dojammer's blog

Today's society is the era of the Internet. Mobile surfing and playing games have become the norm. Sometimes, there have been cases where high-tech communication equipment has been used to eavesdrop on the meeting. In some particularly important venues, especially when the company needs to communicate with the other party during meetings and cooperation, it is very worried that someone will use a mobile phone or other high-tech equipment to eavesdrop and record, causing information security leaks. In today's developed life, people often think that we all think that discussing something important with others, but we are worried about the other party's recording, and the other party is also worried about my recording, which is harmful to us. How can we avoid these meaningful conversation information from being stolen by others?

Everyone treats each other sincerely, and there is also a very old way, that is, the two sides talk in the bathroom, so that both sides chat while taking a bath. Both sides take off only a short shorts. In addition, the short shorts are also soaked in water. It is almost impossible to carry a wiretap and other equipment. You can talk about things confidently. According to the current recording technology strength, recorders and equipment may avoid water, and under the control of the water environment, there is generally no recording effect.

Communication technology has been very developed. All conversations between people may be recorded. When both parties discuss very important confidential matters, they are somewhat worried about being recorded by the other party. Choosing a bathroom as the negotiation location is a good preventive measure. Men and men are suitable for negotiations in bathrooms; women and women are also suitable for negotiations in bathrooms; men and women are also suitable for negotiations in bathrooms. It's just that there are no bathrooms in many places, but there are generally bathing places. Talking about important things in the bathroom can also be used as a place to avoid being recorded by the other party.

In addition to these folk remedies, you can also use anti-eavesdropping software-signal jammers. By transmitting ultrasound waves containing random noise that cannot be perceived by the human ear, when using electronic digital products, this noise and the sound of ordinary conversations are captured in the digital product together, making the recorded audio invalid, and the audio information in the video has the same interference effect. And because the noise with ultrasonic noise is random and cannot be restored. Therefore, the audio after interference cannot be restored, which fully ensures that the original information will not be exposed and spread.

The cell phone signal jammer has high interference intensity: the ultrasonic noise optimization algorithm developed by us based on FPGA can effectively interfere with mobile phones, voice recorders and other digital products, can capture the noise, and completely avoid the harsh sound that only a few people can hear. The interference distance is far: the anti-recorder has an interference distance of more than 2 meters for 95% of mobile phones, more than 5 meters for 60% of mobile phones, and 10 meters for notebooks such as iPhoneX and iPhone8, which can effectively protect the content of conversations.

Contraband cell phones are a real problem. They allow inmates to secretly process meth, run illegal businesses and even organize murders, right under the radar of guards and prison wardens. One prison in South Carolina recently detected 35,000 cell phone calls and text messages in a 23-day period. This is a very significant problem for prisons.

A further problem is the ability of inmates to communicate with witnesses before an upcoming hearing, trial or indictment. By matching alibis or correcting inconsistencies in testimony, defendants can get charges waived or dismissed entirely. The concern that prisons feel is that the use of cell phones by inmates is not detected, so that inmates can be caught before a surprise search that could confiscate cell phones, knives, meth, needles and other contraband. This contraband could be life-threatening to prison officers and medical staff.

A cell phone in the possession of a flash inmate allows him to communicate with outside partners in crime to coordinate escape plans, thus creating a life-threatening situation for the prison's guards and the public, More commonly, reports from correctional facilities overwhelmingly indicate that hidden cell phones are used to harass victims of their crimes, or an inmate repeatedly threatens his victims to persuade them to drop charges or change a person's story to convey discredited testimony. Many inmates continue to run illegal drug operations from behind prison walls. Cell phones are a primary way for inmates to keep drug operations running and under tight control. By contacting them before visitors arrive, inmates can arrange to move methamphetamine and drug paraphernalia, allowing them to continue their illegal habits of being incarcerated. This family is often harassed by the inmate's family members, who demand parole when they learn that the family members are getting faster service while in custody.

Prisons have tried and failed to prevent cell phones from entering prisons. If there is no way to prevent cell phones from entering prisons, regular cell phone use by inmates must also be prevented within prison structures. Prison signal jammers have become an essential supplement to the prisoner protection system. Cell phones are shrinking every day, making it easier for prisoners to smuggle into the facility, which is a more difficult task for correctional officers who have been exempted from heavy responsibilities. However, cell phone jammers are a weapon that restricts prisoners from using cell phones for potentially dangerous activities. Using cell phone jammers can also force prisoners to use phones approved/supervised by the prison.

