In the era of rapid development of high-definition and ultra-high-definition display technology, 4K and 8K resolutions are gradually entering people's daily lives. Whether it's ultra-large-sized TVs, VR headsets, high-end medical imaging systems, or car-mounted central control screens, their picture quality performance cannot be separated from the support of high-performance signal cables. Among many cable products, **the extremely thin coaxial cable (Micro Coaxial Cable)**, with its thin, soft, strong anti-interference ability, and high-speed transmission characteristics, has become the preferred connection solution for high-end display equipment. So here's the question——can the extremely thin coaxial cable really transmit 4K/8K high-definition signals? Let's take a look together.
What is high-definition signal?
So-called "high-definition signal" refers to video/audio signals with high resolution, high frame rate, and high color depth. Compared with traditional standard-definition signals, high-definition signals have clearer pictures, richer details, and more realistic colors.
The current mainstream standards include:
4K ultra-high-definition: 3840 × 2160 pixels
8K ultra high-definition: 7680 × 4320 pixels
In addition, high-definition signals usually come with higher frame rates (such as 60Hz, 120Hz) and higher color depths (10bit/12bit), which put higher requirements on the transmission bandwidth of cables.
Illustration:
4K@60Hz video signal data rate is about 12Gbps
• 8K@60Hz video signal data rate can reach up to 48Gbps
Therefore, in order to stably transmit signals with such high speed and massive data, cables must have high bandwidth, strong anti-interference capability, and excellent signal integrity.
Can a very thin coaxial cable transmit 4K/8K high-definition signals?
Absolutely, and performed wonderfully.
High bandwidth supports ultra-high-definition signal transmission
The data rate of a 4K@60Hz signal is approximately 12Gbps, while an 8K@60Hz signal reaches as high as 48Gbps. Extremely thin coaxial cables usually have a frequency range of 6GHz to 12GHz, even higher, which is sufficient to meet the transmission needs of 4K/8K ultra-high-definition video.
Strong shielding structure ensures signal stability
Extremely thin coaxial cables usually adopt tin-plated copper braid or aluminum foil + braid double shielding structure, which can effectively resist external electromagnetic interference (EMI), reduce signal distortion, screen flickering, and screen flashing problems, ensuring stable and clear picture quality.
Low attenuation characteristic, more efficient for short-distance transmission
Within the application distance of 0.5m to 3m, ultra-thin coaxial cables can maintain extremely low signal loss, ensuring smooth and delay-free transmission of 4K/8K images.
Three, precautions for using ultra-fine coaxial cables to transmit high-definition signals
Although ultra-fine coaxial cables have excellent performance, the following points should still be paid attention to in actual design and assembly:
Line length control: Ultra-high-definition signals are sensitive to transmission distance, and it is recommended to use them within **≤3 meters** for the best effect.
High precision in welding technology: Due to the thinness of the conductor, high precision equipment must be used for terminal welding to ensure signal integrity.
Model selection matching: The cable model with the corresponding frequency level should be selected according to the actual transmission bandwidth requirements (4K or 8K).
Micro coaxial cable, with its high-frequency bandwidth, excellent anti-interference ability, low signal loss, and flexible design, is fully capable of handling the task of 4K/8K high-definition signal transmission. It is not only an ideal choice for internal wiring of ultra-high-definition display devices but is also becoming an indispensable key connection solution in high-end electronic fields such as VR, vehicle imaging, and medical equipment.
I am Kunshan Jie Kang Fu Precision Electronics, focusing on the design and customization of high-speed signal cables and ultra-fine coaxial cables for a long time. We are committed to providing stable and reliable high-speed interconnect solutions for our customers. If you have any related needs or want to learn more, please contact: Manager Zhang.
18913228573（WeChat number）。
