What is the difference between the signal jammer in the examination room and the signal jammer in the prison?
The most important customer groups for products such as cell phone signal jammers include two categories: education system and public security system, and the needs of these two types of customer groups for products are different, which are briefly described as follows:
1. Mobile phone signal blocker in the examination room
The mobile phone signal jammer in the examination room is mainly used for important exams to cut off possible electronic cheating methods, such as the college entrance examination, postgraduate admissions exam, CET 4 and 6, etc. There are also many schools that generally use signal jammers in final exams.
Since it is used for exams, the maximum time is 3 hours, so the requirements for the heat dissipation capacity of the shield are not too high. In addition, generally each test room is placed with a shield, about 100 square meters, and the number is also well controlled.
2. Prison cell phone signal jammer
The biggest difference between the mobile phone signal jammers used by public security agencies, especially prisons, and the test room jammers is that they have extremely high requirements for use time. Due to the particularity of the environment, the prison signal isolator needs to be turned on and run 24 hours a day, 365 days a day, and cannot be powered off halfway. Therefore, the heat dissipation performance of the isolator is very high, and this type of isolator needs to be equipped with a cooling fan.
In addition, due to the particularity of the place, such as the large thickness of the wall, the effect of the shield will be affected, and it is necessary to test the appropriate number on the spot. Even many prisons will use high-power mobile phone jammers, and of course the price will be dozens or hundreds of times that of low-power jammers.
In a word: the biggest difference between the prison isolator and the test room isolator is the length of continuous working time, whether it can work continuously or needs to be shut down for cooling after a few hours; secondly, the shielding effect of the prison isolator is slightly better than that of the test room isolator.