Welcome To Dojammer Here is the most professional signal jammer store, we guarantee to provide you with quality jammer products

Professional Signal Jammer Information Sharing

We will provide the latest information about the jammer. Here, you can view all the information and knowledge about jammers. Among them are the theoretical analysis of jammers and how to use them, as well as the latest news about all jammers. Hope to bring you useful help.

Updated List Of Latest Jammer Blog Posts


Mobile phone signal jammer indoor and outdoor use distance

The effective shielding distance of the cell phone signal jammer is the indoor distance. There are not too many obstacles in the room, and there is a certain distance from the base station. If you use a desktop multi-antenna signal jammer indoors, the shielding effect will be better.

Are high-power handheld mobile phone signal jammers good?

Do not put the hand-held mobile phone signal jammer into water or close to the fire source, and do not use the jammer in places with excessive humidity, overheating, high voltage or high radiation.

Can I block other people's mobile phone signals through the APP?

As a manufacturer of mobile phone signal blockers, we are often asked: Can we block other people's mobile phone signals through APP software? Instead of using our mobile phone signal jammer in hardware mode to achieve it. So, how do we answer and analyze this question?

Affected by the epidemic, the popularity of the US consumer security market has declined

In addition to the impact of the new crown virus, in recent years, smart home and DIY systems can meet monitoring applications, both of which also reduce users' dependence on security manufacturers. Analysts at Parks Associates said: "2019 was the best year for consumer security progress, but in 2020 the industry must be prepared to deal with the impact of the new coronavirus.

The significance of ecological platform construction for the security industry

It can be seen that the security industry chain is very large and complex, and even leading companies cannot cover everything. If it is said that in the past, security companies fought single-handedly to gain a share of the security market, but now, this traditional tactic is outdated, and the further back, the narrower the road.

Cell Phone Signal Jammer, Cell Phone Signal Jammer, Surveillance Camera

Imported devices, the design of the slow-start circuit can avoid the sparking phenomenon caused by the mechanical switch, and the working stability is good. It can cut off the GSM/CDMA/AMPS/DCS/PHS mobile phone signal within a radius of 5-50 meters, so that the mobile phone cannot make and receive calls.

How to choose an economical and practical mobile phone signal jammer with 5G signal shielding function?

The mobile phone signal jammers purchased by schools in previous years, because 5G was not launched when they were purchased, so these signal jammers can no longer be used for 5G signal shielding in the current test room signal shielding process, which makes school test room users face how The problem of upgrading or replacing the original cell phone signal jammer.

Why is Apple's mobile phone signal not as good as Huawei's?

It determines the quality of the mobile phone signal, which actually includes some software and hardware aspects. The hardware part, including baseband, RF front-end, antenna, etc., affects the signal strength of the mobile phone and determines the quality of the signal, in addition to these reasons , and some software algorithms work in it.

UAV Countermeasures: Trends in Counter-UAV Technology

Before the Spring Festival in 2021, a set of drone jammer system integrating detection and countermeasures was successfully tested at a railway station in Guangdong and ensured the low-altitude safety of the railway station during the Spring Festival. big effect.

Can the drone jamming defense system be used continuously for a long time?

Some important confidential places or key government departments choose to purchase and install a drone jammer system, the purpose is to effectively prevent illegal intrusion of drones, prevent leaks or prevent malicious attacks by drones, then drone interference defense Can the system be used continuously for a long time?

One article to understand the ISM frequency band

In addition, many new smart home electronic products and hobbyist electronic products use Zigbee technology operating in the 915MHz and 2.4 GHz ISM frequency bands to complete power consumption and short-range communication between devices.

The role of mobile phone signal jammer

To put it simply, the function of the mobile phone jammer is to send out interference signals, which seriously damage the local magnetic field, so that the signal cannot be transmitted normally, and the mobile phone cannot normally receive the signal from the base station.

The principle of mobile phone signal jammer

When the signal jammer is working, it sends out interference signals to interfere with the channel frequency band of the base station. The interference signal increases the bit error rate of the channel and reduces the signal-to-noise ratio of the channel, so that the mobile phone cannot decode the information sent by the base station normally.

Guidelines for the Security Protection of Personal Information on the Internet

Recently, the Cyber ​​Security Bureau of the Ministry of Public Security, the Beijing Network Industry Association and the Third Research Institute of the Ministry of Public Security jointly researched and formulated the "Guidelines for the Security Protection of Personal Information on the Internet" (hereinafter referred to as the "Guidelines").

Precautions for purchasing microcomputer information leakage protector online?

It is necessary to choose a manufacturer that specializes in information jammers or information leakage prevention equipment, and at the same time, whether it is considering better price or quality assurance, the source company should be selected first, so as to ensure that the purchase of microcomputer information leakage preventers can achieve the same effect and price. expected.

Discussion on the Standard of Cell Phone Jammer System in Prison Detention Center

Because the prison system is different from conference rooms, theaters, examination rooms, etc., the mobile phone shielding system running in the prison requires up to 24 hours of uninterrupted operation, cell phone jammer, which requires the system to have considerable reliability.

Is the portable handheld cell phone signal jammer effective?

When the phone is far away from the shielding range, it can resume normal use Portable cell phone signal jammers are imported ICs and self-developed, especially for small places at home and abroad that require special security and confidentiality, such as confidential offices, negotiation rooms, mobile vehicles, and mobile political and business circles.

How to install the car hand-held mobile phone signal jammer?

The vehicle-mounted hand-held mobile phone signal jammer is a broadband transmitter with a transmission frequency of 870~880MHz, 930~960MHz, 1805~1920MHz, 2010~2145MHz, 2400~2500MHz, 2300~2370MHZ, 2555~2655MHZ (excluding GSM, DCS, PCS, 4G uplink operating frequency), is a wireless device used to cut off the signal between the transmitter (base station) and the mobile phone, which can shield the 2.4 wireless signal.

