Category: Tag Meeting

Mobile phones are popular and essential. The use of smartphones should be as smooth as possible everywhere-because users demand. So why would anyone be interested in disturbing mobile phones? In some rooms and in certain events, using mobile phones is quite annoying. For example, using a mobile phone during a meeting in a conference room can be annoying. Therefore, some business leaders turn on the cell phone jammers during the meeting to prevent inappropriate ringtones from affecting the meeting.

What are the basic advantages of drone jammers

After the development of UAV monitoring equipment, its application has become more and more extensive, especially in many high-tech fields, and its role is still very good. Therefore, the design effect and function of the UAV jammer will be even more different. So what are its basic advantages?

drone jammer gun high power

The use of radio and photoelectric technology makes the system technology of the drone jammer interfere with the signal during the use process is relatively advanced, especially in the recognition and judgment are very accurate, after the signal is identified, the interference will be carried out immediately , It will not affect its operation. Therefore, it is getting higher and higher in its technical level, which has been recognized and trusted by customers. From a design point of view, you all think that the functional characteristics of drones will be more diversified. In the analysis, you all feel that the functional advantages of jammers are diversified, and the role played out is quite good.

After comprehensively analyzing and summarizing the diversified UAV jammer design, it will always reach the level of system technology, and it has been recognized and trusted by customers during the application process. Therefore, the principle of action in the interference process is still more and more advanced. From the perspective of promotion, they all feel that its performance advantages are diversified, and the choices it brings are worthy of recognition. Sales advantages have been trusted and recognized by customers. After mastering the basic points of its jammer, it can be seen from the design that its performance will be more prominent, and the choices brought are diversified.

Multifunctional signal jammer, suitable for different interference purposes

GPS jammer not only provide communication protection. These GPS jammers can point out small problems in the network signal. The GPS jammer keeps the frequency free from any interference. Entrepreneurs and employees are also protected by any intrusive measures used by database crooks. Multifunctional shields set the tone, making all forms of information indispensable, whether it’s personal or business information.

In addition to GPS jammers, there are several other types of jammers, among which the best jammers are very useful for individuals and organizations.

The mini jammer is an excellent mobile phone jammer that can effectively block the signal while on the move. This portable jammer is not expensive. The portable jammer is very important. The jammer will not affect the work of any other electrical or electronic products around it. This feature of the portable jammer makes it easy to use without any restrictions. In addition, the portable shield is easy to carry and easy to carry. Therefore, it is an ideal choice for individuals. Portable jammers are available in different models and sizes.

portable mobile phone jammer

In addition, there is a 4G jammer, which can block all mobile phone signals from anywhere in the world. The 4G jammer is a very efficient and complex device. It is a powerful device that can block signals up to 20 meters long. The 4G jammer can be operated with batteries and adapters. Therefore, 4G jammers can be used indoors and outdoors. In other words, the advantage of this shield is that the installation location can be selected. 4G jammer is a more convenient shielding device.

The shielding distance of the device has a great relationship with the power of the device and the use environment, and several aspects that are helpful to the shielding effect: one is the output power of the device, the other is the working method of the shield, and the third is the use environment (indoor or outdoor). The fourth is to shield the interference intensity of the surrounding environment.

Mobile phone signal jammer

Nowadays, mobile phones are all digital signals, and the anti-interference ability of digital signals is very strong. Generally, the effect of using analog signal technology to interfere with digital signals is poor. Therefore, digital signals must be used to interfere with digital signals. The interference effect is quite different. The jammer using digital jamming signal technology has lower power and higher efficiency than the jammer using analog signal jamming technology.

The synthesis, attenuation, and reflection analysis of indoor mobile phone signals and interference signals is very complicated. Before shielding, the strength and quality of local cell phone signals have a great impact on shielding. Different mobile phones have different effects. Generally, mobile phones with strong ability to receive weak signals may not have good anti-interference effects.

The direction of the base station and the direction of the shielded area of the mobile phone also affect the shielding effect. Generally, the spatial signal strength is about -60 to -70dbm, and the base station can reach about -40dbm within a few hundred meters, and the mobile phone reception strength range is generally between -35 to -95dbm. The higher the signal power of the space mobile phone, the shorter the shielding distance.

