Students are not allowed to play with mobile phones at school. Why are nearby residents greatly affected?

In order to prevent students from playing mobile phones at night

A school in Fuyang installed a signal shielding instrument.

Residents 800 meters away feel that the cell phone signal is affected; The management department said that the installation needs approval.

Shijiayuan is located 800 meters east of Yinhu Experimental School, belonging to the relocated housing community. Yesterday at noon, the media came to the community. The media took out their mobile phones, and the system showed full signals, making phone calls and surfing the Internet were smooth. The media randomly asked more than a dozen households, and most of them said that the cell phone signal at home was not bad. A few residents near mountains and low floors occasionally encounter poor cell phone signal.

Aunt Shi, who lives in Building 3, South District of Shijiayuan, told the media that she had just stayed for more than half a month. "It is not particularly frequent to use a mobile phone at home. However, two nights ago, I invited guests from my family. The guest complained that the cell phone signal was poor, and 4G became 2G, so the phone could not be dialed. Finally, I can only take it to make a phone call outdoors. I don't know why.

Manager He, the property manager of Shijiayuan Garden Community, told the media that the community began to hand over the house at the beginning of this year, and there are currently 74 households staying. "At present, in terms of management, we have not received any complaints from residents about poor cell phone signal."

Are there any residents in other communities who report abnormal signals? Is the interference of signal shielding instrument serious in the community? If the signal shielding instrument does affect the communication frequency, will the mobile company take further measures next? The staff of Hangzhou Mobile said that they would know the situation after going to work on Monday and make further reply.

School response:

Shielding instrument is only used normally at night.

Subsequently, the media came to Hangzhou Yinhu Experimental School. The campus environment is beautiful and the facilities are first-class. The school security guard told the media that because it was Sunday, the school did not have normal classes.

The media contacted Mr. Zhao, director of the Audio-visual Education Center of Yinhu Experimental Middle School in Hangzhou. Teacher Zhao said that the school's mobile phone signal shielding device has been installed for some time, mainly to prevent students from playing mobile phones at night. "The shielding device is activated from 10 at night to 4 am the next day and is currently in normal use."

As for the installation of mobile phone signal shielding device, do I need to go to the local radio management department for filing? Teacher Zhao said that this set of equipment was not installed by the school, so the specific process is not clear. The reporter is advised to consult the local radio management department.

In addition, the media also asked Mr. Zhao whether the mobile phone signal shielding device would affect the lives of surrounding residents. Teacher Zhao said that there is no interference from nearby residents at present.

Management department:

Radio Authority: That's impossible.

Can schools install signal shielding devices? The media consulted the director of Hangzhou Radio Administration Bureau on this issue, and Director Cao made it clear that "this is impossible"

"Shielding instrument belongs to a radio station. Except for mobile communication terminals and home WIFI transmitters, 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 school in Hangzhou to use signal shielding devices."

At the scene, the media found that Yinhu Experimental School was nearly one kilometer away from Shijiayuan Garden. Is the coverage of signal shielding instrument so wide?

In this regard, Director Cao said that it depends on the specific parameters such as power and bandwidth of the signal shielding instrument to determine how big its coverage area is. Because there are no parameters of the signal shielding instrument installed in the school, it is impossible to determine the specific coverage for the time being.

If the user feels that the signal is affected, how to reflect it? Director Cao said that under normal circumstances, users can report the situation to frequency companies, and major mobile operators generally involve mobile phone signals. The user company will report this situation to the management department, and the management department will communicate with the school.

"In fact, in order to prevent students from using mobile phones, the school installed a signal shielding instrument. We've met before. After communicating with the school, the school cooperated and actively stopped using the shielding instrument. " Cao Dan said.