Do Electric Cars Also Interfere with The Signal?

A few years ago, the business personnel of the Dongying Radio Management Office used the monitoring equipment in their hands to investigate and solve the interference problem that had plagued the residents around Building 19, Dongcheng Mingyue Community, Dongying City, Shandong Province for many days.

Residents around Building 19 of Mingyue Community in Dongying City have encountered a strange thing: their cars and garages often cannot be locked or cannot be opened after being locked, which directly affects their daily work and life. They tried many methods, including replacing the remote-control battery, repairing the garage remote control, etc., but they did not solve the problem. At first, residents suspected that the nearby mobile communication base station was at fault. After contacting the relevant departments to shut down the base station equipment, the interference phenomenon still exists. Later, some residents thought it might be radio interference, so they called the radio management department for help.

After receiving the complaint, the technicians of the Dongying Radio Management Office immediately put down their work and rushed to the community with portable monitoring equipment. After learning about the situation, the technicians and the residents at the site monitored the surrounding electromagnetic environment. In less than half an hour, technicians found a strong signal at a certain frequency point, and after repeated direction finding, the interference signal was locked on an electric vehicle on site. The owner of the car was skeptical at first. When the car was driven away from a certain distance, the remote-control devices such as the car and the garage on the scene were all turned back to normal, and after the car was driven back, all the remote-control devices "failed" again. From this point of view, the electric vehicle is the "culprit" of interference.

According to the owner, the car has been purchased two months. The car is equipped with a remote-control device for locking the car and an anti-theft alarm system. The problem may lie in these two devices.

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