2020 Decemberpage 4

What is a GPS jammer? Are GPS jammers generally used in cars?

The GPS signal jamming system is designed to suppress the signal of the global satellite navigation GPS system in the range of 1500-1600MHz. The jammer makes it impossible for GPS satellites to monitor the location of cars and all vehicles through GPS, and the GPS jammer device will not interfere with mobile phones and other devices. Gps jammers can range from 5 to 15 meters, which is sufficient for cars and trucks and buses, because the tracker is usually installed in the cab inside the car. After starting the connection through the car cigarette lighter, the device immediately starts to work and generates radio noise (interference) in the range of 1500-1600 MHz (L1/L2) within a 15-meter radius.

handheld gps signal jammer

GPS equipment will need a phone card. The current location information calculated by the GPS module is uploaded from the communication base station to the positioning server through this card for users to query, and the jammer uses wireless electromagnetic waves to interfere with the communication between the card and the communication base station to achieve The purpose of GPS location cannot be queried by the user.

Working principle of GPS jammer:

Mainly by releasing radio interference waves, the GPS locator can be invalidated within the designated electromagnetic wave band, forming the same electromagnetic environment as the equipment used to block the signal.

There are two ways to shield GPS signals. First: The direct is to remove the two wires of the GPS host. Second: Go to the electronics market to buy a GPS signal jammer, but you must first distinguish what signal tracking method the GPS on your car uses.

There are only two ways of signal tracking: (1) Cell phone signal. (2) Direct satellite tracking signal.

Generally, most GPS tracking signals use mobile phone signals. GPS jammers have the same interference effect on car navigation. GPS used for car navigation is the same as mobile phone signals. It is easily interfered by electronic devices. The signals are shielded, so that all communication devices in the range lose their signals. However, such equipment also has disadvantages for the users. The signal jammer can only be turned on temporarily, and it is impossible to open it forever. As long as he turns off the jammer, the GPS will have the signal again.

Amazing break-in: Was the WiFi for the home security system disrupted?

CHESTER CO., Pa. (WPVI) – A family from Chester County, Pennsylvania, searches for answers after it is discovered an intruder was inside their home.

The suspect was videotaped by his ring doorbell surveillance camera earlier this year. Strangely enough, her surveillance camera caught him coming out but not going inside.

And their home security system never registered that the man was inside.

The case took investigators and security experts by surprise, and you may have asked how secure your camera system is.

The man in question appears to be trying to disassemble the ring camera. He looks at it from different angles and then withdraws to Nemo Perera’s house.

The family observed this while eating out one February evening.

“My heart sank and unfortunately we made the mistake of showing our four young children the video so they would panic. So my wife called the police and we ran home,” said Perera.

What’s worrying is that the Pereras don’t know how the intruder got into their house.

The family has two Wi-Fi networks. One controls his ADT security system, which was partially hard-wired, and the other controls his doorbell system.

However, the system did not detect the intruder inside, nor did ADT motion sensors detect any activity inside.

Perera said, “So we have the ring logs and they show that we left the house at 7:11 pm and the ring stopped working from that point on, with the exception of this one picture that was taken at 7:45 pm.”

Security expert Dave Pearson owns 215 Secure. He has since been hired to improve the Perera’s security system.

“Personally, I think someone turned off the Wi-Fi system. If they know the password to get on the Wi-Fi, that’s a pretty easy way to get in,” Pearson said.

But Perera says he didn’t have standard Wi-Fi passwords and accessing his Wi-Fi networks would have been difficult. He says other security experts told him that he may have been a victim of wireless interference.

There, criminals use an illegal device to send out an explosion of synchronized radio waves that cripple Wi-Fi networks. Despite the hefty fines for owning one, they are easy to find on the internet for a few dollars.

Pearson says they are a concern

“Wireless signal jammer is a problem and more of a problem these days. It was certainly a problem for Nemo,” he said.

high power phone gps jammers

According to Perera, ADT gave few answers about what happened.

