The car antenna is also called the car antenna. Generally, the antenna on the car is used for the radio and radio on the car. It can be divided into the built-in antenna and the external antenna of the car. However, there are other antennas installed in the car according to different purposes. If the bus has a DVB-T antenna, the car TV antenna. Logistics and taxis are also equipped with GSM antennas and GPS satellite antennas. Radio and radio antennas are mainly AM/FM antennas, soft PCB digital antennas, AM/FM/TV antennas, etc. Depending on the function and purpose, the frequency of the antenna used is also different.
Car antenna of Contents
Structural classification
There are shortened, quarter-wavelength, mid-inductance, five-eighth-wavelength, and double-half-wavelength antennas in the vehicle antenna structure. In theory, their efficiency increases in turn. The length also increases sequentially.
Functional classification
A small car antenna has multiple functions such as digital broadcasting, mobile TV, GPS navigation and language recognition, and has applied for 10 national invention patents. It is used to receive and strengthen the radio signal. At present, the signal in most areas of our country is very weak, and the car needs an external antenna, which is of great help in areas where the signal is unstable.
The car antenna is an electrostatic discharger, which mainly discharges the static electricity accumulated in the car shell during driving to protect the safety of the occupants and the car circuit.
A car antenna refers to a mobile communication antenna designed to be installed on a vehicle, the most common being a sucker antenna. Since the suction cup antenna is easy to install and place, the suction cup antenna is often used instead of the base antenna in some simple station setting occasions. Take good care of it.
By Type:
1. Car TV Antenna
2, car radio antenna
3. GPS vehicle antenna
4. Automobile anti-static antenna
5. Auto telescopic antenna
By installation form:
1. Paste type
2. Suction cup
3. Plug-in type
4. Thread
5. Suction roof
6, paste glass
7. Card edge