Nowadays, smart phones have long become a must-have item in personal life, and there are not a few people in the student party who have mobile phones. How to control the use of mobile phones by students, how to establish the balance between learning and entertainment... It seems that it has always been a problem that lies in front of parents and schools.
The Silver Lake Experimental School in Fuyang District, Hangzhou used a "new solution": a cell phone jammer was installed on the campus and turned on regularly every night to prevent students from playing mobile phones at night. However, in the past two days, there have been voices on the Internet that some residents living in Shijiayuan Garden in Fuyang said that when they use their mobile phones at home, the signal is not stable, and it is suspected to be related to the school's cell phone jammer. Is it true that it hurts the pond fish?
Shijiayuan Garden is located 800 meters east of Yinhu Experimental School and belongs to the Huiqianfang Community. At noon yesterday, a reporter from Qian Bao came to the community. The reporter took out his mobile phone, the system showed that the signal was full, and the call and Internet were relatively smooth. The reporter randomly interviewed more than ten households, and most of them said that the mobile phone signal at home was not bad. A few households near the hills and low-floor households occasionally experience poor cell phone signals.
Aunt Shi, who lives in the three buildings in the South District of Shijiayuan Garden, told reporters that she had just moved in for more than half a month. “Using mobile phones at home is not very frequent. However, the guests complained about the mobile phone signal during a treat at home two nights ago. Poor, 4G becomes 2G, and I can’t make calls. In the end, I can only make calls outside, and I don’t know why."
Manager He, the property manager of Shijiayuan Huayuan Community, told reporters that the community began to hand over houses at the beginning of this year and there are currently 74 residents who have moved in. “At present, in the management, we have not received any complaints from residents about poor mobile phone signals.”
Have any residents in other communities reported abnormal signals? Is the interference from the signal jammer in the small area serious? If the signal jammer does have an impact on the communication frequency, will the mobile company have further measures next? The staff of Hangzhou Mobile said that they would check out the situation after work on Monday and give further answers.
Later, the reporter from Qian Bao came to Hangzhou Yinhu Experimental School. The campus has a beautiful environment and first-class facilities. The school security told reporters that because it was Sunday, the school did not go to school normally. The reporter from Qian Bao contacted Teacher Zhao, director of the Audio-visual Education Center of Hangzhou Yinhu Experimental Middle School. Teacher Zhao said that the school’s cell phone jammer have been installed for a period of time, mainly to prevent school students from playing with mobile phones at night. “The jammers are activated between 10 pm and 4 am the next day and are currently in normal use."
As for the installation of cell phone jammer, do I need to file with the local radio management department? Teacher Zhao said that the school was not responsible for the installation of this set of equipment, so the specific process is not clear. It is recommended that the reporter consult the local radio management department. In addition, the reporter also asked Teacher Zhao whether cell phone signal jammers would affect the lives of surrounding residents? Teacher Zhao said that so far, there has been no reports from nearby residents about interference outside the school.
Can schools install signal jammers? The reporter from Qian Bao consulted Cao Dan, director of the Hangzhou Radio Administration Bureau, on this issue. Director Cao clearly stated, "This is not allowed." "Jammers are a type of radio station. Except for the effects of mobile communication terminals and home WIFI transmitters. Except for radio stations with a very small range, all other radio stations need to be approved because they involve the use of frequencies.” Director Cao explained, “but so far, we have not approved any one in Hangzhou. Schools can use signal jammers."
At the scene, a reporter from Qianbao found that the Silver Lake Experimental School is nearly one kilometer away from Shijiayuan Garden. Is the coverage area of signal jammers so wide? In this regard, Director Cao said that it depends on specific parameters such as the Power and bandwidth of the signal jammer to determine how large its coverage area is. Because there is no parameter of the signal jammer installed by the school, the specific coverage area cannot be determined temporarily.
If users feel that the signal is affected, how should they respond? Director Cao said that under normal circumstances, users can report the situation to the frequency-using company, and the mobile phone signals are generally related to major mobile operators. The company will report this situation to the management department, and the management department will communicate with the school. "In fact, the school installed signal jammers in order to prevent students from using mobile phones. We have encountered it before. After communicating with the school, the school cooperated and actively stopped the use of jammers." Cao Dan said.
