During the installation and debugging of the wifi jammer, are all mobile phone signals on-site completely blocked? What is the effective range of the shielded signal coverage? These problems are all problems that engineers need to focus on and analyze during construction. When the wifi signal jammer misses signals, that is to say, some mobile phone signals are not completely shielded, even if the wifi jammer device is in a state of interference, it is far from the device. When the host is very close, some mobile phones can still answer or make calls, or they can still browse websites and transmit data on the Internet.
How to analyze and judge these missing signal sources?
If there are professional technicians from the wifi jammer device manufacturer on site, they usually carry a portable spectrum analyzer. With the help of the spectrum analyzer, the technicians of the manufacturer can initially judge the specific In which frequency band in the missing signal occurs. However, there are exceptions. For example, the signal strength of the base station is only slightly higher than the signal strength of the wireless wifi 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 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 wifi frequency jammer, take the mobile phone to the predetermined test point that needs a certain distance from the shielding device, and then carefully observe the display interface of the software, focusing on one of the columns marked as After the content of "NR-FREQ", if the displayed content has a specific frequency value, then the corresponding missing frequency band has been found. If the value of this position is empty, it means that the tested mobile phone is at this time. is completely blocked.
