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On-board frequency jammer: used for fleet safety and safe travel

How many on-board frequency jammers are needed for fleet safety? This question plagues those who are responsible for transporting their fleet from one place to another. In many countries, the threat of RCIED weapons (also called roadside bombs) is high. frequency jammer is a solution to the threat of roadside bombs; but some knowledge about RCIED failure is required.

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Since the late 1970s, we have had experience in countering remote-controlled weapons and introduced a series of bomb attacks. Our current bomb jammer series can withstand the current threat of radio-activated weapons. We install IED jammers in many countries.

At home, we can explain the working principle of our fleet protection solution. Our professional RF technical team members can outline the defensive capabilities of small, medium and large vehicles in the fleet. These people use frequency interference series IED jammers to prevent radio detonators from receiving their commanded knock signals.

What does the security assessment involve? Those who seek our advice either come to our office for consultation, our factory for demonstration, or bring a head of RF technical team to the country to seek electronic warfare defense technology in order to conduct an on-site review of the area. There, we can explain what is involved during RF jamming operations in a fleet scenario, the advantages of our technology, and the limitations of RF interoperability in other radio communication telemetry.

Our extensive knowledge of the subject of RF interference is helpful for those who have little understanding of what is involved in fleet protection operations. We can explain in basic terms how our systems work, how they work, they work well, and what happens when RF interference starts.

Intelligent frequency jammer protects life safety

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The intelligent frequency jammer is a new generation of multifunctional jamming system, which can significantly enhance the protection of vehicles against radio-controlled improvised explosive devices (RCIED).

The new mobile frequency jammer combines intelligent jamming capabilities with signal intelligence (also known as electronic support measures-ESM) to understand threats in detail, thereby significantly improving mission planning and force protection.

The multifunctional frequency jammer analyzes the signal spectrum around the vehicle, so it can block radio signals used to trigger roadside bombs in a targeted manner, instead of suppressing noise through a wide spectrum, preventing friendly communications or operating on specific frequency bands, leaving This is a fragile gap that could be exploited by the insurgents.

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The multi-function jammer adopts a new ultra-fast intelligent response jamming technology, which can greatly improve the protection level. The system detects and classifies radio signals used to ignite roadside bombs. Then it transmits interference signals in real time, which are completely suitable for the harsh frequency band. Thanks to the new digital receiver and signal processing technology, it is possible to achieve response times far below milliseconds.

The new jammer also uses an extension to provide signal intelligence in combat space images-this task could only be completed by relatively complex systems that were difficult to deploy and consume a lot of energy. The new instrument obtains the “electronic warfare” of the radio communication threat situation in a shorter time. This new feature can help users gain power protection and intelligence vital to further operational planning.

“The lessons learned in recent conflicts prove that the enemy often changes the type of radio transmission used to trigger signals in asymmetric scenarios,” explained the head of the Sensors and Electronic Warfare Unit. “Therefore, continuous analysis of threats and the resulting adjustments to countermeasures are indispensable. Multifunctional frequency jammers are needed to accomplish these two tasks faster and easier.”

ntelligent frequency jammer is a new generation of multifunctional jamming system, which can significantly enhance the protection of vehicles against radio-controlled improvised explosive devices (RCIED).

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Prison installs Jammers to prevent illegal trade

With great concern and for many reasons, I support the legalized control of Cell Phone Jammers for use within correctional institutes.

A cell phone in a prisoner’s possession allows him to contact outside partners in the crime to coordinate evacuation plans, creating life-threatening situations for the guards and the public surrounding the institution. More often, reports from correctional facilities overwhelmingly indicate that hidden cell phones have been used to harass victims of their crimes, or an inmate repeatedly intimidates his victim in an effort to persuade the victim to retract his charges or change his mind. history. the testimony.

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Many inmates continue to organize their illicit drug trafficking within the prison walls. A cell phone is an essential way for the inmate to keep the drug organization running and tightly controlled. By communicating with visitors prior to their arrival, prisoners can arrange for a transfer of drugs and drug paraphernalia, allowing them to perpetuate the same illegal habit that brought them into custody. Frequently, the family experiences harassment from their incarcerated parent, demanding bail when the family recognizes that the parent is better served and remains in detention.

A significant concern is a detainee’s ability to contact witnesses prior to an impending hearing, trial or appeal. By matching alibis or correcting conflicts in testimony, an accused can achieve a reduction or a complete dismissal of the charges. The most frightening concern that correctional institutes claim are undetected cell phones used by inmates to warn other inmates ahead of surprise searches that could confiscate cell phones, knives, drugs, syringes and other contraband . This contraband can pose a threat to the lives of correctional officers and medical personnel working in one of the most hostile and dangerous workplaces.

In summary, prisons in accordance with Cellular cell phone jammer is imperative, with a cell phone jammer you can prevent prisoners from using cell phones for illegal transactions or contact with the outside world, endangering the cell phone. public order and cause irreversible injury. Our cell phone jammer is very easy to use. Just turn on the switch, and within 5 seconds, it will enter the state of no network within 40 meters. The phone will display the no service status. Will not affect the use of other equipment.

