Greatjammer professional mobile jammer blog

The mobile phone signal jammer is suitable for installation in noisy places

Some jamming devices transmit radio signals in the 800MHz frequency band, which is used as the mainstream carrier frequency band for NTT DoCoMo and KDDI au phones. Of course, there are interference products in other frequency bands. Currently, the main corporate users of mobile phone jammer devices ...

More and more people are buying mobile phone jammers

In the current market, the variety of mobile phone shields is dazzling, which makes it more difficult to choose a suitable mobile phone shield because different mobile phone shields are designed for different purposes. It is very important to understand the mobile phone jammer before deciding to bu ...

What are the advantages of small cell phone signal jammers?

Recently, small cell phone signal jammer has appeared in our lives, but many people still don’t know what type of product it is, because compared to large jammers, this type of product is really It has a variety of advantages, but we have never bought it. It is not clear which aspects of its adv ...

Training institutions can use mobile phone signal jammers to increase the admission rate

The appearance of mobile phones has greatly facilitated people's lives, promoted the completion of work and study, and brought in the connection between people. But sometimes over-reliance on mobile phones will only make mobile phones a hindrance, a negative reaction. Especially for students, espec ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

A new application of mobile phone signal jammer

In order to obtain more knowledge beyond books and teachers, many parents will buy smart phones for their children to strengthen their children's learning. It is possible to use smart phones reasonably. Some parents will bear Mind, if children are addicted to Internet games, it will be serious. Whe ...

What are the advantages of mobile phone wireless signal jammer?

In the past few years, various types of cell phone signal jammers have emerged in an endless stream. We are dazzled and dizzy. In fact, not all products are suitable for us to apply to ourselves. Some products are public, so they are not. Suitable for us to apply to other fields, there is a very sp ...

300-500m mobile phone shielding device for prison army

Have you ever seen a mobile phone shielding device specially designed for military and prisons and other important places? In fact, this kind of military prison that uses phone shielding devices has been widely used and now has played an important role. You can learn more about the overall situatio ...

500-2000m multifunctional signal jammer

In some places where 50-100m mobile phone jammers are used, 100-200m phone signal jammers and even 300m mobile phone signal jammers are not enough, because the shielding distance is not enough to meet the requirements. If you are looking for a more powerful shielding range, here you will get a 500- ...

Strict military test mobile phone signal jammer goes online

According to reports, metal detectors and cell phone jammer in recent military examinations have been launched to escort the fairness and justice of military examinations. Soldiers are the backbone of the country. Many families hope to send their children to military academies to serve as soldiers. ...

Wireless signal shielding instrument is becoming popular

There is an increasing demand for cell phone jammer in the market, and one of them is the mobile phone signal jammer for exams. In order to achieve the fairness of the exam, most exams will choose to use a mobile phone signal jammer. According to statistics from the Ministry of Education, there wer ...

How does a 4G signal jammer block 4G signals?

Technology 4G is an advanced and promising mobile communication product, its characteristics include the following factors: high data transmission rate, and improved voice communication quality. It is worth noting that the 4G format operates on previously unknown frequencies. In fact, thanks to thi ...

The US Army asks BAE to develop an advanced radar jamming technology

The technology aims to improve air survivability and mission effectiveness for rotary wing aircraft and UAS of the US Army. WASHINGTON - BAE Systems has received research and development funding from the US Army to develop an advanced radar jamming technology. The technology aims to improve air sur ...

Portable jammers reduce quarrels with others

Looking for a portable mobile jammer to help you avoid all sorts of troubles? As you know, people's lives are becoming more and more busy due to the development of mobile phone technology in the information age. Sometimes you just want to play in a quiet environment. For a quiet and healthy daily l ...

Indoor high-quality small jammer

As we all know, in order to achieve certain needs, interference with mobile phone signals is used to achieve the purpose. The best option is to buy different types of small jammers in the market to meet your needs. Looking for jammers that can intercept 3G mobile phone signals in the signal and hav ...

The shielding range of the mobile signal jammer cannot be solved by a single factor

The working principle of the cell phone jammer : The shielding device scans from the low end frequency of the forward channel to the high end at a certain speed during the working process. The scanning speed may cause garbled interference in the message signal received by the mobile communication, ...

Examination room signal jammer range, functional characteristics and usage method

Examination room signal jammers must be familiar to everyone, because we will encounter them during the exam, so let us and Shan Jinuo to understand the scope of the exam room signal jammer, its functional characteristics and how to use it. Examination room signal jammer range 1. jammer Cell phon ...

Just buy a high power signal jammer at a reasonable price here

If you spend a lot of money on items, you actually need but not high quality and fully meet your requirements, this is really a pity, this is also a situation that many people do not want to meet and want to avoid it has become the rule, when When people need to use signal jamming equipment, this r ...

Commercial mobile phone jammer can make work more smoothly

Today, information technology is developing at an unprecedented speed. There is still not a large number of citizens without such devices, such as mobile phones. However, despite the usefulness and interestingness of technological developments in this field, there are many ways to use them to harm ...

Why do prisons need to introduce mobile phone detectors and mobile phone jammers?

Interference technology has developed, and prisoners’ efforts to smuggle equipment are also evolving. She said these tests could lead to more widespread use of jamming technology in prisons to fix prisoners' phones, which officials across the country call their number one security threat. This has ...

How to protect business secret meetings from illegal recording

When a business meeting is held, no one can guarantee that in an important meeting, one's own competitors will not install some equipment for listening. In this way, one's own company will also be threatened with the disclosure of trade secrets. An effective way to prevent opponents from recording ...

How to choose a suitable recording blocker?

As a new product, recording signal jammer has received more and more attention and support from people. Users have changed from the previous government agencies (mainly the public security system and service-oriented windows) to the current enterprises, and the needs of enterprises have gradually i ...

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