Main factors affecting cell phone jammer in prison

　　Factor 1: Cell phone jammer shielding efficiency

　　The so-called shielding efficiency refers to whether the shielding effect has blind spots or leaks. In the vicinity of some prisons, there may be transmitting base stations 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 practice, the shielding requirements of the prison area are generally higher, and there are slight leaks and blind spots. The offenders may seize this loophole, so that the mobile phone can be used in the originally stipulated shielding area, and the original intention of shielding the mobile phone cannot be achieved.

　　Factor 2: No downtime

　　If the original provision for trouble-free service life is 1 year, and the actual use without trouble reaches 3 years, the cost-effectiveness has tripled.

　　If the original fault-free service life is 1 year, and the actual use is less than half a year, it often breaks down. Although it is a free warranty, the risk caused is immeasurable, and the personnel resources are also wasted. The corresponding cost-effectiveness of the cell phone jammers gps is greatly reduced.

　　Factor 3: External interference

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

　　Factor 4: Cost

　　The cost should follow the shielding requirements and budget. You can't blindly choose cell phone jammer products, and you can't think that the expensive product is good. In the actual choice, word of mouth is very important, and you must inspect its past cases on the spot, try the shielding effect, and then do it. selection.