The excellent performance of the jammer determines its multifunctional use

Japan relaxed its cell phone signal jammer regulations and allowed licenses to be used in theaters and other public places more than two years ago. You can prevent cellular frequencies from entering certain areas, while more expensive models interfere with larger areas. The briefcase-sized devices sold by the company can cover a radius of around 150 meters, while the basement-sized model can hold the conference room without a signal. The mobile phone is a smart and practical tool that allows us to call over the Internet to notify dinner arrival or confirm hotel reservations. They also confuse the police, those who are often optimistic or texting while driving, and modern schools have strict regulations on the use of cell phones. Excellent. You know, class time isn't cell phone time. Anyone who has young people around the house knows that these tools have become an important part of children's lives. Texting, tweeting, chatting and using the internet make up a large part of young people's daily lives. We can at least assume that they will stop using their cell phones during school in order to better concentrate on class. Speaking and using the internet make up a large part of young people's daily lives. We can at least assume that they will stop using their cell phones during school in order to better concentrate on class. Speaking and using the internet make up a large part of young people's daily lives. We can at least assume that they will stop using their cell phones during school in order to better concentrate on class.

The jammer sends signals on the same radio frequency as the cell phone and cuts off communication between the cell phone and the cell phone base station in the city. This is known as a denial of service attack. The jammer refuses to interfere with the use of the radio frequency spectrum by cell phone users within range of the device. Sometimes older GPS jammers are used auto. To interfere with the phone, all you need is a device transmitting on the correct frequency. Although different cellular systems process signals in different ways, all cellular networks use radio signals that can be interrupted. GSM for digital and PCS cellular systems operates on the 900 MHz and 1800 MHz frequency bands in Europe and Asia and the 1900 MHz (sometimes referred to as 1.9 GHz) frequency band in the United States. ). This GSM jammer can transmit on any frequency and is effective for AMPS, CDMA, TDMA, GSM, PCS, DCS, iDEN and Nextel systems. Old-fashioned analog telephones are just as susceptible to interference as today's digital devices. Interrupting a phone call is equivalent to interfering with another type of radio communication. The mobile phone communicates with its service network via a base station or base station. Communication towers divide the city into small areas or units. You can set the working range of the jammer independently of each other. When a cell phone user drives on the street, the signal is transmitted from the tower to the tower. The mobile phone communicates with its service network via a base station or base station. Communication towers divide the city into small areas or units. When a cell phone user drives on the street, the signal is transmitted from the tower to the tower.