Professional signal jammer information blog on Greatjammer

Why does our school install a signal jammer?

There are different opinions. In order to clarify the truth of the matter, the staff of the Student Union's Rights and Interests Department, the Information Center and the Rights and Interests Service Department of the Graduate Union visited the first time, and now I bring you the results of the vi ...

Why does the installation of mobile phone signal jammer cause interference to the communication base station?

In order to make the mobile phone signal amplifier achieve the effect required by the user, some manufacturers arbitrarily increase the output power of the product, thereby causing direct noise interference and pilot pollution to the communication base station. The noise coefficient, standing wave ...

Fun facts about cell phone jammers you didn't know

Mobile phone signal jammers are mainly aimed at all kinds of places where the use of mobile phones is prohibited, such as various examination rooms, schools, gas stations, churches, courts, libraries, conference centers (rooms), theaters, hospitals, governments, finance, prisons, public security, a ...

Anti-interference method

For the interference of the above two kinds of microwave signals, the following methods can be used to overcome or reduce the interference: 1. Look for the shielding position to find the position where the interference wave cannot interfere or the interference is small, that is, the interference de ...

What is the working principle of a terrestrial satellite signal jammer?

First: the composition of the jammer The ground satellite signal jammer consists of a transmitter and a horn antenna. The housing of the transmitter is similar to the trunk line on a cable TV. Satellite communication is a universal signal resource stipulated internationally and is protected, and n ...

Universal jammer is suitable for all frequencies used by the remote control

I need to know if it is possible to block the neighbor's car alarm? He bought it two days ago and I already hate it! I can't sleep because it's really noisy. I don't know what caused it, but his car was parked in the garage next to my window. You know, there is nothing you can do with the car lock ...

Jammers have grown rapidly over the past five to six years

Flint said: “Over the past five to six years, GPS jammer has indeed been developed, and lasers have indeed provided you with powerful capabilities independent of GPS. " In addition, about eight years ago, the government-authorized JDAM upgrade also required the kit to include an anti-spoofing modu ...

The jammer was once considered the most expensive device used by the government or nation-state

Washington-Manufacturers of precision guided weapons no longer care that simple GPS guidance systems can still work on their own. Jammers and deception devices threaten the future battlefield. The manufacturer noticed and resolved the threat. The military and its industrial partners have adopted a ...

Jammers spread from country to country like conventional weapons

John Flint, JDAM project manager for Boeing Weapon and Missile Systems, envisioned a battlefield scenario in which the US military would encounter a series of cheap jammers to cover US missile targets. In April, Assistant Secretary of Defense Bob Work told a group of people at the US Army War Colle ...

US government buys 100 portable drone jammers

Those who win it in the war will determine the course of the war. The US government purchases around 100 portable drone jammer to protect government facilities, property and personnel. The jammer interfered with the UAV's radio control, avoiding dangerous substitutes involving bullets and other pro ...

The wifi jammer has applications in all countries of the world

Cell phone jammer has been widely used in various fields. Which operating state can better reflect the best state of the jamming device? Hello! QYOTraci18, the best Cell Phone Jammer, must have strong interference range and good heat dissipation effect.In addition, the working stability also reflec ...

The Ministry of Defense will select contractors to develop and manufacture next-generation jammers over the next two years

With Electronic Countermeasures (ECM), Radar Early Warning Receivers (RWR), Electronic Support Measures Providers, RF GSM jammer and other Electronic Warfare (EW) technologies will create a market of 28, $ 4 billion over the next ten years (New York, Connecticut). Forecast International market anal ...

Military portable jammer designed to handle radio controlled improvised explosive devices

April 23, 2011. French army officials fight improvised explosives (IEDs) - road bombs, in part with a radio-controlled IED wave jammer at Thales, Neuilly-sur-Seine, France. Vehicles equipped with electronic defense systems can prevent the IED from exploding when triggered remotely. SIMMT (Maintenan ...

Backpack Jammer helps Marines resist road bombs and disrupt enemy communications

The Sierra Nevada Company of Sparks, Nevada has been awarded a $ 73.2 million contract with the United States Marine Corps to provide the Naval Expeditionary Force with the Nevada Modi II backpack electronic jamming system to defeat the improvised explosive devices (IEDs) and destroy the enemy comm ...

