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Talk about the 4 advantages of wireless signal jammer

In the last few years, various types of cell phone jammer have emerged in an endless stream. We are dazzled and dizzy. In fact, not all products are suitable for us to apply to ourselves. Some products are public, so they are not suitable. There is a very special jammer used in other fields by us, and it also appears in front of us. Its name is wireless signal jammer. So what are the advantages of this type of product?

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, no one can search for our wireless signal. In other words, home The effect of the product is more obvious than that of common public products. In such an environment, we can always shield all signals easily, but if we use a public shield, then the shielding effect may be unstable The problem, so we need to understand the specific use effect.

Bluetooth jammer blocker

What are the advantages of wireless signal jammers? The following editor from Chengdu Saiyue will explain the 4 advantages of Saiyue wireless signal jammer one by one.

1. Wide application
Wireless signal jammer is mainly used in examination rooms, but not limited to examination rooms. They can also be used in prisons, gas stations, mobile phone bomb prevention, oil depots, liquefied gas stations, detention centers, interrogation rooms, courts, labor reform teams, conference rooms, theaters, churches, Only used in libraries, school dormitories, special security and confidential occasions (confidential offices, negotiation rooms, mobile vehicles, mobile political and business dignitaries guarding the scene).

2. Strong pertinence
Wireless signal jammers can be mainly used for domestic college entrance examinations, domestic college entrance examinations, adult college entrance examinations, self-study examinations and various colleges and universities examinations, as well as various middle schools, technical secondary schools, vocational high schools, prisons, detention centers, conference rooms, etc. Use mobile phones to cheat, send text messages, Adverse effects caused by communication with outside prisoners, collusion with others, etc.

Three, the shielded signals are diverse
Effectively shield GSM/CDMA/DCS/PHS/TD-SCDMA/WCDMA/WIFI/TD-LTE/FDD-LTE.

Fourth, model advantages
1. Using high-dispersion aluminum alloy shell, low working temperature, more stable shielding effect.
2. Built-in silent turbo fan, low working noise.
3. Separate power adapter. 12V/24V DC power supply work, convenient for vehicle mobile work.
4. The antenna is externally designed, and one end of the interface is unified to make the appearance more beautiful and decent. It also has an anti-loosening design, and the antenna and the host have a marked working frequency band to facilitate one-to-one correspondence.

A major feature of the wireless signal jammer is that it is easy to carry, because it is relatively small, so when we go out, we can also carry it around, but there are other types of products around us. There are major drawbacks. Because the public products are relatively large in size and heavy in quality, they may consume a lot of manpower, material and financial resources during the carrying process, and sometimes even extremely difficult problems occur. In comparison, the reputation of household products will naturally be more ideal and more convenient.

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.

What are the differences between ordinary mobile phone signal jammers and high-quality signal jammers?

Signal jammer, generally speaking, can be divided into ordinary shielding and high-quality shielding.

Ordinary shielding, its technical characteristics are mainly based on shielding principles, using a large number of low-power or high-power devices to fight against, staying on simple technical solutions.

gps wifi cell phone jammers

High-quality shielding, its technical characteristics adopt strong signal digital frequency hopping technology, which reduces radiation by 150 times compared with ordinary shielding technology; mainly outdoor shielding, reducing indoor radiated power by hundreds of times; multi-channel combined technology, full-frequency antenna replacement N frequency-dividing antennas are suitable for wireless remoteness, laying the foundation for distributed antennas; using distributed antenna technology, reasonable distribution of shielding power, dispersing the power signal, reducing antenna radiation, providing tens of times the efficiency, and eliminating dead spots and leaks ; Jike’s unique TD synchronization technology, for China Mobile’s 3G (TD-SCDMA) and 4G (TD-LTE) networks, only shields the downlink pilot time slot to prevent interference to the base station, obtained by the China Mobile and Radio Management Committee The recognition, while reducing radiation dozens of times.

