Jammers contribute to education

How does that interfere with mobile communications?

Such as the teacher in class, and outside the square was dancing square dance, put a lot of music. Because of the same frequency, these noises will cause the teacher to speak unclearly. If the student can not understand clearly, the signal jammer will influence the communication signal through a similar process.

According to reports, in our side because of the use of mobile communication cellphone jammer caused by poor mobile communication is more common. This is caused by the use of compliance units inadvertently, but also caused by illegal use. According to Guizhou Province Radio Authority Supervision and Inspection Department researcher Xu Preston introduction, set the use of mobile communication jammers, need to apply for approval and filing in accordance with state regulations. Inadvertent use of these compliance units caused by interference is common in the installation of improper location, or commissioning of the technical parameters of unreasonable, such as transmitting power is too large, which affect the public's mobile communications.

Obviously the cell phone signal is full of cells, the public can not dial out, but also can not get in ... ... Ezhou City, China Education Bureau said the day before yesterday, because the two secondary schools in the midterm exam without the use of cell phone jammer gsm, resulting in more than 10,000 cell phone users affected , The council has ordered the school to suspend its use.

On the 9th, the reporter moved in Ezhou City. Unicom learned that due to the fact that two middle schools in the country set up sources of cell phone interference, many cell phone users have caused the above situation and triggered many complaints. Ezhou Mobile Company Operations and Maintenance Department responsible person said on the 19th and 20th, the company received complaints from cell phone users and found that more than 10,000 cell phone communication failure, immediately sent a technical expert to bring the spectrum analyzer to the scene to test, confirmed that the two local high schools Set the phone interference source - "Mobile Communications Shielding" (also known as "mobile communication jammers") due. The official said that installing jammers around the examination room can effectively prevent candidates from using their mobile phones to cheat, but at the same time it will also bring harm to people around them who normally use mobile phones.

http://www.nairaland.com/4223588/what-jammer-future-military

http://www.girlscene.nl/blog/58260/jammer_and_future_military