busta9 0 Posted March 1, 2014 I am working on a diy project and looking for advice on how to eliminate video noise. Its a fairly simple setup that allows me to pan and rotate a mini bullet camera. I am using a multi conductor coax cable that is powering the two small 24Vdc motors along with a KPC-E190NU mini bullet cam. The picture on the monitor looks good but when the motors are running there is wavy lines that distort the picture. Only the video cable is shielded and the other conductors are not twisted pairs. What are the options/best design practices to eliminate video noise in this case? Thanks for your help Share this post Link to post Share on other sites
SunnyKim 2 Posted March 1, 2014 not enough power for running motor. Share this post Link to post Share on other sites
busta9 0 Posted March 1, 2014 They are powered from different power supplies. I use two 30 VAC doorbell transformers and one rectifier (28Vdc approx.) for the motors and the camera is powered using a computer power supply (400W). They are both powered using the same 120V supply. Does this information change your answer? Thanks for your reply Share this post Link to post Share on other sites
SunnyKim 2 Posted March 1, 2014 Beats me. But let me add. Different Source for Motor and Camera looks better scheme for noise shielding. But the thickness of cable may also be counted in. Electric Noises from Motor may creep into the image sensor on the camera board. If you have options to turn on 3D Noise Reduction on your camera or DVR side, please try. This option would be a temporal remedy. Share this post Link to post Share on other sites
