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flourescent interference
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Night Hawk
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June 1, 2014 - 10:38 am
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We are installing our first HD-CVI system indoors and it looks like the fluorescent lights are giving the image some subtle revolving lines. We ran all coax for these cameras through a drop ceiling, so I don’t think the problem is coming from the wiring. There are quite a few lights in the area that where we are installing the cameras. Is anybody else having this issue?  It seems that the lines are less visible during playback.

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Jose Malave
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June 2, 2014 - 9:18 am
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Are any of the cables going over a Ballast? I have seen this with Analog cameras.

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Dan Maresca
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June 2, 2014 - 3:32 pm
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I have seen the issue before. Some cameras are more susceptible to them but it is the lights. The gas rolling through the tube is actually what is showing up. I am willing to bet if you turn the lights off or watch playback at night time you will not see the lines.

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shockwave199
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June 2, 2014 - 10:06 pm
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Try keeping any coax at least 3 feet from fixtures up there. Put some space between them and see if the pictures clear up.

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Jose Malave
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June 3, 2014 - 9:22 am
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It could be both interference from a ballast being that the cables are close to it as well as the fluorescent lamps like Daniel Mentioned.

Here is a video of how the fluorescent lamp looks. To the naked eye you will not see this unless the lamp is on its last days of life. 

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Night Hawk
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June 4, 2014 - 1:28 pm
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It looks like the monitor we were using was giving off the rolling lines. Thanks for the input though. 

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Jose Malave
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June 4, 2014 - 1:33 pm
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I’m glad you got it resolved. 

 Jose Malave - IT Director| Toll Free: 866-573-8878 | E-mail: support@securitycameraking.com

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