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The mobile phone signal shielding system is a relatively professional modern communication signal shielding technology, especially in the special environment of the prison, which puts forward higher requirements for the mobile phone signal shielding technology. For example, in the application environment of the communication signal shielding system of a general conference, the participants come and go in a hurry, and there is almost no time to "search" for the blind spot of communication signal shielding. In the special environment of the prison, the number of people is dense and the activities are more concentrated. This is the time to use a cell phone signal jammer for shielding.

1. How to evaluate the effect of the cell phone signal shielding system of the monitoring institute? In order to achieve no shielding blind spots in the prison, the test should be repeated, and professional equipment detectors should be used in places with strong signals such as "windows" or "every corners". , radiation, and shielding of other systems; achieve no blind spots; meet the testing regulations of relevant departments

2. The problem of shielding effect and external shielding?

A high-quality mobile phone signal shielding system project must be completely shielded without affecting the communication of residents, not letting the people complain, and not letting China Mobile and China Unicom find trouble. Only when the shielded area is more accurate and there is no shielding outside the shielded area can it be regarded as a complete acceptance project.

3. Upgrade and expansion problems? Wireless communication technology is developing rapidly. Currently, 5G is in the trial operation stage. Yesterday, the system could be completely shielded. Today, there may be problems. Therefore, the construction of the shielding system should be modularized, and it can be easily upgraded according to the changes of the surrounding communication facilities, so as to substantially save the project investment and achieve permanent shielding.

Factor 1: The effective shielding efficiency of mobile phone signal jammers

The so-called efficiency of cell phone blocker means whether there are blind spots or leaks in the shielding effect. In the vicinity of some prisons, there may be transmitting signal sources with strong mobile phone signals. In order to achieve a good shielding effect, it will take a lot of materials and energy accordingly, and the cost will increase accordingly. Therefore, the better the shielding effect, the higher the cost will be. In practical applications, the shielding requirements of the prison area are generally higher, and there are slight leaks and blind spots. Some personnel may seize this loophole, so that mobile phones can be used in the originally stipulated shielding areas, which cannot achieve the original intention of shielding mobile phones.

Factor two: cell phone signal jammer trouble-free time

If the original non-fault service life is 1 year, and the actual use of the fault-free service reaches 3 years, the cost performance will be tripled. If the original fault-free service life is 1 year, and the actual use is less than half a year, there are often failures. Although it is a free warranty, the risk caused is immeasurable, and the personnel resources are also wasted. The corresponding cost performance is greatly reduced.

Factor 3: Cell phone signal jammers shield the outside world

If external shielding is not considered, it is relatively easy to simply shield the mobile phone signal, as long as the shielding power is increased. However, it is necessary to ensure that the shielded area has no blind spots and no leakage points. The power intensity in the shielded area is relatively large. If there is a little leakage, the external shielding will be very large. This requires that the shielding design should be fully considered and controlled technically to achieve accurate and efficient shielding without external coverage.

Factor 4: The cost of cell phone signal jammers

The cost should follow the shielding requirements and budget. You can’t blindly choose cheap machines, and you can’t think that the expensive ones are good. In the actual choice, word of mouth is very important, and it is necessary to inspect its past cases on the spot, try the shielding effect, and then make a selection.