1. What is a GPS jammer?

The GPS signal jamming system is designed to suppress the signals of the satellite navigation GPS system in the 1500-1600MHz range. The screen prevents GPS satellites from detecting all positions and positions of the vehicle through GPS, and the GPS jammer equipment will not interfere with mobile phones and other equipment. The GPS jammer range can be from 5 to 15 meters, which is enough to reach vehicles and buses, as the trackers are usually installed in the cab of the vehicle. After the mechanical equipment is connected according to the vehicle borrowing device, it immediately starts working and generates wireless noise (interference) in the range of 1500-1600mHz (L1/L2) within a radius of 15 meters.

Second, there are various types of GPS jammers.

1. For GPS positioning and navigation system, you only need a GPS jammer.

2. Dual-mode navigation: Internet precise positioning (mobile phone data signal precise positioning) navigation + GPS navigation. For this kind of navigation, you need GSMGPS Jammer.

3. Internet precise positioning (mobile phone data signal precise positioning) navigation. So you need a gsm jammer.

4.COMPASS system software, GLONASS system and Galileo system software.

234 These three systems are rarely used for civilian purposes.

3. Car GPS Jammer

GPS devices will all need a number card. The location information calculated by the GPS module is submitted to the mobile phone positioning server by the base station through this card for users to view. The jammer uses wireless radio waves to interfere with this card. The communication between the card and the communication base station ensures that the location of the GPS cannot be viewed by users.

4. Principle of GPS jammer:

Mainly by emitting wireless interference electromagnetic waves, it can invalidate the GPS locator within a specific radio band, creating the same magnetic induction environment as the device to achieve the purpose of blocking signals. Two ways to block GPS signals. 1: Immediately disconnect the two cables of the GPS server. Second: Go to the Electronic City to buy a GPS signal jammer, but you must first understand what signal tracking method the GPS in your car uses. There are only two methods of signal tracking: (1) Cell phone signal. (2) Immediate communication satellite tracking data signal.

Generally, most GPS tracking signals use mobile phone signals. GPS jammers also have an interference effect on vehicle navigation. The GPS used for vehicle navigation is the same as mobile phone signals and is easily affected by electronic interference. The signal The jammer can block all signals in a certain area, causing any communication equipment within the range to lose signals. However, such equipment also has disadvantages for the person who uses it. The signal jammer can only be turned on temporarily and cannot be turned on all the time for use. As long as he turns off the jammer, the GPS signal will be available again.

Today, I will talk to you about whether signal jammers can effectively shield 5G network signals? This topic discussion will help everyone have a more comprehensive understanding of signal jammers. Below is a summary of some professional knowledge about signal jammers.

1. In addition to the 5G Internet signals that have been popularized at this stage, the commonly used Internet signals in mobile communications technology include the 3G network signals that became popular in the past two years, and the 2G network signals used by some elderly mobile phones. Although 5G network signals have become a concept discussed by many people now, it will take some time before 5G Internet is widespread.

2. First of all, it is clear that cell phone signal jammers can block 5G Internet signals. The mobile phone works within a certain frequency range. The mobile phone and the communication base station are connected through electromagnetic waves, and the data and sound are transmitted at a certain serial port baud rate and deployment method. For this kind of communication principle, the cell phone signal jammer transmits the low-end frequency of the wireless channel to the high-end scanner at a certain rate during the working process. This scanning rate can cause error code interference in the packet signal received by the mobile phone. The mobile phone cannot detect any normal data sent from the base station, making it impossible for the mobile phone to establish a connection with the base station. Mobile phones are mainly characterized by conditions such as searching the Internet, no signal, and no security system.

3. Regarding the shielding of 5G Internet signals, the key is to look at the frequency of the support point of the selected signal jammer. The current 5G frequency range is very wide, from 800M-2. 5G, if you want to shield the 5G signal, it depends on the frequency you use. How much network bandwidth can the jammer support? Because some 5G frequency bands almost overlap with WIFI 2.4. Once you block the 5G signal, WIFI and Bluetooth in the blocked area may not work properly. Therefore, whether the 5G signal can be blocked first depends on the function of the jammer product, and whether the device has a 5G signal shielding control module.

GPS locators have long been an indispensable fixture, whether determined as property in the course of business, or part of a home. However, the increasing use of these devices by consumers has given hackers more reasons to tamper with the system. Obviously, all potential interference with the way such a device operates will greatly undermine its performance.