Allow prison staff to use jammers to block wireless signals in prisons

Justice Minister Kenny MacAskill has announced that in the coming weeks a pilot program to test cell phone jammer in Scottish prisons will be launched in two prisons. Cell phones are full duplex devices, which means they use two different frequencies, one for talking and the other for simultaneous ...

The boss used high-power jammers and some employees resigned

In the workplace, every company has rules and regulations, and employees work under their bosses. It is understandable to follow these systems. However, some bosses have to be indignant with people and attract strong dissatisfaction from employees. Here is an experience shared by a reader, let’s t ...

Mobile phone signal intelligent shielding system is committed to escort information security

In the information age, with the rapid development of communication technology, mobile phones have become an indispensable tool in people's daily work and life. However, the widespread use of mobile phones has also produced some problems that cannot be ignored, mainly as follows: 1. Become a new le ...

The role of cyber security in the energy sector is growing

Critical infrastructure may become the target of serious cybersecurity threats. The recent alerts issued by the FBI and the Department of Homeland Security (DHS) reflect the Russian government’s actions against U.S. government entities and energy, nuclear, commercial facilities, water, aviation, a ...

New artificial intelligence technology helps police catch criminals

The New York Police Department has developed a new pattern detection computer software to help catch criminals. The New York Police Department has been using a new internally developed software that recognizes certain behavior patterns and compares them to a database of thousands of reported thefts ...

What is the prospect of the signal jammer used in the exam in the Chinese market?

Over the years, Chinese science and technology has developed very rapidly. Things like test room signal jammers were previously only imported. Now, except for some important parts that need to be imported from abroad in order to ensure the quality of the shield, the other parts have been produced i ...

Why is the black technology test room signal jammer so powerful?

Last month, cheating occurred in the college entrance examination in Shandong, China. Some criminals confused the candidates and said that they could provide cheating tools to help candidates pass the exam smoothly. But in the end it was discovered, and because of this, the prospects of these candi ...

5G technology conquer new heights

The fifth-generation cellular network technology called 5G provides broadband access and is designed to greatly improve the speed and responsiveness of wireless networks. The faster transmission speeds and lower latency provided by 5G can enhance a variety of military applications, including autono ...

The safety problems of the use of jammers are solved one by one

Wireless network technology has gradually matured. Radio interference in daily life can interfere with the signals of wireless communication devices. In order to effectively avoid radiation damage, there is a clear answer to the question of whether the shield has radiation. There are more and more ...

Jammer online purchase shop Greatjammer purchase Jammer security promise

In connection with the rapid development of the Internet, various resources on the Internet offer us great convenience, and there are some dangers in enjoying those convenience. It is easy to purchase various high-tech mobile electronic devices on the Internet. With the spread of bad online culture ...

Purchase a new GPS jammer for anti-tracking

We all know that the latest generation of cars are equipped with GPS satellite navigation systems, so the driver even knows the specific street name when getting off the car. It is very powerful indeed. This means that we not only know where we are, but we also know how to get to the destination. T ...

Cellular signal interceptor equipment corporate privacy monitoring

If you spend a lot of time surfing the Internet looking for an easy solution to unauthorized monitoring, you may be disappointed. Yes, because the old issue of phone privacy, especially the issue about mobile networks, has exceeded the warning level, public opinion questioned whether data privacy i ...

Wireless interference devices make the surrounding environment quiet

In the context of the widespread popularity of mobile devices such as mobile phones, more and more people use mobile phones, which brings many noise problems to public places. How to quickly make the surrounding environment quiet for a moment? There is no doubt that using a mobile phone jammer is t ...

Greatjammer mobile phone signal jammer frequently asked questions

1. When the signal jammer is working, why some mobile phone signal indications still have signal indications? Answer: This is just an illusion. In fact, the mobile phone can no longer communicate at this time. When you press the pull button at will, you will find that there is no signal indication ...

Introduction to the types of GPS jammers and detailed explanations of how to use them

1. GPS jammer , which blocks satellite signals (on the contrary, it generates noise in the satellite frequency). The signal is always transmitted to devices located on the ground (or in the air) at two main frequencies: the frequency GPS (the civilian L1 band used for trackers) is 1575.42 MHz. Freq ...

4G mobile phone signal jammer achieves high power gain indoors

There are many online shops selling signal jammers, such as cell phone signal jammer , GPS cell phone signal blockers, WiFi signal blockers, UHF signal jamming devices, and other types of signal blockers. But now we rarely find a powerful signal blocker, which can cut off the 4G signal and is suita ...