Comparison item Normal shielding Quality shielding
Low price moderate price
Technology
Basic shielding principle
Run by quantity
1. Digital dot frequency/frequency hopping technology
2. Multiplexing technology
3. Distributed antenna technology
4. Jike TD synchronization technology
Installation location is uncertain Outdoor
Radiation big radiation small radiation
Effect
1. Cannot fully shield
2. Large interference:
To surrounding/base station
3. Unstable operation
it is good
Service life is shorter than three years

The “artificial weapon of military force” between Turkey and Russia

The “Krasukha” land-based electronic jamming system is the most advanced signal jammer equipped by the Russian armed forces. The system can effectively interfere with land-based radars, aerial radars, early warning aircraft, and even near-Earth satellites within 300 kilometers. The system is said to permanently damage the target radio equipment.

gps phone blockers

Russia has already deployed a “Klasuha” land-based electronic jamming system in Syria. Compared with Turkey’s “Koral” portable radar jamming system, “Krasuha” has a wider interference range. “Krasuha” can blind the Turkish Air Force’s “Peace Eagle” early warning aircraft, making it impossible for the Turkish side to map the airspace of Syria and the Eastern Mediterranean, and greatly reducing its interception capabilities.

The Russian “Glory”-class guided missile cruiser has advanced maritime combat platforms and air defense platforms, equipped with 16 “Bazart” anti-ship missile launch systems, 64 S-300PMU long-range air defense missile systems and two “Wasps” short-range Surface-to-air missiles. The “Glorious”-class guided missile cruiser has advanced functions such as three-dimensional search and radar tracking, and is called a “floating fortress.” After the Russian fighter plane was shot down on November 24, a “Glorious”-class guided-missile cruiser has been deployed to Latakia Port in Syria.

However, the “Glorious”-class guided-missile cruiser is not without flaws. This class of cruisers lack effective anti-submarine firepower, especially when capturing stealth underwater targets such as Turkish “Gul” class submarines. In addition, Russia has only one “Glorious”-class guided-missile cruiser that can be used in the Syrian region, and several other ships are deployed in the Baltic Sea and the Pacific Ocean.

Russian special forces have a long-standing reputation and have performed a large number of special missions since the Soviet era. They can perform various missions such as long-range raids, assassinations, sabotage, and lurking. It has multiple teams and branches, and its most recent appearance is said to be a “little green man” who suddenly appeared in the Crimea region in February 2014. Many think tanks believe that the Russian special forces are the sword that Ankara is most worried about. Ankara’s envisioned plot includes Russian special forces disguising as Syrian refugees and mixing into southern Turkey and performing special tasks.

How effective is the shielding of household signal jammers?

The mobile phone signal shielding system is a relatively professional modern communication signal shielding technology, especially in the special environment of prisons, which puts forward higher requirements on the mobile phone signal shielding technology. For example, in the application environment of the communication signal shielding system of a general meeting, participants come and walk in a hurry, and there is almost no time to “search” for the blind spots of communication signal shielding. In the special environment of the prison, the number of people is dense and the activities are more concentrated. This is the time to use mobile phone signal jammer for shielding.

1. How to evaluate the effect of the cell phone signal shielding system in the prison? If there is no shielding blind spot in the prison, the test should be repeated. In places with strong signals, such as “windows” or “every corners”, professional equipment detectors should be used. , Radiation, and shielding of other systems; to achieve no blind spots; to comply with the inspection regulations of relevant departments

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2. The shielding effect and external shielding?

The high-quality mobile phone signal shielding system project must be completely shielded without affecting the communication of residents, not letting people complain, not allowing mobile and China Unicom to cause trouble, and the shielding area is more accurate, and there is no shielding outside the shielding area, which can be regarded as a complete acceptance project.

3. Problems with upgrading and expansion? The wireless communication technology is developing rapidly. 5G is currently in the trial operation stage. Yesterday, the system could be completely shielded, and there may be problems today. Therefore, the construction of the shielding system should be modularized, and it can be easily upgraded according to the changes of the surrounding communication facilities, so as to substantially save the project investment and achieve permanent shielding.

Factor 1: the effective shielding of mobile phone signal jammer

The efficiency of the so-called cell phone jammer is whether the shielding effect has blind spots or leaks. Near some prisons, there may be sources of strong mobile phone signals. In order to achieve a good shielding effect, a lot of materials and energy will be spent correspondingly, and the cost will correspondingly increase substantially. Therefore, the better the shielding effect, the cost will increase accordingly. In actual use, the shielding requirements of the prison area are generally higher, with a little leakage and blind spots. Some personnel may seize this loophole, so that the mobile phone can be used in the originally prescribed shielding area, which cannot achieve the original intention of shielding the mobile phone.