GPS monitoring systems are primarily used for real-time location tracking, for monitoring property and family. For many years, monitoring devices have been used to carry out legal missions, including rescue missions, monitoring sex offenders, or monitoring criminals on bail. In addition, it can also be used to accurately locate and protect fleets. The device helps fleet managers to protect their vehicles and, in the event of theft of a person's property, ensures quick recovery, giving the company the opportunity to receive lower insurance premiums. In fact, these tracking devices have been used to check the whereabouts of their partners in order to catch potential cheating behavior.

For this reason, of course everyone has to deal with GPS interference to ensure that their equipment is always working properly. However, the irony is that GPS monitoring systems can potentially harm your own safety as much as it does your security. GPS jammers can be very effective if terrorists can get hold of key locations of government assets, or even if a wife tries to catch her cheating husband.

GPS Jamming Devices and Other Signal Control Devices

The various methods of jamming or interrupting GPS signals will also depend on the type of surveillance device used. The most direct way to avoid being tracked is to destroy the GPS device and make it inoperative. But if the intention is to secretly falsify it without the knowledge of the installer, then it is very easy to block or weaken the transmission of the tracking device by using these devices:

1. Metal shield

This is also a cheaper option. Simply enclose the tracking device with any metal covering, such as brass mesh or lead film shield. It is reported that the wizard uses refrigerated trucks to transport cars equipped with GPS search equipment to avoid being found.

2. GPS Jammer

GPS jammers are mainly sold online. Plug it into a 12v adapter in your car and it will now destroy the GPS signal in a certain area.

3. Cell Phone Signal Jammer

This device is a cell phone jammer, which means it prevents cell phone use. If an automatic tracking device is used, this jammer will prevent the wireless tracker from pushing real-time location updates.

Use high-power 5G jammers to achieve high power gain in the room

There are many online shopping malls selling signal jammers, such as cell phone signal jammers, GPS mobile phone signal callback functions, Wi-Fi signal blockers, UHF signal jammers, and other types of signal blockers. But now we rarely find a full-featured signal blocker that can block 5G signals and is suitable for indoor use, with strong sound spacing. If you need to get this kind of signal blocker, you can come here and get one you like.

Since many 5G cell phone signal blockers can block 5G mobile phone signals, of course we can't see the details of the high-power 5G jammers used in all rooms. The best way is to take an example and then look at the details of the 3G4G5GWimax signal callback function used in this room. Its full name is "70W high-power 3G4G5GWimax mobile phone signal".

Soon you will know that this high-power signal blocker design has 5 antennas and this high-power jammer design is dedicated to blocking CDMAGSMDCS/PCS3G4G5GWimax signals, so that the mobile phone signals in these frequency bands can be blocked and lose the function of sending and receiving information, so that this indoor 3G4GWimax signal callback can play the role of a security tool. In addition, due to the high power of 70W, the shielding radius of the jammer can reach 100 meters, which actually depends on the reception sensitivity in the given area of ​​the omnidirectional antenna design, which is very strong and can meet the current requirements.

With high power, this 5GWimax mobile phone signal jammer design has a good thermal conductivity system, which can easily achieve the goal of 24/7 continuous operation provided by the AC adapter, so that people who need it can easily achieve their goals by using indoor 3G4G5GWimax signal callback. In addition, adjustable buttons have also been used in this room, so this high-power adjustable 3G4G5GWimax mobile phone jammer allows users to decide the interference distance and interference radius according to their actual situation.

There are three categories of GPS jammers:

(1). GPS jammer, which blocks satellite signals (which, in turn, creates noise in communication satellite frequencies). The signal is always transmitted to equipment located on the road (or above) at two key frequencies: the GPS frequency (civilian L1 frequency band used to locate trackers) is 1575.42MHz. Frequency GLONASS (civilian L1 frequency band, used to locate trackers): 1602MHz. Because the frequencies are so close, they are blocked by broadband network noise generators, requiring only a wireless antenna.

(2) GSM jammer, which will have an impact on communication operators. Operators work under different rates, which actually lies in the mode (3G, 4G) and standard (GSM, DAMPS, CDMA). This way, many wireless antennas can be combined onto a single blocking device, thus shutting down all the wireless antennas so they can be separated.

(3) Universal jammer. It applies to all frequency bands, such as communication operators and satellite signals. It has several wireless antennas used to create an impact within a selected area. It also often gives the possibility of selective operation, that is, the ability to generate noise only at selected times (such as only the scope of the cellular radio module GSM1800).

