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  1. bokarinho

    Ground loop or noise due to EMI

    Hello and greetings to all, Recently i installed a Dahua DVR (XVR5116HS-I3) with Dahua Cameras (Dahua HAC-HDW1509T-A-LED-S2) and for some cameras i am getting horizontial lines that tremble on my output. I have used Dahua U/UTP Cat.5e Cable with Dahua Passive balun. I have a central power...