The above conclusions are based on the law of radio signal transmission in free space. In reality, there are many obstacles on the ground that affect the transmission of radio waves. The above can only be qualitatively used as a reference, especially indoors. The above law is very different from the actual situation. Therefore, this problem is difficult to calculate accurately at the time, and can only be determined based on the actual situation on site. Precise construction projects must carry out preliminary research and signal testing, and then design specific solutions. In the later period, timely follow-up tests are required, and certain corresponding supplements can be foolproof, that is, to achieve the effect of strict shielding.

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

The rapid development of mobile communication has brought great convenience to people’s work and life, but the side effects caused by mobile phones have become increasingly apparent. The unsafe factors of mobile phones are mainly reflected in the fact that in important secret-related places such as agencies, factories, enterprises and institutions, intentionally or unintentionally dialing a mobile phone or forgetting to turn it off may cause a leak at any time. In some important secret-related occasions or meetings, the use of mobile phones is prohibited. At this time, we will use the cell phone jammer, which is a green new information security product that is newly developed using modern high-tech. The principle is similar to that of the communication signal source. A fan-shaped shielded space is customized according to the power of the jammer, and the normal wireless connection between the signal source and the mobile phone is cut off, so that the mobile phone in this space cannot be received or called. To achieve the purpose of compulsory banning of mobile phones, so as to ensure the safety and confidentiality of the scene. The appearance of the equipment is simple and elegant, solemn and beautiful; efficient and intelligent cooling and heat dissipation system, stable performance, safe and reliable; built-in professional directional antenna, without external antenna, can be directly powered on by the mains; good electromagnetic compatibility, integrated design and installation of the whole machine Convenient and simple to use and manage.

arm gsm 3g gps phone jammer

Jammer-mart mobile phone signal jammer detailed parameters: simple and elegant appearance, solemn and beautiful. Frequency band: CDMA/GSM/DCS/PHS/3G/4G/2.4G (WLAN/WIFI/Bluetooth)
Antenna form: Ten independent systems with built-in professional directional antenna
Effective shielding range: 5-40 meters@-75dBm (directional)
Start mode: manual switch
Continuous working time: ≥24 hours, high stability
Applicable places: suitable for secret-related medium and large conference rooms, auditoriums, conference venues, hotels and other places
Product size: 315*275*135mm (length * width * height)
Weight: about 5Kg

How to use: 1. Open the package and check whether the parts are in good condition; 2. Connect the power adapter and power cord to the port on the right side of the fuselage; 3. Insert the plug into the 220V mains socket; 4. Place the shield on On a plane above the ground 180cm (or hanging on a vertical wall), make sure that the front panel is tilted forward 3~5 degrees; 5. Press the switch on the right side of the fuselage, and the jammer can start to work automatically.

Key technical solutions and implementation methods of important functions:

(1) Broadband and high power output: solve the problem of wideband power gain increase, and power stability control after gain increase, waveform in-band smoothness and out-of-band suppression, control of out-of-band spurious indicators, and broadband output standing wave ratio Indicators (some indicators are repeatedly adjusted before the R&D plan is finalized, and omitted during normal production and after product quality is stable).

(2) Shielding between multiple systems: In the small space of the shielding instrument machine, there are 6 systems of CDMA, GSM, DCS/PHS, 3G1.3G, and 4G1.4G to transmit high-power, wide-band signals at the same time , Solve the intermodulation index generated between these multiple signals (repeatedly adjusted during research and development, omitted during production). B. Slow start circuit technology: The use of slow start circuit can avoid the sparking phenomenon caused by mechanical switches, and the integration is high and stable. C. Long-term uninterrupted work: The equipment adopts high-quality components, metal casing, and good heat dissipation performance. It can work uninterrupted for 7×24 hours. Long-term work will not cause damage to the performance of the equipment.

Mobile phone signal jammer installation and technical advantages of conference room signal jammer

Many companies will install signal jammer in conference rooms. The main reason is that they don’t want to let the phone call in to disturb the progress of the meeting. What are the technical advantages of signal jammers in conference rooms? What are the installation methods of signal jammers? Below jammer-mart Let me introduce you.

newest hidden mini cell phone jammer

Advantages of existing technology of mobile phone signal jammer:

(1) The new cell phone jammer can already achieve the IMSI number obtained in the 4G mode, which does not disturb the people, does not interfere, and is green;

(2) Which floor in that area has a mobile phone violation alarm, that is, the shielding device in the area is activated, not all devices in the entire unit’s supervision area are activated together, not for a long period of time, so the shielding effect is very small, the time limit is very short, green Environmental protection;

(3) Leading technology, mature and reliable, in line with the technical prevention requirements of national signal control;

(4) It can effectively block the 2G+3G+4G mobile phone standards that all mobile\linkage operators have opened and run today. The IMSI number obtained in the 4G mode in the coverage area can be used for all telecom mobile phones. The system collects and is handed over to the telecom operator for whitelist control.

