Need Help (Horizontal Line with analogue camera)

[Walker]

Hello everyone. My English is bad and I use google translate. I have a problem. Can you help me? I have a ahd system. There are haikon dvr and 2 cameras. I have no problem with 1 camera attached. There is a problem with 2 cameras attached. This is in a slow loop from top to bottom. What is the problem?

I changed bnc connectors

I changed the cables

I am using Dahua PFM 791 isolator


(White Thick Line problem)



4 and 8 seconds.

 

[Phil]

Hi, I'm afraid that as we don't sell analogue cameras I'm out of touch on these issues.
Hum bars normally roll (move down the screen from top to bottom), and would be cured by an isolator.
Typically such issues are with either cabling or grounding.
Perhaps test it with the camera nearer to your recorder and using a short bought cable to see whether that resolves it.

Others may be able to offer better advice on analogue camera systems ...

 

[Walker]

Thank you. No problem with short cable. There is no grounding in my house.

 

[Walker]

Up

 

[Walker]

Wtf.