What are the advantages of installing a mobile phone signal jammer in an auditorium?

The rapid development of mobile communication has brought great convenience to people's work and life, but the side effects caused by mobile phones have become increasingly apparent. The insecure factors of mobile phones are mainly reflected in the fact that in important secret-related places such ...

The detect wifi jammer can block monitoring

It can be seen on surveillance video that a man walked into an adult store in Shishi at around 2 a.m. The man was wearing black jeans, a hat, and a face mask, he observed the surveillance around him in a circle, took a black object out of his pocket and placed it in a corner, then began to pick the ...

The wifi jammer detector can protect the surrounding wireless networks

No matter where we go now, it looks like the first sentence we enter the store is to ask the owner, "What's your WiFi password?" It is undeniable that the wireless network has permeated all aspects of our lives. If we ever lose it, the consequences will be unimaginable. But did you know that WiFi j ...

5G cell phone jammer detectors occupy part of the internet market

We know that the development of science and technology will surely bring a new wave of science and technology. In all things, it is the process of replacing the old with the new. New products are always more and more popular. But old things also have important characteristics. The evolution of mobi ...

Portable 5G interference box to maintain a healthy lifestyle

5G signal is the development trend of the "time". In the past two years, 5G network signals should be able to spread. There are not many examples of using 5g signals, but they are in the testing stage, but the mobile phone signals are mature and in use, and the coverage is very wide. In a short tim ...

Use jammers to solve the negative effects of mobile phones

There is no doubt that mobile phones are playing an increasingly important role in our lives and have changed our way of life to a large extent. Compared with face-to-face communication, we started to prefer using mobile phones to communicate. You will see people using mobile phones everywhere. Mob ...

Cheap portable jammers help manage student learning

Many educators struggle to figure out how to use electronic devices in the classroom. Some educate students about the negative effects and encourage them to regulate their use. Others even emphasized the possible uses of mobile devices in classrooms. However, many people just try to ban everything. ...

France allows the use of GSM jammers in movie theaters

Officials said that the Minister of Industry has approved a decision that France will not see movies in France in a short period of time. The minister has approved a decision that will be in cinemas, concert halls, theaters and other places. Install a cell phone jammer, provided that the emergency ...

The result of no cell phone jammers in the prison

Smuggling mobile phones is a real problem. They allow prisoners to secretly use drugs, engage in illegal transactions and even organize murders under the noses of guards and guards. A prison in South Carolina recently detected 35,000 phone calls and text messages over a 23-day period. The cell phon ...

Cell phone jammers are used in the temple to keep phones silent

Cell phone jammers were used to keep calm during temple prayer. In Bangladesh, Kukke Sri Subrahmanya Temple, one of the famous pilgrimage centers in South India, the cell phone jammer has been installed to strengthen security measures. This initiative was taken following the desire of the devotee t ...

Correctly use the true intention of the signal jammer

In the past two to three years, with the gradual rise of the cellular phone shielding equipment market, the types of cellular phone shielding products have spread throughout the entire cellular phone industry. Currently in the market, cell phone jammer products are called: signal jamming phones, mo ...

The U.S. Department of Transportation takes a positive attitude towards mobile phone interference technology

The US transportation department is trying to install a new technology of cell phone jammer on cars to prevent drivers from using mobile phones while driving. The US Secretary of Transportation said on the breakfast program: "There are many technologies that can make mobile phones unusable, and we ...

Why does the United States pay special attention to GPS jammers?

U.S. military experts said that in the largest exercise, the U.S. military showed regional GPS signals near the closed exercise site, which means that a large number of domestic civil aviation flights are serious. Sacrifice. The U.S. military believes that when fighting against competitors, the cou ...

High Power Phone GPS Bluetooth Jammer for Car Using

Buy a high power GPS bluetooth jammer for car use to keep your driving time safe and quiet. The best choice from online shopping, take advantage of the rapid growth of the global economy. As we all know, global growth could come as a surprise on the positive side, especially if fiscal stimulus were ...

Manila plans to use more jammers in prisons

Metro Manila (CNN Philippines) - Inmates in the national prison system can continue their illegal transactions using cell phones. In order to prevent the inmates from communicating with the outside world, the authorities are now using two high-performance signal jammer for military purposes. Both u ...

