How to test the shielding effect of cell phone signal jammer?
Before the cell phone jammer is officially put into use, it is not sure whether the cell phone signal jammer can meet the shielding requirements of the use site. Therefore, the shielding effect of the mobile phone signal jammer at the use site must be tested first, and then the mobile phone signal jammer can be determined. installation location and quantity. Before powering on the...
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