Does the full-band jammer interfere with the base station?
The wide use of full-band jammers will cause certain interference to the base stations of mobile operators. The transmission distance is limited, so when the number is small, its interference impact on mobile phone base stations is tolerable. However, if some customer units purchase and use high power jammers, and their jamming modules still adopt the conventional white noise high-power suppression method, then the communication base stations with relatively close distances will be unbearable!
However, as a professional manufacturer of high-power full-band jammers for nearly 20 years, Nanjing Bokang 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. Usually, the interference to the base station is mainly the interference to the uplink frequency band of the base station. In the past, the base station signals of mobile phones were divided according to frequency, and generally the uplink frequency band and downlink frequency band were specially divided, while the full-band jammer mainly interfered with the downlink frequency band of the base station. Unless the manufacturers of some inferior products cannot precisely adjust the interference signal within the range of the downlink frequency band, they will generally not interfere with the uplink frequency band of the base station. However, with the rise, popularization and popularization of the TDD system of mobile phones, since this system adopts the working mode of time division duplex, that is, it does not distinguish between uplink and downlink frequency bands in a fixed frequency range, it uses the entire The bandwidth of the frequency band is divided by time, that is, the uplink signal is processed in one time period, and the downlink signal is processed in the next time period. It is precisely because of this mobile phone frequency band system that does not distinguish between uplink and downlink, when our full-band jammer performs signal interference on this frequency band, the conventional continuous white noise interference method will inevitably produce signal interference in the uplink time period .
Since the working mode of TDD is time-division duplex, the solution is easy to implement, that is, through a synchronization module that receives base station signals, it is synchronized with the time slots for processing uplink and downlink signals of the base station. Once synchronized, the interference signal of the full-band jammer is only transmitted during the time period when the base station processes downlink data, which perfectly avoids the time period when the base station processes uplink data, so it will no longer interfere with the communication base station .