Factor 2: No malfunction time of mobile phone signal jammer

If the original stipulation that the failure-free service life is 1 year and the failure-free service reaches 3 years in actual use, the cost performance will be tripled. If the original stipulation that the failure-free service life is 1 year, it will often fail in less than half a year in actual use. Although it is a free warranty, the risk is immeasurable, personnel resources are wasted, and the corresponding cost performance is greatly reduced.

Factor three: external shielding of mobile phone signal jammer

If external shielding is not considered, it is relatively easy to simply shield the mobile phone signal, as long as the shielding power is increased. But it is necessary to ensure that the shielding area has no blind areas and no leakage points. The power intensity in the shielding area is relatively large. If there is a little leakage, the external shielding will be large. This requires full consideration and technical control during shielding design to achieve precise and efficient shielding without external coverage.

Factor 4: Cell phone signal jammer cost

The cost should follow the shielding requirements and budget. You can’t blindly choose cheap machines, and you can’t think that expensive is good. In actual choices, word-of-mouth is very important. It is more necessary to investigate past cases on the spot, test the shielding effect, and then make selections.

Current situation and application of mobile phone signal jammer

Which one is better for the anti-cheating signal jammer for the college entrance examination? jammer-mart will answer for you. The high school entrance examination is the two exams that Chinese students will go through during the process of entering a higher education. In many cases, the high school entrance examination determines the future and fate of many people. Therefore, the high school entrance examination and the college entrance examination are widely valued by society, schools, and families. In the middle school entrance examination and the examination, the test room signal blocker must be installed in the examination room to prevent criminals from cheating. NZDC built-in antenna full-band wireless signal jammer (name signal jammer/disconnector/suppressor/cutter/isolator/conference information confidential machine) is our factory adopts foreign high-tech, mainly for domestic college entrance examination, adult college entrance examination, self-study exam and In the examination process of colleges and universities, some criminals use mobile phones to cheat, combined with the current situation of middle and high school students using mobile phones to send text messages randomly during class hours.

As well as the troubles and noises caused by mobile phones in serious places such as political organizations, large, medium and small conference rooms of enterprises, concert halls, theaters and other serious places, high-tech products carefully developed according to the actual situation of domestic mobile communication. Within a meter range (50-250 square meters), cut off GSM/DCS/CDMA/PHS/3G (TD-SCDMA/CDMA2000/WCDMA)/4G mobile phone signals, 2.4GWIFI wireless signals and walkie-talkie transmission frequency bands UHF400-470MHZ, VHF135-175MHZM, Make the mobile phone unable to make and answer, the walkie-talkie cannot work normally, but it will not interfere with the work of other electronic teaching equipment, the mobile phone and walkie-talkie can be restored to normal use after leaving the partition. Clean the school and clean the meeting. Features of this test room type mobile phone signal jammer from jammer-mart:

1. GSM/DCS/CDMA/PHS/3G(TD-SCDMA/CDMA2000/WCDMA)/4G/UHF/VHF and other frequency bands

2. Use white built-in plastic shell, can be customized according to customer needs and color 3. Transmitting power 10W 4. Effective shielding distance adjustable from 1-30 meters (adjusted according to customer requirements before leaving the factory) 5. No damage to human body

Adhering to the corporate philosophy of pragmatism and integrity, we offer our customers and friends with products, technology and services. We are willing to develop together with our customers and industry peers and keep pace with the times, and we are proud of this!

How to obtain a high-power WIFI signal jammer?

Nowadays, people have very strict requirements for many signal interference equipment. Of course, everyone needs to obtain equipment that can meet their requirements at a preferential price, while also designing high-tech and powerful interference functions. Come to Texin Electronics, you will have the opportunity to obtain high-quality signal jammer.

