About the need to use interfering devices in public places

Many people don’t think installing cell phone jammer in schools is a solution, but because children have access to the internet in several other places, such as at home or in open Wi-Fi areas in the city. It’s a very good plan. Adolescents do not have enough maturity to use the Internet properly. From time to time, out of curiosity or under pressure from peers, they may come into contact with content they shouldn’t have. Even if someone accidentally makes such a mistake, it is a very good idea to install jamming devices.

gps wifi cell phone jammers

Apart from basketball, what makes me more happy than sports is being able to watch movies in the theater. This is a rare hour and a half for me to get away from the real world and immerse myself in the fantasy of others. Using a mobile phone in the theater is distracting. Like a drunken fan of sports games, it’s distracting. If you look carefully, a nearby ringing phone suddenly interrupts your thoughts, which is terrible.

If you’re attending an emergency meeting and don’t want to join unwanted calls or messages during an important meeting, you can take advantage of mobile phone signal interference technology. Using 3G / 4G Phone Jammer, this technology allows people to avoid calls and text messages without turning off the phone. When this technology is enabled, the signal from the base station will be blocked directly and you will not be able to communicate with others via your mobile phone.

GPS jammers keep others from knowing your location

The competition with the tablet development industry is very attractive. Since Apple’s famous iPad changed the world of computing, users like IBM wanted to change it in 1981 and get a handheld entertainment device in their hands as soon as possible.

Artificially since the last month of 2011, Apple iPad tablets have been a steamroller among the competitors. According to Apple CEO Tim Cook, their iPad owns 75% of all tablet sales in the United States. According to reviewers and customers, the biggest headache for Apple’s rivals is that no company has developed a tablet that matches the quality of the iPad. When talking about tablets, Apple’s iOS Android is an easy hit.

But now you can ask: how is this information related to GPS tracking? Frankly, tablet competition can change the way these GPS tracking systems work. Take, for example, Asus Transformer. Consistent with some reviewers, this Android-based tablet computer is the iPad’s strongest competitor, with the exception of the Samsung Galaxy Tab model. Asus has developed a great product with a well-integrated keyboard that makes it easy to turn this tablet into a nice netbook.

4g cell phone jammer

Unlike the iPad, and like many mobile phones, the Asus Transformer GPS technology inside the GPS device makes it surprisingly accurate and easy to track your location. But there is a problem. It doesn’t seem to work very well. Asus mentioned customer complaints about embedded GPS in tablets. This can be a bit slow and there is an embarrassing location delay.

So what is the solution? Along the Asus Germany Facebook page, we have developed an update to get GPS satellite signals using the tab Wi-Fi connection. So far, using Wi-Fi to completely replace GPS satellite signals sounds wrong. Wi-Fi signals are not so common all over the world, but signals from GPS satellites can be sent all over the world. Emerging technologies can eventually eliminate this question.

Of course, if you’re very concerned about privacy protection, you can choose the right GPS jammer and simply block the surrounding radio quickly to hide your location.

The future market trend of the shielding device

The State Security Bureau, in cooperation with the Radio Management Committee of the Ministry of Information Industry, Northern Jiaotong University and other institutions, formulated the first industry standard, “Technical Requirements and Test Methods for Mobile Communication Jammers for Security Conferences”. With the guidelines relaxed, experts said the market potential of shielding devices is huge and the industry’s scope for development is extremely wide. At present, the global cell phone ownership has reached 2 billion. It is estimated that the demand for shielding devices is 1% of the total number of cell phones. That is, for every 100 mobile phone users, there is one shielding device user. This user can be It is a safe place, a secret place, a quiet place or a public place or a person.

The shielding system is not only used in high-level places such as arsenals, political parties, governments and military, public safety, finance and trade secrets, but it can also be used in places closely related to people’s lives. Experts believe that based on the latest usage analysis, the cell phone signal jammer market size could reach tens of billions of yuan.

8 Antennas High Power blocker

The rapid development of modern communication technologies requires that companies of technological security keep pace with the times and continuously develop and strengthen their own strengths in order to meet the diverse challenges. The widespread popularity of cellular phones not only brings convenience to people, but also poses new problems for the security and confidentiality of communication. Eavesdropping, leaks, exam room fraud, medical accidents and gas station explosions occur endlessly and accelerate the shielding of cell phone signals. Promotion and use. It is mainly used in exam rooms, prisons, gas stations, cell phone bombing prevention, oil depots, liquefied gas stations, detention centers, interrogation rooms, courts, labor reform teams, conference rooms, theaters, churches, libraries, school dormitories, etc. for security and confidential occasions ( confidential offices, negotiation rooms, mobile vehicles, mobile politicians and dignitaries of companies) etc. as well as cell phone signal jammers are becoming increasingly important in social life.