Installation method of mobile phone signal jammer

1. When using an external mobile phone signal jammer with an antenna, lock the letter on the antenna corresponding to the letter on the host, and then turn on the power.

2. The mobile phone signal jammer with built-in antenna is easier to use. Just plug in the power and turn on the switch.

Explain the function of GPS jammer

When purchasing and using vehicle mortgages, it is best to configure GPS jammer within a certain stage. Especially some car dealers who hand over the car and purchase the mortgaged car, in other words, once they receive the car, they can turn on the GPS jammer and put one in the car, and one in the car trunk! When the shield is turned on, you can be assured of peace of mind when you take the car back and forth. However, the jammer cannot be activated 24 hours a day, so after the safety reaches its own chassis, you must find a technical professional to investigate the GPS by yourself, and modify the GPS positioning equipment and mortise locks, key changes and other security guards to prevent mistakes. just in case.

gps signal blockers

1. Understand the GPS jammer
GPS jammers (jammers) can reasonably prevent being tracked by GPS communication satellites, reasonably affect GPS communication satellite signals, and maintain your track privacy protection and information business secrets.

2. The function of GPS jammer
The GPS signal is the same as the signal on the mobile phone, it is very susceptible to the influence of electronic components. The signal jammer can shield all the signals in a certain range, so that all communication devices in the range lose the signal. The installation of a GPS locator on the car enables buyers to easily find their own car on the GPS monitoring management platform. As everyone knows, such a good product is also found by criminals to find loopholes. If you buy a signal blocker on Taobao, Turn on when the car is stolen, there will be no signal in the car, and the car will go offline on the service platform, as if the whereabouts of the car are unknown, you can’t find it anyway.

3. Disadvantages of GPS locator
I have to admit that the GPS jammer also has disadvantages for the user. The signal jammer is only temporarily turned on, and it is unlikely to be turned on all the time. If he turns off the jammer, the GPS locator will have a signal again. Drivers can quickly find the stolen car based on precise positioning information.

In addition to signal jammer, some people will say that they will use signal detectors to find out and destroy GPS locators. Yes, this is also an objective fact, but this is only valid for some GPS devices. If the GPS tracker is in a dormant state most of the time, the signal detector will not be able to detect it! what happened?

For example, some ultra-long standby GPS locators can only be awakened once a day. After being awakened, the precise positioning information of the vehicle is sent back to the buyer’s network platform and then it enters the dormant state. In the dormant state, it is Without a signal, it is absolutely impossible for car thieves to detect it! In addition, it is also free of wireless network installation. There is no wiring on the surface of the machine and equipment. It can be placed anywhere on the car (if it does not have to be placed in an area blocked by the signal). It is very concealed for engineering safety.

Prevent children from indulging in mobile phones-how to choose home mobile phone signal jammer

With the advent of summer vacation, primary and secondary schools all over the country began to have holidays, but the tests for parents have come one after another-what should I do if children are addicted to cell phone chat, what should they do if they don’t have a good rest and play mobile games in the middle of the night, children hold their phones all day and are indifferent to other things How to do? These are the questions I have received the most recently.

When encountering such consultations, I generally recommend parents to communicate with their children so that they can learn to self-discipline. However, some parents also reflect the actual difficulties and hope to purchase home cell phone signal jammer to interfere with/cut off cell phone signals. Yesterday, an older brother hoped that his younger sister could concentrate on studying. He sacrificed the fun of playing with mobile phones and bought a cell phone signal jammer. My heart is still very warm!

handheld signal blocker

Then let’s talk about how to choose a mobile phone signal jammer at home (to prevent students from indulging in mobile phones)?

Shielding range: The shielding range is proportional to the power. For low-power signal jammers, one is enough to install in a room, and the shielding area is about 20 square meters; while for high-power jammers, the shielding distance can reach 100-400 square meters. The local field strength is different or whether you need to go through the wall to decide (some parents will choose to install the mobile phone signal jammer in their own room).

