The widespread use of mobile phone jammers can cause certain interference to the base stations of mobile operators, which is a widely recognized reality in the industry. If it is a low-power mobile phone jammer, due to its relatively small transmission power and limited interference signal transmission distance, its interference impact on the mobile phone base stations can be tolerated in a small number of cases. However, if certain customer units purchase and use high-power mobile phone jammers, and their interference modules still use the conventional white noise high-power suppression method, then communication base stations with close proximity will not be able to withstand their interference! However, as a professional manufacturer of high-power mobile phone jammers for nearly 20 years, Nanjing Baikang Electromechanical Technology Co., Ltd. has relevant technical means to ensure that our high-power shielding equipment does not interfere with the base station. 

It is not difficult to solve the problem of base station interference, as the interference to the base station is mainly focused on the uplink frequency band of the base station. In the past, the base station signals of mobile phones were divided into uplink and downlink frequency bands based on frequency, and mobile phone jammers mainly interfered with the downlink frequency band of the base station. Unless it is a manufacturer of some inferior products that cannot precisely adjust the interference signal within the range of the downlink frequency band, it generally does not cause interference to the uplink frequency band of the base station. However, with the rise, promotion, and popularization of the TDD system for mobile phones, this system adopts a time division duplex working mode, which is within a fixed frequency range and does not distinguish between uplink and downlink frequency bands. It uses the bandwidth of the entire frequency band and uses time as the dividing standard, that is, processing uplink signals in one time period and processing downlink signals in the next time period. It is precisely because of this indiscriminate uplink and downlink mobile frequency band format that our mobile phone jammer inevitably generates signal interference during the uplink time period when using the conventional continuous white noise interference method for signal interference in this frequency band. Since the working mode of TDD is time division duplex, the solution is easy to implement, which is to synchronize it with the time slots of the base station for processing uplink and downlink signals through a synchronization module that receives the base station signal. Once synchronized, the interference signal from the mobile phone jammer is only emitted during the time period during which the base station processes downstream data. This perfectly avoids the time period during which the base station processes upstream data, and therefore no longer interferes with the communication base station.