“So we asked our ADT people to explain what was going on and they couldn’t explain it. They’re trying to run it up the flagpole,” Perera said.

Even more amazing, the Pereras say they haven’t found anything stolen.

They suspect that Nemo Perera’s hard drive was copied for business reasons, but security experts say there is no evidence.

Police say they have no suspects or leads, and the Pereras hope someone will spot the intruder and help investigators.

Perera says, “We can’t imagine why. It’s very worrying. To find out what your intention is, it would be very important because I think it mystifies the police too. They wonder why they did that too to have.”

ADT released a statement to Action News stating:

“We investigated Mr. Perera’s claim and approached him directly. We found no evidence of any attempted hacking or jamming attempt.”

Application of car jammer in border defense and military

Car jammer protects military and VIP convoys from being attacked by remotely controlled improvised explosive devices (RCIED) buried by terrorists in advance, and can effectively prevent terrorists from tracking the convoy via GPS.

It is used for EOD. Before EOD, it is necessary to effectively shield the wireless communication signal around the bomb to prevent terrorists from detonating the bomb through the remote control wireless device during the EOD process and avoid huge casualties.

It is used for the police to interfere with common communication frequencies in the process of rounding up criminals to prevent criminal gangs or police from leaking secrets through wireless devices and making rounds invalid. At the same time, it can also prevent criminals from remotely controlling bombs at key entrances of the building, allowing the police to quickly enter the building for round-up and avoid casualties.

When border defense and military patrols, prevent terrorists from being attacked by remote improvised explosive devices buried along the way.

Used in military protection areas, government buildings and other important places, shielding wireless signals can effectively prevent terrorists from conducting fixed-point blasting through remote-controlled bombs. At the same time, criminals who have been hidden in the military protection zone cannot communicate wirelessly with the outside world and leak secrets.

vehicle portable gps jammer anti-tracking

The wireless signal jammer adopts the American original Pelican military standard tow box, which is dustproof, shockproof and drop-proof! It uses external AC power supply, can also be powered by a built-in battery, and also supports external battery box power supply or generator power supply, the power supply mode is flexible!

The equipment adopts a modular design, and each component can be directly plugged in and replaced. Among them, five high-power shielding modules, the frequency can be customized and combined at will

The equipment control method is flexible and diverse, which can be directly operated and controlled on the machine, or controlled by an external wire control box.

What preparations should be made to establish a mobile phone signal shielding system

Clarify the scope of the shielded area, whether it is a key area (or inside a building) in the prison area or the entire enclosed compound;

Clarify the expected planning and effects of the signal jammer project, including the planning funds for the entire mobile phone shielding project, whether it is generally only to install the shield to achieve the shielding effect or to conduct scientific and intelligent centralized control shielding;

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Prepare a plan of the unit and mark the name, layout, size, and floor height of each building in the prison area. At the same time, the surrounding environment of the prison should also be marked, especially the location of office areas, residential houses or social factories and enterprises within a few hundred meters of the fence;

Divide key shielded areas, non-key shielded areas and areas that do not need to be shielded;

Understand the distribution of base stations around the prison (location and communication company);

Be prepared for on-site surveys and tests by distributors or manufacturers of mobile phone shielding system construction projects.

Analysis of Market Demand of Prison Mobile Phone Signal Shielding Project

With the continuous development and popularization of mobile communication tools such as mobile phones, and the continuous improvement of the technical level of personal mobile communication methods, especially after the promotion and application of 3G, 4G, and 5G technologies, it will be used for prisons, labor camps, detention centers, drug rehabilitation centers, etc. The negative effects of similar areas are becoming more and more prominent. In prisons, detention centers and other supervision places, mobile communication tools such as mobile phones are explicitly prohibited, not only for prisoners, but also for supervisors. Once the mobile phone is brought into the prison and put into use, it will bring great harm to the management, safety and development of the prison. Some prisoners use illegally smuggled mobile phones to make calls, send text messages, obtain information, threaten witnesses, and even form gangs and organize escapes. Because of this, the installation of cell phone signal jammer in prisons and other prison places is imminent. Degree!

