Greatjammer professional mobile jammer blog

Does the mobile phone signal jammer affect wired Internet access?

In some special occasions, such as examination rooms, gas stations, prisons and other places where the use of mobile phones is prohibited, it is often necessary to use mobile phone signal jammers to shield outside operator signals. There may be quite a number of people who don’t know much about ce ...

The use of jammers needs to be reasonably regulated

Recently, Xuchang Radio Management Bureau received complaints from mobile operators and quickly formed a joint law enforcement team to investigate the interference area of communication base stations. It was discovered that a company’s warehouse had privately installed cell phone signal jammer ...

Does the mobile phone signal jammer affect the Internet access of the laptop?

Laptops are used by more and more people for office and even entertainment purposes due to their convenient portability and other advantages. In some occasions, mobile phone signal jammers may be used for special needs such as confidentiality to shield and interfere with mobile phone signals. . As ...

How to use the remote control of the high-performance jammer?

SEI0635 high-performance signal jammer is an integrated mobile phone signal jammer independently developed by Fujian Lingxin Information Technology Co., Ltd. It has many advantages over traditional jammers in the market. One of them is to support infrared remote control output power control. We all ...

Compared with traditional jammers, what are the advantages of digital jammers?

With technological innovations, cell phone jammer is constantly being upgraded, roughly divided into new digital jammers and traditional jammers. Compared with traditional jammers, the advantages of digital jammers are very obvious. Then, what are the advantages of digital jammers compared with tra ...

How to block the mobile phone signal?

Shielding the mobile phone signal is an act of temporarily disappearing or weakening the mobile phone signal by using a certain device or a certain method. It is mostly used in education department examinations or state secret agencies and confidential projects. Some methods and equipment for shiel ...

Does the mobile phone signal jammer need to be adjusted?

Signal jammer is required in many places, but many people do not know how to install mobile phone signal jammers. Some people think that the signal jammer can be directly connected to the power source, while others think that the frequency needs to be adjusted. It is difficult to determine whether ...

The shielding range of the signal jammer is not fixed?

When buying signal jammer , the shielding range of signal shielding is what many customers want to know. Is the shielding range of the signal shielding device fixed? Naturally not. During operation, the signal screening machine scans from the low-end frequency to the high-end frequency of the chann ...

The manufacturing process of the mobile phone signal jammer manufacturer is very special

There are various models of mobile phone signal jammers on the market with different prices. Of course, no matter what you buy, you will get a penny. When we buy a mobile phone signal jammer, we must also choose the manufacturer of the mobile phone signal jammer. Although the production process of ...

Four steps to teach you how to choose a mobile phone signal jammer

Mobile phone signal jammers are produced to reasonably avoid and interfere with mobile phone related signals, such as GPS, WIFI, 2G, 3G, 4G or future 5G. Mainly used in school examination rooms, prisons, detention centers, etc. In order to ensure the fairness and justice of the examination, the hig ...

Small knowledge of signal jammer

Nowadays, all kinds of jammers are common in the market, and everyone's understanding of jammers is uneven. What should we know about the jammer? The first point: Everyone thinks that the higher the power of the mobile phone signal shielding setting, the better the shielding effect. In fact, this i ...

The mobile phone signal jammer can solve the hidden danger of disturbing the order of the examination room

In today's mobile Internet era, smart phones are very popular. However, things that bring convenience to people's lives and are used for illegal activities emerge in endlessly. Take the test as an example. In the past, cheating relied on cheat sheets, smuggling notes, and even writing formal questi ...

Brand awareness of mobile phone signal jammer determines equipment reliability

As more and more industries have a strong dependence on shielding equipment, equipment purchase has become a core element that cannot be ignored. After all, the shielding technology required by different signal types is also different. From this perspective In other words, it is still necessary to ...

Portable mobile phone jammer-a fighter to prevent mobile phone pollution

The mini cell phone jammer has a design, which is very convenient to be similar to a mobile phone. You don't need to hide it, because everyone will think of it as a cell phone, not a jammer. The working principle of this mini-phone jammer is similar to other jammers: it can block the signal transmi ...