How many car GPS signal jammers do you have?

The range of GPS jammers can be from 5 to 15 meters, which can take into account the cars and buses of cars and vans, since the location tracker is generally installed in the car cab inside the car. After starting the connection according to the car's cigarette lighter, the device starts to work immediately and causes wireless communication noise (interference) in the range of 1500-1600MHz (L1/L2) within 15 meters and a half.

Do cell phone blocking devices work the same way indoors as they do outdoors?

The shielding equipment is definitely different in the outdoor and outdoor environments. We do not recommend using the same equipment in two different environments, especially the indoor shielding equipment is used in the outdoor environment, because the outdoor is relatively complex and harsh.

What is the appropriate interference distance for a handheld anti-drone jamming gun?

In such an application scenario, the jamming distance of the handheld anti-drone jammer gun is very interesting. So what is the appropriate jamming distance?

Installation of wireless signal jammers as technical precautions in classified places

In order to prevent the internal information from being stolen by the outside world, which leads to the occurrence of secret leakage incidents, many technical preventive measures are adopted in secret-related places, and the installation of wireless signal jammers is one of these technical preventive measures. So how does the wireless signal jammer ensure the security of information protection in classified places? Here we discuss this issue.

Please note that "drones" must not fly around along the railway

In recent years, the phenomenon of endangering railway safety due to the lifting and releasing of drones has occurred from time to time. Lifting and releasing drones around the railway can easily bring hidden dangers to the operation safety of high-speed railway cable facilities and high-speed railway trains.

Can prison guards block cell phone detection?

Due to many reasons, the expert group found that the shielding systems of a large number of prisons across the country are not very effective. What's more, in order to cover up the defects of their own shielding technology to confuse the public, there has been a trend of "detection shielding" in the industry. Without the guidance of professionals, it is suggested to be wrongly guided to use "detection shielding" technology to solve the cell phone jammer needs of prisons.

How to build a high-quality "mobile phone signal shielding system" in the prison area?

The mobile phone signal jammer system is a relatively professional modern communication signal shielding technology, especially in the special environment of the prison, which puts forward higher requirements for the mobile phone signal shielding technology.

Overview and Usage Characteristics of Cell Phone Signal Jammers

The cell phone jammer is not an unknown device, it can be used in many different places to effectively prevent cell phone leakage and eliminate cell phone noise pollution, but there are still many users who have detailed equipment knowledge and are not known , so I'll introduce it next.

How to make the cell phone signal jammer signal stronger?

Making the signal of the cell phone signal jammer stronger is a step that every user wants to operate, but many users do not understand it, so the detailed content will be introduced next, so that more users can operate it.

What you need to do before installing the cell phone signal jammer device

Before the cell phone signal jammer is installed, in order to better ensure the use efficiency and operation safety of the equipment, we need to do the pre-installation preparations, so the corresponding operations are introduced next.

How to maintain smartphone network security?

The traditional way of security work in the terminal era is difficult to deal with the maintenance of unaware threats. In addition, different software will have different application intentions in different regions. Good or bad software tools can no longer be identified by a set of characteristics.

What control methods can drones have?

UAV interference is also a mainstream technology at present. The remote control signal of the UAV is blocked by high-power transmission, so that the UAV loses control. Generally, the UAV can be shot down directly, and the intelligent UAV can also be destroyed by an unmanned aerial vehicle. The drone interferes with GPS and Beidou signals to prevent the drone from returning.

Can a wireless signal blocker block wired cameras?

The main function of the wireless signal blocker is to block the commonly used wireless signals of various frequency bands. The types of these wireless signals include mobile phone signals of all formats, WIFI signals, Bluetooth signals, remote control signals, wireless image transmission signals and wireless data transmission signals.

Can block students' mobile phone signals Can't block students' right to speak

During the National Day, mobile phone signal jammers were installed on the walls of the dormitory buildings of Doumen No. 1 Middle School, and at the same time, card phones were installed in each dormitory. It seems that the school will restrict students from using mobile phones after the holiday.

Will bad temperature endanger drone countermeasure equipment?

The commonly used radar of phased array system belongs to the collaborative innovation technology of military weapons. For example, British Aegis ships are known for their choice of phased array system radars.

Can individuals buy and use cell phone jammers?

Our company is a professional manufacturer of cell phone jammers. During the production and operation process for many years, there are often some individual customers who want to consult and purchase cell phone jammers from us. Then, if the cell phone jammers are for personal use, can you directly After purchasing, are there any relevant laws and regulations that restrict the use of mobile phone shields by individuals?

What are the advantages of high-power mobile phone signal jammers?

The high-power mobile phone signal jammer is a new product developed by using a special advanced technology approach according to the needs of the market. It can automatically form a shielding magnetic field within a specified range, so that the mobile phone cannot be played and connected, so as to achieve the mandatory ban of mobile phones. Purpose.

State Grid installs and builds drone countermeasure equipment

The second is the direct destruction category, including the use of laser weapons, the use of drones against drones, etc. The third is monitoring, mainly by hijacking radio control and so on. The second technology is mainly used in the military field. Wufeng Technology is China Southern Power Grid's first drone jammer equipment.

Drone counter guns guard in public places

It is understood that in recent years, due to the low cost, easy acquisition and simple operation of consumer drones, commercial drones have rapidly penetrated into the civilian field, the number of users has gradually increased, supervision is difficult, and they are easy to be used by criminals. to great pressure.

WLAN jammer Full 360° shielding signal

WiFi jammers that support radio waves and cell phones are mainly used in security installations, hospitals, schools and private schools where the use of cell phones is prohibited, as well as in banks, halls conference rooms, libraries, stores and schools prohibited. universal.