22 Antennas all Signal Jammers

What factors should be considered in establishing a mobile phone signal shielding system

Due to the influence of the base station, the distance between each base station and the prison is different. Generally, it is recommended that there is no base station within two to three hundred meters near the prison area where the mobile phone signal shielding system is installed. Strong influence!

The scale, number of buildings, structure, size, floor height, etc. of each prison are different. The distribution direction, power, and terrain of mobile phone base stations around each prison are different. The strength of mobile phone signals transmitted from remote base stations is also different. There is no difference. How to arrange the points in each prison needs to be designed according to the actual situation!

Even in the same environment, the base station signal is affected by wind disturbance, air humidity, etc., which will cause fluctuations in signal field strength. In addition, there are differences in field strength between indoor and outdoor spaces, and the ground, building structure, materials and metal objects affect the mobile phone. Shielding the signal causes very complex adverse effects.

Cell phone signal shielding systems are installed in prisons. Most shielding terminals are installed in relatively high or slightly hidden locations, and are not detected by ordinary people, but they may not prevent man-made damage. The influence of future human factors must be considered, including prisons. Guilty (also resisted by prison guards) artificially damaging or cutting off the power supply to the jammer,

With the accumulation of working hours, electronic products such as mobile phone signal jammers will also have normal wear and tear. Several shielding points installed in the prison cannot be guaranteed to operate 100% stably every day. As a manager, you should have a set The simple and convenient centralized control system can detect the man-made damage or normal loss of the shielding point in time, and arrange the maintenance and inspection quickly.

Benefits of installing shields in dormitory areas and examination rooms

In recent years, due to the widespread popularity of mobile communication tools such as mobile phones, cheating using mobile communication tools such as mobile phones has become a “secret weapon” for some candidates to improve their test scores. These candidates do not seek hard work on weekdays, but want to use them when taking exams. Some illegal means, or organizations and individuals who listen to some illegal test-disclosure vendors, or provide answers for profit, want to use their mobile phones as answer receiving tools or transmission tools to obtain ideal test scores through cheating, which seriously damages The fairness and seriousness of the exam! It is a great harm to most other students who usually study hard and learn from the truth!

In order to strictly discipline the examination room and ensure fairness and justice for each reference person, installing a mobile phone shielding network intelligent management system or a wireless signal jammer device is one of the most effective ways to prevent candidates from cheating through mobile phones and other communication tools.

desktop mobile phone blocker

According to some school administrators, students now carry a lot of mobile phones. According to the observation and understanding of school administrators in recent years, students use mobile phones as normal applications, but most of them use mobile phones to access the Internet and chat. , Playing games, reading novels, chatting about love, and even more often contacting some idle people in society, which has brought great harm to the education of the school and the growth of students! After the students are checked by the school leaders during the late schedule, it is more difficult to be restrained, managed, and discovered by playing with their mobile phones under the covers.

The school generally recommends that the mobile phone signal shielding system be installed in the dormitory area should only be turned on within two hours after the lights are turned off. The purpose is to enable our students to learn to live and develop good and healthy living habits! Go to bed early and get up early, so that you will not be drowsy due to lack of sleep the next day, unable to concentrate on studying and attending classes.

Signal interference in teaching area during teaching management

With the increasing popularity of mobile phones, the status quo of students using mobile phones has even reached a large number of elementary school students, and the proportion of middle schools and high schools is even greater. At present, although various schools have clearly stipulated that teachers are not allowed to receive and call mobile phones during class, and students are also required to turn off their mobile phones or adjust their mobile phones to vibrate by themselves, but due to students’ self-discipline and self-consciousness, they have been giving schools daily teaching The management brings constant trouble! such as:

There will always be some students who forget to turn their mobile phones to vibrate for some reason, and a sudden call or text message during normal class, especially when some funny and tricky sounds sound, the originally quiet class and normal teaching will be interrupted.

