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In Chongqing China 2017 college entrance examination, there are more than 20 million students going to the city's 39 test area, 117 test sites of more than 7,000 examination room for the knowledge of the contest.

In order to prevent candidates from using mobile phones and other wireless communication equipment for cheating, government use the cell phone jammers during the contest without interrupting the signals around the test.

It is reported that this year is the second year after "cheating should be put in prison", so the discipline of the examination has become the most important, the opening of the jammers to test the proportion is 100%.

As the main city of Chongqing college entrance examination centers are in the downtown area, a large number of wifi jammers will have a great impact on the normal communication of the surrounding users . How to protect the college entrance examination of the examination room, but also to protect the normal communication of the surrounding users, it has become a problem.

In response to this problem, Chongqing Mobile has taken three initiatives: First, increase the eliminate efforts to surrounding pseudo-base station and put an end to lawless elements of the candidates during the college entrance examination parents psychological cheating, training and other illegal false information.

Second,control the effective jamming radius of the jammers so that be sure that it would not effect the surroundings.

After two days Chongqing Mobile detected a total of 7 pseudo-base station to reduce the illegal SMS more than 50,000 articles, compared to last year's test period, this year's test site within the shielding ability, test network outside the download speed increased 5.2mbps, basically Keep the usual level.

In Haikou City, Longhua District Court tried a case in which a man used the signal jammer to intercept lock signal for stealing, the defendant Qinmou for theft was sentenced to six months and fined 1,000 yuan.

Qinmou took a car remote control jammer to the Longhua District of Haikou City Jinlong Road Park State Park City looking for committing the crime in September 15, 2016 at noon.More than an hour later, Qin found that Ms. Qu and her family drive a car down the road and parked in the parking lot.He immediately open the remote control jammer, resulting in the electronic key lock can not be used to lock the car.Qin slipped into the car and found the back seat of the pad at the place of a black handbag, it stole a package with a RMB 1,800 yuan "red envelope" and fled the scene.

Tasted the sweetness, Qinmou decided to do it again, at noon on September 27, Qinmou once again carry the car signal jammer to the parking lot on the state Park City looking for the target. When its the same way from a pickup truck on the high theft of a bag of cigarettes, Wang was arrested after the police on the spot.

G.P.S has always been a prolific mobile application to make users aware of unknown locations and to guide in reaching new destinations with an ease.Apple has finally got registered an authentic technical innovation which will enable extra accuracy in indoor spot mapping and place detection. The technology is creating ripples all over the world as it does not require G.P.S support and has its own mechanism.It means that the GPS signal jammer cannot deal with it.

Apple was awarded a patent for a technology that should allow for much more accurate indoor location detection and mapping, even in the absence of GPS. Almost every smart mobile phone makes use of G.P.S for navigation and location mapping.The new patent, which was picked up by Apple Insider, uses a combination of Wi-Fi access points, location databases and other data to determine proximity to what the patent called “presence areas.” It then analyzes various data such as Wi-Fi signal strength and building architecture to determine a more precise location.

GPS often fails to provide accurate location data for when your are indoors, so this patent could help alleviate that problem.

Apple has also shown interest in improved indoor mapping in the past. With iOS 7, it added support for iBeacons, which use Bluetooth LE to accurately determine location.

. Apple’s new technique is an aggregation of on board location data basis and Wi-Fi access points to attain a stupendous accuracy in outdoor as well as indoor localities. The system incorporates a long series of factors with the major inclusions like ‘presence area’ which is commonly known as hardware communication range and filtering of access points. The technology allows many smart non-G.P.S gadgets to easily tracking locations with an amazing precision.A wifi jammer can interfere with WiFi signals which can influence to it.

Apple has also made a couple of acquisitions related to indoor mapping. In March 2013, it acquired WiFiSLAM for $20 million, which uses technology that sounds similar to this new Apple patent in order to determine location using Wi-Fi signals.

