Zhengzhou Meteorological Bureau weather radar by unknown signals continue to interfere with the normal work, to the upcoming Yellow River flood season weather forecasting work brings great potential problems.

Recently, Shenzhen Baoan Airport near the channel repeatedly found flights reported GPS loss failure, the relevant departments organized the airport near the channel GPS frequency abnormal use of mapping, through the preliminary investigation found Chang'an New Century Yiju around the existence of abnormal GPS signal emission phenomenon.

Through Zhenjiang monitoring station comrades monitoring the radio frequency found that the 91.13MHz frequency broadcast content is false and vulgar, filled with a large number of drug marketing, pornography and other illegal advertising, easy to make the masses deceived, by checking the approval of the radio station, found that 91.13MHz has not been approved, there is a "black radio" nature.

Through the Wenzhou monitoring station comrades monitored the use of 1.4G frequency, but did not do the frequency registration, belong to the illegal use of the frequency.

A terminal area in Dongguan City, which uses 2.4GHz frequency signals to carry operation scheduling, has recently been subject to strong external interference signals leading to the inability to use normal scheduling operations, resulting in a large number of delays in carrying out work.