Some students who are unconscious in class have the function of text messaging on their mobile phones. If they don’t want to attend class during class, they don’t need to whisper to the next desk to chat, just send and receive text messages on their phones.

Today’s mobile phones are equipped with Internet access, and students can frequently use their mobile phones to chat, read novels, and play games during class.

The school installs and uses the cell phone signal jammer device intelligent management system to prevent students from using their mobile phones excessively during class. However, when the mobile phone signal is shielded in the classroom, some students will say that the school violates the student’s “right to freedom of communication”. From the standpoint of students who frequently use mobile phones, these views seem reasonable, but if you think about it more seriously, if blocking the mobile phone signal infringes the students’ communication rights, then these students use mobile phones in classrooms or self-study. Have you ever thought that you violated the right of other students to receive education? Have you ever thought about respecting the teacher’s teaching authority? Whether right or freedom, there are only relatives, not absolutes. Any rights or freedoms are based on respect for the rights of others. The laws of our country are also rules based on the interests of most people. This rule protects the rights of most people. If you really want to talk about infringement, it is that a small number of students who use mobile phones freely regardless of occasion infringed on the education rights of most students.

Powerful signal jammer device

Some students or their parents may also suggest that the school has blocked mobile phone signals during class. What if there is something urgent in the family to contact or fail to notify the students themselves? In fact, this question is not difficult to answer. First of all, from the perspective of students, the reason why students use their mobile phones is to make contact with their parents convenient. In fact, students are in school, as long as there is no emergency, they don’t need to be on 24 hours a day. In case of special circumstances, the school, the teacher and the parents will take the initiative to contact. Secondly, from the perspective of parents, just remember that since their children were equipped with mobile phones, there have been a few times so far because of special circumstances. If they had to make a phone call, they would immediately stop learning in class and leave school to deal with it. of?

Moreover, the school has installed the campus mobile phone shielding device intelligent management system. It does not shield students from their mobile phones for all the 24 hours in the school. It only shields students for 40 to 50 minutes in the morning and afternoon classes. Shielding, even the ten-minute break between classes will restore the cell phone signal. The mobile phone jammer intelligent management system has fully considered the humanized shielding of students’ mobile phone signals.

Application place of portable signal jammer

Portable (drag box type) wireless signal jammer, can be used for important leaders/VIP VIP security, individual combat, special police team, EOD team, anti-terrorism unit, anti-drug unit, explosion-proof team, security checkpoint, administrative law enforcement, hostage negotiation, Various applications such as border control and military security forces. It can be used both portable and in-vehicle. When used in vehicles, the vehicle-mounted dedicated antenna can be configured according to customer requirements.

A powerful 4G 5G jammer

Effectively shield all 2G, 3G, 4G, 5G and WIFI signals of China Mobile/Unicom/Telecom;

12 RF modules work independently, 12 channels output, each channel RF power 2-3W;

Especially strengthen the power promotion for 3G, 4G, 5G, and fully ensure that the output power of each channel reaches 2W;

Possess future expansion space for 6G or other wireless frequency bands; more output channels (frequency bands) can support 24 channels;

The exquisite structure design, with invisible handle grooves embedded in the back, is not only convenient for carrying, but also suitable for wall-mounted fixed installation;

Adopt industrial-grade switching power supply, built-in precision voltage regulator circuit, even if the voltage fluctuates greatly, it will not affect the normal operation of the host;

The main body of the jammer adopts a fully enclosed protective shell design, which fully takes into account the problems of waterproof, dustproof and vandalism in special sites;

It is resistant to high temperature environment and can quickly transfer heat to the heat dissipation base (built-in ventilation duct heat dissipation fins) to avoid local heat accumulation;

