GROUND LOOP!! interference isolator?

[HDC501 0]

I'm new to the surveillance thing and i have not had a problem in 2 years untill today

i put a camera HDC501 on a 20ft poll on my construction site

the camera worked fine out of the box but after setting everything up and going inside to plug it in to the dvr and monitor

i get the flickering, bars going up and down, and somethings the image going on and off when the bars distort the image bad enough.

its a metal pole and the camera is screwed into a mounting plate i wielded to the pole

the cable is pretty much a straight shot in to the office trailer window

basically the metal chassis of the camera is being mounted against the pole

might be the "ground" problem

 

i read about ground loop isolator that needs to go at the camera-in.... right? or wrong

the problem is that the cable is not an BNC cable but a 6 pin din cable!!!!

is something as simple as placing a block of wood between the camera mounting bracket and the metal plate/pole the solution

[shropna 0]

Just isolate the camera inside housing....

[HDC501 0]

don't quiet understand what you mean

[shropna 0]

don't quiet understand what you mean

Place "wood" between pole and camera

[CCTVCAVEMAN 0]

When you find the solution to this problem would you post it. I am interested to see how you fixed it.

Thanks

[HDC501 0]

i'll post it as soon as i can.

 

since the pole in not "in" the ground but tied to the warehouse

plus i have a antenna for a cb radio attached to it as well that's getting this popping static

i can only assume it is the ground interference

 

i'm just going to lift the pole and place a block of wood underneath that

and where it touches the warehouse duct tape the contact points

i don't know if im going about this all wrong but ill try to unground the pole

[rory 0]

If you have a plastic shop in the area you could get a small piece of 1/2 or 3/4" plastic in the shape of the camera bracket or just square, mount that to the pole then mount the camera bracket to that, short screws so they dont touch the pole. I had to do that with a couple cameras in the past. Whether or not it works in your case I cant say.

[HDC501 0]

Thanks for all the advice guys

 

what i ended up doing was placing a piece of wood under the poll and wrapping sheets of plastic around any contact

so far so good ill give it a few hours and see what happens

points

[rory 0]

I had another camera which was only getting lines at night, and it was not every night. It was close to some other low voltage cable (possibly even high voltage mixed up in there but the client denies that), which they had added over the years. I moved the camera down a few inches away from the other cable and that fixed the problem.