire to one of the electrodes that are located next to the piezoelectric element. The interference will not be strong, but the constant clicks that will be heard through the radio speaker will force it to turn off.
Cell phone jammers, as cellular signal suppressors are commonly called, are an affordable and reliable tool with which you can prevent the leakage of information of varying degrees of significance. In the modern world, a variety of tracking devices have become all too common, making it very difficult to maintain the secrecy of commercial and other information not intended for public review. Mobile phone jammers were created specifically to ensure confidentiality and non-distribution of important data.
Cell phone jammers are also designed to maintain the established order of stay in certain public places: libraries, theaters, cinemas and many others, where visiting rules establish the absence of unauthorized sound signals. "SpetsTechConsulting" offers everyone interested in suppressing cellular signals to purchase mobile phone jammers in various modifications. The cost of the equipment we offer to suppress the signal of cellular operators varies depending on their technical level and capabilities.
Cell phone jammers operate on different frequencies. They can create noise that interferes with the operation of mobile communications. Depending on the power of the noise generator, the range of the equipment to block the signal of cellular operators changes. The more powerful the generator, the more space will be blocked. There are cell phone jammers for use in cars and for rooms of various sizes. Some modifications of the equipment offered by SpetsTechConsulting to suppress the signal of cellular operators can also effectively block data transmission via Wi-Fi.
In the online catalog "SpetsTechConsulting" you can find equipment for blocking GPS signals. For example, the GT-13C model, which belongs to the compact devices from the series of portable jammers. This device, thanks to its external resemblance to a mobile phone, small size and modern design, without attracting too much attention, can provide freedom of movement to its owner by blocking the GPS signal.
Modern cell phone jammers have many modifications and provide various opportunities to their owners. If you are considering the possibility of purchasing a mobile phone jammer, but have not yet decided which one would be optimal to purchase, contact the specialists of SpetsTechConsulting, who are able to advise on a professional level and provide comprehensive assistance in choosing the optimal equipment for implementing a corporate and personal security system. Using modern capabilities provides many benefits to prevent information leakage of varying levels of significance.
With the advent of mobile phones, communication between people has become much easier. Mobile phones allow you to save a huge amount of time, quickly resolve important issues and simply maintain pleasant communication with a loved one who is at a distance. However, thanks to various spy devices, a personal mobile phone can turn from a faithful assistant into a source of constant leakage of personal information, which can lead to serious problems.
Nowadays, in order to become the owner of a device that listens to mobile phones, it is not at all necessary to be a special agent or intelligence officer. Anyone who wants he can buy bugs both on the Internet and in specialized stores and install them anywhere.
Fortunately, protect your personal information and phone against illegal intrusion is quite simple. To do this, you need to have cellular jammers and jammers for GSM and GLONASS signals. Fortunately, in order to protect yourself, it is not necessary to buy such devices. Experienced radio amateurs are quite capable of assembling devices that suppress cellular signals with their own hands. We will talk about how telephone signal jammers work, what they can do and how to make them yourself in this article.
GPS and GSM communication jammers operate on a fairly simple principle. When telephone signals enter the jammer's range, interference occurs, blocking the ability to receive and send calls from mobile devices.
GSM and GLONASS jammers signals, in turn, work on a different principle. They scan frequencies looking for a specific signal, and as soon as it appears, the device begins to interfere and block the signal.
The operation of GPS and GSM jammers is primarily distinguished by their range. The simplest signal suppressors work within a radius of 10 meters and will only be effective in a car. More complex devices are designed for a range of 50 meters. This is quite enough to protect yourself from “bugs” in large rooms. There are also devices, allowing you to jam signals within a radius of several kilometers, but such equipment is used exclusively by special services.
The signal suppressor installation diagram is very simple. You need to screw the antenna into the connector of the device and turn it on. After turning on, the device will silence all detected signals within 10 seconds. The signal blocker is able to work both online and offline. It can also be easily charged using a car cigarette lighter.
Sometimes a situation arises when, when turned on, the suppressor of telephone, GSM and GPS signals does not work well, does not find the necessary frequencies or something similar. This happens when mobile operators use other frequencies. In order for the device to pick up all frequencies, you must perform the following steps:
· To adjust the purity, use a screwdriver to tighten the trimming resistor on the microcircuit.
According to the Law “On Communications”, which operates in our country, any devices that suppress signals from mobile phones or other devices are required to be certified and registered. And if a certificate can be obtained from sellers upon purchase, then you need to register the device yourself. In case of non-compliance with the rules of the current law, violators face a fine, and the use of the device is considered illegal. Although it is worth noting that people are very rarely brought to justice for the illegal use of such devices, and even when it comes to saving personal information, the risk is justified in such conditions.
Install bugs and listen to your phones maybe even schoolchildren. It is very easy to purchase listening devices on the Internet. But basically, the use of “wiretapping” is usually resorted to by law enforcement officers who want to get dirt on criminals, influential businessmen who want to eliminate competitors, jealous husbands who suspect their wives of infidelity, and so on. Therefore, in order not to become a victim It is necessary to protect yourself from information leakage using signal suppressors.
On the Internet you can find quite a few different schemes with the help of which you can construct an effective suppressor of GPS and GSM signals yourself. The most common telephone signal jammer operates at 800 MHz. Since most mobile phones are tuned to this frequency. Despite the simplicity of the operating principle of the device, its independent assembly requires certain skills.
In order to make your own home suppressor of GSM and GPS signals, you need to take a synchronous signal generator with a frequency of 45 MHz, to which the local oscillator port responds. As a result of this, interference appears. Next, the antenna on the generator is tuned to a frequency of 800 MGC. After this, the RF output is connected to the amplifier, due to which the power of the device increases to 16 dBm. Next, the already amplified signal is fed to the device’s antenna. The final stage of self-assembly of the device is considered to be a self-made case, into which the battery is installed, and a switch is also created. In general, a finished signal suppressor will consist mainly of:
A diagram of one such device is presented below:
From the above, it becomes clear that a cellular jammer in the modern high-tech world is a very useful device that will help save personal information and protect you from a huge number of unpleasant situations. It is very easy to purchase such a device today., and if you are also an experienced radio amateur, you can easily assemble such a device yourself.
