Cell Phone Jammers

The advent of mobile phones has brought convenience to our lives and shortened the communication between people. It is also possible to swipe the transportation card, and to pay for things and eat with the mobile phone, and the mobile phone becomes inseparable. However, everything has advantages and disadvantages. While mobile phones bring convenience, there are also many problems. For example, mobile phones are not allowed in the examination room, and prison detention centers will also implement control over mobile phones.

In important places such as examination rooms and prisons, in order to prevent people from carrying mobile phones, cell phone jammer are used to shield the mobile phone signal. If the mobile phone has no signal, it will naturally not communicate with the outside world. We have all kinds of large and small exams in our lives, such as the high school entrance examination and the college entrance examination and the fourth and sixth grade exams. They are all very important exams in life. In order to prevent candidates from cheating on mobile phones and ensure fairness and justice in the exams, mobile phones are required. Jammers are used to shield cell phone signals.

For the prison. The detention center and the troops have very strict control over mobile phones. Prisons and detention centers are equipped with cell phone signal jammers to prevent prisoners from communicating with the outside world and prevent all actions that are detrimental to society. Places such as troops and important military sites are classified as confidential areas of the country. These areas can block cell phone signals to prevent leaks and prevent the loss of important information.

There are also some party and government agencies, which are also important units that need to prevent leaks. When party and government agencies and companies are in a meeting, if someone uses mobile phones at will, it will affect the progress of the meeting. Therefore, in order to make the participants more concentrated, in-depth meetings and meetings It is necessary to turn on the cell phone jammer at the time!

In addition to the places mentioned above, there are also some places where the use of mobile phones is prohibited, such as gas stations. It is very dangerous to make a phone call at a gas station. In severe cases, it will cause an explosion. Therefore, install a mobile phone signal jammer at the gas station to shield the mobile phone. The signal is very necessary.

How to choose a mobile phone jammer:

The selection of a cell phone signal jammer is mainly through three dimensions: according to the type of signal to be shielded, the power level, and the appearance.

The shielding device is mainly used in various examination rooms, courts, detention centers, conference centers (rooms), government, military and other places where mobile phones are prohibited from entering. So how should you choose a suitable cell phone blocker according to your needs? From the manufacturer’s point of view, if you choose improperly, the installation will have no effect, it will easily cause the product to be returned or exchanged, waste time and waste freight, topsignaljammer Teach you how to choose a phone jammer that suits your needs.

First, the shielded signals can be divided into wireless signals transmitted by mobile communication base stations, Wi-Fi, etc., in addition to 2.4GWIFI, 5.8GWIFI, VHF, UHF and other frequency bands. This kind of frequency band can be combined according to different needs, and can form different kinds of frequency blocker. Therefore, you must first understand the signal you want to shield. The mobile phone signals that are normally shielded are 2G, 3G, 4G, 5G and 2.4G, but 5g cell phone signal jammers that can shield 5g signals are already the mainstream of purchase.

Second, the power of the phone signal jammer: generally divided into low power, medium power, and high power. Low power: total power 3W-80W. Medium power: total power 80W-160W, high power: total power 160W-800W. Except for special occasions, it is generally not recommended to use high-power signal jammers, which will seriously interfere with the base station signal transmission and also have a certain degree of radiation to the human body. For standardized examination rooms and conference rooms, it is recommended to use low power. Even if a low power can not achieve the effect in some places, you can choose multiple cellular layouts. This effect is better than the effect of using a single medium or high power, and the radiation is not that big.

Third, the appearance is not particularly important compared to the shield signal, but the structure of the installation is different. From the appearance, mobile phone jammers can be divided into external antennas and internal antennas. The external antennas extend outward due to the external antennas. The external antennas are more stable because of the extended antennas. In addition to the external power adapter of the antenna, the external antenna of the machine is also external, so compared with the built-in antenna, it occupies a larger space. Generally speaking, the antenna and power supply of the built-in antenna are installed in the case, which occupies a larger area. Small and convenient to use.

Cell Phone Blocker FAQ:

Using cell phone jammers: is it permitted by law?

Should Schools Install Cell Phone Jammers?

So why use a cell phone jammer?

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