During important exams such as the National College Entrance Examination (known as Gaokao in China), the National Higher Education Entrance Examination (known as Zhongkao in China), or the College English Test Band 4 and 6 (CET-4 and CET-6), it is crucial to maintain a fair testing environment and prevent cheating. To achieve this, exam room signal jammers are used as essential tools to ensure exam security and stability. However, there are still a few individuals who attempt to evade these protective measures and resort to extreme acts of sabotage. This article will explore how exam room signal jammers prevent human interference and maintain the integrity of examinations.
The Challenges of Traditional Signal Jammer Distribution:
In various types of exams, the exam authorities typically use desktop interference devices, which are distributed to invigilators before the exam or placed in each examination room. However, this method presents several challenges. Firstly, the distribution and collection of signal jammers are time-consuming and labor-intensive. Additionally, the installation and usage of these devices are often haphazard, with some invigilators placing them directly on the podium, while others leave them on chairs or the floor. Since the interference devices require power to function, they need to be connected to an AC power outlet using a power cord. This lack of standardization in distribution and usage is highly irregular and can compromise the effectiveness of the signal jammers. Moreover, the frequent distribution and collection of signal jammers inevitably lead to wear and tear, potentially damaging the devices.
The Advantages of Wall-Mounted Signal Jammers:
An alternative method is the use of wall-mounted signal jammers, where the interference devices are pre-installed in the examination rooms and only require activation at the start of the exam. This installation method is more standardized and secure. Furthermore, the height of the installation is slightly higher than the upper edge of the blackboard, effectively preventing human interference. To enhance protection against sabotage, all the necessary cables, including the power cord and network communication cables, are concealed within a hidden installation compartment. This further improves the level of protection against human interference.
Preventing Human Interference:
When analyzing the methods of human interference with exam room signal jammers, the most common forms of sabotage include disconnecting the antenna, unplugging the power cord, or tampering with the network communication cables. By concealing all these cables within a hidden installation compartment, the level of protection against human interference is significantly enhanced.
Exam room signal jammers play a crucial role in maintaining the fairness and integrity of examinations. While some individuals may attempt to evade these protective measures, the use of wall-mounted signal jammers provides a more standardized and secure solution. By concealing all necessary cables within a hidden installation compartment, the level of protection against human interference is significantly enhanced. As technology continues to advance, it is essential to prioritize the development and implementation of effective measures to safeguard the integrity of examinations.