Signal strength: The distance between the surroundings and the signal base station and now many cell buildings have signal base stations or signal amplifiers. According to the shielded frequency band: Before purchasing, you need to know which signals you want to shield. The ordinary mobile phone signal (2345G) can be selectively shielded. If you only shield 2G or only 345G, this can be adjusted before leaving the factory. There are 2.4GWIFI, 5.8GWIFI, VHF, UHF and other frequency bands. Here we need to explain the function of each signal frequency band. Simply put, 2G is the frequency band for making phone calls, and 2345G is the frequency band for mobile phones to access the Internet, so it depends on the specific shielding frequency band requirements.

Appearance: The appearance of the mobile phone signal jammer can be divided into an external antenna and an internal antenna. In general, the external antenna is externally installed and stretches out, so it takes up more space than the internal antenna. The volume is larger; because of the antenna extending outward, the effect of the external antenna is more stable.

Power supply: Generally, the power supply of the jamming device is the built-in lithium battery. After the power is used up, the power adapter can be used for charging; the desktop examination room uses 220V voltage power supply, and the car-mounted vehicle generally uses 12-36V voltage power supply.

UAV countermeasure market analysis

During this period of time, everyone knows that drone black-flying incidents happen frequently, small enough to be used for peeping, large enough to steal state secrets and military secrets, small enough to fall and injure a person, large enough to cause the airport to close. The delay of the aircraft and the stranded passengers have caused serious consequences. Therefore, the national laws have also been continuously improved during this period. Legal documents have been issued one by one to strengthen the control and real-name registration of drones. Here we do not make any comment on politics, only UAV defense and UAV countermeasures technical means are analyzed.

There are several ways to control drones:

1. This method of shooting with a gun seems to be more enjoyable. It not only manages but also destroys it. The damage index is higher than five stars. But there is a problem that is more headache. It requires the shooter to be accurate, not the one who has participated in the Olympics and won the championship. Forget it, so as not to be embarrassed. In addition, you need to find the right time. Once you fall, it is absolutely not allowed to hurt people. It is important to get off the phone. In addition, you must remember where you are calling. If you fall, you need to find it. This is a headache. The question, how many people do you need? Who flew the last question is unknown!

2. Catching with a net is similar to shooting a gun, except that the gun shoots out points, here is the net; it seems that this technology has improved, the destructive power is reduced, and the accuracy rate is improved, but the prerequisite for the problem is The drone needs to fly low, and the human station is high, so the practicability is low;

3. Drone jammer is also the mainstream technology at present. The remote control signal of UAV is blocked by high-power transmission, so that the UAV loses control. Generally, UAVs can be shot down directly, and smart UAVs can also be unmanned. Aircraft interference interferes with GPS and Beidou signals to prevent drones from returning home;

There are two types of UAV interference:

1) Hand-held UAV jammers require humans to conduct investigations, and it is found that manual intervention by the handheld UAV jammers can achieve the control effect; the control distance can generally reach about 2 kilometers;

2), base station type UAV jammer The base station type UAV jammer is mainly aimed at the relatively large control area, prevents the drone from entering the control area, and greatly reduces the safety risk; it can be completed without a large number of personnel operation; control Distance: 6-8 kilometers can be;

In addition, I did a lot of searches on the Internet. The Chinese characteristics are vividly reflected. As long as there is a need for thousands of troops to invest in this market, the market capacity and market opportunities are as big as everyone’s guess;

One set to two sets per unit, let’s calculate that the quantity is really limited and belongs to a niche market; in addition, the technical content is not particularly high, the threshold is low, the more participating businesses, the smaller the market profit margin, so it is recommended that those already on the road should be prepared Don’t be hot on the road for a while, look at the market sensibly.

Can a mobile phone signal jammer shield 4G signals?

Today, I will talk to you about whether the mobile phone signal jammer can effectively shield the 4G network signal? This topic will help everyone have a more comprehensive understanding of the signal jammer. Next, the editor summarized a few pieces of knowledge about mobile phone signal jammers.

1. In addition to the 4G network signals that have been widely used, the commonly used mobile communication network signals include the 3G network signals that were popular in the past few years, as well as the 2G network signals used by some elderly phones. Although 5G network signals have become a topic of discussion by many people, it will take some time before they can reach 5G networks.