WiFi and Bluetooth jammers will block the signal from the tracking chip

Want to know how to get rid of this powerful tracking? It won't be as easy as you hope, but it is possible. You can combine wave jammer, WiFi jammer and Bluetooth to block signal from Broadcom BCM4752 tracking chip. You must also interfere with the NFC signal. Only when all those radio signals are protected can you safely conduct this nifty hunt.

How to choose a mobile phone signal jammer device and share the precautions

1. After the demonstration of the product, you can inspect the application, operation status and actual effect of the product in other similar projects;

2. During the inspection, it is better to bring the mobile phone into the shielded area after approval to verify the shielding effect.

Today's increasingly popular high-tech equipment - drone countermeasure equipment

We all know that drones are widely used in people's lives. So, with the advent of drones, our lives are becoming more and more transparent. But in addition, some drones are used in some areas that should not be used. Therefore, the importance of UAV jammer equipment exists in the following aspects.

Explain the advantages and disadvantages of the installation of common equipment for signal jammers

When there are too many cell phone signal jammers, especially after multiple buildings in the prison area are shielded, it is difficult to turn on and off in a centralized manner; even if the power cord is arranged uniformly, a special person is required to be responsible for turning on and off on time.

What is the minimum shielding range of a cell phone signal jammer?

The shielding range of the mobile phone signal jammer is based on the power of the jammer. If it is tested in the field, the shielding range is different according to the strength of the local environmental signal. For example, the weak shielding range of the indoor signal is large, and there are GSM base stations for outdoor use accessories. Then the GSM signal is close to the outdoor shielding range!

How can the cell phone signal jammer avoid signal interference?

Band cracking method. Because the working principle of the school's cell phone jammer is to block the mobile phone by interfering with the mobile phone signal in the specified band, as long as the receiving and transmitting frequency of the mobile phone is modified, it can be prevented from being blocked.

What are the accessories of the mobile phone signal jammer?

Shielding equipment is very popular right now, and there are many different types of shielding equipment on the market. Have you heard of jammers? Maybe not. Then, this article will focus on a powerful signal jammer, 15W high power 5 antenna full signal jammer, after reading the article, you will know why it is powerful and stands out among all jammers.

Is the metal shell mobile phone shielding instrument good?

Mobile phone shielding device with metal shell, it means that the body of the mobile phone shielding device is a metal material, usually an aluminum profile, and the metal material is used both as a shell and a radiator. So is this kind of metal shell mobile phone shielding instrument good?

The application site of mobile phone signal jammer is widely used in mobile phones today

In today's society, mobile phones have increasingly become an indispensable tool in people's work and life. People walking down the street with their phones in their hands can be seen everywhere these days.

The scope of application of the UAV system

LSS·UAV systems are readily available to anyone as a commercial product, posing an immediate threat to critical public infrastructure and military equipment. Military exclusion zone measures to keep friendly forces and critical infrastructure safe are often concentrated in areas requiring protection.

The mobile phone signal jammer cheater teaches you how to weaken the wireless network signal

1. Use more metal utensils, which will weaken the signal but not shield it

2. Generally, thicker walls or walls made of stone also have the effect of shielding the signal.

3. The most common mirrors in the home have the function of reflecting wireless signals, but the cost is high and the risk is also great.

Is there a big difference in the effect of mobile phone signal jammers used indoors and outdoors?

The conclusion we give is: If you use the same mobile phone signal jammer, when used indoors and outdoors, the effect of the two will be very different! Moreover, in these two usage environments, low-power mobile phone shielding devices are generally used indoors, and high-power mobile phone signal shielding devices must be used outdoors.

Does the mobile phone signal blocker need to be adjusted?

Many places need a signal shielding device, but many people do not know the installation method of the signal shielding device. Some people think that the mobile phone signal shielding device can be used directly by connecting to the power supply, but some people think that the frequency needs to be adjusted, and the signal shielding device works It's hard to tell whether or not.

Is it necessary to have a Wifi signal jammer?

It is necessary to use a Wifi blocker, on the one hand to ensure the safety of the network, on the other hand, it can control the time children use the Internet, do not indulge in the virtual world, it will cause serious damage to their body and mind. In addition, the radiation of the wifi transmitter will affect the For human health, it is not suitable to use it for a long time. You can open the wifi blocker to block the wifi signal.

Can the exam room isolator be powered by DC?

When the college entrance examination and high school entrance examination are held as scheduled every year, some schools will be designated as examination rooms. During the construction of standardized examination rooms, these schools will purchase and install a large number of examination room shields. Then, a large number of examination room shields will be used in the power supply. How to solve it?

Hidden Mini WiFi Bluetooth Jammer is Easier to Use

Want to cut off WiFi and bluetooth without anyone else knowing it was you that cut the signal, any good ideas would help to achieve the goal? Now the answer is of course only obtainable with a goal like a hidden mini bluetooth jammer, just here Shenzhou Mingda can provide you with a good opportunity to get a high-quality mini WiFi jammer.

Can the shielded signal of the signal shielding device achieve accurate coverage?

There are often some customers who put forward special requirements for the use environment when consulting and purchasing our signal shielding instrument. It can be limited to a small room, outside the door or behind a wall, it must be ensured that there is no influence of the signal shielding device at all.

The superposition of the number of 5G jammers cannot represent the superposition of the shielding effect of mobile phones

A customer installed a 5G jammer in a large conference room environment, and the feedback was that the effect of mobile phone shielding is indeed there, but because the conference room is too large, if only one 5G shield is installed, Certainly cannot achieve complete coverage of mobile phone shielding signals.

How to use mobile phone signal jammer reasonably and compliantly?

When using a communication signal blocking device such as a mobile phone signal shielding device, it must be reasonably compliant. According to relevant laws and regulations, if the current communication signal causes large-scale interference, it is illegal. Therefore, in order to ensure that the other two do not Delayed communication, signal shielding requirements, must be reasonably observed when using mobile phone signal shielding devices.

