What does the antenna on the roof do?

1, the antenna baby on the top of the car is also called the car antenna, which is mainly used to receive external signals. Old drivers can listen to the radio in the car because there is a Teletubbies! There are also some special functions. The antenna baby on the police car is used to receive the special band information of the mobile station, especially the police.

2. In addition to receiving signals, the car antenna is also an electrostatic discharger, which mainly releases static electricity accumulated in the car shell to protect passengers' safety and car body circuits. In some high-end cars, the antenna has the aerodynamic effect of air turbulence. Some can even be used as antennas for car phones, which can enhance the signal strength very well.