Detailed introduction of full-band mobile phone signal blocker
Full-band cell phone signal blocker reasonably blocks all data signals such as CDMA (China Telecom), GSM (China Mobile, China Unicom), SCDMA (Netcom Da Lingtong), DCS (1800MHz), PCS (1900MHz), PHS (Telecom Xiaolingtong), 3G, 4G, 5G, Wi-Fi mobile phone Bluetooth, etc. It is mainly used in examination rooms, cells, courts, main venues, public libraries, theaters, cathedrals, gas stations, petrochemical plants, gas stations, hospitals and other places where information must be kept confidential, quiet, explosion-proof and impact-proof.
The actual working method of the full-band mobile phone signal blocker screen is as follows: Within the specified working frequency range, the communication equipment and the base station will be connected together according to the electromagnetic wave, and the data will be transmitted at a certain serial port baud rate and modulation method. In this way, wireless calls can be realized.
In fact, the above communication principle can be understood as that the full-band mobile phone signal blocker will transmit a low working 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 receiving the information file data. At this time, the mobile phone cannot receive the stable data information transmitted by the base station, so that the mobile phone cannot establish a connection with the base station. The mobile phone will have network search, poor signal, and no service management system.
Characteristics of the emission of the full-band mobile phone signal jammer
It will only block the mobile phone signal, but will not affect the normal operation of other electronic equipment.
It will only block the mobile phone signal in the hot test room, and will not affect the mobile phones outside the test room at all, nor will it affect the base station
It only blocks the descending frequency of the sending base station, and does not harm the ascending frequency
Low-carbon and environmentally friendly, the electromagnetic field strength is far lower than the national industry standard, and has no harm to human health
Easy to use, plug in the power supply, press the switch to start automatically
Problems and explanations encountered by the full-band mobile phone signal jammer
1. Why is the shielding scope of the full-band signal jammer different from that explained in the product introduction when it is started?
Answer: The shielding area and area electromagnetic induction strong field of the full-band mobile phone signal jammer are related to the distance from the communication station. Generally, the shielding distance is 300 meters away. The manufacturer of full-band mobile phone signal blockers needs to test under normal conditions, so the scope of shielding will be a little different.
2. Will there be radiation sources when shielding full-band data signals? Is it harmful to human health?
Answer: In fact, issues such as electromagnetic radiation are already old problems.
All electronic devices basically have radiation sources, but their radiation is very small and will not cause harm to the human body. Every electrical device has a radiation source. Just like the mobile phones we often use, it is inevitable that there will be radiation sources when leaning against our ears every day. Our country has very strict requirements on radiation and has already formulated a standard. All equipment must be lower than this standard before it can be sold on the market. However, the radiation source formed by our full-band mobile phone signal blocker is definitely lower than the standard set by the country, so it seems to have no effect on human health and can be used with confidence.