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Topsignaljammer's Blog (139)

Are the antenna lengths of the signal jammers all the same?

As one of the most important components of the signal jammer, the antenna is the most common for every customer who comes into contact with this product. The most common one is the cylindrical omnidirectional antenna. When customers have the opportunity to see different models, After using various types of signal blocker for different purposes, you will find that in addition to the different appearances of the jamming devices, the antennas configured are also different. In particular, there…

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Added by topsignaljammer on October 25, 2022 at 10:41pm — No Comments

The Practical Use of Signal Jammers in Examination Room in College Entrance Examination

In the college entrance examination, in order to prevent some people in the examination room from carrying some mobile phones or electronic devices to cheat, as well as high-tech cameras and transmission equipment, a small examination room signal jammer will be set up. In every college entrance examination place, there is a signal jammer of this kind of examination room. Once the relevant signal shielding equipment is turned on, although these electronic devices can continue to be used, they… Continue

Added by topsignaljammer on September 27, 2022 at 6:22am — No Comments

Why is the signal jammer in the examination room the best anti-cheating method in the examination room?

In today's information age, with the development of science and technology, inventions such as mobile phones that make life more convenient have been born. After entering the era of high-speed information, mobile phones also have more functions. Many people use it to watch movies and chat. , but there are also some people who plan to use the convenience of mobile phones to cheat in exams. This is a very bad behavior, and it is not recommended. It is also strictly prohibited in the exam. It…

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Added by topsignaljammer on September 26, 2022 at 4:05am — No Comments

5G full-band jammer application

With the progress of society and the rapid development of the communication industry, especially the development of 5G technology, mobile communication has brought great convenience to people's lives, but also has adverse effects on confidential places such as prisons, detention centers, and college entrance examination rooms. increasingly obvious. In the past two years, the incident of candidates cheating through 5G mobile phones has a strong warning effect on the supervision system. If…

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Added by topsignaljammer on September 16, 2022 at 3:20am — No Comments

Why do I need a test room signal jammer during an exam?

Cheating has always existed, especially in our era with technological progress, cheating methods are emerging in an endless stream and becoming more and more sophisticated. Of course, we see more and more anti-cheating work. In addition to the basic inspection by examiners, there are also common Metal detectors, test room signal blocker, etc. Among them, signal shielding can be said to be the most brilliant method, especially in our era with the continuous improvement of electronic equipment,… Continue

Added by topsignaljammer on September 4, 2022 at 11:56pm — No Comments

What are the factors that affect the interference effect of communication jamming vehicles?

For communication jammers to shield wireless signals, the requirements are very strict. Usually signal blocker require 20-6000MHz seamless shielding, including but not limited to remote control bombs, walkie-talkies, mobile phones, drones, etc. In order to ensure that the communication jamming car is foolproof when it is used to shield the wireless signal, it can perfectly complete the task assigned by the superior, and in the case of no casualties, the requirement for the jamming car to shield… Continue

Added by topsignaljammer on August 31, 2022 at 11:40pm — No Comments

The concept and principle of mobile phone signal jammer

There are many types of mobile phone signal jammers, generally hand-held, wearable, portable, wall-mounted and launching desktop. The general maximum interference range of this kind of equipment on the market can reach 500 meters. Except for specific environments, it generally does not need to interfere with such a large range, and the price of such mobile phone GPS Jammer is generally relatively expensive.



World first all-in-one powerful cell phone 5G GPS UHF VHF WIFI… Continue

Added by topsignaljammer on August 12, 2022 at 11:28pm — No Comments

Can the network version of the mobile phone signal jammer be used alone without networking?

Can the network version of the mobile phone signal jammer be used alone without networking? How long is the shielding effective distance? According to the information, the longest is 60 meters, so why do 24×13 lecture halls need 4 sets?



answer:



1. The network version of the mobile phone signal jammer can also be used alone without networking.



The Latest Handheld 24-Wire Mobile Phone Interceptor Full Frequency Band



2. The effective shielding distance… Continue

Added by topsignaljammer on August 11, 2022 at 4:02am — 25 Comments

Can cell phone signal jammers interfere with cell phone 5G signals?

Question: Can a cell phone signal jammer interfere with a cell phone's 5G signal?

Reply:

With the 5G upgrade of communication technology, many customers are asking, can the current cell phone blocker interfere with the 5G signal of the mobile phone?

World first all-in-one powerful cell phone 5G GPS UHF VHF WIFI jammer

The answer is that it can definitely interfere with the 5G signal.

The 5G signal frequency ranges of the three major operators are: China…

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Added by topsignaljammer on August 9, 2022 at 11:28pm — No Comments

How to carry out daily maintenance of police jamming vehicles

In order to allow the police jammer to complete the task successfully, how should the daily maintenance be carried out, mainly from the following aspects



1. Roof antenna



The antennas of police jamming vehicles are generally installed on the roof, and the lodging of the antennas is controlled by the personnel inside the vehicles. The antennas are raised when performing tasks, and the antennas are lowered after the tasks are completed. When maintaining the roof antenna, pay… Continue

Added by topsignaljammer on August 4, 2022 at 4:58am — No Comments

Conference room signal jammers should choose built-in antennas

In order not to be disturbed by other factors during the meeting and to prevent the content of the meeting from being leaked, it is a correct choice to use a conference room signal shielding device.

