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How to analyze the source of the signal missed by the mobile phone jammer?

How to analyze the source of the signal missed by the mobile phone jammer?

  • 2022-10-31

What is the effective range of the interference signal coverage? These problems are all problems that engineers need to face and analyze during construction. When the mobile phone jammer misses the signal,

During the installation and debugging of the mobile phone jammer, are all mobile phone signals on site completely jammed? What is the effective range of the interference signal coverage? These problems are all problems that engineers need to face and analyze during construction. When the mobile phone jammer misses the signal, that is to say, some mobile phone signals are not completely disturbed, even if the jamming device is in the state of interference, it is very far away from the device host. At close distances, some mobile phones can still answer or make calls, or can still browse websites and transmit data on the Internet. So, how to analyze and judge the sources of these missing signals?


If there are professional technicians from the mobile phone jammer manufacturer on site, they usually carry a portable spectrum analyzer. With the help of the spectrum analyzer, the technicians of the manufacturer can preliminarily determine which frequency band is by observing the spectrum waveform of each mobile phone frequency band. A missing signal has occurred. However, there are exceptions. For example, the signal strength of the base station is only slightly higher than the signal strength of the mobile phone jammer. At this time, it is difficult to distinguish which mobile phone frequency band has the missing signal from the frequency band waveform. When encountering such a scene environment , Is there any good way to find out which mobile phone signal frequency band has the problem of missing signal?

There is really a simple and practical method, which is to download an APP software on the tested mobile phone, the name of the software is: Cellular-Z. After the software is installed, start the "Cellular-Z" software, then turn on the mobile phone jammer, take the mobile phone to the predetermined test point that needs a certain distance from the jamming device, and then carefully observe the display interface of the software, focusing on one column marked "" NR-FREQ", if the displayed content shows a specific frequency value, then the corresponding missing mobile phone frequency band has been found. If the value of this position is empty, it means that the tested mobile phone is completely disturbed.

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