The Importance of Choosing the Right Power Level for Classroom Mobile Phone Signal Jammers

In the realm of mobile phone signal jammers designed for classrooms, one of the most frequently asked questions is whether there are jammers with the highest power output. School administrators often wonder if just one or two high-power jammers can effectively solve the signal blocking issue in all examination rooms. This article aims to address the reasons behind this query and provide recommendations on the appropriate power level for classroom mobile phone signal jammers.

The Need for Signal Blocking in Schools:

Classroom mobile phone signal jammers are primarily installed in schools to address the issue of signal interference in examination rooms. While high-power jammers are indeed available and can be customized according to customer requirements, our years of experience in the field of signal blocking suggest that high-power models are not the most suitable choice for classroom jammers. Additionally, it is important to note that higher power does not necessarily equate to better performance.

Considerations for School Buildings:

School buildings are typically constructed with reinforced concrete, featuring multiple floors and classrooms separated by concrete or brick walls. To effectively cover the signal blocking needs within such structures, it is recommended to opt for low-power classroom mobile phone signal jammers. These jammers should be installed in each individual classroom, utilizing a cellular network-like configuration to achieve complete coverage. This approach offers the best solution for signal blocking in school buildings.

The Role of High-Power Jammers:

So, what is the purpose of high-power jammers? Generally, high-power jammers are suitable for outdoor open spaces or areas with minimal obstacles. If a customer insists on using high-power classroom mobile phone signal jammers, the result would be improved signal blocking performance. However, due to the obstruction and attenuation caused by building walls, relying solely on one or two high-power jammers would not be sufficient to achieve complete signal coverage in an entire building. This would result in signal blind spots, which can only be addressed by supplementing with low-power classroom mobile phone signal jammers.


When it comes to selecting the appropriate power level for classroom mobile phone signal jammers, it is crucial to consider the specific requirements of the school building. While high-power jammers may offer better performance in certain scenarios, they are not the ideal choice for classroom settings. Instead, low-power jammers installed in each individual classroom provide the most effective solution for signal blocking. By understanding the limitations and advantages of different power levels, school administrators can make informed decisions to ensure a conducive examination environment free from signal interference.