Do you know how the phone can't receive the signal? Not only does it block mobile phone signals, it also has to do with how the phone communicates. Depending on the building, radio waves may be out of range. Radio waves do not reach. Another option is to use a mobile jammer that forces you out of service. The device is a radio wave barrier. This device can interfere with the smartphone signal. The mobile phone will be recognized as out of service area and you will not be able to make a call. You can block connections to Wi-Fi networks and Bluetooth devices.
There is also a way to prevent mobile phone calls inside the jammer train. There are rules such as prohibiting in-car calls. At home and pregnant women, the effects of electromagnetic waves are a concern. Let's also explain how to block effective electromagnetic waves. This device is used in places such as movie theaters, conference rooms, hospitals, trains, etc. where the power is turned off and the manner mode is recommended. GPS jammer You can block various communication functions. Sufficient shielding ability. Turning off the power will solve the problem.
The location of the deterrent device may affect Wi-Fi and Bluetooth. There is a principle that the radio frequency transmitted from the bail network cannot be received. By emitting a constant frequency signal, the signal jamming telephone signal strength covers a specific area of the telephone signal. I can't communicate. This is the reason why it cannot be received. Let's understand the principle of mobile communication. Smartphone Electromagnetic Covers Can be divided into a number of bandwidth channels, including very important channels called control channels.