16 antenna jammers with increased security

It is inconvenient to use with a mobile phone in places where conversations are not possible, e.g. B. in trains or restaurants. In this case I activated the jammer and sent it out of the service area. This is interesting because I usually call my phone and start shaking the lid. Today when I was reading a book on the train, people around me started shaking my phone.

Wireless Camera Jammer Monitors Exam Room Center

They used the curiosity of candidates and parents to wait for the money before disappearing. Cell phone jammers The installation also disrupted residents around the School that protested that the school can only be opened during the day when the pupils he are in class and opening them at night prevented their normal communication.

Why do I still have a signal after installing a mobile phone signal jammer?

In addition to the problem of co-channel interference, the mobile phone signal screener also has some tips to improve the quality of the wireless network at home. I hope it can be helpful to everyone. Now that most residents have deployed wireless routers in their homes, channel conflicts are inevitable. If we find instability or lag when using the network, we might as well change to a channel with fewer access points.

The automatic mahjong machine in the chess and card room also needs to rely on the signal jammer to prevent cheating

Some chess and card room owners even installed signal jammers in their chess and card rooms. Why? It turned out that the bosses also have a last resort. The use of signal blockers is not used to block mobile phone signals, but for those automatic mahjong machines, mainly to prevent some malicious people from using wireless remote controls to secretly control the automatic mahjong machine, thereby changing the card deal and the result of the game.

The use of hand-held mobile phone signal jammers in the examination room

The college entrance examination mobile phone signal jammer is equipped to prevent candidates from cheating using mobile phone communication. After the mobile phone signal jammer is turned on, it will interfere with the reception and transmission of communication signals, so as to prevent candidates from using mobile devices to cheat and violate regulations.

Can the portable signal shielding instrument be adjusted to improve the coverage of shielded signals?

First of all, the transmit power of the portable signal shielding device itself is fixed. That is to say, the strength of the shielded signal it emits is relatively stable, and it will not fluctuate. The error of the wall obstacle, etc., will directly affect the effective shielding distance of the shielded signal.

Can the mobile phone signal blocker of the drag box type block while dragging?

The cell phone signal jammer, which is often referred to as a portable mobile phone signal jammer, such as our SMa-818T5B, which uses the American Pelican military standard tow box as the installation carrier of the mobile phone signal jammer, such as The appearance structure is convenient and portable. It is very convenient and quick to drag the mobile phone signal jammer like a suitcase.

How to effectively improve the communication distance of the walkie-talkie?

Improving the antenna system is one way to improve radio performance. Consider how a radio signal propagates: it travels in a straight line and may be blocked by buildings, hills, trees, or any other natural or man-made obstacle. To optimize and maximize range, the antenna must be as high as possible. This improves the line-of-sight of the walkie-talkie and produces a better, stronger signal. With an effective antenna system, sometimes all the user has to do is move to a higher position to maintain a strong communication connection.

Where should the mobile phone signal blocker be installed in the examination room for the best shielding effect?

The mobile phone signals in the classroom of the examination room are all remote base station signals, and are transmitted to the classroom through doors and windows. Then, the most reasonable installation location is to select the installation location of the mobile phone signal jammer in the examination room. The middle of the wall on the side of the base station, so that the shielding effect of the shielding device can be maximized.

How to realize the concealed installation of the conference room mobile phone jammer so that it is not easy to be noticed?

Many customers who need to install mobile phone jammers in conference rooms mentioned that one of the biggest concerns is: how to install mobile phone jammers in conference rooms more concealed? Therefore, it is hoped that after entering the conference room, the person participating in the conference will not easily find that a signal shielding device is installed in the conference room.

Jammers stop illegal drones

The importance of drone jammers for illegal drones is obvious. At the same time, everyone knows that black drone thefts happen from time to time. Small enough to snoop, big enough to steal state and military secrets, small enough to fall and injure people which will result in airport closure.

Applicable places for wired anti-eavesdropping detectors and wireless anti-eavesdropping equipment

The correct use of anti-eavesdropping detection actually depends on the different anti-eavesdropping devices, wired and wireless, and large and small. Generally speaking, wired anti-eavesdropping devices can be used in ordinary environments because there are fewer sources of interference with the device's signal and the security settings are not very good.

How is the shielding distance of the mobile phone signal jammer affected?

The mobile phone shows the phenomenon of searching the network, no signal, no service and so on. The shielding distance of the cell phone signal jammer produced by dojammer Electronics Co., Ltd. is closely related to the distance of the base station.

What kind of power supply should the mobile phone signal shielding instrument be equipped with in the 5G era?

In the 2020s, 5G communication was widely promoted and applied, and the corresponding 5G mobile phone signal jammer device also kept pace with the times and developed synchronously with the pace of 5G. Like the signal system supported by mobile phones, the current 5G mobile phone signal blocker needs to block all 2G\3G\4G\5G signals as well as WiFi and Bluetooth at the same time.

What are the ways to improve the shielding effect of mobile phone shielding equipment?

After the mobile phone shielding device is turned on, the area covered by the shielding signal it emits usually ranges from tens of square meters to hundreds of square meters, while some high-power mobile phone shielding devices can cover thousands of square meters. , or mobile phone signals within a radius of several hundred meters will be blocked.

What are the common vandalism methods of mobile phone jammers?

Destruction of the antenna: This is mainly for mobile phone jammers with external antennas. Some people who are resistant to the use of mobile phone jammers, once they see the antenna, the first thing that comes to their mind is to unscrew the antenna and throw it away. This is a relatively crude form of damage, and once the antenna is thrown away, it is very difficult to retrieve.

Will the frequency jammer interfere with the precision power supply?

Some factory or workshop customers express this very concern when purchasing and using frequency jammers: Will the jammer interfere with the electrical equipment in the workshop, especially some of the precision power supplies?

What is the difference between military jammers and civilian jammers?

