How to choose a mobile phone signal blocker in the school examination room?
How to choose a cell phone signal jammer in the school examination room is mainly considered from the following aspects:
1. Consider the place where the school is used. For example, in the student dormitory, we usually install it in the corridor to shield the rooms on both sides, so we should consider the machine that can cover the entire dormitory. device
2. We choose the mobile phone signal jammer in the examination room from the function. Before 2020, in our fourth-generation communication period, we can use the mobile phone jammer for different centers. Some centers have not yet reached the improvement of 5G communication, so we can choose a more cost-effective 4G mobile phone signal jammer , With the improvement of 5G communication debugging equipment in 2021, the global panic of 5G communication debugging equipment, the shortage of chips, and the increase of raw materials 5G mobile phone signal jammers are also becoming more and more expensive. If the budget is sufficient, you can think about new Xinruida 5G mobile phones Signal jammers, the 4G mobile phone signal jammers we are talking about have included Mobile Unicom Telecom triple network 2G, 3G, 4G mobile phone signal jammers. The 5G mobile phone signal jammer has included the mobile phone signal jammer for China Unicom Telecom's three networks 2G, 3G, 4G, and 5G.
3. To choose a mobile phone signal jammer in the examination room, we first choose a branded normal channel product. The machine of the product contains the brand, model, company name, implementation specification, warranty card and other information on the machine packaging. After-sales service cannot be guaranteed.
4. When choosing a product, you can’t just look at the mobile phone signal jammers in the test room. We can compare and refer to the same 10-channel mobile phone signal jammer. We know how many watts the output power of each channel is and the total power It is only a few watts that only need the same power to better compare the product effect. If the machine with the same power, the same number of roads, and the price difference is relatively large, then we try to ask the factory to disassemble the machine to see if the frequency of debugging is correct. Whether the chips used in it are brand new and original, and whether each channel has chips, etc. are important references.