With the high-speed development of modern communication technology, the use of cell phones has been widely popularized, cell phone communications in the convenience of people at the same time, but also to the communication security and confidentiality of the work put forward new challenges. In recent years, in our country has been the use of cell phones for eavesdropping, leaks, cheating, medical accidents, gas station explosions and other major accidents, the degree of harm and severity has caused leaders at all levels attach great importance.
A cell phone signal blocker using a special advanced technology pathway, in the working state can be automatically formed in the designated range of shielding magnetic field, so that cell phones can not play, access, so as to achieve the purpose of mandatory banning of cell phones. The introduction of the cell phone signal shielding, a complete solution to the various hazards brought about by playing the cell phone, so that people not only enjoy the high technology to human beings brought about by the speed and convenience of the surrounding environment does not cause interference, only on the cell phone communication signals to produce the role of other electronic equipment, no interference.
Two, cell phone signal shielding applications
Audio-visual places: theaters, cinemas, concerts, libraries, recording studios, auditoriums, etc.
Security and privacy: prisons, courts, examination rooms, conference rooms, funeral homes, government agencies, financial institutions, embassies, etc.
Health and safety: industrial plants, production plants, gas stations, gas stations, hospitals, etc.
Three. Cell phone signal shielding working range: 0-20 meters (radius)
Four. How to use the cell phone signal blocker
1. Select the area where you need to cut off the cell phone signal, and place the cut-off device on the desktop or wall in this area.
2. After the installation is completed, connect the power supply of the cut-off device and turn on the power switch.
3. After the equipment is connected, press the power switch to cut off the device can work. At this time, the site of all open cell phone in search of network status, the loss of base station signals. The caller and the caller are unable to establish a call contact.
Overview of the principle of cell phone signal blocker
V. Introduction to the principle of mobile communication :
The working principle of the cell phone is as follows: within a certain frequency range, the cell phone and base station are connected through radio waves, and the transmission of data and sound is completed with a certain baud rate and modulation.
Six, cell phone signal shielding principle
For the above principle of communication, the shielding in the process of working at a certain speed from the front to the low end of the channel frequency to the high end of the scanning. The scanning speed in the cell phone to receive the message signal to form a garbled interference, the phone can not detect the normal data sent from the base station, so that the phone can not establish a connection with the base station. The cell phone shows the phenomenon of searching the network, no signal, no service system.