Factor 1: Jamming Effectiveness
The so-called jamming efficiency refers to whether there are blind spots or leaks in the jamming effect. In the vicinity of some prisons, there may be transmitting base stations with strong mobile phone signals. In order to achieve a good jamming effect, it will take a lot of materials and energy accordingly, and the cost will increase accordingly. Therefore, the better the jamming effect, the higher the cost will be. In practical application, the jamming 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 jamming area, and the original intention of jamming the mobile phone cannot be achieved.
Factor 2: No downtime
Prison signal jammer If the original stipulated trouble-free service life is 1 year, and the actual failure-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-effectiveness is greatly reduced.
Factor 3: External Interference
If the cell phone jammer does not consider external interference, it is relatively easy to simply shield it, as long as the jamming 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 jamming design should be fully considered and controlled technically to achieve accurate and efficient jamming without external interference.
Factor Four: Cost
The cost of jammer should follow the jamming requirements and budget. You can't blindly choose cheap products, and you can't think that expensive products are good. In the actual choice, word of mouth is very important. It is also necessary to inspect its past cases on the spot, try the jamming effect, and then make a selection. .
Combining these four factors, the cost performance of the jamming system can be presented by the following formula: (the larger the result, the higher the cost performance)
