Mr. Zhao, who lives on Nanchang Road, is doing business and is very dissatisfied with his mobile phone being blocked for two days. He said that on Saturday, he had arranged an appointment with a customer to talk about business. After waiting for a day, he didn't see the phone and made the call, but the other party's mobile phone was still unable to connect. In the evening, the customer called and complained that his mobile phone was "out of the service area" all day, making himself confused. He called 10086 and asked about it, only to find out that it was a test from a nearby school and he used Make Your Cell Phone Jammer . Mr. Zhao said that in the past there were also problems with poor mobile phone signal at home, when the nearby schools held mid-term exams and final exams, and also when they encountered unified foreign language exams, self-study exams, and accountant exams. cell phone jammer This is the first time that the mobile phone has no signal for a day.
An expert from the City Mobile Company said that a Make Your Cell Phone Jammer with a Power of 20 watts can cover a radius of about two kilometers. If more than one is installed, the signal network in this area will be completely paralyzed. The problem encountered by Mr. Zhao may be that the nearby test center installed more than one mobile phone jammer or Power jammer in order to ensure the shielding effect of the mobile phone. It is understood that the mobile phone jammer is a kind of radio jamming device, which mainly transmits the same frequency radio signal in a local area to achieve the purpose of blocking the communication in the original frequency band. In recent years, with the popularity of mobile phones, the use of mobile phone signal jammers has become more frequent. According to data, the number of mobile phone jammers used by the education system in our city alone is over a thousand, which are used for various examinations.
