if you know what hp jammer is

Because the frequency sweeping signal forms random code interference in the message signal received by the mobile phone, the mobile phone cannot receive the normal data sent by the base station, which prevents the mobile phone from establishing a normal connection with the base station, thereby making the mobile phone separate from the base station communication network.The characteristic of the mobile phone is to find a cell phone jammer system with no signal and no service in the network to achieve the blocking effect, instead of relying on unlimited power increase to compete with the mobile phone base station to achieve the blocking effect.

The electromagnetic signal strength from the mobile phone signal booster is very weak.  The receiving antenna, the transmitting antenna, the host of the amplifier, the coupler power splitter, and the transmission cable cooperate with each other in order to achieve smaller attenuation, greater power, and better results.It takes a certain amount of time to adjust the outdoor antenna and indoor reception, especially indoor reception. Because the mobile phone is different, it receives network updates at different frequencies. We can manually turn off and on the flight mode, let it find the network again, and then use the dedicated test software to test the signal strength, test whether the call is stable and clear, if there is no problem, then we can fix the outdoor antenna.

As long as the electromagnetic radiation intensity of qualified products produced by regular manufacturers has been rigorously tested by national authoritative testing and certification agencies, the electromagnetic field intensity measured at all sampling points is lower than the "Electromagnetic Radiation Protection Regulations" stipulated by the State Environmental Protection Administration.The frequency of the electromagnetic signal emitted by the mobile phone is completely within the working frequency band of the mobile phone stipulated by the country, and the signal is always in a relatively static and constant state, and will not affect any other electronic equipment, will not interfere with the human brain, or affect normal human thinking.