2. The first thing to be clear is that the mobile phone signal jammer can shield 4G network signals. When the mobile phone is operating in a certain frequency range, the mobile phone and the base station are connected by radio waves, and the transmission of data and sound is completed with a certain baud rate and modulation method. Aiming at this communication principle, the mobile phone signal jammer scans from the low-end frequency of the forward channel to the high-end at a certain speed during operation. This scanning speed can cause garbled interference in the message signal received by the mobile phone, and the mobile phone cannot detect the normal data announced from the base station, so that the mobile phone cannot establish a connection with the base station. The mobile phone is manifested in the phenomenon of searching the network, no signal, no service system, etc.

3. The key to shielding 4G network signals depends on the frequency supported by the selected mobile phone signal jammer. The current 4G frequency range is very wide, from 800M-2. 4G, if you want to shield 4G signals, it depends on what you use for shielding. How much bandwidth can the device support? Because some of the 4G frequency band almost overlaps with WIFI 2.4. Once you shield the 4G signal, the WIFI and Bluetooth in the shielded area may not work properly. Therefore, whether the 4G signal can be shielded depends on the function of the shielding product, whether the device has a 4G signal shielding module.

Should coffee shop install mobile cell phone signal jammers?

The coffee shop is usually the best place to choose a business, but there is always such a noise, it affects my behavior such as our conversation, should we install a signal jammer to stop the use of the phone?

Norliy: There have been two controversies about the use of cell phone jammer. One is that mobile phone signal jammers must be used in places where mobile phones are prohibited. Another is that cell phone blockers should not be widely used. So where should you use a cellphone jammer? The question is also controversial. Can the cafe be used? For many, the cafe is recreational place, should keep the environment quiet, prohibit the use of mobile phones is also for this purpose, cell phone signal jammer should be used in these areas.

Marly: As a cyberwork, I think, should not be installed mobile phone jammers itself, let’s go to the coffee shop to drink coffee is to leisure, do the thing that oneself like, and wifi network is what we have to use to the network environment, if you use the cell phone jammer, that go to the coffee shop and what fun? You might as well make your own coffee at home.I think this signal shielding device should be installed, where is the have installed, which can provide a good environment for people to rest and work, is more than a coffee shop, theater concert hall has install signal jammers.

Qengeoa: Should the coffee shop install a phone jammer? A coffee shop is a place for people to serve. It should be based on people’s interests and why people want to go to a coffee shop. With the development of smart phone, coffee shop has become the people leisure to relax a place, also is a great place for some business communication, a lot of people choose to talk about business in a place like this, date, etc. But as the wifi network coverage, many people in the shop use wifi to see video, play games, which greatly affect the business communication, to this end, a coffee shop considering the factors of the customers, in order to provide a better environment for their communication, installation of cell phone jammer premise is to protect the good environment, I think should be installed, but you have to control the interference range. It’s best to have adjustable desktop phone jammers.

Barcler: Must use the mobile phone signal jammer, along with the development of smart phones, although it provides us with convenience and enrich our life, but our life also disrupted by mobile phone, people addicted to the mobile phone, don’t want to communicate with people, because cell phones affect children learning problems such as outstanding, it has become a poison the important equipment of modern youth.

Don’t stay up all night

Now many young people have stayed up all night. Why? Because now there is a lot of entertainment. Mobile phones and wireless networks are particularly widespread. As long as there is a cell phone and WiFi network, many people can kill time very easily, including online chat, playing mobile games and so on.

In order to keep teenagers, so as not to stay late and protect their health, parents need to control their use of WiFi network and cell phone. How do you do that? Young people are very rebellious, it is difficult for them to listen to other opinions sometimes, especially for the children who are addicted to mobile games, it is difficult for them to leave the phone.

Once you play the phone, you will easily forget the time. So the phone is the main reason for their lack of sleep time. Lack of sleep will hurt your health and also have a bad impact on your learning and work. To live healthy, we need enough sleep. So we should get rid of the addiction of the cell phone. To do this, you can use the cell phone jammer at the right time to block the phone signal so that the phone cannot access the Internet.

Of course, we should pay attention to the WiFi network. Because of WiFi networks, even if there is no cell phone signal, you can also play the phone at midnight. The phone’s small screen is easy to hurt her eyes. So we need wifi jammer. To fufill both, you can choose a phone and WiFi jammer to interfere with cell phone signals and WiFi networks at the same time.

In a word, to let teenagers and get enough sleep and maintain a healthy lifestyle, sometimes we have to use jammer at the right time.