How can the villa area interfere with the mobile phone signal to prevent theft?

1. The signal of the villa itself is poor, it is far from the signal tower, and the mobile phone cannot receive the signal in the weak signal area.
2. The thick structure of the wall in the villa area blocks the signal.
3. The signal is bad due to interference.

Since the mobile phone receives signals through the propagation of electromagnetic waves, the base station establishes a connection with the mobile phone by transmitting electric waves, so as to achieve the purpose of voice calls. Therefore, the cell phone jammer of electromagnetic waves will have an adverse effect on mobile phones.

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It is normal for the mobile phone to display 4G signal and make a call to 3G or 2G signal! It is not caused by cell phone failure or base station failure. The following explains why this phenomenon occurs:
1. 4G has only one data channel (commonly called the Internet channel); 2G and 3G have two channels, data channel and voice channel. So 2G and 3G can surf the Internet and make calls, while 4G can only surf the Internet because it only has a data channel.

2. In the early days of 4G, in order to satisfy the requirement that the mobile phone can make calls when using the 4G network, a solution called CSFB (Circuit Domain Fallback) was developed. Automatically fall back from 4G network to 2G or 3G network before starting to make calls. But this technology has a disadvantage, that is, you cannot access the Internet when making a call, so it is inconvenient for some business users.

3. Now that 4G technology has matured, in order to satisfy mobile phone users with a better experience, VoLTE (High Definition Voice Call) has been developed, which is a technology that can use the 4G network to make calls while also being able to access the Internet. The mobile phone uses the data channel of the 4G network to make calls and surf the Internet, and the call quality is clearer than that of 2G and 3G.

4. Dropping due to handover failure. Network operators use base stations to transmit wireless signals to serve users. The range of base stations is limited. Therefore, there may be many base stations in an area. The combination of all base stations is a network system. Each base station has its own range. If this range is exceeded, the mobile phone must replace the base station to keep the mobile phone in the network at all times.

Anti-UAV Technology Development Prospect and Impact Analysis

With the rapid development of military and civilian UAV technology, especially the successful development of reconnaissance/attack integrated UAV, the development of the “swarm” attack mode, the efficiency and cost-effectiveness of using traditional missiles and shells against UAVs The problem is getting more and more prominent. At present, all countries are stepping up the launch of strategies for UAV defense and promoting the rapid development of anti-UAV technology and equipment. Compared with missiles, the use of electromagnetic interference and lasers to counter unmanned aerial vehicles has the advantages of speed, flexibility, and high cost-effectiveness, and has attracted the attention of various countries. The successful development and testing of a batch of anti-UAV equipment in the United States and Europe has provided efficient and low-cost measures to defend against possible future drone threats.

Drone Jammer Interception System

In recent years, unmanned aerial vehicle technology has spread rapidly and widely, and a large number of remote-controlled helicopters and multi-rotor aircraft that are easy to control have appeared. Unexpected incidents related to unmanned aerial vehicles have frequently occurred, posing challenges to security and public order management. In the future, drone jammer technology will play an important role in the security field. In addition, the anti-UAV system is an emerging equipment that will help promote the development of technologies in the fields of microsystems, electromagnetic spectrum, and directed energy.

Anti-terrorist forces acquire radar jammer

NSG and CISF will have mechanisms such as electromagnetic systems, which incorporate radars and radio frequency jammer, and may have the power to shoot down any object from low altitude to low altitude.

The National Security Agency and the CISF Industrial Security Agency may have the right to shoot down “rogue” low-flying objects such as drones and gliders under a new policy being finalized.

Interior Ministry officials said a draft policy on the operation of unmanned low-level flying objects will be released soon to address the possible use of drones, gliders and other tools to conduct terrorist attacks.

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The Union Secretary of the Interior recently held a meeting with representatives of the Indian Air Force, Ministry of Civil Aviation, Central Industrial Security Force (CISF) and others stakeholders to discuss this issue.

“The draft drone policy is in its final stages. It focuses on regulating the use of unmanned aircraft and similar flying objects at low altitude. The policy itself is expected to be released into the public domain this time. this month to consult with stakeholders. ” the official Say.

The official said that if the National Security Guard (NSG) and the CISF consider him a “thug,” they may have the right to shoot down any low-flying object that “makes mistakes.”
Both forces will have defense mechanisms such as electromagnetic systems, which will have built-in radars, radio frequency wave jammers and detectors.

The policy will have a preventive function to ensure that terrorist organizations or other anti-national elements will not abuse any low-flying object.

The policy was formulated after several drones were discovered at airports and border areas, which hampered air traffic and caused security concerns.

“There is a need to supervise drones to prevent their abuse in sensitive areas like airports. This policy will stipulate how to control thieves who operate drones.” Another official said.

The policy will have two aspects of enabling functions: granting permission to use drones at international borders and enabling national protection of important facilities and disaster relief operations.

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.

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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.