When the GPS device was established, it was particularly popular among militants and government agencies. As everyone knows, GPS has become more and more widely used in daily life. In addition, GPS can protect the safety of your family and friends by tracking their real-time location and marking it on a personal map. Therefore, parents can search their children's parts anytime and anywhere. The production process of some processing plants is realized based on GPS equipment. However, GPS applications also have negative aspects. Warlocks and other criminals use GPS to carry out illegal activities: tracking other people's body parts without their permission.

If you feel like someone is tracking your location, we've got you covered with tools like GPS jammers. You can also record every minute of your personal session and mark your locations. Therefore, when you want to ensure that you and your personal privacy are protected, a GPS jammer is what you need. Using this device, no "adversary" can harm your privacy.

GPS blocker is specially designed to prohibit the use of GPS to block data signals. The jammer can be used to block various GPS tracking devices and block satellite tracking communications. It should be noted that the GPS jammer will not affect the mobile phone signal. This type of obstruction is particularly easy to put on because it is small and lightweight. In addition, you can also use an external rechargeable battery as a switching power supply or vehicle switching power supply.

In such a modern society, the use of GPS and mobile phone signal tracking devices has become a common presence in our daily lives. In order to protect your life and privacy and avoid being tracked by GPS and mobile phone signal tracking systems, the ideal way to deal with this phenomenon is to have these facilities to lock its capabilities. This wireless 3 antenna 5 stock band portable GPS mobile phone jammer is the good product you are looking for.

With the improvement of our living standards, most people are more and more concerned about their lives and privacy. With more and more signal tracking devices entering the modern world, we must take action to compete with these tracking devices. This GPS mobile phone jammer can help you and can become a good helper. In order to enjoy a better quality of life, all types of jammers are an indispensable part of life. We should use jammers to protect our privacy and keep our lives from the influence of such a modern society.

First of all, this handheld GPS cell phone signal jammer has a strong jamming ability, with 3 antennas, but can block 5 frequency bands. The purpose is to block GPS and CDMA GSM DCPCS signals at the same time. The 10-meter shadow radius is based on the reception sensitivity of the given area.

This mini handheld mobile and GPS jammer is not only enough to block cell phone signals, but also GPS signals. Therefore, you can also enjoy a quiet life, and at the same time, you can enjoy a high-quality life without being tracked by others. This jammer can also protect my family and friends. More importantly, with the mini portable design, you can freely use the mini compact design. This cell phone and GPS signal jammer provides more convenience for our daily life. You can also send it to any place you need. You can also use it at any time. In addition, this 5-frequency band portable jammer can also create a quiet environment for you at the same time. Just use it, and the mobile phone will lose the function of sending text messages and making calls in a distance.

In modern society, cell phone signal blockers are often used in large and medium-sized examination halls, and are also widely used in gas stations, financial institutions, hospitals and national defense areas. As long as there is a sign prohibiting the use of cell phones, there is generally a cell phone signal blocker. So how should you use the cell phone signal blocker? What is the basic principle of the cell phone signal blocker?

When using the cell phone signal blocker, select the area where the cell phone signal needs to be disconnected, and put the disconnector on the local desktop or wall. After the installation is successful, connect it, disconnect the power supply, and immediately turn on the main power switch. After the device is connected, press and hold the main power switch to disconnect the appliance and it can work. At this time, all cell phones on the scene will be in a network search state and will lose the signal of the communication base station. The cell phone is specifically manifested as searching the network, no signal, only service system, etc. Even the calling member cannot establish a normal voice call, give full play to its role, and complete the cell phone signal blocker.

For paper application methods, it can be used. cell phone signals are within a certain frequency range. After the cell phone and the communication base station are connected by electromagnetic waves, data and sound are transmitted in a specified serial port baud rate and in a coordinated manner. If the cell phone is blocked, you will not be able to make normal calls.

When using cell phone shielding, it is best to purchase some professional cell phone signal shielding equipment. Professional hardware configuration cannot be achieved by some simple systems. In areas where the magnetic field or electromagnetic field is abnormal, it will have a certain effect on the cell phone signal. The built-in cell phone flight mode in the cell phone is also a convenient cell phone signal method for users to reach some places where cell phone signals are not allowed to be generated.

In the past two years, various types of cell phone signal blockers have been varied, which makes people dizzy and overwhelmed. However, not all products are suitable for people to use. Some products are common, so they are not suitable for people to use in other industries. There is a very special blocker, which also appears in front of people. It is called wireless signal blocker. So what are the advantages of this kind of product?