The prison needs to shield the surrounding environment of the building (distance and building structure from other non-shielded buildings), so the use area, scope and floor structure of the prison need to ensure that the shielding area is very complex and special. In order to ensure the effect of the area to be shielded, while ensuring the normal calls in the shielded building and surrounding non-shielded areas.

What anti-eavesdropping equipment should be used in confidential meeting rooms?

In order to obtain a high degree of confidentiality in the work of the Disciplinary Inspection Commission, Anti-eavesdropping needs to be carried out during normal work. The confidential conference room has become a place where they often meet, and it is also a place to do anti-eavesdropping work. Some professional equipment may be used here.

The field of mobile phone signal jammer

Why does the cell phone signal jammer purchased by the Provincial Prison Administration cause such a big disturbance to the surrounding public communications? Let me analyze it a little bit, and if there are any deficiencies, I hope you guys will correct it.

How did the signal interference come about?

Under the condition of no uplink interference, the base station can receive mobile phone signals from far away. When uplink interference occurs, the mobile phone signal needs to be stronger than the interference signal in order to communicate with the base station. Therefore, the mobile phone must be closer to the base station.

Precautions for family purchase and use of signal shielding instrument

Parents of children in some families often come to inquire about the purchase of a signal shielding device, which is mainly used in their own indoor environment, that is, they want to use the signal shielding device to limit children's excessive use of mobile phones or tablet computers, etc., hoping to cut off the signal and cut off the network. way, so that children are no longer addicted to games or the Internet.

Design and Difficulties of Electromagnetic Interference Shielding

Since the seam reduces the shield's conduction rate, the signal jammer power also decreases. It should be noted that the attenuation of radiation below the cutoff frequency depends only on the length-diameter ratio of the slot, for example, 100dB attenuation can be obtained when the length-diameter ratio is 3.

Prison "mobile phone situation": black boss posted a circle of friends in prison, criminals used mobile phones to sell drugs and hunt for beauty

According to a person familiar with the matter, also in Jingzhou Prison, a criminal used his mobile phone to direct drug transactions during his sentence, making 297 calls and committing a major case of smuggling and transporting drugs.

Counter UAV: You must first know the flight steering principle of quadrotor UAV

According to Newton's third law, the action of forces is mutual. In order for the plane to go up, it needs upward force. The rotor rotates continuously to make the air flow rapidly, just like an electric fan blowing a gust of wind, and the rotor squeezes the air to make it flow downward. Instead, the air has an upward force on the rotor.

What is the current mainstream form of 5G shields?

By 2022, 5G communication technology has been widely popularized, and the 5G shielding device for 5G signal shielding is also advancing with the times and developing synchronously. Continuous upgrade iterative process for signal masking.

How to protect and beautify the outdoor antenna of the mobile phone signal shielding instrument?

The lower part of this high-power mobile phone signal shielding instrument protection device is made of stainless steel, which is used for stable installation on the cement layer or steel frame structure on the top of the building.

How to install a mobile phone signal shielding device ingeniously and covertly in a high-end decorated conference room?

Once the decoration is over, it is not difficult to choose a cell phone signal shielding device, but how to install it becomes a difficult problem. The first problem to be considered is that the installation of the mobile phone signal shielding device will affect the overall appearance of the conference room.

Solutions for Campus Cell Phone Signal Jammers

The school generally recommends that the mobile phone signal shielding system installed in the dormitory area only be turned on within two hours after the lights are turned off. The purpose is to enable our students to learn to live and develop good and healthy living habits! Go to bed early and get up early, so that you will not be drowsy the next day due to lack of sleep, unable to concentrate on study and lectures.

How to find jammers to prevent cheating on written exams

We provide a safe environment. The main telecom networks in most countries are 3G and 4G. Cut down a large speaker on a nearby train. Interfering with 2G 3G Cellular Signals. Important WLAN radio shielding is multifaceted. You can disconnect the mobile phone from its mobile base station. This is a nuisance to other users who are often disturbed by chatting on the phone.

US sells advanced GPS jammers

China and Russia sell GPS jammers. Some of the latest Russian GPS jammers have recently been deployed in eastern Ukraine. In 2007, China introduced a powerful GPS jamming system for trucks.

Cell phone jammers protect against police theft of personal data

Good morning all! I heard that the American Civil Liberties Union received a certificate that provided the police with instructions on how to track cell phone jammers and use it to spy on us. Is it true?

GPS jammers can prevent location sharing

So the answer to your question is of course yes. But in this case, you are not helpless. The phone jammer can prevent the Bluetooth SIG GNSS profile from being released by the GPS, thus preventing your Bluetooth device from being recognized and shared with other devices in the room.

We Could Turn on a Cell Phone Jammer Get Rid of the Noise

Do you like football? Do you like to watch a football game? Do you like watching FIFA? Then you will need a cell phone jammer. Will you be annoyed if there is a wonderful shooting when suddenly a cell phone rings loudly near your home?

Powerful cell phone jammers Protect Our Privacy

There are all kinds of cell phone spy devices around us in our life, more and more of them are used to watching us, so we need a wireless cell phone jammer. In certain situations, this kind of electronic spy devices will put us in danger.

How to Choose GPS Jammers

Most of us will install GPS on our cars for navigation, and we find that we are in danger and the bad guys can track us Location of GPS device What should we do? Should we abandon the GPS system? The key is the GPS Jammers.

GPS Jammers Can Solve This Problem

When the GPS system is more and more popular in our daily lives, there comes GPS Jammer. GPS system devices bring us practical lives, it helps us a lot. GPS system, which has a free, open and reliable nature, has led to the development of hundreds of applications affecting all aspects of modern life.

Buy the High Power Handy Cell Phone Signal Jammer

So that you can take a good measure to avoid the inconvenience of cell phone, buy the practical high power cell phone signal jammer and install in the place where phone calls are not popular, then you will find the advantages of the jamming life.

