Working principle and characteristics of full-band mobile phone signal jammer equipment

We have all experienced the college entrance examination. During the college entrance examination, the signal in the entire examination room will be blocked by the signal jammer, but it is such a common signal shielding device that many people know very little about it. Today, our 8341 Technology will explain to you the working principle and characteristics of the full-band mobile phone signal jammer equipment, and what problems are encountered during use.

Detailed introduction of full-band mobile phone signal jammer

The full-band mobile phone signal jammer reasonably shields CDMA (China Telecom), GSM (China Mobile, China Unicom), SCDMA (Netcom DHS), DCS (1800MHz), PCS (1900MHz), PHS (Telecom PHS), 3G, All data signals such as 4G, 5G, Wi-Fi mobile phone Bluetooth, etc. It is mainly used in examination rooms, prison cells, courts, main venues, public libraries, theaters, cathedrals, gas filling stations, petrochemical plants, gas filling stations, hospitals and other places where information must be kept confidential, quiet, explosion-proof, and impact-proof.

Detailed introduction of full-band mobile phone signal jammer

The actual working method of the full-band mobile phone signal jammer screen is introduced as follows: within the specified operating frequency range, the communication equipment and the base station will be connected together according to the electromagnetic wave, and the data will be transmitted with a certain serial port baud rate and modulation method. This enables wireless calls.

In fact, the above communication principle can be understood as that the full-band mobile phone signal jammer will transmit low operating frequency to the wireless communication equipment at a specific speed during the startup process and move towards the high-end scanner. This scanning speed can also cause the mobile phone to generate an error code before the mobile phone receives the information file data. At this time, the mobile phone cannot receive the stable data information sent by the base station, so that the mobile phone cannot establish a connection with the base station. The mobile phone will have the phenomenon of network search, poor signal, and no service management system.

Characteristics of the full-band mobile phone signal jammer emission

It will only block the mobile phone signal, but will not affect the normal operation of other electronic devices.

It will only block the mobile phone signal in the hot-fixed examination room, and will not affect the mobile phones outside the examination room at all, nor will it affect the base station

Only the down frequency of the sending base station is shielded, and the up frequency is not harmed

Low-carbon and environmentally friendly, the strength of the electromagnetic field is far lower than the national industry standard, and there is no harm to human health

Easy to use, plug in the power supply, press the switch to start automatically

Problems and explanations encountered by full-band mobile phone signal jammers

1. Why is the shielding range different from that explained in the product brochure when the full-band mobile phone signal jammer is activated?

Answer: The shielding area of ​​the full-band mobile phone signal jammer is related to the area of ​​the strong electromagnetic induction field, and is related to the distance from the communication station. Generally, the best shielding distance is 300 meters away. Manufacturers of full-band mobile phone signal jammers need to test under normal conditions, so the range of shielding will vary.

2. Will there be a radiation source when the full-band data signal is shielded, and will it be harmful to human health?

A: In fact, questions about electromagnetic radiation are old questions.

But all electronic equipment will basically have a radiation source, but its radiation is very small and will not cause harm to the human body. Every piece of electrical equipment has a source of radiation. Just like the mobile phones we usually use, it is inevitable that there will be radiation sources when we lean on our ears every day. Our country has very strict radiation requirements. A standard has been established. All devices must be lower than this standard before they can be sold on the market. However, the radiation source formed by our full-band mobile phone signal jammer is definitely smaller than the national standard, so it seems to have no effect on human health, and it can be used with confidence.