Tag Wifi | Blog Jammer-mart | Jammers WIFI- News About Jammer-mart signal jammer blog

GPS jammers are becoming more and more popular

As GPS systems become more and more popular, GPS signal jammers have become necessary for us. You may want to know what GPS jammers are and what potential applications they have. In order to explain the GPS jammer, we first need to know how the GPS system works. Global Positioning System—GPS for short, is a system used by many people, companies and military for navigation purposes. The GPS system uses a series of satellites that emit radio signals. Such signals reach the electronic GPS receiver to determine the position by triangulating the shape. GPS can be used for personal portable electronic devices, vehicle navigation and positioning systems, and can also be used for small GPS tracking devices. The position of a person can be found by triangulation, which is a method of measuring three separate points to calculate the position. In the GPS system of the vehicle, the position of the car is measured by three satellites orbiting the earth. GPS can accurately transmit location information to the receiver through triangulation.

gps wifi cell phone jammers

Let us now look at GPS signals, which are radio signals occupying specific frequencies. GPS actually has two main frequencies, one is for public and non-military use, and the other is only for the US military. Since GPS is nothing more than weak radio waves, although technical equipment and expertise are required for this purpose, GPS jammers can be used to block or distort these waves.

GPS jammers were originally created by the government for military organizations and spy agencies. Some themes can be combined with cell phone jammers (also called cell phone jammers and wifi jammers). Uses include messing up the enemy at exact locations, or making enemy GPS guided missiles or bombs fall in these places.

Recently, civilians have sought these devices to ensure their privacy in a world increasingly tracked by GPS. However, most civilians do not have the technical ability to create their own devices because it is much more complicated than blocking radio signals through basic radio interference.

How can the villa area interfere with the mobile phone signal to prevent theft?

1. The signal of the villa itself is poor, it is far from the signal tower, and the mobile phone cannot receive the signal in the weak signal area.
2. The thick structure of the wall in the villa area blocks the signal.
3. The signal is bad due to interference.

Since the mobile phone receives signals through the propagation of electromagnetic waves, the base station establishes a connection with the mobile phone by transmitting electric waves, so as to achieve the purpose of voice calls. Therefore, the cell phone jammer of electromagnetic waves will have an adverse effect on mobile phones.

network wifi jammer Buy

It is normal for the mobile phone to display 4G signal and make a call to 3G or 2G signal! It is not caused by cell phone failure or base station failure. The following explains why this phenomenon occurs:
1. 4G has only one data channel (commonly called the Internet channel); 2G and 3G have two channels, data channel and voice channel. So 2G and 3G can surf the Internet and make calls, while 4G can only surf the Internet because it only has a data channel.

2. In the early days of 4G, in order to satisfy the requirement that the mobile phone can make calls when using the 4G network, a solution called CSFB (Circuit Domain Fallback) was developed. Automatically fall back from 4G network to 2G or 3G network before starting to make calls. But this technology has a disadvantage, that is, you cannot access the Internet when making a call, so it is inconvenient for some business users.

3. Now that 4G technology has matured, in order to satisfy mobile phone users with a better experience, VoLTE (High Definition Voice Call) has been developed, which is a technology that can use the 4G network to make calls while also being able to access the Internet. The mobile phone uses the data channel of the 4G network to make calls and surf the Internet, and the call quality is clearer than that of 2G and 3G.

4. Dropping due to handover failure. Network operators use base stations to transmit wireless signals to serve users. The range of base stations is limited. Therefore, there may be many base stations in an area. The combination of all base stations is a network system. Each base station has its own range. If this range is exceeded, the mobile phone must replace the base station to keep the mobile phone in the network at all times.

Overflying drones brings security risks anti-drone systems become the main force

The development of unmanned aerial vehicle technology has threatened the safety of many fields, especially some indiscriminate flying drones, which has brought security risks to important places such as airports. In order to be able to effectively prevent the occurrence of dangers and to effectively solve the interference of drones, Beijing Shenzhou Mingda Company has made great efforts to develop anti-UAV defense systems to protect safety and privacy in various fields. As an expert in anti-UAV systems, Beijing Shenzhou Mingda has developed various types of anti-UAV products, which are applied in various fields and scopes, and become the main force in combating unmanned aerial vehicles.

handheld drone jammer light

It is understood that the Greatjammer drone jammer mainly uses signal infection technology. Through advanced interference technology, the signal between the drone and the operator is blocked, and the data transmission is cut off to ensure that information is not leaked. Not only that, the Beijing Shenzhou Mingda counter-UAV system can also detect commercial small UAVs, and use signal interference technology to locate the invading UAV in mid-air, and at the same time, change the UAV’s route and target. Drive them out of defensive airspace, or prevent other UAVs from entering the airspace over areas that are prevented and controlled by counter UAV systems. The most important thing is that Beijing Shenzhou Mingda has continuously upgraded its drone technology during its development process. No matter what kind of drone it is, it will be detected by the Beijing Shenzhou Mingda UAV countermeasure system and be effective. Interference, there will never be any slipping fish. As the industry’s leading manufacturer of UAV countermeasures, Beijing Shenzhou Mingda has leading anti-UAV technology, guaranteed product quality and good interference countermeasures. It is a wise choice for all walks of life to counter UAVs.

