When taking part in the exam, the candidates should bring their own stationery. You are not allowed to bring anything other than the exam regulations. The test room will be equipped with silent wall clock, candidates are not allowed to wear watches to participate in the test, the time indicator of the wall clock is […]
Read MoreThe first university in the United States to block cell phone signals
The campus network is too slow, American universities have come up with great ideas! Purdue university is banning students from watching video in its classrooms and blocking access to Netflix and other video websites in response to a slow Internet connection, the Chicago BBS reported Wednesday. The ban came into effect this week, the report […]
Read MoreRussia has developed a shield system that can stop small drones from trespassing
In order to prevent the foreign small uav from entering the protected airspace without authorization and at the same time do not hinder the normal work of our small uav, the Russian military unit developed a drone jammer system that can identify “friend or foe” and block the radio channel of “stranger”. The blocking system, known […]
Read More4G phone cheating can be prevented in judicial examination
According to introducing, face increasingly “progress” wireless communication equipment cheats means, bureau of justice of Beijing according to “civil air defense” and “technical prevention” photograph is united in wedlock, with “civil air defense” the working principle that gives priority to, equipped to each examination place newest technical equipment — detector of wireless headphone and full […]
Read MoreSignal jammers make cheating impossible
As the 2019 national college entrance examination approaches, a large number of post-00s students will enter the exam halls. Construction site shutdown, car ban, road restrictions, traffic police road, millions of families ready to go…… For this “national college entrance examination”, the education department naturally ready. So, what is the latest situation of guangdong examination […]
Read MoreCan I rent a cell phone jammer
In order to prevent cheating, the use of cell phone jammer, also known as wireless signal blockers, in various examination rooms has increased in recent years. For colleges and high schools, with more exams and more use of the shield, it is generally more cost-effective to buy a batch for long-term use. Some schools will […]
Read MoreWhich mobile phone jammers are suitable for the school examination room
The cell phone jammer in the examination room is mainly used in the college entrance examination, such as the college entrance examination, the graduate student entrance examination, etc. The cell phone signal shield in the examination room is different from the prison signal shield, which has its own distinct characteristics: first, the working time is […]
Read MoreHow should signal jammer of school examination room choose
Because the university is much, student is much, the examination room that all sorts of graduate student entrance exam, English 4 six levels of test USES is very much also. In order to ensure the fairness and fairness of exams and prevent electronic cheating, the use of wireless signal shielding devices (also known as cell […]
Read MoreThe signal jammer is an effective means to ensure the order of the examination room
For many of the school, every year the university entrance exam is coming, to be prepared for the university entrance exam to make, whether the classroom setting and arrangement, or personnel in place, and how to stabilise the examination room order, make school more headaches, however, now of “black” of science and technology means of […]
Read MoreThe evolution of communication cheats and jammers
If you are a heavy mobile phone user, then the battery and signal of the mobile phone is the lifeline, the battery is below 50% or the signal is not satisfied with the feeling of feeling uncomfortable and insecure. For such heavy cellphone dependence, the most unpleasant days of the year are the three days […]
Read MoreWhat is a 4G signal jammer
In our daily life, we often come into contact with 4G signal, but how much do we know about 4G signal? In fact, 4G signal refers to the fourth generation of mobile communication technology, foreign language abbreviation: 4G. The technology is available in td-lte and fdd-lte (technically, LTE is only 3.9g, and despite being touted […]
Read MoreFour advantages of wireless signal shield
In recent years, various types of cell phone jammer has emerge in endlessly, see we are dazzling, but in fact is not all the products are right we applied in place, we need some of the products are common, so not suitable for our application in other areas, there is a very special blockers, also […]
Read MoreHow does a signal jammer work
Recently the university entrance exam is over a period of time, must have many students know their own achievements, review the test the test time whether or not you will find that there is no signal around the examination room during the test, since the ancient times to cheat things exist all the time, especially […]
Read MoreMisunderstanding of mobile phone signal jammer
