Mobile phone signal jammer mainly for all types of examination rooms, schools, gas stations, churches, courts, libraries, conference Center (room), theaters, hospitals, government, finance, prisons, public security, military places such as the prohibition of the use of mobile phones.
It is understood that the market now the mobile phone signal shielding can be limited to 500M meters from the transmitter, and the radius of S. 20 meters of mobile phone signals. The shielding radius is adjustable, it only shields the cell phone signal, but does not have the influence to other electronic devices. Energy saving, power for 20w-480w.
Mobile phone work, is in a certain frequency range, the cell phone and the base station through the radio waves, connected to a certain baud rate and modulation method to complete the data and sound transmission. For this kind of communication principle, the mobile phone signal shielding device in the work process at a certain speed to the channel at the lower end of the high-frequency scanning. The scanning speed can be in the mobile phone receiving message signal to form garbled interference, the cell phone can not detect the normal data from the base station, so that the cell phone can not be connected with the base station. Mobile phone performance as a search network, no signal, no service system and so on.