2020 Julypage 7

Good helper when ordering university classrooms – GSM jammer

The current situation of the university classroom

“Classes should focus on listening and attention,” a phrase even schoolchildren are familiar with, and it seems to be a joke in today’s free, mobile college classrooms. To this end, a university in this city was surprised to find that there were no communication devices in the classroom. But for two days, the school voluntarily withdraws this GSM jammer equipment. This seems to indicate that this step is not effective. How can the classroom environment be cleaned?

Instant messaging, editing documents, downloading files and games … Electronic devices such as cell phones and tablets can be used in a variety of ways. “After a while, I don’t think it’s a little less,” she said. “I think it’s a little less,” and it’s a reflection of the lives of the phubbing people, and a lot of them are still college students who get an education on campus.

Coping strategies of university administrators – cell phone jammers.

A university student said online that her school, the central information institute at Tianjin University of Technology, installed a cell phone jammer in every classroom so that students could listen carefully. For each class there is an isolated island that teaches the corridor building and occasionally visits the teacher there.

To this end, the reporter immediately contacted the school to confirm that students should focus on listening well, as management should do so, and investigation and reasoning is required.

Then reporters also got the school must respond, dealing with the matter cui teachers said schools in installation shielding device, there are still many problems to be studied, “the school is a professional counseling department, researching blockers can lead to problems, so these two days can be used to clean the classroom environment of a school education management attempt, and no conclusion. ”Cui teacher admitted that while most students can understand the school’s original intent, it is still difficult to accept, and that Schools can only temporarily rely on the traditional way of teaching management for teachers.

“In today’s excessive media, the impact of the developed communications network has not only been broadcast on university classrooms such as meetings, the reunification order of various routine social activities carried out by the brush clan clan, and WeChat messages have been broadcast.” A consensus in the classroom that the lesson plan should not be destroyed, and it is clear that students play with mobile phones in class.

Professor Wu admits that it is difficult to ensure that university classroom ordering is a widespread phenomenon and that there are currently no good university management measures in place. Although the school strives for management on a short-term basis, schools should encourage student self-control in terms of long-term development, improve the cultural atmosphere of the campus, and improve teaching quality.

The role of wifi jammer

The President of the Police Inspectorate of England and Wales suggested in an interview that wifi jammer – devices worn on the ankle or wrist to block the Internet – could be better punished as prison than cybercrime. “We have to stop using 19th century punishments to deal with 21st century crimes,” he said.

“Although we urgently need alternatives to prison, it’s not technically impossible and unreliable not to use wireless jamming equipment,” said Cal Leeming, who went to prison as a teenager and works as a security advisor. “Even if you were able to implement it without breaking the connection nearby, which in itself would be very difficult because the radio works, it could easily be bypassed with a cable.”

Networks can be jammed by flooding the AP with deauthentication frames in a so-called deauth attack. Assuming the identity (MAC address) of a station in the network, the AP will re-authenticate the real station. The real station will then try to re-authenticate, but it will never succeed due to our blocking of deauth frames and its network access will be effectively blocked.

To be very clear, it’s wrong to call this technique jamming, but that hasn’t prevented a number of developers from using the term, so we’ll only play along for the sake of consistency. To properly interfere with WiFi (or any other type of radio communication), you basically blast a lot of random noise on the frequencies that the technology uses. It’s conceptually very simple, but it’s also a very big violation of our friends at the Federal Communications Commission; So it’s not something you don’t do with consumer WiFi hardware.

smartphone signal blocker

Since high power jammer is out of the question at the hardware level, some developers have found a way to block WLAN communication in software. This is more like a denial-of-service attack, in which tools are used repeatedly to repeatedly spam authentication packets at WLAN access points and clients, forcing them to disconnect. With the appropriate software and a powerful WLAN adapter that supports packet injection, an attacker can stifle legitimate communication.