The prison service has requested the installation of a signal jammer

Due to concerns about the ineffective jammers installed in the Rajasthan Central Prison and the use of cell phones by inmates, the State Prison Service asked the Home Office to transfer the total income of the three prisons from ‘worth Rs 2012 for best results.

Not only is the government struggling to restrict phone use, prison security is also affected. The High Court also takes these matters seriously. The prison official added in a letter to the government: “In order to prevent the prisoners from using the telephone and to better interfere, we ask you to approve the transfer of these 57 jammers to the two central prisons of Bikaner and Bharatpur. And “Ajmer”.

The prison department has requested a budget of Rs 7,200,100 for the transfer of the jammer, Rs. 1.12 million for the new tower, and Rs. 188 crore for the annual maintenance of the equipment.

As we all know, mobile phone signal jammers are very common. People will choose to buy mobile phone signal jammers to maintain their privacy and protect their independent space. Where will the jammers be used?

armband mobile gps jamming

Cell phone jammer is mainly used in various places where cell phone use is prohibited, such as various inspection rooms, schools, gas stations, churches, courts, libraries, conference centers, theaters, hospitals , governments, finances, prisons, public security and military might.

It is understandable that the WiFi cell phone signal jammers in the market can limit cell phone signals that are 500 meters from the transmitting station and have a radius of> 20 meters. The shielding radius is adjustable, it only protects the cellphone signal without affecting other electronic devices. Save energy, the power is 20W-480w.

The mobile phone is in a certain frequency range when it is operating. The mobile phone and the base station are connected by radio waves, and the data and sound transmission is supplemented by a certain baud rate and modulation method. Taking this communication principle into account, the mobile phone jammer will sweep the frequency from the low to the top of the front channel at a certain speed during the working process. The mobile phone seems to search the network, there is no signal, no service system and other phenomena.
The signal jammer is very convenient and practical, you don’t have to worry about whether it will be difficult to use.

Mobile signal jammers do not apply to prisons in Punjab

Sources told HT that put aside jammers that can’t control the newer and faster 4G networks, but many jammers aren’t even equipped to interfere with 3G.

When it comes to blocking signals of illegal cell phone use by prisoners, Punjab’s prisons are still blocked in the era of 2G reception. So far this year, inmates in state prisons have seized 600 cell phones, but gangs in particular continue to update their Facebook pages in their cells, except for activities aimed at profiting. the security of their operations.

The source told HT that put aside jammers that can’t control the latest and fastest 4G networks, but many jammers aren’t even equipped to interfere with 3G. Only Kapurthala Prison and Nabha High Security Prison have 3G jammers.

Senior Mobile Network Engineer Sandeep Law explained his technicality: “A wifi jammer with a capacity of up to 900 megahertz (MHz) can only control 2G networks. However, the 2100 MHz frequency used in 3G and 4G technologies is more powerful. Make these jammers obsolete. Upgrading is expensive. ”

Power GSM 3G 4G 5G Jammer

Police sources said that after Nabha escaped prison in November last year, a group of gangs released their five spouses and a terrorist from the Khalistan Liberation Front (KLF), but did not intensified the disruptors. It was discovered during the investigation that the gang that attacked the prison kept in touch with their accomplices in the prison by internet phone.

“In the absence of these jammers, criminals can freely use all mobile and internal means of appeal, many of which can even freely manipulate gangs and other activities from inside the prison.” With the rapid expansion of mobile networks, the market is very easy. 4G SIM card, “the head of the prison department declined to be named.

It should be noted that prison officials have repeatedly admitted that it is “almost impossible” to control the use of cell phones in prisons as inmates manage to transport them to prison through various illegal means (including bribery). guardians).

While acknowledging this problem, IPS Sahota police, the director general of the prison said: “We have submitted a proposal of Rs 8 crore to the Interior Ministry to upgrade the phone jammer to the 4G network of the Nabha central prison, Patiala. , Bathinda and Amritsar. We hope to be sanctioned soon. “

About the need to use interfering devices in public places

Many people don’t think installing cell phone jammer in schools is a solution, but because children have access to the internet in several other places, such as at home or in open Wi-Fi areas in the city. It’s a very good plan. Adolescents do not have enough maturity to use the Internet properly. From time to time, out of curiosity or under pressure from peers, they may come into contact with content they shouldn’t have. Even if someone accidentally makes such a mistake, it is a very good idea to install jamming devices.

gps wifi cell phone jammers

Apart from basketball, what makes me more happy than sports is being able to watch movies in the theater. This is a rare hour and a half for me to get away from the real world and immerse myself in the fantasy of others. Using a mobile phone in the theater is distracting. Like a drunken fan of sports games, it’s distracting. If you look carefully, a nearby ringing phone suddenly interrupts your thoughts, which is terrible.

