Is there a contradictory relationship between the mobile phone jammer and the signal?
Mobile phone jammers are used in examination rooms, detention centers, conference rooms and other occasions. Users in some places have reported that the shielding effect is not ideal. In fact, these problems are not the reasons for the jammer itself. The jammer is a wireless interference device, which is directly related to the use environment. . Just like a mobile phone, some places have good signal and some places have poor signal.
The shielding device and the signal are the relationship between the spear and the shield. The shielding effect of the strong signal is poor, and the shielding effect of the weak signal is better. Therefore, the use environment of the jammer is that there is no communication base station within 200 meters. If there is a communication base station nearby, the number of jammers must be increased to cancel the signal of the communication base station.