I am using an analog camera with a DVR. I see a lot of noise in the video.

Please check the following image input related settings:

1. If noise occurs at a specific channel, check whether DVR input part has issues by changing the DVR input port.

2. Check if your installment consists of a mix use of NTSC and PAL cameras.

3. Check if the issue is from the line. To check the line, connect the camera with a portable monitor directly.
     to confirm if the issue is caused by the camera or the line.

4.Check if there are environmental influences such as wireless devices or base stations nearby.

If the issue persists, please visit the Contact Us page on our website for customer support. (Customer Support — Contact Us — Contact Us)