are cell phone jammers illegal

The Cell Phone Jammers adopts techniques such as frequency multiplication, frequency division, and frequency hopping filtering for the upstream and downstream channels of the mobile phone system to analyze the required shielding frequency. Then customize a spherical shielding space according to the power of the shielding device, and automatically form a shielding magnetic field within the specified range, so that the mobile phone signal of the mobile phone in this spherical shielding space is invalid. When the cell phone jammer is in the working state, it can disable the signal receiving and sending functions of the mobile phone within the specified range, and cannot dial out and dial in, so as to achieve the purpose of mandatory prohibition.

The Cell Phone Jammers has a wide range of applications, and can be used in many occasions or areas, such as various invigilators, prisons, detention centers, drug rehabilitation centers, offices, conference rooms, gas stations, oil depots, churches, hospitals, courts, and military centers , Libraries, theaters, factory workshops and other places.However, it should be noted that in densely populated areas such as schools, it is forbidden to set up radio stations with excessive electromagnetic radiation, and mobile phone signal jammers are not allowed to be used in residential areas.

The radio signal emitted by the jamming technology is too strong, causing the cell phone signal to be suppressed, and it can no longer communicate with the cell phone tower. The effective range of the jammer ranges from a few centimeters to a few meters, and the equipment costs between 50 and several hundred dollars. Larger devices can be kept to create actual cell phone exclusion zones.James Katz, director of the Mobile Communications Center at Rutgers University, said: "If there is one thing that defines the 21st century, it must be our inability to control ourselves for the benefit of others." "Those who call think that they have more rights than those around you. Everyone, and those who carry the disruptors think their rights are more important."