If you’re attending an emergency meeting and don’t want to join unwanted calls or messages during an important meeting, you can take advantage of mobile phone signal interference technology. Using 3G / 4G Phone Jammer, this technology allows people to avoid calls and text messages without turning off the phone. When this technology is enabled, the signal from the base station will be blocked directly and you will not be able to communicate with others via your mobile phone.

GPS jammers keep others from knowing your location

The competition with the tablet development industry is very attractive. Since Apple’s famous iPad changed the world of computing, users like IBM wanted to change it in 1981 and get a handheld entertainment device in their hands as soon as possible.

Artificially since the last month of 2011, Apple iPad tablets have been a steamroller among the competitors. According to Apple CEO Tim Cook, their iPad owns 75% of all tablet sales in the United States. According to reviewers and customers, the biggest headache for Apple’s rivals is that no company has developed a tablet that matches the quality of the iPad. When talking about tablets, Apple’s iOS Android is an easy hit.

But now you can ask: how is this information related to GPS tracking? Frankly, tablet competition can change the way these GPS tracking systems work. Take, for example, Asus Transformer. Consistent with some reviewers, this Android-based tablet computer is the iPad’s strongest competitor, with the exception of the Samsung Galaxy Tab model. Asus has developed a great product with a well-integrated keyboard that makes it easy to turn this tablet into a nice netbook.

4g cell phone jammer

Unlike the iPad, and like many mobile phones, the Asus Transformer GPS technology inside the GPS device makes it surprisingly accurate and easy to track your location. But there is a problem. It doesn’t seem to work very well. Asus mentioned customer complaints about embedded GPS in tablets. This can be a bit slow and there is an embarrassing location delay.

So what is the solution? Along the Asus Germany Facebook page, we have developed an update to get GPS satellite signals using the tab Wi-Fi connection. So far, using Wi-Fi to completely replace GPS satellite signals sounds wrong. Wi-Fi signals are not so common all over the world, but signals from GPS satellites can be sent all over the world. Emerging technologies can eventually eliminate this question.

Of course, if you’re very concerned about privacy protection, you can choose the right GPS jammer and simply block the surrounding radio quickly to hide your location.

The future market trend of the shielding device

The State Security Bureau, in cooperation with the Radio Management Committee of the Ministry of Information Industry, Northern Jiaotong University and other institutions, formulated the first industry standard, “Technical Requirements and Test Methods for Mobile Communication Jammers for Security Conferences”. With the guidelines relaxed, experts said the market potential of shielding devices is huge and the industry’s scope for development is extremely wide. At present, the global cell phone ownership has reached 2 billion. It is estimated that the demand for shielding devices is 1% of the total number of cell phones. That is, for every 100 mobile phone users, there is one shielding device user. This user can be It is a safe place, a secret place, a quiet place or a public place or a person.

The shielding system is not only used in high-level places such as arsenals, political parties, governments and military, public safety, finance and trade secrets, but it can also be used in places closely related to people’s lives. Experts believe that based on the latest usage analysis, the cell phone signal jammer market size could reach tens of billions of yuan.

8 Antennas High Power blocker

The rapid development of modern communication technologies requires that companies of technological security keep pace with the times and continuously develop and strengthen their own strengths in order to meet the diverse challenges. The widespread popularity of cellular phones not only brings convenience to people, but also poses new problems for the security and confidentiality of communication. Eavesdropping, leaks, exam room fraud, medical accidents and gas station explosions occur endlessly and accelerate the shielding of cell phone signals. Promotion and use. It is mainly used in exam rooms, prisons, gas stations, cell phone bombing prevention, oil depots, liquefied gas stations, detention centers, interrogation rooms, courts, labor reform teams, conference rooms, theaters, churches, libraries, school dormitories, etc. for security and confidential occasions ( confidential offices, negotiation rooms, mobile vehicles, mobile politicians and dignitaries of companies) etc. as well as cell phone signal jammers are becoming increasingly important in social life.

Depending on the location, Jammer shop has designed and manufactured different kinds of jammers, designed and shielded different places, fully exploited the product performance, and greatly improved the effect of the jammer. It beats the crowd with its excellent performance. And received unanimous praise from the industry!

Within a certain frequency range, the mobile phone and the base station are connected by radio waves, and the data and sound transmission is completed with a certain baud rate and modulation method. The jammer scans from the lower frequency of the forward channel to the upper end at a certain speed during operation. This scanning speed can lead to garbled interference with the message signal received by the mobile phone. The mobile phone cannot recognize the normal data sent from the base station, so the mobile phone cannot connect with the base station and achieve the purpose of shielding the mobile phone signal. The mobile phone seems to be searching the network, no signal, no service system, etc.

