I have a camera which is connected to a dvr approx 75metres away. Its being powered locally as there is too much voltage drop with the power attached to the coax.
Some power supplies will result in a picture but there is obvious interference/image ghosting/horizontal lines/moving waviness. The interference never moves up or down the picture, it just stays in the same place. Some power supplies will give no signal at all, some will give a signal but only if plugged into a certain outlet. All the outlets work fine when they're powering cameras that are connected locally. The camera is receiving power in all cases as the IR lights come on. All the power supplies work fine when powering other cameras.
The coax is run underground beside a powerline connecting both areas however I've turned off the power and the problem is exactly the same.
I've replaced the bncs on both ends, no difference. The cable is solid copper core with copper braiding but no foil.
The problem is not the camera as I've tried others. Its either the cable, grounding issue etc. Any ideas what I could try? Replacing the cable is not possible due to how its fitted
Some power supplies will result in a picture but there is obvious interference/image ghosting/horizontal lines/moving waviness. The interference never moves up or down the picture, it just stays in the same place. Some power supplies will give no signal at all, some will give a signal but only if plugged into a certain outlet. All the outlets work fine when they're powering cameras that are connected locally. The camera is receiving power in all cases as the IR lights come on. All the power supplies work fine when powering other cameras.
The coax is run underground beside a powerline connecting both areas however I've turned off the power and the problem is exactly the same.
I've replaced the bncs on both ends, no difference. The cable is solid copper core with copper braiding but no foil.
The problem is not the camera as I've tried others. Its either the cable, grounding issue etc. Any ideas what I could try? Replacing the cable is not possible due to how its fitted
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