Category: Tag Drive

GPS technology in vehicles may be interfered with by so-called jammers or completely blocked. In the short or long term, the electromagnetic waves will overlap the signal from the transmitter, making them unusable. For this, the mobile jammer must simply be located near the GPS device. The use of signal jammer equipment is generally prohibited in the United States, but this interference must be distinguished from more complex GPS spoofing, which not only interferes with transmission, but also the transmission of fully manipulated data.

The influence of magnetic field strength on test signal jammer

I believe many people are unfamiliar with the test signal jammer. This is a kind of equipment that has become popular in major examination rooms in recent years. It can effectively prevent candidates from cheating by using electronic signals. It has been widely used now In the university and middle school exams in major schools. Especially in the upcoming college entrance examination season, major schools have to re-purchase a batch of more professional machines and equipment with stronger shielding effect to ensure the normal order of the examination room and maintain the fairness of the examination. However, what we are going to talk about today is , Regarding the influence of magnetic field strength on the test signal shielding device.

Camouflage handheld phone jammer

As we all know, the effective range of the test signal jammer is generally about 0 to 50 meters in radius. According to different models of different manufacturers, there will be differences in specifics. However, the strength of the magnetic field will actually affect the effective range of the test signal jammer. Yes, because it relies on the magnetic field to isolate the electronic signal, so in specific use, pay special attention to whether there is a base station within 500 meters of the examination room. If it is 500 meters away, it will generally not cause any impact. If it is within 500 meters, it should be judged according to the specific distance. So the best way is to actually put it into use, and then judge how many units need to be purchased based on the actual results. For those who want a stronger shielding effect and a larger range of machinery and equipment, you can contact Beijing Shenzhou Mingda for the price of signal jammers. This is a professional manufacturer and has many years of experience in research and development of test signal jammers. It has been developed for many years. Deeply recognized and trusted by customers, friends who want to eliminate electronic signal cheating in the examination room are welcome to contact and cooperate.

Which network frequency bands can the 4g signal jammer shield?

There are some differences in the working principles of different jamming device. In some special cases, people want to know how to avoid jammers in mobile phones. At this time, we need to understand all aspects and be able to constantly understand these frequency bands. It is the most important. Many jammers basically have these relatively fixed frequency bands in the process of working. We can understand them correctly, and then keep our signal within the range of this frequency band. Then for you, it is natural Can be avoided.

gps jammer

How do mobile phones avoid the principle of jammers? When you want to avoid jammers, everyone should really understand the specific principles. The principles of different devices will have certain differences, so we should do well in all aspects. The understanding and correct understanding of the specific principles can then bring us more development, so we all need to pay attention to this aspect in time when we are doing it. This is our better way to avoid problems. Prospects.

When you want to know how to avoid jammers on mobile phones, you can really use the new device during the whole use process. When many new device identities are in use, because the specific frequency bands of these signals are not within the overall control range at all, we need to truly understand each situation during the application process. Make the choice of equipment carefully so that it will be better for the whole process, so you need to have a complete understanding of the process.

If you really want to know how to avoid jammers on mobile phones, there is one of the most direct and effective methods, and then you can directly damage the device while others are not paying attention. When you can do a good job of destroying the device, otherwise the mobile phone will not be affected, but in this process, you should still pay attention to more aspects, and be able to really understand clearly under this situation . If you can turn off the power secretly, or destroy the total power supply, you can prevent the jammer from working and ensure that we can use the phone normally. In the process of choosing a method, you need to truly combine your own actual situation, and then choose a practical method.

To prevent students from playing with mobile phones

Nowadays, more and more students have smart phones. In order to prevent students from playing mobile phones at school to affect their studies, especially the phenomenon of playing mobile phones after going to bed at night and turning off the lights, Xin’anjiang Middle School recently installed several mobile phone signal jammer. This move caused objections from some students.

Student: I’m not used to the cell phone signal

On November 8, a netizen broke the news on Baidu Tieba of Xin’anjiang Middle School, saying that “I heard that mobile phone shielding devices are harmful to the body.” In the following days, there were several more posts about the school blocker, which triggered discussions among many netizens. Another netizen made up a poem: “I saw high-voltage lines during the day, high-tension lines at night, and high-tension lines every day…”, and nearly 30 comments were posted.

gps wifi cell phone jammers

On November 12, the reporter came to a certain class of the third year of the school and asked 4 boys, 3 of whom used smart phones and 1 used ordinary mobile phones. A boy told reporters that about half of the classmates in the class brought mobile phones, mainly for making calls. Nowadays, mobile phones have many functions. They also use mobile phones to watch TV shows, read news, read novels, and chat with friends. He complained to reporters: “The mobile phone has no signal and life is less interesting. I am really not used to it.”

In another class, the reporter learned that in addition to contacting family members when using mobile phones at school, girls also use their phones to shop on Taobao, check Weibo, and play WeChat. Some girls also use their smartphones to play with foreign social software such as Twitter, Facebook, and Instagram.