When we use wireless signal blockers, you will find that no matter where we are, as long as we can turn on such a blocker, no one can find our network signal. In other words, household products are more effective than general public products. In such an environment, we can easily block all data signals. However, if we use a public type of blocker, you may also have the problem of unstable shielding effect. Therefore, we need to understand the actual application effect.

What are the advantages of wireless signal jammers? The following are the four major advantages of wireless signal jammers:

1. Wide application occasions

Wireless signal jammers are mainly used in examination venues, but not limited to examination venues. They can also be used in prisons, gas stations, to prevent mobile bombs, petrochemical plants, gas stations, detention centers, interrogation rooms, people's courts, labor camps, conference rooms, cinemas, churches, libraries, school dormitories, special security and confidentiality places (customs offices, reception halls, mobile vehicles, mobile political and business dignitaries protection sites), etc.

2. Strong purpose

Wireless signal jammers can be mainly used in the national college entrance examination, domestic postgraduate entrance examination, adult examination, self-study examination and various college examinations, as well as various junior high schools, vocational high schools, vocational high schools, prisons, detention centers, conference rooms, etc., to prevent the negative effects caused by cheating with cell phones, sending text messages indiscriminately, communicating with people outside the prison, collusion, etc.

3. Shielded signals are diverse

Effectively shield GSM/CDMA/DCS/PHS/TD-SCDMA/WCDMA/WIFI/TD-LTE/FDD-LTE.

4. Model advantages

1. Adopt high heat dissipation aluminum alloy housing, low operating temperature, and more stable shielding effect.

2. Built-in silent fan, low noise during operation.

3. Independent adapter. 12V/24V DC power supply system operation, convenient for vehicle-mounted mobile operation.

4. The external antenna design, unified one-end socket makes the appearance more beautiful and appropriate. And it has an anti-drop transmission design, and the antenna and the server have a marking working frequency band for easy one-to-one correspondence.

The rapid development of smart phone Wi-Fi networks has a great effect on improving the speed of development. Mobile phones can solve network problems. Mobile phones play a more important role in our daily lives, mobile communications and mobile Internet. In other aspects . It is because of this that it creates many problems, especially in the Internet, children are addicted to Internet technology, mainly because of Wi-Fi Internet. However, many people are slowly starting to install Wi-Fi jammer devices to block the Internet in order to control the baby's time.

Although Wi-Fi networks make it easier for everyone to browse Internet technology, the problems it brings cannot be ignored. This is not only a problem of wandering on the Internet, but also a problem of Internet security. In order to maintain a healthy network space, many areas have begun to install such desktop Wi-Fi jammers to maintain network information security in some areas and avoid excessive use of the Internet. This type of mechanical equipment has been widely used in countries and regions around the world, namely in universities, factories, public libraries, libraries and gas filling stations.

The use of Wi-Fi blockers is essential. On the one hand, it ensures the security of the Internet. On the other hand, it can also control the space for children to use the Internet, so as not to indulge in the fantasy world, which is very serious and harmful to their physical and mental health. Wi-Fi transmitter radiation can harm people's physical and mental health and is not suitable for long-term use. You can turn on the WiFi jammer to block WiFi.

The mobile phone security signal jammer only functions for mobile phone communications and has no impact on other electronic products. It is harmless to the body and can be widely used.

1 Various conference halls, auditoriums, courts, public libraries, examination rooms, schools, cinemas, and hospitals;

2 Gas filling stations, gas filling stations, oil and gas fields, and petrochemical plants;

3 Government departments, national defense, finance, securities, prisons, public security agencies or command systems are all places where the use of mobile phones is strictly prohibited.

2.2 Features

1Bochuang Guangguang brand mobile phone security signal jammer is entirely composed of brand-new SMD components and integrated circuit chips. It has excellent performance, is easy to install and use, and can continue to work for a long time.

2 The production process strictly follows the ISO9001 quality management system, and the work is stable and reliable. It is an ideal and trustworthy network security product that improves network information security, ensures production safety and protects the ecological environment.

Implicitly leaving all the isolators activated for a long time is not conducive to environmental protection, energy saving, environmental protection, equipment maintenance, and shortening the service life of the equipment (such as industrial areas, canteens, warehouses, etc., when no one is around at night, etc.) There is no need to turn on the cell phone jammer in these places 24 hours a day);