HD-SDI has poor anti-interference ability, especially in environments with high-frequency radiation, such as mobile phones and wireless routers. Strong high-frequency wireless electromagnetic radiation interferes with HD-SDI, resulting in high bit error rate of video data. The image is abnormal, the screen is not displayed, and the image cannot be locked. HDCVI adopts low-frequency analog modulation technology, which avoids the interference of high-frequency wireless electromagnetic radiation from the essence of the technical principle. Even in a strong interference source environment, it can still ensure high-quality image transmission.
In the actual construction, HD-SDI has strict requirements on wiring environment selection and construction methods. The main performance is that the installed cables require high quality and are not allowed to be connected in the middle; the welding quality of the connecting terminals and the installation path are low radiation, etc. These put high demands on the quality of construction workers, construction costs, complexity of installation and maintenance, and line layout design. The HDCVI technology follows the construction requirements and routing specifications of the simulated standard definition, and the ordinary weak current construction personnel can quickly deploy the high-definition monitoring subsystem.