Upgrading the Anti-Cheating Device in Examination Halls from 4G to 5G

Examinations play a crucial role in evaluating one’s knowledge and skills. From the middle school entrance exam, college entrance exam, graduate school entrance exam, English proficiency tests, various professional certification exams, to the annual civil service exam, candidates are familiar with the common sight of anti-cheating devices in examination halls. Before the widespread adoption of 5G technology, these devices could only interfere with 4G signals. However, with the continuous development of the communication industry, 5G smartphones have become prevalent. This raises the question of how to upgrade the old anti-cheating devices in examination halls to interfere with 5G signals.

The Challenge of Upgrading to 5G:

As we know, the current anti-cheating devices in examination halls are modular, meaning that different frequency bands require different modules. By quickly replacing modules, these devices can be easily repaired or have additional frequency bands added. However, for many manufacturers, adding different frequency band modules to the existing devices poses a challenge. During the initial design phase, these devices were designed according to standard mobile phone frequency bands, lacking the functionality to accommodate different usage scenarios that require additional frequency band interference modules. To upgrade to 5G, it is necessary to create a separate module space on the existing anti-cheating devices to add a 5G module or add a separate anti-cheating device that interferes specifically with 5G signals.

Considerations in Design:

Manufacturers of anti-cheating devices have already taken into account the need to add different frequency band modules during the design process. By stacking heat sinks, these devices can easily expand from the original 12-channel output to 24-channel output. The design also includes fixed mounting holes for the stacked heat sinks, ensuring that there is enough space for heat dissipation even when additional frequency bands are added. This design feature allows for the expansion of up to 24 interference frequency modules, enabling more signal interference frequencies or enhancing the shielding effect by refining the frequencies within the same location.


As 5G technology becomes more prevalent, it is essential to upgrade the anti-cheating devices in examination halls to interfere with 5G signals. Manufacturers have addressed this challenge by designing modular devices that can accommodate additional frequency band modules. By creating space for 5G modules and incorporating heat dissipation capabilities, these devices can be easily upgraded to meet the evolving needs of examination halls. This ensures the integrity and fairness of examinations, providing a secure environment for candidates to demonstrate their knowledge and abilities.