Cell phone jammer I believe that we are not unfamiliar, in recent years, on the market a variety of shielding emerge in endlessly, everyone external claimed that their shielding is particularly good, the data is full of moisture, let you not clear the good and bad, so we should have a shield what kind of […]
Read MoreParameters of 5G mobile phone signal jammer
5G signal is the hottest topic this year, and the construction of 5G base stations across China has started to carry out 5G signal coverage. How convenient is it to use 5G signals? On the morning of May 10, 5 g digital industry association of hunan province and 5 g + plans to launch ceremony […]
Read MoreWhy signal jammer can interfere with your cell phone signal
Every year during the national college entrance examination, the school has some Internet problems, such as dropped phone calls and slow Internet access, because the school has turned on the cell phone jammer The basic principle of a mobile phone jamming device is to emit the same radio frequency signal as a mobile phone. Because […]
Read MoreWhat factors should you pay attention to when installing the cell phone signal jammer
In what environment can install cell phone jammer and the effect is better, why sometimes the device of mobile phone signal shield effect, or the effect is very poor? In fact, this is due to your use of mobile phone signal shield surrounding the environment. Mobile phone signal shielding with specific installation technology, must consider the […]
Read MoreDoes the cell phone signal jammer make the cell phone signal weak or no signal
When the cell phone jammer is turned on, it can block all 2G, 3G, 4G signals, 2.4g WIFI signals and bluetooth signals from the three operators of China mobile, China unicom and China telecom. The principle of jammer is to jam the frequency sent by the receiving base station and wireless router, so as to […]
Read MoreCan the signal jammer block all telephone signals
When mobile phone works, it is in certain frequency range, mobile phone and base station connect through radio wave, complete data and sound transmission with certain baud rate and modulation mode. According to this communication principle, the mobile phone signal shield can scan from the low frequency of the front channel to the high frequency […]
Read MoreMore and more countries are using cell phone jammers
Most countries, including the U.S., use GPS jammer to thwart cell phone-triggered bomb attacks against government leaders. When President Obama walked down Pennsylvania Avenue after his inauguration, all cell phones were jammed in the area. The U.S. military uses jammers to stop roadside bomb attacks in Iraq. The U.S. Navy has entered the final phase of development […]
Read MoreElectronic jammers were introduced in the United States
We live in a society that thrives on cell phone usage. We keep them on hand 24/7 in case we need to look something up to win an argument, get an important text or email that couldn’t wait an hour for us to check, or take a selfie of whatever it is that we’re doing […]
Read MoreThe defense department is beginning to focus on the use of jamming equipment in the military
The data in the report will be used by BOP and the Department to understand the efficacy of micro-jamming, conduct further evaluation of jamming technology, and develop recommendations for strategic planning. Simply program a small microntroller to generate a random-noise base signal and possibly the serial control strings for the PLL chip and wire it […]
Read MorePrisons rely on the use of ijamming devices
In January, Perfectjammer said its researchers installed the jamming technology in a utility closet adjacent to a 13-by-eight foot cell on the ground floor of the prison’s housing unit, according to the study. It successfully blocked cellphone transmissions in commercial bands between 700 and 2170 MHz, but did not disrupt commercial transmissions when monitored at […]
Read MoreMake or buy a phone jammer
Analysis of aggregate cell phone jammer emissions at prison facilities is beyond the scope of the report, as aggregate analysis would require detailed knowledge of specific facilities’ physical characteristics, the exact placement of individual jamming transmitters within such facilities, and the exact electronic characteristics of the jamming transmitters. Also, you’ll need a good RF-testing equipment, an aluminium […]
Read MoreInterference devices have been used in various fields
A jamming pod is essentially filled with antennae and radar transmitters. This equipment is vital for a warplane to survive modern combat. The first fight of every mission — a bombing run, surveillance or dogfighting — is waged across invisible parts of the electromagnetic spectrum. Radar can overpower other radar, sensors can be spoofed with […]
Read MoreThe U.S. plan to set up a special electronic jamming forces
The Russian army has established a ground-based unit specializing in defeating enemy drones. The unit—the first of its kind in Russia—operates electronic jamming systems that, in theory, can sever the radio connections between unmanned aerial vehicles and their operators. The Russian military has been jamming some U.S. military drones operating in the skies over Syria, […]
