A mobile device capable of accessing restricted text messages, enabling communication despite blocked channels

lindas jhon 2022/05/12

A cell phone jammer is an instrument used to protect a cell phone from receiving it. The mobile jamming device broadcasts the same frequency signal to the GSM modem. If the cell phone signal is disabled and the mobile jammer is enabled, the jamming is considered successful. A cellular phone is a full-duplex device that uses two frequencies simultaneously.

One is talking, the other is listening. Signal simultaneous processing. The phone's ability to view blocked text messages can only block one of the frequencies at a time, which results in both frequencies being blocked because the phone thinks there is no service in the area because only one of the frequencies can be accessed.

Jamming mobile phones works similarly to how 3G interferes with other types of radio communications. To use a cell phone, the signal is sent from the cell phone to the cell tower. A city has multiple cell towers.

As cell phone users move around an area, the signal is processed from one tower to another. cell phone jammer transmits the same radio frequency as the cell phone.

The jammer interrupts communication between the cell phone and the base station in the tower. Interference, also known as a denial of service attack, denies wireless signals to users in a dedicated area of the jamming device.

If you do not consider external interference, simple shielding is relatively easy, as long as the shielding power can be increased. However, it is necessary to ensure that the shielded area has no blind spots and no leakage points. The power intensity of the shielded area is relatively large.

If there's a leak, there's a lot of interference. This requires that the shielding design should be fully considered and controlled technically to achieve accurate and efficient shielding without external interference. Costs should follow shielding requirements and budget.

You can't blindly choose cheap products, and you can't think that expensive products are good. In the actual selection, the word of mouth is very important, it is necessary to investigate its past cases, try to shield the effect, and then the selection. The so-called mobile phone can check the efficiency of blocking SMS refers to whether there are blind spots or loopholes in the shielding effect.

Cell towers with strong cell phone signals may be located near some prisons. In order to achieve a good shielding effect, a large amount of materials and energy are required accordingly, and the cost will increase accordingly. Therefore, the better the shielding effect, the higher the cost.

In practical applications, the shielding requirements of prison areas are generally high, and there are slight leaks and blind spots. Criminals may seize this loophole, so that the phone can be used in the original regulation of the shielded area, and can not achieve the original intention of shielding the phone.