The portable jammer has a large number of antennas

Internet users revealed that the instrument is located in an empty classroom in the school’s second teaching building, closer to the blackboard on the seemingly “black” wall of Instrument Science and Technology, and is still on the automatic switch. gsm jammer. In this empty classroom, the power cord was not connected to the signal shield and the switch was not turned on. Therefore, the reporter’s mobile phone signal is normal and the network can be used normally. The reporter will also find several floors in the second classroom building, both a school classroom and an empty classroom. The cellular signal remains undamaged and can receive information, make calls and use the Internet. “This is the structure of the standardized test location.” The person in charge of Chengdu University of Technology said that the mobile phone signal shielding device installed in the new teaching building is a work in progress in accordance with the requirements of the standardized test room. Only the new building is being installed here. All installation work has not yet been completed. He also said that the shield will be opened under unified requirements to participate in the four or six examinations to be held in December.

The phone will no longer receive signals from the base station. It has a powerful built-in battery. Mobile phone users cannot use this device to send, receive, or send or receive messages. It can block 3G, GSM and CDMA signals. If the portable cell phone jammer has a large number of antennas, the jamming signal will be stronger. There are several types of antennas. It plays an important role. Protect your personal life and business. The phone etiquette problem is inside the train. Using mobile phones is a problem. The radio waves of most mobile phones can cause cardiac pacemakers to malfunction. Buying a radio suppressor is the smartest choice to stop ringing. The development of such jammers is increasing. There is a way to protect yourself. It uses jammers. This is a very convenient device. It sends out enough radio waves to interfere with the call. Communication is suppressed.