video noise filter

Here is the video from the client to show us how the effect of he mentioned video noise.

How to solve the video noise?

The external input video is the video input from the camera to the monitor. If the video cable is not good, this phenomenon may occur.

Бынан тыш, this phenomenon can also be caused by the fact that the power supply of the camera and the power supply of the machine are not from the same ground (GND).

Ask the customer if the ground of the machine and the power supply of the camera are on the same circuit.

If so, it is recommended that the customer change the video input cable to a better one and a thicker shielded cable. Try it.

Another possibility is that the customer installed it in the car or tested it with a power adapter at home.

If you use a power adapter to test at home, the power adapter and poor filtering can also cause this phenomenon.

Ground loop video isolator, one of the best Video noise filter

Ground loop video isolator, also known as ground loop audio-video isolator, is mainly used to eliminate interference to CCTV video (or audio) signals caused by ground loop voltage. Ground loop/ground loop interference is an electrical interference phenomenon caused primarily by the different electrical potentials between the two ends of a video cable. Since the video cables select different video signal reference ground potentials, the AC current loop interference caused mainly occurs on the shielding layer of the video cable and the casing of the video equipment.

Normally, the voltage of the shielding layer is 0V. When the local loop/ground loop phenomenon exists, the level will fluctuate around 0V. In more serious cases, the video signal will be severely distorted and torn with horizontal stripes – mesh – Interference phenomena such as snowflakes. When the video signal transmission distance exceeds 100 метрға, it is easy to generate a high ground loop voltage. If the ground loop voltage is too high, the equipment may even be burned.

Single-channel video ground loop isolation anti-interference device, this device can calmly handle the input and output balanced audio or balanced video signals that need to be isolated. Шул уҡ ваҡытта., it also integrates a common mode interference filter to eliminate interference signals from the transmission cable. The converted unbalanced signal can be directly connected to the unbalanced input of audio and video.

It is often used in surveillance videos, home audio and video, computer rooms, recording studios, car reversing images, KTV, bars, car audio and video, һ. б.. Some image interference is caused by common interference, such as stripes, snowflake noise, horizontal stripes, image jitter, and A series of common ground disturbances such as webbing and image tearing.