School: Schools should be responsible for the management of students, and mobile phones should be used reasonably at school

Principal Lai Zhonglin of Xin’anjiang Middle School said frankly that it is very common for students to bring mobile phones. Most of the mobile phones used by students are smart phones. They can play games, watch movies, go shopping, make friends and chat… The school clearly requires students to use mobile phones reasonably and is strictly prohibited in teaching. However, some students have poor self-control ability, especially after going to bed at night and turning off the lights, there are still students playing with mobile phones until late at night, which seriously affects the next day’s study, so that they start to doze off early the next day and lack sleep for a long time It will also affect your health.

In order to prevent students from using mobile phones at school to affect their studies, especially the phenomenon of using mobile phones after going to bed at night and turning off the lights, Xin’anjiang Middle School installed several mobile phone shielding devices. Lai Zhonglin said that the jamming device is mainly near the bedroom, and the activation time is a certain period of time, not all day, and the use time during the exam is slightly longer than usual. The shielding devices installed in the school are in compliance with the standards for the use of the college entrance examination and have safety guarantees. At the same time, the school also visited surrounding residents and units and asked the mobile company. The results showed that the shielding device did not affect the normal life of the surrounding area.

In response to the students’ messages in Tieba, School Lai also replied: Student mobile phone management is a problem that every school will encounter. The school hopes to get the attention and attention of relevant social departments and provide technical guidance. As a school, it should assume the responsibility of managing students. Students are asked to concentrate on their studies in school. Parents are also expected to understand, cooperate and support the school’s mobile phone management. Moreover, the school has a school messaging system that can meet the needs of students and parents. Contact demand.

Surrounding residents: no impact on normal life

On November 12, the reporter randomly interviewed several residents near Xin’anjiang Middle School. An employee of a company near the back door of the school said that the installation of the shielding device in the school did not affect the company’s employees’ mobile phone use and normal life. Mr. Wang, the owner of another small shop, also said that his mobile phone signal was not affected.

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!

What are the ways to shield GPS signals?

Whether you are locating business assets or monitoring the location of your loved ones, GPS locators have become undeniably reliable. However, users increasingly rely on these things, which makes hackers even more reason to distort the system. Obviously, any potential interference with how these devices work can greatly damage their performance.

GPS monitoring equipment is mainly used for real-time location tracking, used to monitor property and relatives. Over the years, monitoring equipment has been used to complete legal tasks, including rescue tasks, monitoring sex offenders or monitoring parole offenders. In addition, it can also be used to locate and protect convoys. This equipment can help fleet managers protect their vehicles and ensure rapid recovery in the event of their property being stolen, giving the company an opportunity to obtain lower insurance premiums. In fact, these tracking devices have been used to check the whereabouts of spouses in order to understand potential cheating.

For these reasons, people of course need to interfere with GPS to ensure that their devices always work. However, the irony is that GPS monitoring equipment can potentially compromise personal safety, just as it causes safety. If terrorists can obtain important location information of government property, or even if the wife tries to catch her cheating husband, GPS signals can also be useful to disturb things.

gps signal jammer for car

GPS signal jamming equipment and other signal jammer

Different methods of confounding or interrupting GPS signals will also depend on the type of surveillance equipment used. The most direct way to avoid being stalked is to destroy the GPS device and ensure that it does not rejuvenate. But if the intention is to tamper with it secretly without knowing the installer, it is easy to obstruct or weaken the transmission of the tracking device by using these instruments:

1.Metal shield

This is a cheaper option. Just encapsulate the tracking device with any metal covering (such as brass net or lead camera film protective film). The thieves allegedly used refrigerated trucks to transport vehicles equipped with GPS tracking devices to avoid being tracked.

2. GPS jammer

GPS jammer is primarily sold online. Inserting it into the 12v adapter in the vehicle can now damage GPS radio signals within a certain range.

3. Mobile phone signal jammer

This device is a mobile phone scrambler, which means it can avoid mobile phone use. If an automatic tracking device is used, this scrambler will prevent the wireless tracking device from sending real-time location updates.

Take advantage of the use of portable phone Bluetooth WiFi 3G 4G mobile phone Jammer

Click on the hidden device style Bluetooth WiFi 3G 4G phone jammer. The interference range of the handset is up to 20m with CDMA / GSM: 851-960MHz, DCS / PCS: 1805-1990MHz, 3G: 2110 – 2170MHz, 4G LTE: 725-770MHz, 4G Wimax: 2345-2400MHz or 2620-2690MHz and WiFi: Full 2400-2500 MHz frequency band based on standard requirements.