Depending on the location, Jammer shop has designed and manufactured different kinds of jammers, designed and shielded different places, fully exploited the product performance, and greatly improved the effect of the jammer. It beats the crowd with its excellent performance. And received unanimous praise from the industry!

Within a certain frequency range, the mobile phone and the base station are connected by radio waves, and the data and sound transmission is completed with a certain baud rate and modulation method. The jammer scans from the lower frequency of the forward channel to the upper end at a certain speed during operation. This scanning speed can lead to garbled interference with the message signal received by the mobile phone. The mobile phone cannot recognize the normal data sent from the base station, so the mobile phone cannot connect with the base station and achieve the purpose of shielding the mobile phone signal. The mobile phone seems to be searching the network, no signal, no service system, etc.

Mobile phone shielding device selection guide for examination rooms

By the annual exam season, all parties have begun to prepare for the exam, and the invigilator has various tricks to prevent high-tech fraud. Among them, the shielding device used in the examination room is still an anti-fraud shielding device. However, Chengdu Saiyue Communication reminds that there are many types of shielding devices, and users should clarify their needs before purchasing them to avoid test room accidents due to poor shielding effects, and pay attention to the correctness of the method of use.

First of all, I want to clarify the place of use. Most schools use test room-type mobile phone shields that are suitable for long-term work and are durable. The second is how big are we in the shielded area? For example, if it is a room of 100 square meters or a venue of thousands of square meters, if the area is large, the power must be larger, and if the area is small, the shielding power must be considered small. Then there is which frequency bands need to be shielded. Are all China Mobile, China Unicom, Telecom and CDMA shielded? Still only need to shield part of the frequency band.

Phone Wifi signal jammer

At this time, we remind everyone that if you want to buy a suitable shielding device to achieve the effect, it depends on the method used. The main points are as follows:

1. It is recommended that the indoor shielding device be placed at a height of about 180cm-220cm above the ground, with a forward angle.

2. Whether there are obstructions (such as walls, metal products, etc.) between the wireless jammer and wireless communication equipment (mobile phones, etc.). The interference signal emitted by the jammer will be attenuated to different degrees after passing through the obstruction, please try to avoid it.

3. The weaker the wireless communication signal strength in the use environment, the stronger the theoretical shielding effect of the shielding device.

4. The farther the jammer application environment is from the signal tower, the stronger the theoretical shielding effect of the jammer.

Cheap GPS jammers pose a major threat to drones

Jammers that can be bought for as little as $ 50 threaten commercial drones, but options exist.

With the rotors buzzing and the airframes racing through the air, drones can be very dangerous if flights don’t go as planned. Much has been gnawed about the FAA’s measured approach to implementing commercial drone guidelines, but the fact is there are real dangers, even from bad actors using inexpensive GPS jammer.

phone signal jammer

GPS signal jamming technology is evolving, decreasing in size and cost. These days jammers can be bought online for as little as $ 50. Jamming has long been a threat to military assets and is becoming a commercial problem today as commercial drone shipments become a reality and attacks become ubiquitous around the world. This threat now affects trade, law enforcement, and defense drones on critical missions.

During a choreographed light show in Hong Kong in 2018, 46 drones fell from the sky due to a jamming device. The resulting property damage and loss of hardware is estimated to cost an estimated HK $ 1 million. Almost all drones have security protocols that can be used to send them home or to a safe landing site in the event of a disruption. However, these functions were found to be ineffective at the Hong Kong show.

“These are professional-grade drones already built with technology that will guide them back to the launch site,” Anthony Lau Chun-hon, director of the events committee, told the South China Morning Post. “But the signals were so strong that many of them just fell out of thin air.”

Drones and their services are decidedly dependent on GPS signals. Although the drone may have backup methods (INS / OPS), GPS references are still required for positioning, navigation and stabilization. GPS attacks are therefore the easiest way to shut down a drone and potentially cause harm to life and property.

