The principle of receiving signals from mobile phones: mobile phones and base stations are connected through radio waves to complete the transmission of data and sound at a certain baud rate and modulation.
The working principle of the blocker is to disrupt the phone’s reception of the signal. In the working process, the blocker scans from the low-end frequency of the forward channel to the high-end at a certain speed. The scanning speed can form garble interference in the message signal received by the mobile phone, and the mobile phone cannot detect the normal data sent from the base station, so that the mobile phone cannot establish a connection with the base station. Mobile phone search network, no signal, no service system and so on.
Applicable Place
Audiovisual venues: theaters, cinemas, concerts, libraries, recording studios, auditoriums, etc.
Security privacy: prisons, courts, examination rooms, conference rooms, funeral homes, government agencies, financial institutions, embassies, etc.
Health and safety: industrial plants, production workshops, gas stations, gas stations, hospitals, etc.
Usage Method
1. Select the area where the mobile phone signal needs to be blocked and place the blocker on the desktop or wall in this area.
2. After the installation is complete, power on the shield and turn on the power switch.
3. After the device is connected, press the power switch shield to work. At this time, all the mobile phones on the scene are in the state of searching the network, and the base station signal is lost, and the calling party cannot establish a call.
FAQ
1. Why is the shielding range different from that described in the manual when the shield works?
A: The shielding range of the shield is related to the electromagnetic strong field of the shield site and the distance from the communication base station, so the shielding effect is subject to the use of the site.
2. Will there be radiation when the mobile phone signal is shielded? Is it harmful to the human body?
A: About radiation, any electrical equipment will have radiation, even our commonly used smart phones also have radiation, the state has set a safety standard for mobile phone radiation, and our mobile phone signal shielding generated radiation is far lower than the national standard, almost harmless to the human body.
Post time: Jun-21-2023