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Why do exam halls generally not use high-power signal shields?
01 listopada 202301 listopada 2023 Dodaj komentarz0 komentarze Bez nazwy Bez nazwy
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In all types of examinations, it has long been a common practice to install wireless signal jammers in each examination room. However, almost 90% of examination centers choose low-power shielding equipment when selecting equipment. Why did you choose this? There are often high-performance shielding devices on the market, but why are they so common in exam rooms? What if you don't know how to use a high-performance signal jammer?


The answer to this question can be analyzed from two perspectives: one is the product performance and application scenarios of the powerful wireless signal jammer itself, and the other is the design of the examination room.


8 Bands Jammer Device

First, let's talk about the high-power wireless signal jammer. Its biggest feature is its high transmitting power and wide coverage. However, there are clear reminders in its instructions for use that high-power wireless signal cellphone jammer are mainly used in outdoor open environments. Environments like examination rooms are obviously indoor environments, and they are numerous and densely distributed. , each examination room is also separated by walls. This kind of wall barrier will shield the signal with great error, and it is easy to cause the shielded signal to only cover a local area or floor.


Considering these factors, high-power wireless signal jammers are strictly required not to be installed in buildings, but must be installed at an appropriate distance around a building. Moreover, for a building, at least 2-4 sets of high-power shielding equipment are usually required to basically meet the signal shielding needs.


The high-power wireless signal jammer itself also has the characteristics of large size, heavy weight, high heat dissipation and ventilation requirements, and high purchase cost. These characteristics also determine that high-power models are not suitable for the examination room.


Since high-power wireless gsm signal jammer are larger in appearance and heavier in weight, installation and construction are relatively complex, time-consuming and labor-intensive. Since the purchase cost of high-power wireless signal jammers is much higher than that of low-power shielding equipment, the price ratio between the two can reach 50:1 or even 100:1. We also take a building as an example. Suppose this building There are 50 examination rooms and classrooms in the building. If low-power wireless signal jammers are used, even if one is configured for each classroom, the total number will be 50. However, if you replace it with a high-power wireless signal shielding device, you may need at least 2-4 units. According to the aforementioned price ratio, you can conclude that if you use high-power shielding equipment, the construction investment cost may be Improved by 2-4 times.

 

TagiTagi: examination room 

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