Ram 1500 Telescopic Trasmettitore Broadband Fm Antenna
- Transportation:
- Ocean, Land, Air, Express, Others
- Port:
- Shenzhen, GuangZhou, HongKong
Quantity:
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Contact NowBasic Info
Basic Info
| Place of Origin: | China |
|---|---|
| Productivity: | 100000pcs/per month |
| Supply Ability: | 100000pcs/Per month |
| Payment Type: | L/C,T/T,Paypal,Others |
| Incoterm: | FOB,EXW,Express Delivery |
| Certificate: | CE FCC ROHS |
| HS Code: | 8517707090 |
| Transportation: | Ocean,Land,Air,Express,Others |
| Port: | Shenzhen,GuangZhou,HongKong |
Product Description
Product Description
When I was in go on road trip, someone was anxious to pull the roof antenna to the longest, thinking that more radio stations could be found in this way, but the noise continued. Is the longer the car antenna, the stronger the radio signal? The answer is not so.
The signal receiving effect of automobile Car Antenna is not simply determined by physical length. Just like an instrument can only play a beautiful melody in a specific range, the ability of an antenna to receive signals is closely related to its working frequency. Radio waves in different frequency bands correspond to different wavelengths. Only when the antenna length and wavelength form an appropriate ratio can efficient signal transmission be realized. At the same time, the vehicle environment also affects the signal quality in secret: shuttling through the city streets with high-rise buildings or driving in tunnels, the surrounding obstacles will reflect and absorb radio waves, and even if the antenna is longer, it is difficult to break through the "signal dilemma"; In addition, the metal material of the car body will form a shielding layer, which also requires the antenna design to adapt to it.
Nowadays, with the development of technology, car antennas have long since got rid of the thinking of "winning by strength". Engineers use advanced electromagnetic simulation technology to design and optimize the antenna precisely, so that the short shark fin antenna can not only take FM/AM radio reception into account, but also integrate GPS, 4G or even 5G signal reception functions to achieve stronger and more stable signal reception effect in a limited space.
In order to solve the problem of unstable radio signal, car radios are often equipped with retractable antennas. The common FM AM Antenna is mostly installed on the roof, where the vision is wide, there are few obstacles and the signal attenuation is low, which can create good conditions for signal reception. This kind of antenna is connected to the car body through a rotating hinge, so the owner can freely adjust the tilt angle according to the actual needs and flexibly adapt to different driving scenes.
In design, Car Radio Antenna with total length less than 200mm are more common. Although they are small in size, they can take into account the signal reception in AM and FM bands, which can not only ensure the radio to stably play news and music, but also provide communication support for car phones, realize diversified functions with exquisite structures, and play an efficient role in a limited space.
Why is the car roof antenna stretched to the longest, or is there a lot of noise and no more radio stations?
A: The signal receiving effect of the car antenna is not determined by a single physical length. The ability of the antenna to receive signals is closely related to the working frequency. Only when the antenna length and the wavelength of the corresponding radio wave form a proper ratio can the signal be transmitted efficiently. Simply stretching the antenna, if the frequency is not matched, can not enhance the signal, and may also introduce more noise.
Q: How to improve the signal reception of car antenna when driving in the city?
A: Because there are many obstacles in the urban environment, radio waves are easily disturbed. Try to select an open road section to receive signals; You can also choose an antenna designed for complex environment, or optimize the installation position of the vehicle antenna to reduce the influence of the metal shielding layer of the car body to improve signal reception.
Q: Do all types of car antennas follow the principle of the ratio of antenna length to wavelength?
A: Yes, no matter what type of car antenna, its signal reception essentially follows the principle that the antenna length and wavelength need to be adapted. Different types of antennas are only different in design, structure and applicable scenes, but this basic condition must be met in order to achieve efficient signal transmission.
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