Before the mobile phone signal jammer is officially launched, the shielding effect of the mobile phone signal jammer must be tested first, so that the installation location and quantity of the cell phone jammer can be selected.
First, preset the installation position of the mobile phone signal shielding device, and place the mobile phone signal jamming device on the desktop, usually at the front and rear corners of the use site. Turn on the power and turn on the switch to test the shielding effect. .
Before preparing for the test, prepare three mobile phones of different operators, and place the mobile phones in the opposite corners of the use site, which is also the farthest position from the on-board signal shielding device. Then let the mobile phone stand for about 2 minutes. During this period, please do not perform any operations on these three mobile phones, and then check whether the mobile phone signal is blocked on the mobile phone screen. It is blocked. If the mobile phone shows that there is a signal, you can try to call the operator's customer service hotline, or use the mobile phone network for data Internet access. If it is possible to make calls or access the Internet via data, move the cell phone to a position close to the cell phone signal jammer, and reciprocate until the cell phone is completely blocked, and the cell phone cannot make calls or access the Internet via data. Use this to determine the shielding range of the mobile phone signal jammer, and use this shielding range to determine the number of mobile phone signal jammers used.
If the mobile phone signal at the use site is strong, and the low-power mobile phone signal shielding device cannot completely shield the entire use site, you can determine the signal frequency band that cannot be shielded by the mobile phone signal jamming device, and then according to the tested frequency band, to do for this frequency band The targeted interference of the high-power shielding module can be used. First, download the Cellular-Z mobile phone APP with an Android phone, and then open the mobile phone APP on the premise of turning on the mobile phone signal jammer, and then take a screenshot and send it to the supplier technician of the mobile phone signal jammer, and the manufacturer will determine the mobile phone signal. The frequency band of mobile phone signals that cannot be blocked by the shielding device. Finally, by using a high-power shielding module to cover the frequency band with strong signal, the shielding of the mobile phone signal in the place of use can be realized.