Professional circulating air duct type heat dissipation base structure, the lower end quickly sucks in natural wind, and the upper end removes heat on both sides, ensuring stable operation of the equipment for 24 hours;

Built-in 4 ultra-quiet fans draw out hot air, and the fan speed can be adjusted; the equipment is completely noise-free during working hours;

Satisfy the requirements of continuous startup and use for many years, stable performance and long service life;

Harmless to human body. Complete product inspection and test reports; passed the electronic product safety test of the Ministry of Public Security;

The product has passed the environmental monitoring center’s electromagnetic radiation safety test;

The product has passed the electromagnetic radiation safety test of the provincial occupational health test center;

The extended interface and networking modes with intelligent networking linkage function include: power carrier + wireless, or: TCP/IP standard network communication;

Meticulously developed high-tech product MDPB-40C jammer

The MDPB-40C mobile phone signal jammer is a high-tech product that our factory adopts foreign advanced technology, aims at the continuous development of communication standards, and is carefully developed according to the actual situation of foreign mobile communications. It can be used in a radius of 10-25 meters (about 50-300 Square meters, the shielding range can be adjusted according to the required location) GSM/ CDMA/ AMPS/DCS/PHS/3G (WCDMA, TD-SCDMA and CDMA2000) and 4G mobile phone signals can be cut off. 2. The 4G wireless signal prevents the mobile phone from making and It can answer, and cannot send or receive text messages, but it will not interfere with the work of other electronic devices, thereby ensuring the safety of the required place. The mobile phone can be used without any damage to the human body after leaving the partition range.

12 Antennas powerful Jammer

Within a certain frequency range, the mobile phone and the base station are connected by radio waves, and data and sound transmission are completed with a certain baud rate and modulation method. The jammer scans from the low end frequency of the forward channel to the high end at a certain speed during operation. This scanning speed can cause garbled interference in the message signal received by the mobile phone, and the mobile phone cannot detect the normal data sent from the base station, so that the mobile phone cannot establish a connection with the base station and achieve the purpose of shielding the mobile phone signal. The mobile phone appears to search the network, no signal, No service system, etc.

For the shielding of the internal area of the building, the distance between the residents (schools) and other public facilities in the area where the building is located should be considered, and the distance and signal strength of the surrounding communication rack base stations should also be referred to, so as not to affect the normal communication of mobile phone signals in the surrounding public facilities. , Our company selects MDPB-25W indoor host product for the shielding in the building to carry out the network shielding of the indoor antenna mode.

MDPB 50A mobile phone signal jammer has a strong shielding effect

MDPB 50A cell phone signal jammer is a high-power mobile phone signal jammer specially developed and produced by adopting international advanced shielding technology to meet market demand. Compared with general signal jammers, MDPB-50A adopts a single channel 5W full power design, which has stronger shielding effect, wider shielding range, and more stable performance. It is suitable for a variety of large-scale secret places, especially prisons, detention centers, and conference rooms. Wait. MDPB-50A can automatically form a shielding magnetic field within the specified range when entering the working state, forcibly disabling mobile phone signals, MDPB-50A can shield mobile phone 2G, 3G, 4G, 5G communication signals and WIFI signals, but It will not interfere with the work of other electronic equipment, thus ensuring the safety of the required place. The mobile phone can be used without any damage to the human body after leaving the partition area, which is convenient and safe.

22 Antennas all Signal Jammers

Based on the principle of mobile phone (radio communication), this product uses broadband scanning technology to cut off the 2G, 3G, 4G, 5G and 2.4G WIIF wireless signal connections of the mobile phone, which manifests itself as a search network, no signal, no service system, etc., making the phone unable to call And answer, and can not send or receive text messages, but will not interfere with the work of other electronic equipment, thereby ensuring the safety of the required place, the mobile phone can be restored to normal use without any damage to the human body.