In any case, the measure will soon be implemented in the UK. At this point, it is anticipated that cybercrime will continue to be controlled in the UK.

In which areas must be used more disruptive?

Put jammers in school

To block student access to pornographic websites, the center informed the Supreme Court on Friday that it is examining the possibility of installing signal jammer on school premises, but is ruling out the possibility of putting the machines on school buses.

The center announced today to the Supreme Court that it blocked 3,522 child pornographic websites last month and asked the CBSE to consider installing mobile whines in schools to block access to such websites.

The government said to a three-judge bench, led by Justice Dipak Misra, that jammers could not be installed on school buses and that steps were being taken to address the child pornography threat as a whole.

“The government has not instructed private and state schools to install high power jammer on school grounds to watch the increase in student sex crime and increasing reports of student-owned porn sites.” State Secretary for HRD Upendra Kushwaha said in a written response.

He also said that it is impossible to install Jammer in school buildings because computers and the Internet are an integral part of the curriculum. However, jammers can be installed on buses to prevent drivers and students from using the Internet. This situation mainly serves the security of the students.

Put jammers in the prisons

The use of mobile phones by inmates was a threat that could not be controlled due to the alleged violation of some prison officials. It was suspected that many crimes in prisons were planned by gangsters who used cell phones to tell the story to their henchmen.

According to a senior ECIL official, German jammers proved to be very effective when installed in prisons and other sensitive facilities for VVIP security. “We installed them in the central prisons of Chhattisgarh and Jharkhand, where a large number of Maoists are housed in high-security tracts. The chief director of Jharkhand’s security log contains these gadgets … they have now ordered more misery,” said the official who gave it preferred not to be quoted.

GPS jammer in civilian areas

GPS jammer can easily be ordered from the Internet and have the ability to protect privacy and prevent third party tracking. These products are beneficial and should be bought. For example, some VIP characters can prevent illegal location using the GPS tracker.

In North America and Europe, of course, such equipment is also required to protect privacy. Because you don’t know when your vehicle is being followed by someone else. GPS trackers are easy to buy.

students

GPS jamming technology can also be used to manage drones. Professor Todd Humphreys and his team have taken control of an unmanned drone using GPS spoofing technology in Austin. They used tiny helicopters to disrupt GPS systems in unmanned aerial vehicles and then provide coordinates so drones can reach their destinations.

It’s not the first time that a drone’s vulnerability has been exposed. It’s easy to buy a GPS jammer on the internet and then crash a drone. And this signal interference is effective for all unmanned aircraft.

The famous Davos Economic Forum has used similar devices to regulate the use of drones to ensure order and security. Such devices have played an important role in the success of recent conferences.

At the moment, the military applications of GPS jammer technology are mainly focused on electronic warfare. For decades, one of the main requirements in electronic warfare has been to geographically hostile transmissions. This has resulted in a plethora of location-finding techniques such as receive signal strength (RSS), arrival angle (AOA), arrival time (TOA), arrival time difference (TDOA), frequency difference of arrival (FDOA) and so on.

In a positioning application, we have a mutual problem: instead of trying to localize a transmitter relative to ourselves, we try to localize ourselves relative to a number of transmitters. Of course we use the same techniques: GPS is an excellent example of a TOA system.

Russian electronic interference with the Finnish and Norwegian GPS networks began in early September 2017 and was classified as secret by the Norwegian authorities until the exact nature of the scenario was determined.

The loss of GPS capabilities from commercial aircraft could certainly have resulted in a catastrophic air disaster, but the Norwegian Intel believes that Russian GPS jamming over Finland / Norway was not the intention of the Russian government or the Russian military.

According to the expert analysis, GPS interference and interference mitigation technology will be the key points for future electronic warfare.

