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.

What are the advantages of wifi signal jammer?

The development of smart phone wireless networks has a great effect on increasing the speed of development. Mobile phones can solve network problems. Mobile phones play a more important role in people’s lives, mobile communications and mobile Internet, and other aspects. Because of this, it causes a lot of problems, especially in the network, children are addicted to the Internet, which is mainly due to the wifi network. As a result, many gradually began to install mobile phone wireless jammer devices to block the network in order to control the children’s online time.

High tech Phone Wifi interceptor

Although wireless networks are convenient for people to access the Internet, the problems caused by this cannot be ignored. This is not only a problem of accessing the network, but also a problem of network security. In order to maintain a good network environment, many places have begun to install this desktop wifi shield to protect the network security in some places and prevent excessive use of the network. This equipment has been widely used in various countries and regions in the world, and is typical of schools, prisons, libraries, reading rooms and gas stations.

It is necessary to use a Wifi blocker. On the one hand, it can ensure the security of the network. On the other hand, it can also control the time that children use the Internet. Don’t indulge in the virtual world. It is very serious to harm their body and mind. In addition, the radiation of the wifi transmitter will affect Human health is not suitable for long-term use, you can turn on the wifi shield to block the wifi signal.

In general, keeping all shields in an open state for many years is not conducive to energy conservation, environmental protection, equipment maintenance, and shortening the service life of equipment (such as factory areas, canteens, warehouses, etc., are unmanned at night, and there is no need to place these locations. The mobile phone jammer runs continuously 24 hours a day).

What is the reason that the signal jammer does not work or the effect is poor?

There are many jammers on the market today, but many customers do not know how to use them, so the jammers often do not work or have poor results. Do you know what is causing this phenomenon? Together with signal interference shielding Let’s find out about the device manufacturer Chengdu Saiyue Communication:

1. You must order a suitable shielding device according to your needs, which is more important

①If you want to block mobile phones, then you have to choose 2G 3G 4G full frequency signal jammer. At this point, you must consider whether you want to add additional functions such as GPS (satellite positioning) or WIFI (wireless Internet access)!

②Choose the right power supply: portable jammers have low power, easy to heat, desktop jammers have high power and good heat dissipation! The shielding range of desktop jammers is longer!

③If you want to block the GPS track, you need to choose a two-in-one jammer (low-cost 2G GPS jammer)) at least! Because when you only use the mini GPS jammer to block the GPS, it will be automatically activated by the built-in SIM card Realize GPRS GSM positioning.

16 Antennas Signal blocker

2. After receiving the portable jammer with battery (desktop jammer without battery), it must be fully charged within 6-10 hours;

3. All antennas must be installed according to the markings (1-1 2-2 3-3 4-4 5-5 6-6 7-7 8-8 or GSM to GSM GPS to GPS…). More importantly, don’t open the shield without installing the antenna!

4. Interference range: position signal strength <= -75dBm. The interference distance will vary according to the signal strength and location. If you are close to the signal base station, the effect of the jammer will be very poor!

Will it affect WIFI when using cell phone signal jammer?

In our lives, we often use cell phone signal jammer, and when we use mobile phone signal jammers, it is inevitable that there will be such a question: Will using mobile phone signal jammers block wifi? Let’s learn about it with Jammer-mart:

buy signal jamming device

The shielding frequency band of mobile phone signal jammer is generally:

CDMA frequency band transmission frequency 869-894MHz

GSM frequency band transmission frequency 925-960MHz

DCS frequency band transmission frequency 1805-1880MHz

PHS frequency band transmission frequency 1900-1990MHz

WIFI transmission frequency 2400-2485MHZ

4G transmit frequency 2300-2390MHZ

4G transmit frequency 2555-2565MHZ

If the jammer contains 2400-2485MHZ, then 2.4G wifi will be shielded. If the jammer contains 5.8G shielding frequency band, it will shield 5.8G wifi frequency band. Generally, the jammer does not include 5.8G Wifi frequency band. Can not shield the 5.8G wifi frequency band.

The technical solution for seamless coverage of cell phone signal jammer in the whole prison area

1. Jammer-mart provides the following shielding solutions for a prison:
1. For the shielding of the internal area of ​​the building, the distance between 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 mobile phone signals in the surrounding public facilities. For normal communication, 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.
2. For the requirement of shielding all in the selected area, our company chooses outdoor large-scale electronic jammer device to cover the inward coverage of the wall cloth to ensure the shielding of mobile phone signals in all areas. At the same time, for the blind spots and leakage points that may exist in the room, use MDPB-5E is installed with patch point.

Powerful signal jammer device

Installation Notes:
(1) On behalf of MDPB-25W indoor host, on behalf of indoor antenna line.
(2) No. 1-3 workshops, two MDPB-25W indoor mainframes are used inside, and indoor dedicated distributed antennas are used to realize shielding in the workshops.
(3) The surface price of No. 4-6 workshops is relatively small, just install one MDPB-25W indoor.
(4) The angle of the indoor distributed antenna is adjustable, which can fully guarantee the realization of the shielding effect.
(5) The interior of the factory building, such as the bathroom, is complicated, and a small amount of small shielding MDPB-5E can be used to make up points in a separate room.

What kind of signal jammer is good for the conference room

As we all know, the conference room is a very serious place and cannot be affected by the external environment. For example, corporate strategy meetings, public institution department meetings, public security, prosecutorial and judicial department meetings and other government department meetings. The progress of the meeting has a great impact. At this time, a mobile phone signal jammer is needed, and a mobile phone signal jammer is arranged in the meeting room to shield the mobile phone signal. The mobile phone has no signal and naturally cannot communicate with the outside world.

Desktop high-power electronic jammer

But how to choose a cell phone signal jammer device, Shenzhou Mingda company provides you with high-quality mobile phone signal shielding solutions:

1. According to the size of the meeting room. For example, the model of shielding device used in a meeting room of 100 square meters and 200 square meters is completely different.

2. According to the usage time of mobile phone signal jammer in the meeting room. According to our conventional understanding, if the frequency and time of use of the signal jammer is 5 hours a week, commercial machines can be used at a relatively low price. If the signal jammer is used for more than 20 hours a week, use an industrial machine, which is relatively expensive.

3. According to the intensity of the field signal used by the signal jammer. In the category of conference rooms, it is not easy to judge. We usually judge based on the absence of signal amplifiers in the office, whether there is an operator base station within 300 meters, and the signal strength of the usual mobile phone. If the mobile phone signal is strong, you need to use it. A slightly larger power shield.

In short, the purpose of the mobile phone signal jammer to shield the mobile phone signal is a comprehensive factor, including the consideration factors listed above.