Monitoring blocker and C++ language association

Gone are the days when only computer science engineers were needed to develop software and electrical engineers only needed to deal with camera signal jammer hardware. Therefore, non-computer engineers, especially electrical engineers, have a growing tendency to learn at least one programming langu ...

The application of mobile phone shielding technology in high frequency transformer

High-frequency transformers and inductors used in power supply systems, such as flyback transformers used in cathode ray tube (CRT) displays, usually have a strong radiated magnetic field, but because the working frequency of this transformer is consistent with the line deflection frequency of the ...

Strengthen management of mobile phone signal of company jammer to improve performance

Have you bought anything online? I believe that most students have bought it. With the development of the Internet, shopping online will become more and more widespread, especially the development trend of Taobao shopping website is unstoppable, but this has now affected the work efficiency of mode ...

What factors can affect the stability of signal shielding equipment?

The influence of external and environmental factors causes different signals: 1. Because the base stations of China Mobile, China Unicom, and China Netcom have different power and channel numbers, and the distance between the base station and the prison, the size of other nearby buildings, topograph ...

On the Necessity of Using Mobile Phone Signal Jammers in Important Occasions

Nowadays, mobile phones are becoming more powerful and smarter. They can not only make calls and send text messages, but also social chat. Some social softwares are also more powerful. They can do live broadcasts, they can receive video with each other on the spot, and they can also record... Then ...

How to make the 4G signal jammer play a role in the meeting?

In some situations, when we need to enjoy a quiet environment, what we hope most is not to be disturbed by mobile phone ringtones, such as making requests in church, meeting in company, resting at home, perhaps in theaters and many other occasions. In order to end this policy, signal shielding equi ...

Establishment and protection of mobile phone signal shielding system in campus examination room

Mobile phone signal jammer is a relatively professional modern communication signal shielding tool, which is often used by campuses to avoid high-tech cheating. This puts higher requirements on mobile phone signal shielding skills. Therefore, how to lay out a signal shielding system has become a ke ...

Is it okay to have a mobile phone jammer per classroom?

The college entrance examination is coming soon, the key admissions, qualification certificate examinations or final examinations all need to install mobile phone shields to shield the signals of electronic devices around the examination room and avoid possible electronic cheating. So, how large ca ...

Answers to some frequently asked questions about mobile phone signal jammers

1. Will the cell phone jammer affect the normal operation of other electronic products? Answer: No. This is because the electromagnetic data signals transmitted by the equipment fall completely within the working frequency band of mobile phones specified by our country, which will only block mobile ...

Why is a mobile phone shielding device installed?

If the mobile signal is not good, a cell phone jammer device may be installed. The purpose is to let everyone install broadband. Is this true? There are many people who are suspicious of this problem, and friends who live in the old city can observe a lot. I don’t know if you have noticed that som ...

What should the prison consider when choosing a mobile phone signal jammer?

What should I consider when choosing a cell phone jammer in a prison? Let me introduce it to you. One: effective shielding The so-called effective shielding refers to whether the shielding effectiveness has blind spots and leaks. In some prisons, there may be transmitting communication base station ...

Installation skills of mobile phone signal jammer

Everyone is not unfamiliar with the use of cell phone jammer . In the examination room environment, in order to achieve sufficient fairness and justice and avoid cheating in the test, mobile phone signal jammers will be set outside the exam room. In order to achieve a better shielding effect, what ...

Is the jammer easy to crack in the test room?

Nowadays, exam rooms have jammers, but some people want to use some methods of preferential treatment and even look for system gaps at all costs. Is the signal jammer in the test room very easy to decipher? There has to be a lot of people wanting to decipher, but it is recommended that not everyone ...

Swedish prison introduces jammers to prevent criminals from using cell phones

France and the UK have introduced cell phone jammer in prisons. The pilot project of three Swiss prisons will also be completed by the end of July. Repeated use of cell phones by criminals has become news. Last October, the case of Mohamed Achraf (Mohamed Achraf) occurred in Switzerland. He was a t ...

Mobile phone detection location capture system

When a mobile communication terminal passes through the device, the device automatically silently collects the terminal's unique identification code information (IMEI, IMSI, etc.) and stores it in the central storage server. The central storage server can perform calculations on the collected infor ...

