For the uplink and downlink channels of the mobile phone system, use frequency multiplication, frequency division, frequency hopping filtering and other technologies to analyze the required shielding frequency; customize the spherical shielding space according to the power of the mobile phone jammer, and automatically form a shielding magnetic field within the specified range of Cell Phone Controller Blcoker . Invalidate the mobile phones (including PHS-“PHS GSM-China Unicom, China Mobile, CDMA-China Telecom) in the space. When the cell phone jammer is in working state, the signal receiving and sending functions of the mobile phone can be turned off. The mobile phone is within the specified range It can not dial out and dial in, so as to achieve the purpose of forced prohibition. And complete the transmission of data and sound with a certain baud rate and modulation mode. The speed in the working process, this scanning speed will cause the message signal received by the mobile phone When there is garbled interference, the mobile phone cannot detect the data om base station sent normally, so that the mobile phone cannot establish a connection with the base station.
What is the range of a cell phone jammer? We handle all kinds of Cell Phone Controller Blcoker . It has different interference ranges. Here you can get the desired product effect. You can choose the scope to block. There is a way to adjust your range. Usually filled within 40 meters. Small devices can block a small area. A powerful cell phone signal jammer can block a wide range of signals. Small signal jammers are very common in everyday life. The military or police use off-site equipment. Such products use mature technology. The shielding effect is very good. A good shielding effect can be obtained over time of use. The shielding effect of cell phone jammers is very good. The cost is a bit high. It may be affected by various factors. There are many rooms in the prison. The walls of the prison are much thicker than usual. When buying a signal stealth device, be sure to choose a product with a very high penetration rate. Shielding blind spots can exist in prisons. Therefore, in general, choose a high-power external antenna WiFi RF shield.
