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problem noise horizontal lines

  1. M

    Hikvision Video interference

    hi All, i am looking for some advise. i recently installed Hikvision 7200 DVR with 3 x color vu 5mp cameras using Cat5e UTP cable with video baln on both ends. the issue i have is when i connect these cameras to single power supply unit (4 out) i get vertical lines on videos but when i connect...
  2. S

    Noise Problem

    Hello, I recently installed CCTV Hikvision HDTVI 1080p in one house and noticed some image noise and horizontal lines across a few areas on the screen. Does anybody know what is causing it? I also installed another one on another house and there is no problem whatsoever. It's the exact same...