Four improvements help the security of the safe prison

1. Environmental detection, pilot frequency application The core equipment of MDPB series cell phone jammer system adopts pilot frequency interference technology, so as to cover a wide range with smaller power. A complex environmental variable parameter model is established in the system database. ...

Product advantages of intelligent public mobile phone signal jammer

Ten times or more: Compared with the traditional jammer, the intelligent public network signal control system has the same output power of 10W, and the shielding distance of the intelligent public network signal control system is more than ten times that of the traditional jammer. Human body harmle ...

Mural Smart Phone Signal Detection Jammer

1. Performance The device adopts a seven-channel micro-power transmission (2W per channel), a high-gain directional transmitting antenna design scheme, and a low-gain 7dbm per channel. Everyone knows that in the field of wireless signal transmission, the shielding distance of each gain of 3dbm will ...

The effect of mobile phone signal jammer on college entrance examination

At present, there are many exams in society, and the most influential one is the annual college entrance examination. This is the door for thousands of students to enter the halls of institutions of higher learning, and a bridge for countless families to place infinite hope. There are also entrance ...

The warden thinks cell phone jammers are very helpful

Oklahoma City-Thousands of illegal mobile phones fall into the hands of prisoners who use devices to commit crimes. However, prison officials testified on Monday that the best way to prevent this from happening is to prohibit the use of cell phone jammer . Prison officials in Oklahoma and South Car ...

The Office of Academic Affairs purchased classroom mobile phone shielding devices

Everyone is not unfamiliar with cell phone signal jammers. During the middle and high school exams, they were already familiar with this. The school placed the jammer in the classroom to prevent students from using their mobile phones to search for answers on the Internet during the exam. How does ...

Signal jammers are vigorously promoted and put into use in the examination room

Examination signal jammers have been vigorously promoted and put into use. Examination signal jammers can be seen in the examination rooms of major schools. Why do more and more schools choose to install this kind of equipment? In fact, it will be popular only when there is demand. It is precisely ...

How to choose and install signal jammer in student dormitory?

In recent years, with the rapid development of mobile phones, it is not uncommon for students to use mobile phones to affect their lives and studies. Many teachers who inspect the dormitory at night said that they often find some students use their mobile phones to go online in the bed, some even i ...

Signal jammer specially developed by international advanced shielding technology

The 6-channel upgraded cell phone jammer is a mobile phone signal jammer specially developed and produced by adopting international advanced shielding technology to meet market demand. The equipment has undergone a brand-new upgrade, changing from 5 channels to 6 channels increases the shielding ef ...

Medium power eight-channel mobile phone signal jammer

The mid-power full-band signal jammer is a high-tech product that our factory adopts foreign advanced technology, in accordance with the continuous development of communication standards, and carefully developed according to the actual situation of foreign mobile communications. It can be used in a ...

Introduction of radio frequency band 3

Understanding the propagation law of the radio wave band helps us use signal jammer . 8. 2m frequency band (144.00～148.00MHz) This is a typical VHF frequency band, a very active local mobile communication frequency band. There is basically no reflection on the signal ionosphere of this frequency b ...

Allocation and propagation of radio frequency bands 2

Understanding the propagation law of the radio wave band helps us use signal jammer . 5. 15m frequency band (21.00～21.450MHz) This is another entry frequency band for shortwave beginners, and it is also a good DX frequency band. This frequency band is mainly due to the reflection of the F2 layer o ...

Allocation and propagation of radio frequency bands

The radio frequency band is divided into many discontinuous bands from low frequency to high frequency. Commonly used are HF frequency band, VHF frequency band and UHF frequency band. The higher frequency microwave frequency band is only used for amateur satellite communication and microwave commun ...

Installation process of signal jammer

1. Without setting control lines, installation and construction are simpler: The whole system takes the power carrier as the technical core. There is no middle wiring (the power cord that supplies power to the shielding layer does not need to be installed middle wiring), and there is no need for wi ...

The difference between built-in antenna jammer and external antenna mobile phone signal jammer

Of course, in terms of energy saving and heat dissipation, Shankino's built-in cell phone signal blocker cannot be compared with Shankino's external cell phone signal blocker. From the external structure point of view, the built-in cell phone jammer device integrates the transmitting antenna, power ...