The conference room signal jammers suitable for use in the conference room are mainly divided into built-in antennas and external antennas on the market. So whether the conference room signal jammers choose built-in antennas or external antennas.

For smaller conference rooms, you…

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Added by topsignaljammer on July 25, 2022 at 12:00am — No Comments

What happens to a cell phone jammer if the RF module and antenna don't match

As we all know, the mobile phone jammer is composed of many radio frequency modules of different frequencies, and the frequencies between these radio frequency modules and the antenna must be in one-to-one correspondence, so why should there be a one-to-one correspondence? If not, what will be the consequences? .

The radio frequency module of the mobile phone jammer is divided according to the signal frequency used by the mobile phone. The frequency ranges from 800M to 6G. The…

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Added by topsignaljammer on July 21, 2022 at 11:24pm — No Comments

What happens to a cell phone jammer if the RF module and antenna don't match

As we all know, the mobile phone jammer is composed of many radio frequency modules of different frequencies, and the frequencies between these radio frequency modules and the antenna must be in one-to-one correspondence, so why should there be a one-to-one correspondence? If not, what will be the consequences? .

The radio frequency module of the mobile phone jammer is divided according to the signal frequency used by the mobile phone. The frequency ranges from 800M to 6G. The…

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Added by topsignaljammer on July 21, 2022 at 11:20pm — No Comments

How many cell phone signal blockers are needed to completely block the signal of a 200 square meter conference room

The area of ​​the conference room is 200 square meters, and the length and width are 20 meters * 10 meters. Some customers ask how many mobile phone jammers need to be equipped in such a conference room, and what is the approximate price of the mobile phone signal jammer? Will it be over budget?



Portable 16 Antenna Hidden Cell Phone Jammer 4G/3G/2G +WiFi2.4G/5G+ GPSL1-L5 +UHF/VHF



The conference room space of 200 square meters is not too big or too small. According to the… Continue

Added by topsignaljammer on July 4, 2022 at 11:15pm — No Comments

Does the convoy escort only need the mobile phone blocker to block the mobile phone signal?

In a project where a customer consults a fleet escort, from the perspective of saving project investment costs, is it only necessary to configure a mobile phone signal jammer for shielding mobile phone signals?

First of all, what is the purpose of the project? The importance and the stakes in this, and who is the main and who is the secondary one, is clear. When guarding the fleet, what needs to be guarded against is the remote control of explosive devices along the road. If only a…

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Added by topsignaljammer on June 30, 2022 at 12:00am — No Comments

Can the mobile phone signal blocker of the drag box type block while dragging?

The mobile phone signal jammer, which is often referred to as a portable mobile phone signal jammer, is a military standard tow box of American Pelican as the installation carrier of the mobile phone signal jammer. This appearance structure is convenient and portable, just like It is very convenient and quick to drag the mobile phone signal jammer like dragging a suitcase.



Then the question came, and the customer asked us: Can the mobile phone signal jammer of the drag box type be… Continue

Added by topsignaljammer on June 27, 2022 at 3:13am — No Comments

About the Principles of Information Technology

Information technology generally includes two categories: information processing technology and information transmission technology.



Information is an abstract concept. The specific forms of information are: language, text symbols, music, graphics, images and data. The physical signals representing sounds and images are converted into electrical signals through sensors, which become the objects of our processing, and people obtain information from these signals.



The task… Continue

Added by topsignaljammer on June 18, 2022 at 2:59am — No Comments

What are the factors that detail the effect of a jammer blocker? how to deal with it

1. Due to the difference in the power and number of channels of the signal towers such as China Mobile, China Unicom, and China Netcom, the distance between the signal tower and the prison, and the size of other nearby buildings, terrain, and landforms, the signals in the prison area are also different.



2. Because the scale, building structure, local cell phone signal tower direction, power, terrain and other factors of each prison are different, the cell phone signal strength,… Continue

Added by topsignaljammer on June 1, 2022 at 3:17am — No Comments

Have you remembered these shielding principles of signal jammers?

Many people know that cell phone jammer can block cell phone signals, but do you know what the shielding principle of cell phone signal jammers is? Let’s learn together:



The mobile phone jammer scans from the low-end frequency of the forward channel to the high-end at a certain speed during the working process. This scanning speed can cause garbled interference in the received message signal of the mobile phone, so that the mobile phone cannot detect the normal microwave signal data… Continue

Added by topsignaljammer on May 23, 2022 at 12:08am — No Comments

Have you remembered these shielding principles of signal jammers?

Many people know that cell phone jammer can block cell phone signals, but do you know what the shielding principle of cell phone signal jammers is? Let’s learn together:



The mobile phone jammer scans from the low-end frequency of the forward channel to the high-end at a certain speed during the working process. This scanning speed can cause garbled interference in the received message signal of the mobile phone, so that the mobile phone cannot detect the normal microwave signal data… Continue

Added by topsignaljammer on May 23, 2022 at 12:08am — No Comments

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