Advanced hidden style wifi jammer Bluetooth 3G 4G mobile phone Jammer with selectable buttons

cheap signal jammers

Life is like a long journey since there is no destination in our life. Life is also very fickle, since anything can happen in our life. We can be successful or defeated at any time. We may like it a lot at first and may not like it later. Take the mobile phone handheld locker, for example if you need such a lock kit to avoid unnecessary calls to a mobile phone, you will like it very much and need it directly, of course if you need to use your mobile phones normally, you will activate it . right away, it’s the choice. Actually, there is nothing good or bad about everything in the world, it all depends on your mind and how to use them. From now on, the legal use of mobile phone signal blocker starts from here www.jammer-mart.com and you will get the best interference kit with best design and function.

With a high-quality and well-designed cooling system with integrated cooling fans, the device can operate 24/7 without continuous interruptions. It is built with a robust shockproof and portable casing for easy use and increased durability. Each band of the portable signal blocker is controlled separately, so you can block the frequency you need, which will improve the blocking efficiency in case of possible uncertain factor such as distance, obstacles between them and the like.

Come on, man, you should try this high-tech product now!

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.

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!

Handy blocker keeps your location secret

If you have never used a jammer before, it is important to emphasize that this device should cut the signals from GPS devices. The gps signal jammer perfectly blocks the transmission of GPS signals and gps so that gps devices cannot recognize your specific location.

The type and model of GPS jammer have different technical specifications, so we recommend that you carefully study technical functions before buying. Each cell phone jammer has a different blocking radius, which is positive from 5 to 100 meters. Nearby GPS devices will work fine. Furthermore, GPS blockers are equipped with a rechargeable battery and when fully charged you can use it for a long time Use time without a stop.

adjustable gps jamming device

Also gps jammer can have different design, so you can choose portable or handheld gps jammer and desktop. To order, you have to decide whether you want to use it in one place or you will use it in different places, you can protect it to take all the time, then you have to buy portable GPS jammer. With the small size and light weight, you can take portable GPS blocker anywhere you go, which is very practical. What is more there is GPS signal blocker that can block several types of signals. Imagine a jammer can block gps signals, signals from mobile phones CDMA / GSM (860-970MHz), DCS / PHS (1805-1930MHz) and 3G signals (2110-2170MH).

www.jammer-mart.com is a leading provider of jamming products.We offer you a wide range of best quality jamming.And our customer service is always ready to help and answer all your questions.

Legally buy GSM blockers, WiFi and GPS jammers and other jammers in Germany?

The hint that this text does not constitute legal advice already gives a hint: The topic of GSM jamming, or cell phone blockers, is a hot topic in Germany. And that’s just as well.

The damage that can result from improper use is enormous, possibly even fatal.

cell phone jammer or GSM jammer is devices of all sizes and capabilities. At the push of a button, they can send out a signal on several frequencies,
that serves as an interference signal and overlays all other signals from devices such as cell phones, tablets, wifi cameras or GPS direction finders so that a function is impossible.

Imagine you are talking to a friend in a relaxed atmosphere and someone is sitting at the next table reading a newspaper article with a megaphone.
In this example, your table neighbor is – you guessed it – the misery.

With a cell phone blocker in a handy size, you can not only completely block the reception of any cell phone within a radius of 10 meters, but of course also ensure that
No more calls, SMS or email can be sent from this cell phone. From now on, at the push of a button!

In some high-security areas where industrial espionage is feared, e.g. B. in manufacturing plants or laboratories of large companies, such devices are used to
to prevent spying on company secrets through cell phone recordings or camouflaged radio cameras. Authorities may give permission for this, and without one
the operation of a cell phone blocker or wifi jammer is strictly forbidden in Germany. But why?

Risks and side effects

The answer is obvious. A cell phone blocker that is carried in the vest pocket may block a vital emergency call that is being made by a cell phone near you
should be.

Depending on the size and performance of this jammer, the phone and data connections of smartphones or cell phones can be impaired within a radius of up to 100 meters.

The radius, structure and architecture in a city can hardly be assessed, as are the risks.

Advantages?

Yes, they actually exist. As mentioned above, companies worldwide use gsm jammer to protect themselves from industrial espionage. Incidentally, exams in some countries
completely legal GSM jammer used to prevent high-tech undercut in tests. A “button” in the ear and a live video transmission to a person outside the examination room
would turn some tricky tasks into child’s play.

gsm frequency jammer

Authorities also use GSM or cell phone blockers to prevent suspicious people from communicating before access. Imagine the police entering the apartment
of the first suspect and he could quickly warn his cronies in the next house that the police might also be present.

This is completely impossible with a GSM blocker in your jacket pocket. A clear advantage of this technology.

Likewise, in prisons, the approved use of these wifi signal blockers or blockers is common. Smartphones smuggled into prison can help
manage criminal processes directly from the prison cell.

Online purchase of GSM blockers or wifi whines in Germany?

In two circumstances, we are able to legally sell such jammers in Germany:

1. The customer is an authority
2. The customer has a delivery address in other European countries (our delivery will then be made to this address)

Even if a sale to customers outside of Germany is allowed, we expressly point out that the use can have far-reaching consequences!