Use the cell phone jammer properly at school

Modern mobile phones as a collection of entertainment, advice, communication and even office work have greatly expanded their functions and are popular with young people. Education in mainland China, however, has unwritten “hidden rules”. I learned that students are not allowed to use cell phones at school, and even some schools that have clear rules in school are not allowed to use communication tools such as cell phones. The school’s original intent was not difficult to speculate as the Dongguan Five president, called Ye, said, “The goal is to give students the opportunity to learn better and rest.” But will students who wear and use a cell phone delay and stop learning? Are the students who use and use cell phones really “bad students”?

As a modern means of communication, mobile phones are not limited to communication functions. The development of many young people in society, the development of the outside world and even personal development is achieved via the mobile phone. Many students are used to surfing the Internet on their mobile phones, checking the news, noticing events, acquiring information and knowledge, and their status is becoming increasingly difficult among young people. One can say that mobile phones have become a mobile encyclopedia for students. However, the school did not understand the underlying trend of the phenomenon and tried to kill it. Of course, standing on the floor of the school made the right decision.

“Mobile phones influence students to rest and learn”, the reason is well-meaning, but the exposed is the “exam-oriented education”, which is deeply rooted, even “shielding” has such a compromise to hide and distort passivation Educational thinking. The potential incentive to analyze his “good intentions” is that the overemphasis on students’ academic performance should be “blocked” for all factors that contribute to the high score.

Elementary and secondary schools prohibit students from using cell phones and shield students’ cell phone signals from the extreme form of “Test Education Thinking”. Given the students’ extensive knowledge and advice, the university’s requirement should be to find ways to create the right conditions and conditions. Use “under siege” to ensure the so-called “learning and resting” when “teaching” quality “high scores”, essence “wasted” students.

In the information age, cell phones seem to have become a necessity for life, and today it is not uncommon for students to bring cell phones to school. Although small and medium-sized schools worldwide are not allowed to use mobile phones during school hours, this phenomenon has been repeatedly banned. In the past few days, a high school in the province has had to turn off the lights and turn on the “high-tech” signal jammer for cell phones.

With the development of smartphones, it has become inseparable for us, while adults are “kidnapped” by mobile phones. In the meantime, students and even kindergartens are being stopped by mobile phones. Don’t let the child take the cell phone, worry about the “missing link” security, let the child take the cell phone, also influence school and growth. Should the child have the cell phone taken to school? Cell Phones, “Condoms” Are Just Children?

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.

Mobile phone jammer for short-range interference

Is school cell phone nuisance protection harmful to the human body and phone? Users should rest assured that the signal jammer emits a low electromagnetic signal strength, it has undergone the Department of Health, microwave radiation test and certification, the test data shows that the signal strength is not too harmful to the human body .. At the same time, the anti-radiation device blocks only the forward signal of the telephone, so that the telephone cannot connect to the base station, so that the telephone itself is not damaged. GPS Jammer Is there a difference in distance between using signal jammers both indoors and outdoors? A: Yes. The effective distance of the signal jammer (which does not have to be 1-40 meters, depending on the distance of the environment) generally refers to the indoor distance.

portable cell phone signal jammer

2017 new model all mobile Unicom Telecom three network operators 2G, 3G, 4G mobile phone signal + wifi wireless bluetooth, wireless network transmission signal, anti-static device silver test room phone signal shield machine, all band Test room phone signal shield machine is my company Foreign advanced technology, imported components, power enhancement, 24-hour, 365-day boot, domestic mobile communication carefully developed high-tech products real situation According to this GPS Jammer model is recommended for school exam rooms, including international dormitories, libraries, prisons, camps, military facilities, troops, churches, secret meeting rooms, factories and more.

WiFi jammer Designed to prevent antenna mining errors only when the correct antenna can be inserted. (Note: If you do not install the antenna to open the power switch, you could damage the machine) Power connection Check the power switch on the host and make sure the power switch is in the closed position, Switch the power supply by inserting the output plug of the power transformer into the host on the left side of the power socket. The compressor input plug is connected to the AC 220V power supply. High Power GPS Jammer / Car GPS Location Jammer / WIFI Shield Bluetooth Suppressor can also be in your home car! Network Information Leak Detector (Electromagnetic Conductor Jammer) Cell Phone Signal Shield Device Test Triple Shield + wireless LAN network shield!