Why people use jammers, what a person needs to get those equipments that are actually quite expensive , or even illegal to block signals? This question has been asked many times over the years. But it is not difficult to understand that everyone has the right to protect his privacy, we generally take the jammer just to achieve this. Maybe you are one of those who are sick for all those who try to really modernize and can not stop talking on their mobile devices.

Today is an era of rapid technological development. Mobile phones have been widely used, it gives us a huge convenience but also brings trouble. Perhaps you will encounter this situation: when you want to enjoy the quiet time, someone next to you answer the phone loudly and it seems it would never stop. What would you feel at that time. If you want it to stop, there is a simple solution that you can take, which is as effective as simple. The answers to all questions are called mobile phone jammer. A man in Philadelphia USA who got fed up with folks yakking during his daily bus ride use a cell phone jammer to stop it.

The above questions are personal but also everyone will encounter. And for some organizations, the company, the phone also brings some trouble. Like some companies use mobile phone jammers in order to let employees to work hard, school students use mobile phones affect learning, which is a big problem. At the same time, how to prevent the use of mobile phones in prison is also a problem. These problems are derived from the use of mobile phones, and mobile phone jammers can do a favor.

The only negative situation here may be that these blocking devices are illegal in most countries because you can guess it is a solid reason. After all, you may prevent someone from making an emergency call to the police or the hospital. That's why you do not recommend using this device if you live in a country where the law gives up the use of cell phone jammers. On the other hand, if you think no one knows you are interfering with the signal, you can always buy the wifi jammer from the Internet.

As we started to say, there are many ways to get mobile phone jammers, but the easiest way is to buy from the internet. But be sure to choose the appropriate and reliable website!

These days, it is almost impossible to catch a movie, or eat in the restaurant, and will not let the phone sounded interrupted.

"Sometimes I went to a restaurant where I wanted to enjoy a meal or coffee, read quietly, and someone started talking loudly on their cell phone, which was annoying," said Charles Crowder, a resident of Oakland, California.

The world's more than 100 million mobile phone growth, the problem may be getting worse. In the United States alone, it is estimated that within five years, 84% of US citizens will have mobile phones.

However, the rebound for cell nuisance has already begun. Restaurants in the United States, requiring visitors to turn off the phone logo is more and more common. In Baxter State Park, Maine, in addition to emergency situations, the phone is illegal. Resistance even reached the White House: President Bush reportedly banned mobile phone staff meetings.

In fact, several governments around the world are considering the legalization of cell signal technology, in the public space on the phone to add rituals.

Mobile Phone Jammers have been in existence since 1998. Interference to send low power coded radio signals or modulated radio waves.

The jammers work in one of two ways. Some devices set their signals to the same frequency as pagers and mobile phones, thereby disconnecting traffic between the handset and the base station. Other people as an electronic filter, fool the phone, that no frequency can be used to make or receive calls. Interference only affects the specified area (most of the radius is tens to hundreds of feet) and can only work on cellular transmissions.

Sounds like a perfect solution for the phone? The problem is that in addition to Israel and Japan, most developed countries, including the United States, Britain, Canada, Switzerland and Australia, mobile phone jammers are still illegal.

However, the tide may be changing. In the past spring, both Hong Kong and Canada have announced that they will consider legalizing the means of interference to curb public telephone behavior. At about the same time, the leaders of the Indian parliament revealed that they had installed the WiFi jammers to avoid interruption during the meeting.

However, this major change in the legal outlook is not so far-fetched as the public's dissatisfaction with chirping continues to grow. Last year, Letstalk.com found that 57 percent of Americans favored phone calls from restaurants, theaters and other public places.

What do you think?

If you are already aware of what the jamming device is, then you will be glad to know that one of the latest models of the technology is better than before, and we will explain why. First of all, many people will be based on their own needs to buy a different jammer. This means that you may need to get the phone jammers, GPS jammer, remote control jammer and so on.

