atcomsystems.ca/forum Forums Wiring - Telecom Carriers - Trunks & Services Security, Alarms and Paging ghosting on dvr/cctv

I have a 16 channel DVR that has 1 channel that has horizontal ghosting lines that move from bottom to top.

Looking for ideas on what causes this.

Here is what I know about the situation.

1. Problem stays with coax run, switching out camera or moving to a different port doesn't clear up the problem

2. camera is mounted 2 feet away from an exit sign (led bulbs) and 3 feet from a Wireless Access Point. Closest fluorescent bulb is about 10 feet away

3. Constant, night & day, although it is a low light area even in the daytime

4. Ends of coax (rg59 siamese cable) have been reterminated

5. Run is only 40 - 50 yards to DVR, ran in drop ceiling, not in close proximity to an electrical runs

Does anyone know what may be causing this & what I should try to correct this?

Thanks
John

I have had short runs do this in the past and used a ground loop isolator to clear it up. Might be worth a shot they are not to pricey.

something like this

Thanks Anthony,

I'm going to order one now, I'll let ya all know how it pans out

good luck the only other thing I ever used to correct something like that was an in line amp.

good luck the only other thing I ever used to correct something like that was an in line amp.

ditto anthonyh. I've experience problems like this before, ended up being cable nicked and contact steel strut inside the walls.