In view of the continuous development of communication standards, the third-generation 3G mobile phone signal jammer has been carefully developed according to the actual situation of foreign mobile communication. The difference between the jammer and the ordinary mobile phone signal jammer is that it can not only shield ordinary mobile phone signals, but also must completely cover the three frequency bands of the three domestic mobile communication operators. The 3G frequency bands used by the three domestic mobile communication operators China Mobile, China Unicom and China Telecom are as follows: China Mobile 3G frequency band (2010-2025MHz), China Telecom 3G frequency band (2110-2125MHz), China Unicom 3G frequency band (2130- 2145MHz). 5 antennas, 5 channels of transmission.
