On the morning of December 23, the Radio Management Office of Yangzhou Municipal Bureau of Industry and Information Technology received a complaint that the remote control of the vehicle near the Yangzhou Urban Planning and Design Institute failed in a large area, which seriously affected the normal travel of surrounding personnel. After receiving the complaint, the technical staff of the municipal monitoring station was immediately sent to the interference area for monitoring and investigation.
On-site monitoring found that an abnormal signal was found at the frequency point of 433.9MHz, the signal size reached 40dB, and after testing, analysis and judgment, it was confirmed that the abnormal signal interfered with the car remote control to lock the vehicle. The monitoring personnel immediately tested the direction of the signal and found that the communication room on the 1st floor of the unit was found. The technician, accompanied by the staff, entered the communication room and found a suspicious device. After cutting off the power of the device, the interference disappears, and after testing, the car remote control can be used normally.
According to the on-site staff, the equipment is its unit access control remote control, used to control the door switch, due to the long service life, equipment failure, resulting in abnormal launch, resulting in the car remote control interference event.
Over the past year, the city's radio management agency has monitored and investigated a number of unknown interference signals, effectively maintaining the order of air waves in Yangcheng. (Courtesy of Radio Monitoring Station)
【Source: Yangzhou Bureau of Industry and Information Technology_Industry and Information Technology News】