Imagine the following situation. When you are in a quiet place where the phone should not be used, but someone kept talking to disturb everyone, this time, obviously, a cell phone jammer is a good choice. If you think you are being tracked, you do not want this to happen - in this case, then you need a GPS jammer.

If you think you not only need a mobile phone jammer but also need a GPS blocker, this time you certainly do not want to take two devices, because it is very troublesome. Then this is why the combination of jammer come here. There are many models out there, you can go to choose what you need, so that a small device will be able to meet your requirements. Here, we recommend an 8 antennas signal blocker that blocks most of the frequently used signals and is reasonably priced.

But nothing is perfect, we should tell you, while blocking the higher the frequency, the more the battery runs out. So if you are looking for portable jammers - please note its battery specifications. Here, our batteries are mostly able to let the jammer for 2 hours of work, and free to provide car charger.

We hope to meet your requirements, if there is any problem, you can always contact us.

Nowadays cell phone is widely used and everyone would keep a phone wherever they go.But there are some situations that we need to be quiet or solemn like court, church,meeting room,school examination room.And sometimes people need to be quiet to learn,to read. That is what cell jammers used for.Besides, some one can eavesdrop your conversations by intercepting your mobile phones signals.And they can also track you through mobile phone tower triangulation which is not the same with the GPS.

In the category we provide you the powerful mobile phone jammer that used in the room like church and handheld jammers for someone that need to protect their privacy or confidential informations.And if you want to find a device against GPS tracking,you can visit the GPS jammer category.

If you are an active mobile phone user you probably know that there is a really wide variety of methods major mobile carriers use to promote a new mobile communications standard and advertisers rarely study the technical side of that standard. That's why they always call a new standard of mobile communications a new generation. We in Jammer-buy  want to explain the mobile generations.

We often face pretty unknown mobile generations, 3.5G for example. In a matter of fact even a 3G is a simple slogan that was created for promotion a technology that was simply faster than 2G. In the meantime, 2G has its own divisions, which were created by promoters as new standards were introduced in a second generation. They are 2.5G that emerged when the GPRS technology was presented and 2.75 or 2.9G for promoting EDGE standard. But nevertheless all those 2.5 and 2.9G were the second generation.

So 3G evolved into HSDPA (High-Speed Downlink Packet Access), HSPA, or 3.5G, which is up to five times faster than 3G. Predictably enough, 4G networks are now commonplace, based on technologies called Mobile WiMAX and LTE (Long-Term Evolution). 5G is already in development and expected to become available around 2020.

If you need to use broadband on the move, it's a brilliant solution. Anywhere you can get a good (3.5G or 4G) signal, you can get high-speed broadband.

The drawback is that you're using a cellphone network for your access, so the quality of your connection can vary drastically. If you're working on a train, for example, you can expect to be regularly connected and disconnected as you move in and out of cell coverage—just as a cellphone call gets cut off when you go through tunnels and under bridges. Right now, I seem to be working on the edge of a cell, so the quality of my connection is constantly flickering between 3.5G and 3G and my connection speed is varying from moment to moment. 

But regardless the 3G is rather popular among not only smartphone users. That generation is frequently used in hidden video surveillance, because data transmission speeds allow to stream video in real time and low energy consumption will ensure that a hidden wireless camera will work longer. That's the main reason of the growing popularity of gsm signal blockers.

Android based smartphones display H with a 3G icon in a status bar, when connected to a 3G network. The reason is that Android devices can distinct a common 3G network form its more advanced superstructures. The H letter is diplayed in the status bar when the data transmission speed in the network is 2-15 Mbit/s. We should also mention that 3.5G is actually a brand name for all the superstructures of 3G.