High quality handheld portable jammers for sale

As the different types of cell phones have brought much convenience to people's daily lives and offered many entertainments in our spare time, it seems more and more people can not live without the cell phone aside. Hence, we see that whenever and wherever we are, the phones always appear in our ey ...

Mobile jammers can make smartphone data more secure

Security researchers have found that they have seen an important change in the fact that hackers would rather attack your smartphone than your computer. Your smartphone stores your more important information and your smartphone's data security is more vulnerable to hacking. You can use the cell pho ...

Application area of mobile phone signal jammer

Following the development trend of modern science and technology, mobile terminals such as mobile phones are also constantly developing trends. Most people have one or more mobile phones. Because it is very convenient to find someone at any time, you can play mobile games or listen to music. The pr ...

The use of mobile phone signal jammer in gas station

The equipment at the gas station is controlled by a computer. The signal of the mobile phone will affect the normal operation of the equipment and cause inaccurate measurement. More importantly, sparks will appear during the call from the mobile phone, which can easily cause a fire and cause an exp ...

The use of mobile phone signal jammers should be safety-oriented

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 signal jammers, some are to prevent cheating in exams, and some are to quiet the meeting place or keep the meeting information confidential. These ar ...

Installation and classification of mobile phone signal jammers

Mobile phone signal jammers are also called small repeaters and mobile phone companions. The signal amplifier is known from its name to increase the data signal. A professional amplifier that enlarges the mobile signal is called a mobile phone signal amplifier. The enhancer is used to enlarge the m ...

Mobile phone signal jammer interferes with the safe operation of high-speed rail

On October 13, Baoding Radio Management Bureau received a complaint about radio interference from the Baoding workshop of the Beijing communications section of the railway, stating that from the afternoon of October 12, the high-speed railway GSM-R communication system of Baoding East Railway Stati ...

How do jammers protect radio signals?

The signal jammer of the mobile phone scans during the working process at a certain speed from the low frequency band (the channel from the base station to the mobile phone) to the high frequency band and forms interference when the mobile phone receives the message signal that the mobile phone can ...

Long time no see signal jammer

Some people have found out, and some people haven't found out: The first teaching and Yifu Building of the South School have installed cell phone signal jammers. As a editor of a lower-headed party, I found out that WeChat could not be sent out after going through a teaching session yesterday, but ...

The difference between communication jammer and recording jammer

The mobile communication jammer targets the uplink and downlink channels of the mobile phone system, using techniques such as frequency multiplication, frequency division and frequency hopping filtering to analyze the required shielding frequency. . When the shielding instrument is in working condi ...

Cell phone signal and interfering signal

The signal of cell phone and jammer will also be affected to some extent. Technically speaking, the quality of mobile phone signals is related to the following factors: 1. The distribution of the location of the base station (i.e. mobile communications transmission tower), such as an outdoor statio ...

Jammer: you can customize according to your needs

Almost everyone now has a cell phone and the number is increasing. These are used for different purposes. Few people do not use them for personal reasons. You have to understand that you want to use something and not overdo it. In some places where cell phones should not be used. You benefit from u ...

Do not damage the freedom of communication of others when using jammers

Signal jammer (also known as signal jammer / disconnector / suppressor / cutoff / isolator / confidential conference information machine) is our factory adopts foreign advanced technology, mainly for entrance examination to domestic college, adult college entrance examination, self-study examinat ...

Research on the working principle of cell phone jammer

1. Overview Cell phone signal jammers are also called cell phone signal blockers, cell phone signal jammers, conference security devices, etc. communicate normally, thus achieving the goal of interference. The abuse of mobile phone jammers led to an increase in complaints of public communication int ...

Add the multi-function jammer to the cart

Happy life is peace of mind. Peace of mind lies in a calm environment. Quiet environment away from different kinds of noise. In the force of noise, phone ringing can be popular and boring phone ringtone, then how to calm my mind towards your happy life? It will provide you with the best choice. Lea ...

Use a mobile phone blocker to prevent texting while driving

There is evidence that texting while driving is more dangerous than drinking and driving, and almost everyone thinks this is a huge problem that must be stopped. It is now believed that distracted driving involves more than 50% of juvenile crashes. But the fact is that many people-especially teenag ...

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