Mini Wireless Cell Phone Signal Jammer

Wireless signal jammer is a device used to block the signal transmission of those devices working through signal reception. It appears for us to get rid of unexpected disturbances and live a safer life. Here is a brief introduction about our wireless signal jamming products.

Different countries choose Cell Phone Jammers frequency is not the same

When you buy a Jammer, you should select the signal jamming device according to your country, because the signal frequency of each country is different, so the jammer you choose is not the same.

With the surge in data breaches, how do companies leak data?

While the cybersecurity community has raised concerns about insider threats, 89 percent of breaches are caused by external attacks. But the report noted that a growing number of breaches stemmed from insiders failing to properly handle sensitive data or security information, with 149 misconfigured databases and services leading to the breach of more than 3.2 billion records.

What kind of cell phone jammers are suitable for home and office?

Mobile and wireless Wi-Fi network jammers are designed to keep you safe, protect your private property space from unwanted phone conversations, eavesdropping on communication channels and information leakage on mobile internet channels, wireless Wi-Fi and Bluetooth networks with the help of Wireless cameras and exploits.

How to prevent being a victim of eavesdropping?

When people are talking, the glass in the room will vibrate accordingly. Although we can't feel it, a laser is used to hit the talker's window, and the sound fluctuations generated by the conversation will resonate with the glass. The vibration of the light spot can be seen through a high-power telescope or lens, captured, and the sound can be restored through the frequency of the vibration and the algorithm.

What are the advantages and application prospects of the portable signal jammer?

Now the answer is of course only attainable with goals like a hidden mini bluetooth jammer, just here Can provide you with an unmissable opportunity to obtain a high-quality portable signal jammer.

On the benefits of WiFi signal jammers

Especially in the home network, children are addicted to the network mainly because of the wifi network. Therefore, many families gradually began to install mobile wifi signal jammers to block the network to control their children's Internet time.

Car Jammers Affect The Order Of Radio Waves

Radio equipment manufacture must be approved by the national radio administration department and signal frequency bands must be allocated. Buy car jammers Unauthorized, illegal products. Jammers To help those caught in this situation they can use a remote control signal blocker to block the remote control, and then live daily life as before.

Find Wifi Jammer Prevents Personal Information Loss

I hope everyone knows if wifi jammer can be traced. Jammers The electromagnetic wave shielding of the smartphone can determine the interference distance according to the actual situation, and the connection with the mobile phone is often lost.

How to compare masker device parameter functions?

If you buy a mobile phone signal blocker device, you can compare the parameters and functions of the debugging data to see if it can block the CDMA/GSM/DCS/PHS/3G/4G mobile phone signal shielding of the three networks of China Mobile Unicom.

Misunderstandings in the use of mobile phone signal jammers in the examination room!

Although people have different opinions on whether the college entrance examination is fair, this system has been in use for many years, and it has become more and more perfect, especially when it comes to the issue of fairness that people are concerned about.

3 things that detention centers must pay attention to when launching signal jammer bidding

The requirements for key technologies must be clearly specified in the bidding documents. The detailed descriptions, pictures and other materials of the products with corresponding technical requirements must be provided in the bidding documents.

Let a professional help you choose the right cell phone signal jammer

Since the mobile phone signal jammer has been trusted by the examination room and other government agencies, do you know what the mobile phone signal jammer does? What are the best-selling mobile phone signal jammers? How to choose, I hope it can help you.

Influence of base station on the shielding effect of mobile phone signal jammer

It is a key device that has been frequently used in major examination rooms recently. I believe many people should know the real role of this device. It is a key device that has been vigorously promoted in school exams and can effectively prevent and prevent candidates from cheating. , that is today's protagonist: cell phone signal blocker.

Can a high-power mobile phone signal jammer be used to shield the entire teaching building?

Under normal circumstances, it is not recommended to use a high-power cell phone signal jammer to shield the entire teaching building. This is because it is impossible to ensure that the use of a high-power mobile phone signal blocker can completely shield the entire teaching building, even if a high-power mobile phone is used.

A conference room with an area of ​​about 350 square meters needs several mobile phone signal jammers

In order to ensure the confidentiality of the meeting content, purify the meeting order, and maintain the normal and orderly development of the meeting room process. Recently, a customer inquired about the mobile phone signal shielding device in the conference room. The length of the conference room is 14 meters and the width is 25 meters.

How to choose a mobile phone jammer for a 2000 square meter performance hall

Then there are many limitations when installing a cell phone jammer in this layout. Therefore, it is also difficult to choose what kind of mobile phone jammer. Let’s discuss what type of cell phone jammer to choose.

5G mobile phone jammers have been used on a large scale in exam rooms

The high school entrance examination is approaching, 5G test signal jammers have been actively promoted and used, and you can see test signal jammers in the test rooms of major schools. Why are more and more schools installing such equipment?

The iterative new product of the 5G mobile phone signal jammer will be released soon

The overall appearance of the equipment is exquisite, the size is small, and the sense of technology is stronger! On the basis of the same shielding performance, the volume is at least 50% smaller than the previous 5G mobile phone shield. Moreover, the switches, power cords, and network cables of this 5G shield are all connected to the wiring cassette.

5G technology conquers new heights

The U.S. Department of Defense is putting together a list of bases for testing — and eventually deploying — 5G capabilities. Research and engineering groups at the Pentagon are building use cases for the technology and determining which bases are best suited to test and ultimately use the capabilities.

The test signal jammer has been vigorously promoted and put into use

This test signal jammer can effectively shield the communication signals of 4G mobile phones, and can also provide effective shielding for 2.4G WIFI signals, so that people who are using mobile phones or some electronic products cannot receive and send within the shielding range.

