Before installing the mobile phone signal jammer, it is necessary to test the interference effect. In particular, when the conference room interferes with mobile phone signals, the interference effect must be tested in the early stage. The meeting room of the employer is located in a relatively densely populated area. In these areas, operators will build more base stations to ensure the mobile network environment. The interference effect of the mobile phone signal jammer is closely related to the distance between the base station and the conference room. If the base station is close, the mobile phone signal in the conference room will be relatively strong. If the mobile phone signal on the site is strong, it will have a great impact on the interference effect of the mobile phone signal jammer. At this time, it is also necessary to optimize the mobile phone signal interference on these sites to find out the best mobile phone signal interference scheme.

During the test, it is necessary to place the Signal Jammer vertically on the conference table, then power on the jammer and turn on the switch. At this time, the test can be carried out. The test method is as follows:

Prepare mobile phone cards of different operators, select a place far away from the relative position of the jammer, and test the interference effect of 2, 3, 4, 5g mobile phone signals and WiFi signals of each operator's mobile phone. First, leave the mobile phone standing on the desktop for more than 2 minutes. At this time, do not perform any operation on the mobile phone. Then observe the change in the number of signal cells on the mobile phone. If no signal is displayed, it means that the location of the mobile phone is within the interference range. If the mobile phone shows a signal, you can try to dial the operator's service hotline and conduct data Internet access test. If you dial the phone or surf the Internet, the number of signal cells disappears, It means that the number of signal cells displayed on the mobile phone is false at this time, and the functions of making calls and data Internet access of the mobile phone have been disturbed. If you can make a phone call and access the Internet through data, move the mobile phone to the direction of the jammer for a certain distance, and then repeat the above operations until no signal is displayed on the mobile phone, or you can't make a phone call and access the Internet, and then you can judge the interference range of the jammer in this classroom.