The good news is that solutions for drones are arriving with commercial quality and coming straight from the defense sector. One comes from a company called infiniDome, which makes a device called a GPSdome that is built into a drone’s GNSS receivers and uses a unique interference filter system that combines the patterns of two omnidirectional antennas. GPSdome analyzes the interference signal in real time and feeds its properties into infiniDome’s proprietary algorithm to filter and reject attacking RF interference, so that the UAS continues to rely on GPS signals during a jamming attack. If an interference signal is detected, the GPSdome notifies the operator of possible signal interference.

Easy Aerial, a leading provider of autonomous, drone-based surveillance solutions for commercial, government and defense applications, recently added GPSdome to its range of autonomous unmanned aerial systems for military use.

“We chose GPSdome because it was a proven solution that was a perfect fit for the various missions our customers routinely fly in some of the most inhospitable and hostile environments in the world,” said Ido Gur, Co-Founder and CEO of Easy Aerial. “While our systems have multiple redundancies on board, GPS signals for maintaining position, navigation and timing accuracy are critical to ensure uninterrupted operation.”

This type of lightweight, small form factor, low power shielding technology is a critical step towards widespread adoption of commercial drones. Other companies like Sepentrio also take GPS interference in drone applications with integrated sensor solutions seriously.

It is certain that the problem of GPS interference and spoofing will receive more attention in the coming days. Fortunately, developers seem to be beginning to see tools that they can use to counter the growing threat.

Outdoor Cell Phone Jammers Can Protect Personal Information

As one of the most populous cities on the planet, the official government of Beijing, China will soon start tracking the daily activities of all 17 million people living here by tracking the location of their cell phones. The government has presented a new plan to help reduce traffic congestion by providing detailed information on civic activities around Beijing. The plan is called “Real-time Citizen Sports Information Platform” and will use a person’s cell phone, local cell phone tower and GPS tracking module, which has become a standard module for almost everyone. modern smart phones. Each mobile phone will transmit GPS information to the server, which will provide authorities with unprecedented amounts of data to record the whereabouts and current trajectories of anyone in the Beijing area. For some people with ulterior motives, they may sell privacy for profit, but the various Phone GPS jammer launched by jammer-mart.com may prevent others from monitoring. Critics of the plan say it is another government cover-up effort to restrict individual movement and prevent large crowds from forming on the streets. Their opponents say the data will provide law enforcement with accurate maps to show where large crowds gather, allowing the government to send emergency personnel to public protest venues.

Portable Hand-held GPS Jammer

According to Chen Derong, professor of wireless communications at Beijing University of Posts and Telecommunications, the mobile tracking system is not designed to monitor traffic. He said traffic monitoring does not require tracking the activities of individual people. “We are discussing two completely different ideas. The positioning of the mobile phone is a matter of personal privacy. If you want to understand this flow of traffic, you have to install cameras at the intersections,” he said of it. “Why shouldn’t they know personal information like my current location to avoid traffic jams or the like? Traffic and location tracking is as inappropriate as putting a horse’s mouth on its head of a bull. ” Criticism The author also claimed that the plan to follow up on all activities of the people of Beijing was a response to a large-scale protest in China in 2011, which was successfully mobilized via social media. According to a New York Times report, the protest was aimed at making people shout: “We want food, we want jobs, we want homes and we want fairness,” calling on people to take concrete action to try jazz. Take advantage of people’s dissatisfaction with inflation and rising house prices.

This occasion, along with the continuing domestic unrest caused by the rapid spread of large-scale protests in Middle Eastern countries, has led to unrest within the Chinese government. Authorities arrested the activists and placed more than 80 people under house arrest. Since then, others have disappeared. The follow-up plan was provided by the Beijing Municipal Science and Technology Commission, and officials avoided mentioning the system’s use as a law enforcement tool. Li Guoguang, an official with the Municipal Science and Technology Commission, said the plan “will provide information on the distribution and movement of urban populations with incredible precision.” It is assumed that the program was created in cooperation with China Mobile, a mobile phone provider in cooperation with the Chinese government. Li calculated that 70% of Beijing’s citizens carry cell phones, allowing their government to track all activities of 17 million people with great accuracy. Therefore, if you live in Beijing or plan to visit and use a local mobile phone, you may want to consider keeping your location private. To make it a reality, you can use a cell phone jammer to prevent the Beijing government from tracking your smartphone, so it should always maintain the privacy of the location.

