What is the purpose of the shark fin on the car roof?

[LaHope]

The functions of the shark fin on the car roof are as follows: 1. Intercepting radio waves: The car antenna intercepts high-frequency radio waves, enabling the reception of radio signals. 2. Releasing static electricity: It can discharge static electricity from the small tail, preventing people from getting shocked, as the antenna has the function of discharging static electricity. 3. Enhancing signals: In many remote areas where the signal is poor and radio reception is not ideal, this antenna can improve radio signal reception, providing a better listening experience. 4. Aerodynamic spoiler: While driving, it helps overcome air resistance, reducing interference on the car, which results in lower fuel consumption.