WiFi jamming attacks are easier and cheaper than ever

A security researcher has shown that disrupting WiFi, Bluetooth, and ZigBee networks isn't difficult, but most importantly, it's not as costly as you might think. According to Mathy Vanhoef, a PhD student at KU Leuven (Belgium), this can be easily done with a $ 15 Wi-Fi dongle bought from Amazon, a ...

What are the misunderstandings in the installation of mobile phone signal jammer?

With the popularity of mobile phones, the demand for cell phone jammer in various meetings and examinations has greatly increased, so mobile phones in mobile phone jammers naturally have a broad market. However, extremely Most customers do not have enough understanding of the mobile phone jammers o ...

Do you agree with schools installing signal jammers?

For more than 10 million students and their parents and family members, the fairness and justice of each examination process is very worthy of attention. For example, possible cheating must be strictly prohibited, otherwise it will harm the interests of children who normally take the test. Speaking ...

Cell phone signal is annoying, jammer hot sale

In today's society with advanced communications, many people worry about the untimely phone calls of people around them. In order to eliminate this annoyance, a device that can block cell phone signals by manually operating buttons is quietly selling in the United States. Although this signal jamme ...

Introduction to the basic principles and effects of wireless network signal jammers

Now our mobile phone communicates with the base station through the uplink frequency, and then transfers the signal to the mobile service switching center to realize the call. In the standby state, the mobile phone communicates with the base station through the broadcast control channel. Once there ...

Does the mobile phone signal shielding device have practical effects?

Cell phone jammer devices are used in many places, such as school exams, prisons, hospitals and other places. However, the choice of shielding devices is also very particular. Do you know how to choose a shielding device? Many people know the shielding device but don't know its working principle. T ...

Examples of installation of UAV jammer equipment by cultural relics protection units

UAV "black flying" harm There are blind spots in the supervision of drones in my country, and the large-scale use of drones brings hidden dangers to public safety. Drones that were originally used for legal purposes are increasingly being used for criminal purposes. The public has become increasing ...

How to install the car portable mobile phone signal blocker?

1. Product Features (1) Product function overview: The vehicle-mounted hand-held cell phone jammer is a wide-band transmitter with transmission frequencies of 870～880MHz, 930～960 MHz, 1805～1920MHz, 2010～2145MHz, 2400～2500MHz, 2300～2370MHZ, 2555～2655MHZ (excluding GSM, DCS, PCS, 4G uplink op ...

Schools and prisons use mobile phone signal jammers to be safety-oriented

Schools and prisons should follow these three principles when using cell phone jammers Radio management 1. The use of mobile phone signal jammers should not be exchanged at the expense of public mobile communications. Among the people who use cell phone jammer , some are to prevent cheating in ex ...

GSM jammers do not interfere with our private frequencies

Thieves can obtain illegal GSM jammer . They range in size from small portable devices to large briefcases. They send signals at GSM frequencies. This prevents GSM tracking devices in the vehicle from sending and receiving messages. Yes, the signals transmitted by these illegal devices form bubbles ...

More and more discussions about GPS jammers

GPS jammers are becoming more and more popular. why? We have discussed the reasons. This is because today our privacy is very easy to sell. GPS jammers may prevent someone from tracking your behavior to protect your privacy. It is now easy to order jamming devices online. Regarding the GPS jammer A ...

Be careful and avoid malware on your phone

Malware created by hackers can damage our computers or mobile operating systems. Hackers have created many different types and can cause serious trouble. At the very least, people should know what malware is and how to deal with it when it attacks a mobile phone. When Internet users browse maliciou ...

Our views on the legal issues of jammers

The legal issue of jammers is a frequently discussed topic. As we discussed before, the laws regarding interference vary in different countries. First of all, what we want to say is that every signal jammer has been introduced into the public society from the beginning. Later the government began t ...

Beware of cybercriminals, you have to learn to use tools

Beware of cybercriminals-when you are most vulnerable, they can now catch you. Kaspersky Lab recently revealed that cybercriminals have a new weapon to attack your privacy-a mini candid camera. Now you can hijack the camera of your mobile device and invite yourself to the most private moment. Stati ...

Jammers will one day be a tool to protect your privacy

There are many complaints every day that privacy has been breached, and nothing we do can be concealed from other people and spy organizations like NSA. Therefore, we decided to provide you with some suggestions on how to protect your privacy without disturbing others. First of all, we want you to ...

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