After various types of signals are widely used in daily life, it is really necessary and necessary to avoid the negative influence on the signal in work or daily life. This is why more and more signal interference with good design and new design The equipment is well received by people. And now the newly designed 8-antenna signal jammer is really very powerful, just in this paragraph, a real example of this high-power 8-antenna signal jammer will be introduced to you here, you have the opportunity to see through the following content in detail This kind of high-power multi-purpose signal blocker is introduced.

wifi blocker device

First, just look at the name of this high-power multifunctional signal blocker, and then you will know that the full name of this example is “16W 8-antenna high-power desktop 3G 4G mobile phone Bluetooth jammer”, which of course is designed with 8 antennas and Observing the interference frequency band, you will of course be attracted by it, because this high-power 8-antenna signal interference device can cut off the signal time of CDMA GSM DCS PCS 3G 4G LTE 4G Wimax WiFi and Bluetooth at the same time, which is really powerful. On the other hand, the shielding range of this desktop WiFi 3G 4G mobile phone jammer is also very strong, because the interference range is up to 50 meters in detailed places based on the intensity of the information.

Cell phone jammers were also invented to help people who are interfered by 3G 4G cell phone signals. For those who are looking for high-power signal jammers, they can get good access here.

It is useless to say too much, and then just look at this real example “16W high-power desktop 8 antenna WiFi 3G 4G mobile phone signal jammer”, and then look at a brief introduction of its functions and capabilities. Soon you will know that this is a desktop WiFi Bluetooth 4G mobile phone jammer. It is designed with 8 antennas and can cut off the signals of CDMA GSM DCS PCS 3G 4G LTE 4G Wimax WiFi and Bluetooth at the same time. In this case, this high-power desktop phone WiFi jammer has both the ability of a mobile phone jammer and a WiFi Bluetooth signal blocker, which is really powerful.

Therefore, due to the design of the high-quality cooling fan system, this 3G 4G wifi jammer can always maintain a good working condition, and can easily reach the goal of 24/7 uninterrupted work. Therefore, 16W high power is also used in this high-power 4G WiFi Bluetooth signal jammer, so that the interference distance of the desktop WiFi Bluetooth 4G mobile phone jammer can reach 50 meters, depending on the intensity of the detailed information, which is really great and powerful.

In addition, there are many other styles of high-power advanced signal blockers. If you need high-quality and good-priced products, then you can come here to view more and choose one.

How to use jammer to solve the negative effects of cell phones

There is no doubt that mobile phones are playing an increasingly important role in our lives and have largely changed our way of life. Compared to face-to-face communication, we started to prefer to use mobile phones. You can see the people using their cell phones everywhere.

The cell phone changed our lives

Yes, no doubt, the phone brings us a lot of convenience, we can find a lot of what we want, can bring us a more comfortable life. However, this convenience also gives us a bad effect, so that many do not develop a bad habit.

For example, in the past, when we got together, we always talk face to face. And now we’re looking at the phone screen. Different social software devours our lives. Don’t forget to take photos, upload to Facebook or learn about the dynamics of others every day. Of course, the use of cell phones in the classroom, answering the phone loudly in the restaurant, theater and church phone ringing is also common.

There is no doubt that access to the Internet is required in most offices, but what about the cell phone. After some research, it was found that 50 percent of managers believe that using a mobile phone at work is not good at all. Using a mobile phone at work can distract you from what you are doing. Therefore, the cell phone signal jammer is used to block the signals to make employees more productive.

So we have to take some measures to make the use of mobile phones healthier and more standardized.
Jammer to change the use of mobile phones.

Cell phone jammer is undoubtedly the best way to change the use of cell phones. Imagine, in the classroom, when all students are playing the phone, open the jammer, you can immediately regain the dominance of the classroom. In the need to use quiet places to use then you will not hear annoying phone ringtones. When you meet up with friends, avoid everyone staring at the screen without speaking.

Russia has achieved significant results with the GPS jammer

The Russian military buys jammers and plans to install them on cell towers. The idea is simple: the Kremlin can launch these jammers during the conflict and pray that the jammers reduce the precision of the American missile attack.

drone jammer gun high power

Izvestia emphasized that “the system integration in the transmission and reception of communication signals on the tower of the communication tower formed a network that covered the entire area, like a satellite navigation signal through the dome.

