The Advancements in Modular Design of Full-Band Signal Jammers for Examination Halls

Enhancing Efficiency and Flexibility in Signal Interference for Exam Security

In every individual’s life, there are numerous examinations to be undertaken, ranging from middle and high school entrance exams, college English proficiency tests, various certification exams, to annual civil service exams. In examination halls, the full-band signal jammer has become a common and essential auxiliary device. With the advancement of technology, these signal jammers have evolved into modular designs, allowing for quick replacement of different frequency modules to facilitate rapid repairs or the addition of new frequency bands. However, the integration of different frequency modules into existing full-band signal jammers has posed challenges for manufacturers, as the initial designs were primarily based on standard mobile phone frequency bands, lacking consideration for diverse usage scenarios that require additional interference modules.

Modular Design for Enhanced Functionality

The production of full-band signal jammers has taken into account the potential need for additional frequency modules during the design phase to meet the growing demand for interference with different frequency signals. By incorporating a modular design, these signal jammers can easily accommodate the addition of various frequency modules, ensuring their effectiveness in disrupting signals across different usage scenarios. The initial designs, which were based on standard mobile phone frequency bands, have been enhanced to include the functionality of additional interference modules for diverse frequency requirements.

Expanded Output Channels and Cooling System

To further enhance the capabilities of full-band signal jammers, the integration of a cooling system has been crucial. By stacking heat sinks, the original 12-channel output can be expanded to 24 channels, providing ample space for future additions of full-band signal jammers without concerns about insufficient cooling capacity. This design also includes fixed mounting holes for stacked heat sinks, ensuring efficient heat dissipation. Moreover, the modular design allows for the expansion of interference frequency modules up to 24, enabling a wider range of signal interference or finer frequency adjustments to maximize the jamming effect within a specific environment.


The modular design of full-band signal jammers has revolutionized the field of exam security, offering increased efficiency and flexibility in signal interference. Manufacturers have overcome the initial limitations of standard mobile phone frequency bands by incorporating additional interference modules to cater to diverse usage scenarios. With expanded output channels and an optimized cooling system, these signal jammers can effectively disrupt signals across various frequencies, ensuring the integrity and fairness of examinations. As technology continues to advance, the modular design of full-band signal jammers will play a pivotal role in maintaining the security and reliability of examination halls.