Although mobile phone jammers have been around for decades, they have only received limited media coverage. They also appear in multiple video games, including "Batman: Forrest Gump City" and "Grand Theft Auto V: Saint Antilles". Although the history of these devices is unclear, they can function in various situations from attack to defense.
Although mobile phone signals are harmless to the human body, the signals generated by jammers can affect personal health and property.
In addition to blocking mobile phone signals, signal blockers can also interfere with emergency communication. By obstructing communication, signal jammer can disrupt critical communication in areas with high population density and high crime risk. This makes them potential security risks, even security threats.
The cell phone jammer blocks signals in areas as small as one to four square meters. Can block two frequencies or only one frequency. The result is signal distortion. If you are in a quiet area, you can only make emergency calls using the phone.
They can be hidden in the teacher's desk drawer or cabinet to prevent any interference. Other reasons for weak signal reception on mobile phones include the distance from the phone signal tower. Other reasons for weak signal reception include terrain type, atmospheric conditions, and human or natural obstacles such as dense trees.