Cell phone jammers set the time online

Most lawyers believe that schools can at least prohibit the use of cell phones under certain conditions and circumstances. However, this must be done within an appropriate framework. On the other hand, a ban that goes beyond this scope and prohibits the wearing of cell phones only is largely viewed as unacceptable. First of all, it is widely believed that schools cannot make their own rules at will. You must provide a legal basis for this and follow the principle of proportionality. The school laws of the federal states form this basis, but most of them only have general requirements: the schools can specify measures for the fulfillment of educational and teaching tasks in the school regulations. This can also include restricting cell phone use. This is a common quarrel between related employees: To what extent can a cell phone signal jammer be used to ban cell phones, and what happens if it is violated? Since the ban on the use of mobile phones can also affect the basic rights of students, such as B. Free personal development and property rights, it must be proportionate. In addition, parents may have legal rights so that they must also be taken into account when contacting their children via mobile phones. It has to be proportional. In addition, parents may have legal rights so that they must also be taken into account when contacting their children via mobile phones. It has to be proportional. In addition, parents can have legitimate rights and interests, so that interest must also be taken into account when contacting their children via mobile phones.

4G Mobile Signal Jammer

At the moment, the obvious trend towards the lawyers’ control over the use of mobile phones is barely discernible: For example, the Baden-Württemberg Ministry of Education considers it sensible to ban the use of mobile phones during breaks. However, as long as individual regulations can be formulated appropriately according to educational requirements, this depends on the school.

Special Circumstances for Formal Exams: Wearing cell phones may be prohibited and formal exams are usually more stringent. For this reason, students are usually required to leave their cell phones at the teacher’s desk or elsewhere, and the cell phones they carry can be viewed as a sham. This also depends on the personal circumstances and the detailed provisions of the school and examination regulations as well as the federal school laws. For schools, “primary evidence” may be enough to deceive others. This means that the school can try to deceive if the student’s behavior shows typical characteristics. If the student does not agree, he has to prove that his case is atypical – that is, even if the case appears to be true, he has not deceived.

According to a ruling by the Karlsruhe Administrative Court, it is generally sufficient to have a mobile phone with you so that the inspection can be classified as “unsatisfactory”. If the inspection regulations provide for such consequences for “unauthorized aids”, they apply in any case. In one specific dispute, a student left his cell phone in his room handbag during an oral exam. However, since the school did not clearly indicate the prohibition again prior to the specific inspection, the subsequent rating of “unsatisfactory” for the specific situation was disproportionate. The school had to change the grades again. If there was a cell phone jammer at that point, we could get the same effect without checking the cell phone.

Bavaria has a special state law. In 2006 the school banned the use of cell phones. Pupils must switch off their cell phones “in school buildings” unless they are used “for teaching purposes”, the teacher makes an exception (Article 56 of the Bavarian Education Act). Other federal states have special regulations for schools.

Without jammers, Mandoli is a “cellular friendly” prison

Mandoli Prison in Delhi, which houses more than 3,000 prisoners, works without a cell phone jammer as the prison administration is still waiting for 4G jammer. Mandoli prison officials, which opened for prisoners in 2020 to relieve the Tihar prison in Delhi, confirmed that they do not yet need to install a single jammer.

The device is designed to block signals sent by cell phones and make it impossible for prisoners to use phones within the prison complex even if they manage to get the phone inside.

phone signal jammer

Prisoners are prohibited from carrying or using cell phones in Indian prisons.

The prisoners at Mandoli take advantage of the absence of jammers to break free. They make blackmail calls, file complaints or make videos and share them with their contacts in the city – in undisguised 4G glory.

In the past two months, Delhi police said they had blown up two racketeers operated by prisoners in the Mandoli prison complex.

On Thursday last week, three prisoners were reportedly arrested (in this case, officially from prison) for demanding 50,000 rupees from a man in Geeta Colony.

Two days earlier, the city police’s special cell (anti-terrorist unit) had alleged that they had averted murders by arresting two men who had been ordered to kill two men by a gangster detained in Mandoli. The police then announced that they had intercepted calls from Chanderbhan (aka Aman Yadav), who was being held in Mandoli Prison, to his staff – Balkishan and Mohammed Ateek – to eliminate two men who did not give him protection money.

A senior Home Office official said 4G jammers, recently approved by the government, were not available sooner. “We have moved to install them and the preliminary work is ongoing. Permitting jammers to use and installing the latest technology will take some time. Once installed, the devices will be the best and will render all cell phones in jail unusable.”

