Although the 4G network has been widely covered, I don’t know if you still feel this way. When you use 4G at home, the signal will still be very stuck and slow. Sometimes even 2G jumps to no service, which is just a breakdown.If the signal at home is weak, and the signal outdoors is slightly better, it means that it is caused by the surrounding building environment, and the signal is poor due to environmental factors. This problem can still be solved. A good cell phone jammer is essential. What are the special features of home mobile phone signal jammers? How should we choose? Look down and find out.
The working principle of the mobile phone signal blocker (also known as the cell phone jammer and the cell phone jammer is the scan signal generated by the sawtooth signal generator is inverted by the inverter, and then enters the voltage-controlled oscillator for code division multiple access, GSM It is modulated on the same frequency band as the three downlink frequencies of PHS. The modulated scan signal is amplified by the power amplifier. The power of the power amplifier is controlled by the voltage regulator tube to make the transmission power less than 1W. The amplified scan signal is transmitted in the form of radio waves. In the air.
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.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.