Due to the age of use, some people who have CCTV have experienced the same incident, namely CCTV blurry or ghosting. The causes vary from loose connections to faulty tools. This can usually occur due to improper installation. For example, installing a camera that doesn't use a conduit pipe and a junction box (duradus) as shown below.
the effect will not be seen in a short period of time, the causes can be overcome in this following 3 steps!
Here are 3 steps to fix a blurry or shaded CCTV camera
1. Make sure the power supply voltage, the result is the power supply (adapter) Ok.!
2. Fixed the BNC connector connection on the back of the DVR, the picture is still broken!
3. Repairing the BNC connector connection on the camera, found a rusty connector because it didn't use duradus and a cable that was exposed in an open room had to be replaced because it was brittle and dry. Finally, we replaced the brittle cable and added a junction box (duradus), the image is immediately clear as below.
*Every process described is not as easy as when done in the field. Consult a professional