Now the Cell Phone Signal Jammer Application in the examination room is full-band, which can shield all the 2G 3G G signals, 2.4G WIFI signals and Bluetooth signals under all the three operators of China Mobile, China Unicom and China Telecom. Some posts say that after turning off the automatic selection of the mobile phone network operator, it will not be blocked if the network is manually selected. In fact, this is not correct, because the mobile jammer is aimed at all mobile phone frequencies under the three operators. It is shielded, so no matter how it is switched, it will be shielded, which means that no matter what the mobile phone card is, it is within the shielding range of the mobile phone jammer. cell phone jammer This cannot be avoided by cracking the number and band, because no matter which number or band you use, it is within its shielding range.
There is also Bluetooth software that won’t work, because its frequency will also be blocked by Cell Phone Signal Jammer Application . The only way is to install a mobile phone signal amplifier near the place where the mobile phone signal jammer is used to counter it. When the mobile phone signal becomes stronger, the mobile phone jammer will be more difficult to shield. You can avoid cell phone signal jammers if you don’t bring your cell phone during the exam. Mobile phone jammers are mainly aimed at various places where the use of mobile phones is prohibited, such as various examination rooms, schools, gas stations, churches, courts, libraries, conference centers (rooms), theaters, hospitals, governments, finance, prisons, public security, and military centers. The mobile phone signal jammer scans from the low-end frequency of the forward channel to the high-end at a certain speed during operation. This scanning speed can cause garbled interference in the message signal received by the mobile phone, so that the mobile phone cannot establish a connection with the base station. The mobile phone is manifested as a search network, no signal, no service system, etc.