There are several types of mobile communication network signals that we use daily. In addition to the 4G network signals that are now popular, there are also the 3G network signals that were popular in the past few years, and the 2G network signals used by some elderly people. Although 5G network signals have become a topic discussed by many people now, it will still take some time before 5G networks are popularized. Today, let’s talk about the topic of whether installing a cell phone signal jammer can effectively block 4G network signals, so that everyone can have a more comprehensive understanding of the functions of a mobile phone signal jammer.
First of all, it is clear that mobile phone signal jammers can block 4G network signals. When a mobile phone works, it operates within a certain frequency range. The mobile phone and the base station are connected through radio waves to complete the transmission of data and sound at a certain baud rate and modulation method. In view of this communication principle, the mobile phone signal jammer scans from the low-end frequency of the forward channel to the high-end at a certain speed during the working process. This scanning speed can cause garbled interference in the message signals received by the mobile phone. The mobile phone cannot detect normal data sent from the base station, making it impossible for the mobile phone to establish a connection with the base station. Mobile phones show symptoms such as searching the network, no signal, and no service system.
The key to shielding 4G network signals is to look at the frequencies supported by the selected mobile phone signal jammer. The current 4G frequency band range is very wide, from 800M-2.4G. If you want to shield 4G signals, it depends on the performance of the signal blocker you use. How much bandwidth is supported? Because some 4G frequency bands almost overlap with WIFI 2.4. Once you block the 4G signal, WIFI and Bluetooth in the blocked area may not work properly. Therefore, whether the 4G signal can be shielded mainly depends on the function of the jammer product and whether a 4G signal shielding module is installed.