Introduction to the four factors affecting the price/performance ratio of prison cell phone signal jammers

One: effective shielding

The so-called effective shielding refers to whether there are blind spots or missing spots in the shielding effect. Near some prisons, there may be transmitting base stations with strong mobile phone signals. In order to achieve a good shielding effect, a lot of materials and energy will be spent correspondingly, and the cost will correspondingly increase substantially. Therefore, the better the shielding effect, the cost will increase accordingly. In actual use, the shielding requirements of the prison area are generally higher, and there are some missing points and blind spots. The offenders may seize this loophole, so that the mobile phone can be used in the originally prescribed signal jammer shielding area, and the original intention of shielding the mobile phone cannot be achieved.

Two: No failure time

If the original stipulation that the failure-free service life is 1 year, and the failure-free service reaches 3 years in actual use, the cost performance will be tripled.
If the original stipulation that the trouble-free service life is 1 year, it will often break down in less than half a year in actual use. Although it is a free warranty, the risk is immeasurable, personnel resources are wasted, and the corresponding price-performance ratio is greatly reduced.

Three: External interference

If external interference is not considered, it is relatively easy to simply shield, as long as the shielding power is increased. But it is necessary to ensure that the shielding area has no blind areas and no leakage points. The power intensity in the shielding area is relatively large. If there is a little leakage, the external interference will be great. This requires full consideration and technical control in shielding design to achieve precise and efficient shielding without external interference.

Four: Cost

The cost should follow the shielding requirements and budget. You cannot blindly choose cheap products, and you cannot think that the expensive is good. In the actual choice, word-of-mouth is very important. It is also necessary to conduct a field inspection of past cases, test the shielding effect, and then make a selection.