Read MoreCell phone jammers are used by law enforcement forces
Federal government wants drivers to stop using, looking, and typing on their handheld devices or cell phones. On the other, the government is against a simple solution to guaranteeing people stay off their phones while behind the wheel. At the heart of the opposition to jamming is a concern that it takes away a drivers […]
Read MoreCell phone vigilante – signal jammer
Cell phone jammer is a device used to block mobile devices from receiving signals from their base stations. Cell phone jammers were originally designed for law enforcement and military use, so they could block communication between terrorists and criminals. They’re pretty common in prisons as well, where cell phones (obviously) aren’t allowed for inmates. Once […]
Read MoreSignal jammers create a quiet environment
This signal shield holster with signal isolation function, when you put the phone into the holster, the signal will stop transmission. This is a very gentleman’s way of shielding, neither disturbing others, nor let others bother you. In some scenarios, the signal is likely to cause unfair events occur, so most of people prefer to […]
Read MoreSignal jammers help regulators manage
This product for all the current GPS satellite positioning system and the characteristics of wireless videotaping, in the radius of 5-30 meters within the effective GPS satellite signals and wireless video transmission signal truncated, so that your whereabouts are not worried about being tracked, videotaping. Prison cell phone jammers have become a necessary addition to […]
Read MoreWar to prevent precision attack of GPS signal jamming devices
Why do you say that? Maybe someone will ask that way. Because such GPS jammer have a camouflage appearance, can be disguised as daily necessities, in the interference process is not found. For some places that need to remain quiet, such as conference rooms, churches, classrooms, cinemas and other places are essential items. Because the interference source […]
Read MoreA wide range of jamming weapons is more advantageous in war
Therefore, this new 6-band jammers in addition to a large range of interference, you can also control the interference band separately. With LED indicator light, you can clearly understand the current interference band, you can always adjust according to need. This jamming device size is very small, easy to carry. Can interfere with 6 bands […]
Read MoreRussia dominates the world with signal jamming weapons
The 8 bands GPS jammer has a very large range of block, can jamming a variety of frequency bands. It is very convenient jamming equipment. The Russians began jamming some smaller U.S. drones several weeks ago, the officials said, after a series of suspected chemical weapons attacks on civilians in rebel-held eastern Ghouta. The Russian military was […]
Read MorePrecision strikes of jamming weapons are becoming increasingly important
This cell phone jammer has a power adjustment function, according to the need to adjust the jamming range. At the same time with remote control function, no need to personally open the switch. Can be used in conference rooms, gas stations, hospitals, theaters, recording studios, banks, churches, classrooms, houses, etc. The US Navy’s USS Theodore Roosevelt aircraft carrier […]
Read MoreThe wide application of high-power signal interference equipmen
The wifi jammer has a very large range of block, can jamming a variety of frequency bands. It is very convenient jamming equipment. Can be used for cinemas, classrooms and other places, completely shield out the annoying phone ringtones. The telecommunications industry has long opposed jamming cell signals, saying that could interfere with legal cell users nearby. […]
Read MoreUs military develops RF signal jammer for uav
With drone sales expected grow exponentially in the near future, and an increasing number and severity of drone incidents occurring daily, DroneShield launched DroneGun to respond to nefarious use of consumer and commercial drones and the resulting need for effective countermeasures to drone intrusions. DroneShield aims to help public and private sector customers, where allowed […]
Read MoreThe us army’s unmanned aerial vehicle jamming device has made its debut
It doesn’t appear that the drone was hit by a projectile or laser in its descent (though evidence of such would certainly change this analysis). Barring a physical projectile, the known non-kinetic methods for stopping a drone are threefold: radio frequency (RF) jamming, global navigation satellite system (GNSS) jamming, and spoofing. With RF jamming, the […]
Read MoreGPS jamming devices determine the future battlefield
The electronic jamming equipment would be consistent with a 2016 U.S. Department of Defense report that said China’s People’s Liberation Army views such electronic warfare as a “force multiplier” and “would likely employ it in support of all combat arms and services during a conflict.” When you need a GPS jammer to work for a long time, […]
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