It is true that science and technology have made great strides in the past few years. Nowadays, mobile phones are not only not superfluous, but have become fashionable. The current situation is that operators of theaters and other venues are strongly calling for the development of effective countermeasures. If you want to stop them, you can use a GPS jammer to restrict the sending and receiving of mobile phones in your surroundings. Prevent the use of nuisance mobile phones and provide a quiet space with good manners. A simple and effective method is the use of a mobile phone signal blocking device. It is very effective in places that are inconvenient for mobile phones (places with poor environments).

As a measure against nuisance mobile phone use, the use of communication jamming devices in public places is permitted. In places where the jamming device is working, the mobile phone will be in a "out of range" state. The public is in favor of this measure. Jamming is expected to be implemented at the time, but the global mobile phone industry is naturally not silent. Measures to jam mobile phone communications in public places are permitted. Communication jamming devices disable mobile phone calls, voicemails, and sending and receiving text messages. Communication jammers are used by ordinary citizens.

Mobile phone companies and phone manufacturers are working hard to encourage responsible mobile phone use. Improving the image of mobile phones ultimately benefits these companies. On the other hand, there are concerns that jamming devices may be misused. Unscrupulous retailers may misuse the devices. They are eager to block mobile phones that are brought in. Currently, Chinese mobile phones are not working in a wide area. Many people use phones from two telecommunications companies. The jammer is a GSM jammer that blocks mobile phone calls, GPS systems, Wi-Fi communications, etc. I understand the desire to stop people from using mobile phones while driving.

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Devices that jam mobile phone signals are sold. It is easy to emit jamming signals, but the problem is the quality of the jamming signals, which are limited to a limited frequency. I read that jamming devices are used to disable GPS functions. We are also considering GPS tracking, but if they can be easily disabled, we will have to think of other measures. Theoretically, to jam radio waves, you can continue to transmit radio waves with the opposite phase to the radio waves, and of course, smartphones are equipped with wifi jammers that can transmit such radio waves.

The strength of radio waves from base stations for mobile phones and other devices varies depending on the location, but if you try to suppress the communication functions of mobile phones and other devices within a certain range, you can suppress them even in the strongest areas. A common telephone trouble is "nuisance calls" such as silent calls and prank calls. This applies when excessive nuisance calls make it impossible to respond to other customers. Recently, more and more people are jamming. Unless the jamming radio waves are detected on the spot, that is, unless it is proven that they were being used at the time, it will be difficult to catch them.