But what many people don’t know is that there is such a device, which may seriously affect the effect of the mobile phone signal shielding device, that is, the shielding range. This is a question that all college entrance examination rooms in the school need to consider. what device is this? It is the base station of the operator, commonly known as the signal tower, because if there is a base station near the test room, it will affect the shielding effect of the mobile cell phone jammer. Of course, this means that within 500 meters of the test room, the signal strength of the signal transmitted from the base station to the test room will be very strong, so the shielding range of the mobile phone jammer will be smaller.
If the base station is 500 meters away from the test room, it will have little effect on the cell phone signal jammer. As for why there is an effect, this is because the base station itself will generate a strong electromagnetic signal when it transmits signals to the surroundings, and the electromagnetic signal emitted by the base station, as the distance increases, the field strength electromagnetic signal will also correspond. The strength of the electromagnetic signal is one of the most important factors affecting the shielding effect of the mobile phone signal jammer. The field strength of the electromagnetic signal will correspond accordingly. The strength of the electromagnetic signal is one of the most important factors affecting the shielding effect of the mobile phone signal jammer. The field strength of the electromagnetic signal will correspond accordingly. The strength of the electromagnetic signal is one of the most important factors affecting the shielding effect of the mobile phone signal jammer.