The Importance of Power Level in Exam Room Signal Jammers

In the vast array of questions regarding exam room signal jammers, one question that frequently arises is whether there are maximum power level shielding devices available. School administrators often inquire if it is possible to solve the signal blocking issue in all exam rooms with just one or two high-power shielding devices. This article aims to explore why school exam room supervisors are keen on asking such questions and whether higher power levels are indeed better for exam room signal jammers.

Exam Room Signal Jammers and Power Levels:

To begin with, it is important to note that high-power shielding devices do exist, and various power levels can be customized according to customer requirements. However, based on years of experience in the field of signal blocking, it is advisable not to use high-power models for exam room signal jammers. Additionally, it is crucial to understand that higher power does not necessarily equate to better performance in shielding devices.

Purpose of Exam Room Signal Jammers in Schools:

The installation of exam room signal jammers in schools primarily aims to address the signal blocking issue within each exam room. However, it is essential to consider the internal structure of school buildings. Most educational buildings are constructed with reinforced concrete, consisting of multiple floors with concrete or brick walls that separate several classrooms. In such architectural structures, the optimal solution for achieving complete signal coverage within each classroom is to select low-power exam room signal jammers and install them in every room using a cellular network-like configuration.

The Role of High-Power Signal Jammers:

Now, let us examine the scenario for high-power signal jammers. Typically, high-power shielding devices are suitable for outdoor open environments or areas with minimal obstacles. However, they are insufficient to achieve complete signal coverage in all classrooms of a large building, resulting in signal blind spots. These blind spots can only be effectively addressed by supplementing with low-power exam room signal jammers.


In conclusion, while high-power shielding devices are available, they are not the most suitable choice for exam room signal jammers in schools. The power level of a shielding device does not determine its effectiveness. For school buildings with reinforced concrete structures and multiple floors, the optimal solution is to use low-power exam room signal jammers installed in each classroom to achieve complete signal coverage. High-power signal jammers are more suitable for open outdoor environments and cannot provide comprehensive coverage for an entire building. Therefore, it is crucial for school administrators to consider the specific requirements and architectural structure when selecting the appropriate power level for exam room signal jammers.