Mobile phone shielding device selection guide for examination rooms

By the annual exam season, all parties have begun to prepare for the exam, and the invigilator has various tricks to prevent high-tech fraud. Among them, the shielding device used in the examination room is still an anti-fraud shielding device. However, Chengdu Saiyue Communication reminds that there are many types of shielding devices, and users should clarify their needs before purchasing them to avoid test room accidents due to poor shielding effects, and pay attention to the correctness of the method of use.

First of all, I want to clarify the place of use. Most schools use test room-type mobile phone shields that are suitable for long-term work and are durable. The second is how big are we in the shielded area? For example, if it is a room of 100 square meters or a venue of thousands of square meters, if the area is large, the power must be larger, and if the area is small, the shielding power must be considered small. Then there is which frequency bands need to be shielded. Are all China Mobile, China Unicom, Telecom and CDMA shielded? Still only need to shield part of the frequency band.

Phone Wifi signal jammer

At this time, we remind everyone that if you want to buy a suitable shielding device to achieve the effect, it depends on the method used. The main points are as follows:

1. It is recommended that the indoor shielding device be placed at a height of about 180cm-220cm above the ground, with a forward angle.

2. Whether there are obstructions (such as walls, metal products, etc.) between the wireless jammer and wireless communication equipment (mobile phones, etc.). The interference signal emitted by the jammer will be attenuated to different degrees after passing through the obstruction, please try to avoid it.

3. The weaker the wireless communication signal strength in the use environment, the stronger the theoretical shielding effect of the shielding device.

4. The farther the jammer application environment is from the signal tower, the stronger the theoretical shielding effect of the jammer.

Cheap GPS jammers pose a major threat to drones

Jammers that can be bought for as little as $ 50 threaten commercial drones, but options exist.

With the rotors buzzing and the airframes racing through the air, drones can be very dangerous if flights don’t go as planned. Much has been gnawed about the FAA’s measured approach to implementing commercial drone guidelines, but the fact is there are real dangers, even from bad actors using inexpensive GPS jammer.

phone signal jammer

GPS signal jamming technology is evolving, decreasing in size and cost. These days jammers can be bought online for as little as $ 50. Jamming has long been a threat to military assets and is becoming a commercial problem today as commercial drone shipments become a reality and attacks become ubiquitous around the world. This threat now affects trade, law enforcement, and defense drones on critical missions.

During a choreographed light show in Hong Kong in 2018, 46 drones fell from the sky due to a jamming device. The resulting property damage and loss of hardware is estimated to cost an estimated HK $ 1 million. Almost all drones have security protocols that can be used to send them home or to a safe landing site in the event of a disruption. However, these functions were found to be ineffective at the Hong Kong show.

“These are professional-grade drones already built with technology that will guide them back to the launch site,” Anthony Lau Chun-hon, director of the events committee, told the South China Morning Post. “But the signals were so strong that many of them just fell out of thin air.”

Drones and their services are decidedly dependent on GPS signals. Although the drone may have backup methods (INS / OPS), GPS references are still required for positioning, navigation and stabilization. GPS attacks are therefore the easiest way to shut down a drone and potentially cause harm to life and property.

The good news is that solutions for drones are arriving with commercial quality and coming straight from the defense sector. One comes from a company called infiniDome, which makes a device called a GPSdome that is built into a drone’s GNSS receivers and uses a unique interference filter system that combines the patterns of two omnidirectional antennas. GPSdome analyzes the interference signal in real time and feeds its properties into infiniDome’s proprietary algorithm to filter and reject attacking RF interference, so that the UAS continues to rely on GPS signals during a jamming attack. If an interference signal is detected, the GPSdome notifies the operator of possible signal interference.

Easy Aerial, a leading provider of autonomous, drone-based surveillance solutions for commercial, government and defense applications, recently added GPSdome to its range of autonomous unmanned aerial systems for military use.

“We chose GPSdome because it was a proven solution that was a perfect fit for the various missions our customers routinely fly in some of the most inhospitable and hostile environments in the world,” said Ido Gur, Co-Founder and CEO of Easy Aerial. “While our systems have multiple redundancies on board, GPS signals for maintaining position, navigation and timing accuracy are critical to ensure uninterrupted operation.”

This type of lightweight, small form factor, low power shielding technology is a critical step towards widespread adoption of commercial drones. Other companies like Sepentrio also take GPS interference in drone applications with integrated sensor solutions seriously.

It is certain that the problem of GPS interference and spoofing will receive more attention in the coming days. Fortunately, developers seem to be beginning to see tools that they can use to counter the growing threat.