Ordinary conference room jammers generally use power adapters. Better quality conference room jammers use switching power supplies. You can select a battery to power the signal jammer according to the power adapter used or the output parameters of the switching power supply. However, there is generally no battery that can be exactly matched on the market. The battery generally needs to be customized, or a voltage regulator module is used to provide a stable power supply for the conference room jammer. Or directly connect the battery to the inverter, let the inverter provide a stable 200V AC power, and then connect the power adapter or switching power supply of the conference room interferometer through the power cable. Through the above two methods, the ordinary conference room jammer can be transformed into a portable jammer.
However, for well-known reasons, the size of the interference range of the mobile phone signal jammer is determined by the following two factors. First, the transmit power of the radio frequency modules in each frequency band of the mobile phone signal jammer. Under the same signal field strength, the transmit power The larger it is, the larger the shielding range of the jammer will be. Second, using the signal strength of the scene, the general conference room jammer, its shielding principle, in general, is the power suppression of white noise, which means that which device emits more power in this place, whoever has the better effect. For example, the signal strength transmitted by the conference room jammer in this frequency band covers the signal strength transmitted by the base station, so it will show that the mobile phone signal in this frequency band will be shielded, otherwise, it will not be shielded. Therefore, when transforming the conference room jammer, it is also necessary to consider whether the conference room jammer can meet the interference requirements of the conference room.