How Many Full Band Frequency Jammers Should Be Installed in a Classroom?


As the annual college entrance examination approaches, the staff responsible for the examination venue are actively preparing various supplies needed for the important day. One of the devices being set up is the full band frequency jammer. This machine ensures order in the examination hall and maintains a conducive environment by effectively isolating all communication signals within the venue. In today’s world, electronic signals have become increasingly prevalent as a means of information transmission. To block these signals, the installation of full band frequency jammers is necessary. However, many schools are pondering the question of how many machines should be installed in each classroom.

Determining the Number of Jammers:

To address this issue, the actual interference effect of the full band frequency jammer must be considered, regardless of whether there is a base station within 300 meters or if it needs to penetrate through walls. In general, if there is no base station within 300 meters and the jammer is used in an open area, one machine is typically sufficient for a classroom. However, the actual usage scenario needs to be taken into account, as it cannot be accurately predicted. Therefore, for examination venues concerned about this aspect, conducting on-site tests with a full band frequency jammer can determine the interference effect and provide a solution.


Installing full band frequency jammers in classrooms during the college entrance examination is crucial for maintaining order and ensuring a fair testing environment. The number of jammers required depends on various factors, including the presence of nearby base stations and the need for signal penetration through walls. By considering the actual interference effect and conducting tests, schools can determine the appropriate number of jammers needed in each classroom. This will contribute to the smooth conduct of the examination and uphold the integrity of the college entrance process.