We often have customer service tips and feedback, and mobile phone signal jammers are invalid. Why does adding a cell phone signal jammer sometimes not work or have little effect? This is due to the environment in which you are using the cell phone signal jammer. Under what circumstances is the effect of cell phone jammers weak?
Professionally, there are many reasons, but there are three reasons that are closer to ordinary consumers:

1. There is a base station around or near the cell phone signal jammer

2. There is a cell phone signal booster or signal booster near the cell phone signal jammer in use.

3. The wall of the mobile phone protection device used is relatively thick, especially the reinforced concrete wall. The ability of low-power machines to penetrate walls is particularly low.

In addition, current cell phone jammers all use technology that does not affect the uplink (base station), which improves the environmental requirements of cell phone signal jammers without affecting the use of cell phones by people. surrounding people. Shankino cell phone signal jammer is to test the signal strength of surrounding cell phones before purchasing the signal blocker, and then select the suitable signal jammer according to the actual signal strength.

6 Bands Signal Jammer

-40~-50: the signal is strong, there is a base station within 100 meters; -50~-60: There is a base station or signal booster nearby; -60~-70: signal is good; -70~-80: the signal is slightly weak; -80~ -90: Signal is weak; -90~-100: Basic communication status; greater than -100, the signal is already very weak. You can install mobile phone signal jammers based on these values.

Whether it's the school exam hall or Shankino employees come to take the test. This step is an important way to test the environment. By buying a cell phone signal jammer, you can learn more about the area around you before you buy it. Don't just look for cheap jammers, choose a powerful cell phone signal jammer manufacturer. Cheap machines have very little power and there is no way to protect the signal.