Many authoritative units began to use mobile phone signal jammers

When the mobile phone works, it is within a certain frequency range, the mobile phone and the base station are connected by radio waves, and the data and sound transmission are completed with a certain baud rate and modulation method. In view of this communication principle, the cell phone signal jammer scans from the low end frequency of the forward channel to the high end at a certain speed during the working process. This scanning speed can cause garbled interference in the message signal received by the mobile phone, and the mobile phone cannot detect the normal data sent from the base station, so that the mobile phone cannot establish a connection with the base station. The mobile phone is manifested as a search network, no signal, no service system and other phenomena.

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Common mobile phone signal jammers on the market have operating frequencies: 869~894MHz; 825~960MHz; 1805~1880MHz and 1900~1990MHz, etc. The operating frequency bands are CDMA800, GSM900, DCS1800, and PCS1900. It can control the range of about 40 meters in diameter, using DC-DC converter input voltage and 5V output voltage.

The emergence of mobile phone signal jammers has played a certain role in suppressing the increasingly serious “mobile phone noise pollution”. But as a mobile communication interference device, will the electromagnetic radiation generated by the A topic of concern. At the same time, during the installation and use of mobile phone shielding equipment, due to the greater autonomy and randomness in terms of the number of installed units, transmission power, coverage, and radiation control, some places require effective interference and The shielding effect is maximized, even blindly introducing high-power mobile phones to interfere with the installation and use of shielding equipment. The impact and damage to the human body cannot but be worrying.

As another product of human beings, the “mobile phone signal jammer”, while shielding mobile phone signals and ensuring information security, it will definitely bring a certain negative impact. However, when we look at the problem, we should see the main contradiction. Just as we did not stop using a kitchen knife because it cuts vegetables, we will not reject a “mobile phone signal jammer” because it may cause harmful radiation to the human body. After all, the “mobile phone jammer” guarantees information security and contributes to social stability is its main contribution. The most important thing is that it brings security to places with high safety factors such as prisons, detention centers, and major conferences.

As far as the quality of the mobile phone signal shielding system is concerned, judging by the current level of scientific understanding, there is no security problem. The reason for this is mainly based on the following two reasons:

First, from a technical point of view, although the mobile phone signal shielding system is a new technology product, it should be said that it has been developed more mature in technology, so it has high security. According to the test report of the authoritative testing organization, the qualified mobile phone signal shielding system has low radiation, and because it is usually installed in high places, it has no adverse effects on human health.

Second, from a practical level, many authoritative units in China have begun to use mobile phone signal shielding systems. For example, in 2004, in order to maintain the solemn atmosphere of the memorial hall and meet its special confidentiality requirements, the Chairman Mao Memorial Hall Administration installed a mobile phone signal shielding system produced by Shanghai Jike Electronics Co., Ltd. in the memorial hall. After actual use and testing , The Memorial Hall Administration believes that the products produced by Jike Company meet its requirements in all aspects including safety and aesthetics. I think this should be a very convincing case. In addition, according to the information collected by the author, as a leader in the mobile phone signal shielding system industry, the products produced by Shanghai Jike Electronics Co., Ltd. are used in the prisons of the judicial departments and the detention centers of the public security departments. All of them are used, and the feedback after use is believed to be a proof of immortality.

UAV signal race-the importance of jamming technology

With the rapid development of the drone industry, some individuals and groups have begun to use drones for malicious purposes on a global scale. Many companies are paying attention to this trend and trying to enter the anti-drone industry. They introduced various drone guns, anti-drone shooting, attacking birds, cyber artillery, lasers, missiles, GPS jammers, radio transmitters and more.

The drone did not seem to hit the projectile and laser when it landed (although this kind of evidence will definitely change this analysis). In addition to physical projectiles, there are three known non-dynamic methods to stop drones. Radio frequency (RF) interference, global navigation satellite system (GNSS) interference and deception. Radio frequency jammer disrupts the communication between the drone and its operator, usually causing the drone to descend or return home. With GNSS, the drone will lose its link with the satellite navigation. After that, the drone will usually hover, land or return to its original position. The attacker used deception to provide new information to the drone to control its flight.

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By the way, the operation on the Crimean Peninsula was a great success, without bloodshed, because all Ukrainian military communications were cut off. I’m not sure about the mobile phone, but it is not allowed to use it as a military communication channel. Therefore, the Ukrainian army did not resist because it did not receive an order from Kiev. They don’t need much… Many people just joined the Russian army and navy enthusiastically.

It did not “close” anything. First, it will cause a big sensation on the radar oscilloscope, until the software or personnel press the “search for interference” mode button. Then lock the weapon system on the jammer. In a real war, the jammer will disappear within a few seconds. The American ship did not want this to be a fierce war, so it made the destroyer think it was evacuating it. You’re welcome.

China will continue to develop features designed to limit or prevent the enemy’s use of space-based assets in crises and conflicts, including the development of directed energy weapons and satellite interference.

The problem is that many potential enemies, including the Chinese and Russians, are developing advanced digital radio frequency memory (DRFM) jammers. These jammers effectively remember the incoming radar signal and repeatedly send it back to the sender. This will greatly reduce the performance of Friend Trader.

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.

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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.