Nowadays, all kinds of wireless signal jammers emerge in endlessly, but no matter what kind of renovation, the multi-band wifi jammer in its core components is indispensable. After assembling the signal shielding modules of several frequency bands, It will be a very important height step to accurately adjust the center frequency, frequency offset, and bandwidth of each module.
What are the precautions for the production and debugging of multi-band wifi signal jammers?
Compared with signal jammers ten years ago, especially for the types of mobile phone signals, there are not as many mobile phone standards as now. At that time, there were only two standards for mobile phone signals, 2G and 3G, and the mobile phone frequency bands used. Only 4 or 5 are needed. At that time, the workload of debugging a shielding device was relatively small, and technicians usually only needed to adjust the four or five shielding modules one by one. The debugging process is also very simple. Generally, only two adjustable potentiometers are needed to adjust the frequency offset and bandwidth for each shielding module.
However, the current wifi jammer device no longer only include four or five shielding modules to achieve the shielding effect of all signals, usually at least 10 or even close to 20 shielding modules are included at every turn. When a multi-band wifi jammer has such a large number of shielding modules at the same time, the debugging and calibration of each module becomes more time-consuming and laborious, and there are also many unexpected effects.
When the technicians debug the frequency of each shielding module one by one, each time one is completed, the setting parameters on the debugging instrument need to be reset for the next frequency band. In this way, it will take a long time to debug a wifi blocker device time. And embarrassingly, after debugging several frequency bands, if you go back to check the module that has just been debugged, you will find that the actual output frequency of the module has some deviations. This requires calibration and tuning again, and so on. The reason is that there are too many frequency bands, there is signal interference between multiple frequency bands, and there is also the reason why the frequency output changes due to the voltage change of the power supply board.
In view of the above problems, we have concluded that the most ideal solution is: according to the number of frequency bands of the multi-band wireless wifi jammer, use an equivalent number of spectrum analyzers, and customize a dedicated equipment debugging test bench, once While adjusting the frequency, technicians can visually observe whether each shielding module meets the correct debugging parameters through the waveform display on multiple spectrum analyzers.