Another interesting fact is that the LTE standard, that is associated with a fourth generation of mobile communications is actually still closer to 3G. LTE failed to meet the ITC's expectations and that's why it is still 3G, but much more advanced. They even use different frequencies, while 3G works with 2000-2100 MHz, LTE uses 875 MHz, though those frequencies may vary depending on the country and the carrier. That LTE standard is used not only for mobile Internet access, but for hidden video surveillance too. Such hidden cameras are still very expensive and rare, but they are the most reliable way for hidden video surveillance. That's why we've made our best to create an LTE  cell phone jammer that is compatible with all the previous mobile generation and standards.

Many people may be in doubt that is there any danger on cell phone jammer to our health Because they play a variety of frequencies, and are these frequencies dangerous for us? Now more and more people are buying mobile phone placement machines and any other blocking devices. From this point of view, in fact, already know the answer, because the masses of the eyes are discerning. We can fully understand them because we know how important it is to protect your privacy, and because most governments are doing their best to spy on everyone, we have no choice but to buy these jammers and try to protect our privacy.

But we have to technically illustrate this point. On health issues, cell phone jammer has passed all the safety and health tests, thanks to this fact, you can rest assured to buy and use. If you remember, the same health problems were worrisome when the phone was first introduced into society. But after testing, the result is the same - no harm.

Also, from the working principle of the jammer, you should remember that the gsm jammers are transmitting the same frequency band as the phone to interfere with the normal work of the phone, that is, the jammers for us are similar to the phone for us. And today, are there any equipments we stay with together longerthan the phone itself ? What kind of equipment is more popular than mobile phones? So, if we are talking about the harm of mobile jammers - they are the same as the phone itself. With Wi-Fi signal blocking the same thing, are they just as a Wi-Fi hotspot, are these hot spots dangerous? Another point you should know that radio signals and light, sound waves and gravity follow the same inverse law, that is, the distance is doubled, the energy is reduced to a quarter. In other words, the signal strength is attenuated with increasing distance. The most interesting fact is that people are concerned that GPS / GLONASS interference devices are harmful, but they do not even know that they are surrounded by the signals of these positioning systems every day.

Then we would like to remind you again here that it is very important to know what type of frequency you want to play. You can find any type of information about the phone blocker and other blocking devices on the Internet and on special websites. One thing is for sure - this technology will not stop developing.

Many people's privacy are now undermined, and hackers or spy organizations (such as the National Security Agency) can easily access our privacy information, and this happens more than one thing. That's why we decided to give you some advice on how to protect your privacy through a variety of jamming devices without hurting others. First of all, we want you to remember that the signal blocker is a weapon that may be bad in the wrong hands, so be careful.

There are many dangerous devices available for tracking, eavesdropping, and can collect many specific data such as login / password, email and people you know - your smartphone. Modern smartphones are dangerous regardless of the manufacturer and the mobile operating system. The main reason is that the device has all of your data. Your personal information, your current coordinates, your friends, private photos and so on.

Hackers are trying to find new ways to snoop on your smartphone. Because the quickest access to large amounts of data is the easiest and cheapest way. The most dangerous thing here is that you do not know what to do to be able to protect your privacy. Hackers are too hard to prevent, no such anti-virus, firewall or encryption method, will be able to protect your data without killing the gadget.

In addition, all of these encryption programs are quite complex, so most people will be confused at all. There are two decent choices that may hide your information. The first is GSM jammers, which will hide you in a very short time, but you will not be able to make or receive calls. The second is to avoid storing private and valuable data on portable gadgets, smartphones, or tablets. Both will cut the functionality of your device, but it will definitely prevent data leakage.

The second thing you should worry about is the wireless network. They are unreliable, hackers use this. Most smartphone users connect free Wi-Fi hot spots in public places, not only online, but also install updates and handle mobile banking information. This is very dangerous, your privacy information is likely to leak because of this.At this time,the WiFi jammer can help you.

Many people unknowingly place private information at risk. They are shared with their smartphones via social networks and transmitted over the Internet with unencrypted protocols. That's why we always tell the reader that the security of their private information is their concern if they do not at least do that nobody can protect it. Protect your information, it's easy, but very important!