The installation of drone jammer on mobile phone towers in Russia is an unconventional step, but its logic is militarily justified. From today’s perspective, the United States has a huge advantage in cruise missiles, drones and GPS systems.

The Russian armed forces are actively trying to block U.S. military drones that fly over Syria and disrupt flight operations by interfering with the signal from the global positioning system (GPS). Jamming has a “serious” impact on US drone operations, but it is not yet clear how serious Russia’s interference is.

According to the report, the jammer was developed by the Russian military and is highly developed to interfere with even navigation devices with anti-jam technology, and is also suitable for encrypted communication, although encryption is difficult for the drone’s control systems to penetrate sensor output. The Department of Defense declined to comment on whether drones had crashed as a result of the disruption.

The use of jamming in situations where the war has not fully emerged would reduce the effectiveness of Russia during a real war as the U.S. and Allied Forces examine the signals and find ways to overcome them and improve it to find fault-resistant system in use. The U.S. Army is already looking for field weapons that do not rely on GPS to get accurate results.

Given the sudden spiral drop of the drone in the published video, the system is most likely to be a radio GPS jammer . Given that the system is being used by the Russian-backed separatists, it is likely that the system will be another electronic war weapon made in Russia that will be used at the front of a proxy war, both for influence on the battlefield as well as for research and testing purposes.

US officials told NBC News that the Russian military had blocked smaller US drones. Jamming focuses on drones’ GPS systems, which can result in operators not knowing where the drone is, for more extreme results such as crashes.

Scientists are turning cell phones into jammers

Use network vulnerabilities to make your phone a distracting device, interrupt a small city network, only need a dozen cell phones. Researchers have found a way to make ordinary phones whine.

In some cases, mobile phone calls will be disturbed, such as B. In a movie theater, classroom, or conference room. Phone calls are prohibited in some places. The prison will install cell phone jammer to prevent the prisoners from smuggling. This “interference” is unsuitable in the hands of individuals and is expensive, energy inefficient. They are also a security risk because they prevent emergency calls.

Computer scientists have now shown that even commercial cell phones can become wailing due to software changes. A team led by the Institute for Software Engineering and Theoretical Computer Science exchanged the software on cell phones and exploited their weak points in the GSM radio standard. Computer scientists presented their results in a security seminar.

Run optimized open source software on a changed phone. Therefore, they defraud radio antenna masts – just like cell phone jammer – and immerse the frequencies in the small area of the jamming signals. Fault phones can prevent text messages and phone calls from being sent to recipients across the region: falsifying fake identities and answering questions with strange names. In the worst case, you can even block text messages.

Because radio stations send hundreds of square kilometers of status information before they are called. This process is called paging. The study’s lead author said, “A call is ready to be sent to all phones in the area.” It contains an identification number with which each phone can check whether it is on the device. ”

However, the changed telephone answers these queries faster than the other telephones and accepts them, calls and texts. For transmission towers, it looks as if the real recipient has been notified. But he didn’t learn anything. In the best of circumstances, only the phone is lost without a call. In the worst case, even text messages can be intercepted and read, due to the cracked encryption and the lack of identity verification.

So far, computer scientists have only tested the GSM standard more than 20 years ago, but many modern smartphones are used when needed. In addition, the researchers wrote that this gap threatens communication between the machine and the future Internet of Things. Even new UMTS or LTE networks can be vulnerable. Golde said: “Many GSM protocols are duplicated and pager mechanisms exist in both third and fourth generation mobile standards.” A similar attack could be here. “But so far the right hardware, especially software, is missing.

The computers computed in her study mirrored Berlin’s previous ones as long as eleven cell phones could weaken the city’s network. Scientists explain: “They can respond to all paging requests and block cellular areas.” This can affect the entire community. However, more calls were needed to cover requests from more disruptive providers during rush hour, with an average of 200 square kilometers in Berlin, where attackers could cover the area.

cell phone jammer is difficult to track

The researchers say that such attacks can only be prevented by changing the GSM standard. These will be difficult to implement. They complain that the industry refuses to include new standards in the existing network. It will also be expensive, as more identity verification and traffic can address this vulnerability.

Since attacks target not only network operators and groups, but also individual users, they can cause further financial damage in the event of a security breach.