Measures against reconnaissance and intelligence radio interference

Smartphone radio wave blocking In the information age, communication technology for high-speed development, mobile phone has become an important and indispensable tool for people’s daily work and life. However, this brings various advantages.

The proliferation of mobile phones cannot be ignored. I’m creating some issues. Various problems are getting serious with mobile phones. The development of science and technology, mobile phone location tracking and surveillance has become the most important means of reconnaissance and intelligence sources in the world. Therefore, as long as you use it or not, it will be caused by a leak, in a voyeur detection machine, as long as you have a cell phone in a secret location, most likely a unit or individual, a country that also has serious harm to political parties.

All the latest patch elements and integrated circuits, such as cell phone signal jammer, advanced performance, easy installation, long time continuous operation. We have developed a deterrent device that can effectively deal with the problem of mobile phone signal jamming. Countermeasures against radio wave interference Security information such as electric fence networks, new products with specific electromagnetic signals at loci that should protect base stations so that mobile phones cannot receive data is transferred from the security roll to mobile phones. It is not possible to eliminate the negative effects generated by and establish a connection with the base station. Telephone signal jammer will be your loyal defender you can trust and provide a safe and quiet space!

Location of use: Prohibit the use of mobile phones in government, military, finance, securities, prisons, commercial vehicles gps countermeasures public safety command centers, or anywhere. Phone signal jammer has the effect for mobile communication only, without interfering with other harmless electronic devices, and can be widely applied.

Jammer jamming the driver’s phone

Some people cannot withstand all the noise on their daily commute. A cell phone jammer will appear. The number of websites offering similar devices has increased significantly. You can cater for different situations. In many cases it has a great effect. You can interfere with the incoming communication of your smartphone. Mobile phone etiquette should be taught and solved. Designed with adjustable buttons. Many conveniences have been increased.

It makes it impossible to receive radio waves and forces it out of the service area. If you use your phone while driving, it will take a few seconds to answer the call. Most people are dissatisfied with this. There is a risk. How to solve the problem? Introduces a GPS jammer that blocks the signals of all mobile phones within range. Not only are you safe, but you can enjoy a quiet time by taxi. Requires extensive use of signal jammers.

Answering the phone while driving will distract the driver’s attention. The portable design allows you to take it with you wherever you go. Public awareness is rising about the intrusive and disruptive mobile phones introduced in our lives. Many functions are applied. The need for smartphone electromagnetic wave covers for functional mobile phones is also increasing. It may also be used for military purposes. Makes it easy to buy a good cell phone signal jammer.

Jammer adopting excellent technology

Mobile phones play an important role in our lives. Many people are interested in this device. There are noisy talkers sitting next to each other on public transport. I have some dissatisfaction with that person. In order to get a quiet commute, we utilize a cell phone jammer that blocks the mobile phone from receiving signals. Just press the button on the top of this device to disable the use of the surrounding phones. This product uses excellent technology. It is commonly used to control or interrupt a signal.

This is a very useful product for use in places where mobile phones tend to cause trouble. It’s an effective way to stay calm. You may be interested in adjustable jammers. You can get cell phone signal jammers. Choosing the right type of cell phone signal jammer is important. The signal can be blocked in a wide area. Purchase this GPS jammer to protect your personal privacy. The driver used a powerful jamming device to deactivate the tracking device in the working area.

When the jammer is activated, it blocks all signals. Mobile phone jammers are used in places such as movie theaters and libraries where you can enjoy the silence. Other businesses may also want to use jammers. Use this device to help keep people in your building or facility safe. It may interrupt the bus driver’s communication. Sometimes used for prisons and military. There are many choices for radio jammers.