868 Mhz Jammers Find Secret Use To Reduce Losses

Jammer For performance reasons, the antenna is specially designed to support the host. The factory is responsible for troubleshooting such as B. Cell phone jammers. For best results, please try not to use each other.

24ghz remote control jammer what to watch out for

Today our factory produces 2 4Ghz remote control jammers for military and prison use, equipped with ultra wideband frequency bands: CDMA GSM DCS PCS 4G GPS WiFi VHF UHF. All frequency bands can be continuous and stuck at the same time.

Emp slot machine jammers cannot block the network

Can mobile jammers block 4G networks? We all know that even if we buy a high-end Emp slot machine jammer, it may not be able to shield the network due to distance issues. In general, the shielding range of a normal cell phone jammer is about 40 meters.

9 major problems with cell phone jammers

It is not good for environmental protection and energy saving, environmental protection, and maintenance of machinery and equipment, and reduces the service life of machinery and equipment applications (such as industrial areas, canteens, warehouses, etc.

Is the smaller the GPS locator the better?

The smallest GPS locators are not even the size of a fingernail. It doesn't even have a shell, just a chip, which is directly implanted into the car circuit. Is such a small GPS tracker any good? Bo Shijie will answer for you.

Handheld WiFi Wireless Network Jammer

Effectively prevent 2.4G+5.1G, protect your privacy and information confidentiality. Small size, high power, light weight, large coverage, easy to carry. Green and environmentally friendly, the electromagnetic field strength is far lower than the national standard, and has no impact on the human body.

Mobile phone shielding device is a modern high-tech application

The mobile phone shielding device is a new environmentally friendly information security and confidentiality product newly developed by applying modern high-tech. The working principle of this product is roughly the same as that of the communication signal source.

USB interface (anti-GPS+Beidou) shielding device

The basic principle of the GPS signal jammer is to cut off the GPS frequency band signal, so that the car is in a signal blocking state. This product is critical for some customers. For example, a car mortgage company temporarily gains control of the car after releasing the money to the original owner.

For what purpose do people start using cell phone jammers

Exactly what the purpose of people started using cell phone jammer, different people can give you different answers. Have for protection purposes, some for academic purposes, and will use this kind of equipment to improve work efficiency. Although for different purposes, but the demand for this type of equipment is growing.

What are the requirements for confidential meeting management?

Meeting participants and staff must strictly abide by the confidentiality discipline of the meeting, not to disclose the content of the meeting or unannounced matters, nor to casually discuss the secret matters of the meeting and read the documents and records of the participants during their work.

How can the cell phone signal jammer used in the examination room increase other signal frequency bands?

The current mobile phone signal jammer has basically achieved modularization, that is, different frequency bands, using different modules, through the rapid replacement of modules, can achieve rapid repair or rapid increase in frequency bands and other advantages.

What should I do if the GPS is blocked?

In theory, it is actually possible to subtly crack the jammer by increasing the signal power of the device or bypassing the band of the interference frequency. However, this method is very difficult to implement, and it may also be blocked by the other party's high-energy jammer. kill!

How to detect and disable these electronic eavesdropping devices?

This wireless microphone is a very handy device to hide from eavesdroppers. They include a microphone, power supply and radio transmitter. These small devices can be powered by batteries, but in this case, they work for short periods of time. Premium versions are powered by mains.

What are the information leakage prevention skills?

With the development of technology, smart electronic products are becoming more and more common, but these high-tech electronic products are what leak information, so how can we prevent information leakage? What are the information leakage prevention skills?

What are the benefits of using a conference room cell phone jammer during a meeting?

What are the benefits of using a mobile phone signal jammer in a conference room? Why use a mobile phone jammer in a meeting? A mobile phone is used to transmit voice and data information in an open electronic communication system.

The conference room cell phone signal jammer is not effective?

When the installation position is less than 200 meters away from the base station, the shielding effect is inversely proportional to the distance from the base station. That is, the closer the base station, the smaller the shielding radius.

Can 1 mobile phone signal blocker in the examination room block 1 classroom?

First of all, we need to know: the mobile phone signal jammer in the examination room has a theoretical shielding range, which is about a radius of 0-20 meters. But please note that this is a theoretical distance. The actual effect depends on the local signal strength, especially whether there is a signal base station nearby.

How far does a shortwave radio station transmit?

How far does a shortwave radio station transmit? The general range is tens to hundreds of kilometers. Shortwave radio is a radio communication device with a working wavelength of 100 to 10 meters (frequency of 3 to 30 MHz). Usually consists of transmitter, receiver, antenna, power supply and terminal equipment.

4 advantages of mobile phone wireless signal jammer

When we use a wireless signal jammer, you will find that no matter where we are, as long as we can turn on such a jammer, then everyone has no way to search for our wireless signal, in other words, home The effect of the product is more obvious than that of the common public product. In such an environment, we can always block all the signals easily, but if we use a public blocker, the shielding effect may be unstable.

How to improve the shielding technology of mobile phone signal jammer

As we all know, the function of mobile phone signal is very powerful, and there are relatively many fields of application. Under such an objective background, how to use the performance of the mobile phone signal jammer to avoid the occurrence of signal conflicts has become a comparison among the public.

How to Detect the Control Effect of Wireless Signal Jammers in the Examination Room

Speaking of which, the reason why the wireless signal blocker is installed in the examination room is actually to block the signal of the mobile phone. Therefore, at this time, we only need to use the mobile phone for detection and there is no problem.

How to measure the antenna pattern of shortwave radio?

According to the GPS coordinates of the antenna ground projection center, the OS-2 system software is automatically deployed in the main direction of the antenna 150 meters away from the projection center.

What are the common problems of outdoor mobile phone signal jammers?

The effective coverage of the jammer is a circular area centered on the jammer, so pay attention to the correct placement of the cell phone signal jammer when using it so as to avoid blind spots; if it is a directional antenna, it can be adjusted according to the standard sector angle of the antenna Aim in the target direction.

