moho 0 Posted February 29, 2020 I have 8 cameras, 2 of them have on the display (screen) horizontal flickering lines. Any idea what the cause is? Here is the video of the flickering horizontal lines: https://app.box.com/s/tiuxvi26e8x1eze5e44hapvm3as9i37v Share this post Link to post Share on other sites
moho 0 Posted February 29, 2020 The cameras are Dahua BNC, with new power adapters and both are on the same side of the house. Share this post Link to post Share on other sites
tomcctv 190 Posted February 29, 2020 Hi. What type of cable have you used and the distance from camera to dvr. what size power supply are you using Share this post Link to post Share on other sites
moho 0 Posted March 1, 2020 3A,12v adapter, normale coax cable and the distance is cca 30m. It worked fine for 2 years. Share this post Link to post Share on other sites
tube tech 1 Posted March 3, 2020 what you have is a ground loop. how you cure it is an isolation transformer Share this post Link to post Share on other sites
moho 0 Posted March 7, 2020 Thank you for your answer. Would this be the proper solution? Share this post Link to post Share on other sites
moho 0 Posted March 7, 2020 Where to install the isolator, direct to the DVR or to the CCTV camera...I guess Equipment means the Camera and Cable is the DVR? Share this post Link to post Share on other sites
tube tech 1 Posted March 20, 2020 yes, cable is camera, equipment is DVR. it either works a miracle or has no effect. Share this post Link to post Share on other sites
harsha500 0 Posted April 25, 2020 On 2/29/2020 at 11:50 PM, moho said: I have 8 cameras, 2 of them have on the display (screen) horizontal flickering lines. Any idea what the cause is? Here is the video of the flickering horizontal lines: https://app.box.com/s/tiuxvi26e8x1eze5e44hapvm3as9i37v Hello Please see this article and check. https://www.cctvtechforum.com/cctv-camera-flickering-problem/ Share this post Link to post Share on other sites
tomcctv 190 Posted April 25, 2020 2 hours ago, harsha500 said: Hello Please see this article and check. https://www.cctvtechforum.com/cctv-camera-flickering-problem/ Harsha500 why redirect from this forum to your own and then your fix on your forum is the biggest load of crap some of your quotes ...... CAUSE: Another thing you can do to find out the cause of the security camera image flickering is to disconnect the coax at the camera output. Check if the flickering still continues. Or 1.CAUSE: The first thing that you will need to check is whether the video input to the monitor a loop through with a video output to drive for example video tape recorder. video tape recorder ???? Your 20 years behind And you want people to pay you with PayPal Reading your forum is like reading a joke book Share this post Link to post Share on other sites
