At the project site where the cell phone jammer is installed, if there is no professional technical personnel from the manufacturer, and there is no spectrum analyzer that is most suitable for signal analysis, can you use mobile phone software for auxiliary testing?

Use mobile phone APP software for signal testing and analysis, the most commonly used example is: "Cellular-Z", which can obtain the reference value of signal strength, and can also obtain some basic frequency data of mobile phone base stations, and can also be used for on-site WIFI router information, GPS navigation and positioning information, etc. to read. It can play a very good reference role for on-site wireless signal environment analysis. But it must be clear that these data are only for reference, and these data cannot represent all accurate information. Why do you say so?

ecause what we need to know is: the cell phone jammer needs to shield the signal for all types and formats of mobile phone signals, and then if the data is read by the "Cellular-Z" software on the mobile phone, the signal strength you see can only be Represents the signal strength of the frequency point (or frequency band) of the mobile phone that the current mobile phone is using. However, even in the same location, our mobile phone will actually receive many signals from the mobile phone base station, that is, there will be multiple For mobile phone frequency bands, the actual result is: the signal strength displayed by the software does not represent the signal strength of other frequency bands. This results in the lack of on-site detection data. Although in most cases, the mobile phone will automatically select the frequency band (or frequency point) with the strongest local signal, but in an environment with many mobile phone users, such a rule will not exist.

If the conditions are limited, there is only the only option to use the mobile phone software to test the signal strength at the site of the mobile phone signal shielding project, because at the same time, it is necessary to take into account that the signal frequency bands of China Mobile, China Unicom, telecommunications and radio and television all need to be tested and recorded. Therefore, our suggestion is: it is better to bring a few more mobile phones, these mobile phones need to support the above four operators, and when doing on-site testing, the mobile phones need to be set in 2G, 3G, 4G and 5G modes respectively. Test and record the read signal strength values in detail.