Inventory of 9 mobile phone signal jammer application problems

After there are too many mobile phone signal jammers, it is difficult to turn on and off in a centralized and unified manner; even if the power cord is arranged uniformly, a special person is required to be responsible for turning on and off on time.

Reasonable use of cell phone signal jammers can prevent fraud

There is no doubt that the leading role of candidates in the college entrance examination, they choose a fair and just solution to the college entrance examination. Although it is said that university is the common wish of every examinee, it must itself get real power.

What are the risks to us from eavesdropping and candid photography?

In the real life of anti-eavesdropping devices, some people use professional equipment such as monitors or recorders to record or record and listen to sounds from a distance in order to achieve specific goals. In order to prevent the leakage of work information, you should protect yourself with an anti-eavesdropping device called an anti-theft device.

What is the best anti-eavesdropping device for confidential meetings?

The third step, of course, is to prevent eavesdropping during the meeting. The FBV-211 recording blocker can effectively interfere with various eavesdropping and recording equipment. Even the eavesdropper is standing next to the user. the main function is to prevent other methods of eavesdropping on the recording.

What are the benefits of a portable cell phone jammer?

You can check out this WiFi Jammer for Handheld Cell Phone, its full name is "Handheld Cell Phone and WiFi Jammer", it is a multifunctional cell phone and WiFi jammer depending on the The signal strength in a given area simultaneously blocks WiFi, CDMA, GSM, DCS/PCS and 3G signals up to 15 meters in size.

Do you know the formation principle and solution of shortwave dead zone?

The ground conductivity in inland areas is low, and the absorption of radio waves is strong. farther). For sky wave propagation, because the antenna has a radiation angle (the angle between the central axis of the main lobe and the ground), it must be separated by a certain distance when it is reflected back to the ground through the ionosphere.

Do signal jammers consume a lot of mobile phone batteries?

Cell phone jammers consume a lot of battery on most cell phones. Because after the mobile phone signal blocker is opened, the signal between the mobile phone and the base station will be blocked.

Is there a contradictory relationship between the mobile phone jammer and the signal?

The shielding device and the signal are the relationship between the spear and the shield. The shielding effect of the strong signal is poor, and the shielding effect of the weak signal is better. Therefore, the use environment of the jammer is that there is no communication base station within 200 meters.

How to judge the shielding range of indoor mobile phone signal jammer?

The signal jammer scans the low-end frequency of the channel to the high-end at a certain speed during the operation. This scanning speed can cause garbled interference in the received message signal of the mobile phone, so that the mobile phone cannot detect the normal microwave signal data announced from the base station.

Do you know what are the common characteristics of cell phone signal blockers?

With the advancement of science and technology, some security precautions have been applied more and more widely. The more common one is the mobile phone signal blocker used in the conference room. Do you know what are the main advantages of this kind of blocker?

Why do I need to install a mobile phone signal screener?

Every day we use mobile phones to find signals, why do we need cell phone signal jammer? In fact, there are two aspects of this fact. For those who can use mobile phones, of course, it is hoped that the stronger the mobile phone signal, the better.

Analysis of common signal interference problems of mobile phone signal jammers

Proponents of the technology argue that jamming devices are necessary when people fail to observe proper, widely accepted cell phone etiquette. Think about it, school, theater, transportation, or any other quiet train, almost any conversation, texting, streaming, etc. can be considered destructive, even dangerous.

How to configure a mobile phone signal jammer for a display area of ​​1000 square meters and 400 square meters

The interference range of a low-power mobile phone signal jammer is about 100-150 square meters, that is, the interference radius is about 5-8 meters. This interference radius basically conforms to most of the application scenarios of a low-power mobile phone signal jammer.

Disadvantages of Detecting Frequency Sweep Electronic Jammer First Sweep Frequency and Then Interference

For the actual combat scene of bomb disposal and EOD, the electronic shielding device using the detection frequency sweep method first scans the suspicious frequency points and then starts the interference signal to suppress. There is a time difference. Once the suppression of the remote control signal is not immediate, the consequences are extremely serious.

Does the fleet escort only need the mobile phone blocker to block the mobile phone signal?

In a project where a customer consults a fleet escort, from the perspective of saving project investment costs, is it only necessary to configure a cell phone shielding device for shielding mobile phone signals?

Do you want to consider lightning protection for the newly installed 5G shield?

When the 5G isolator is installed indoors, it is basically unnecessary to consider the lightning protection measures of the 5G signal isolator. It is only necessary to ensure that the power supply circuit of the 5G isolator is connected normally.

Learn about the applications and benefits of cell phone jammers

There are good and bad sides to every technology, and what matters is how we use it. Like cell phone jammers, in most cases it's used in the right place. But there's no denying that some people use it for bad things. Of course, today, the application and advantages of mobile phone signal jammers are analyzed in detail.

Mobile phone signal blocking bags have entered more places

We are familiar with the function of this mobile phone signal shielding bag, and we all know that it has a very good function of confidentiality and protection for its use, so it is now very important in many places. Let's take a brief look at the different places it has been used in.

Let's learn about the simple installation of shields commonly used in prisons

When there are too many mobile phone signal jammers, especially after multiple buildings in the prison area are shielded, it is difficult to turn on and off in a centralized manner; even if the power cord is arranged uniformly, a special person needs to be responsible for turning on and off on time.

Mobile phone anti-eavesdropping methods and mobile phone security awareness

Nowadays, many people only use mobile phones, and they lack or know little about the destruction of mobile phone memory card information and data, hidden dangers of mobile phone information security and technical loopholes.

Does placing a high-power shielding instrument in the car have a great impact on shielding mobile phone signals?

If the antenna of the high-power shielding device is set up in the car, the metal car material will reflect and refract the signal repeatedly in the car, which will greatly reduce the effect and scope of shielding the mobile phone signal to the outside world.