Fifteen days ago, the video of a gangster from western Uttar Pradesh showing the man recording a video on his cell phone while cooking in a mandoli prison cell had gone viral on social media.

Prison officials said that although the new prison was equipped with a jammer, the prison director general had instructed the prison general to carry out strict controls every day.

“Senior officials have instructed us to run strict security checks and warned us of action if phones are smuggled in. The few cases where prisoners used cell phones have been ordered to investigate. We have been warned that there will be strict measures to be taken nothing like this will happen in the future. “

Application of car jammer in border defense and military

Car jammer protects military and VIP convoys from being attacked by remotely controlled improvised explosive devices (RCIED) buried by terrorists in advance, and can effectively prevent terrorists from tracking the convoy via GPS.

It is used for EOD. Before EOD, it is necessary to effectively shield the wireless communication signal around the bomb to prevent terrorists from detonating the bomb through the remote control wireless device during the EOD process and avoid huge casualties.

It is used for the police to interfere with common communication frequencies in the process of rounding up criminals to prevent criminal gangs or police from leaking secrets through wireless devices and making rounds invalid. At the same time, it can also prevent criminals from remotely controlling bombs at key entrances of the building, allowing the police to quickly enter the building for round-up and avoid casualties.

When border defense and military patrols, prevent terrorists from being attacked by remote improvised explosive devices buried along the way.

Used in military protection areas, government buildings and other important places, shielding wireless signals can effectively prevent terrorists from conducting fixed-point blasting through remote-controlled bombs. At the same time, criminals who have been hidden in the military protection zone cannot communicate wirelessly with the outside world and leak secrets.

vehicle portable gps jammer anti-tracking

The wireless signal jammer adopts the American original Pelican military standard tow box, which is dustproof, shockproof and drop-proof! It uses external AC power supply, can also be powered by a built-in battery, and also supports external battery box power supply or generator power supply, the power supply mode is flexible!

The equipment adopts a modular design, and each component can be directly plugged in and replaced. Among them, five high-power shielding modules, the frequency can be customized and combined at will

The equipment control method is flexible and diverse, which can be directly operated and controlled on the machine, or controlled by an external wire control box.

Application place of portable signal jammer

Portable (drag box type) wireless signal jammer, can be used for important leaders/VIP VIP security, individual combat, special police team, EOD team, anti-terrorism unit, anti-drug unit, explosion-proof team, security checkpoint, administrative law enforcement, hostage negotiation, Various applications such as border control and military security forces. It can be used both portable and in-vehicle. When used in vehicles, the vehicle-mounted dedicated antenna can be configured according to customer requirements.

A powerful 4G 5G jammer

Effectively shield all 2G, 3G, 4G, 5G and WIFI signals of China Mobile/Unicom/Telecom;

12 RF modules work independently, 12 channels output, each channel RF power 2-3W;

Especially strengthen the power promotion for 3G, 4G, 5G, and fully ensure that the output power of each channel reaches 2W;

Possess future expansion space for 6G or other wireless frequency bands; more output channels (frequency bands) can support 24 channels;

The exquisite structure design, with invisible handle grooves embedded in the back, is not only convenient for carrying, but also suitable for wall-mounted fixed installation;

Adopt industrial-grade switching power supply, built-in precision voltage regulator circuit, even if the voltage fluctuates greatly, it will not affect the normal operation of the host;

The main body of the jammer adopts a fully enclosed protective shell design, which fully takes into account the problems of waterproof, dustproof and vandalism in special sites;

It is resistant to high temperature environment and can quickly transfer heat to the heat dissipation base (built-in ventilation duct heat dissipation fins) to avoid local heat accumulation;

Professional circulating air duct type heat dissipation base structure, the lower end quickly sucks in natural wind, and the upper end removes heat on both sides, ensuring stable operation of the equipment for 24 hours;

Built-in 4 ultra-quiet fans draw out hot air, and the fan speed can be adjusted; the equipment is completely noise-free during working hours;

Satisfy the requirements of continuous startup and use for many years, stable performance and long service life;

Harmless to human body. Complete product inspection and test reports; passed the electronic product safety test of the Ministry of Public Security;

The product has passed the environmental monitoring center’s electromagnetic radiation safety test;

The product has passed the electromagnetic radiation safety test of the provincial occupational health test center;

The extended interface and networking modes with intelligent networking linkage function include: power carrier + wireless, or: TCP/IP standard network communication;