AHD Camera Horizontal Lines on Screen

[cc16tv 0]

Hello, I would appreciate any advice and solution to my problem.

 

I have an AHD camera connected to an AHD DVR. I used a cat5 pure copper cable to connect the camera to the DVR. I used one twisted pair for video attached to the BNC and three twisted pair for power.

 

At first the picture was clear and sharp with no horizontal lines going up the screen. What had happened was I pushed the DVR into my TV cabinet and the video wires snapped off the BNC and the power supply to the camera blew.

 

I cut the end of the cat5 cable and redone the wiring to the BNC and power connectors however now the picture is grainy and horizontal lines keep rolling up the picture.

 

I connected the connection again but it made no difference. I am also using another power supply to the camera since the other one blew.

 

Any ideas? Thanks.

[tomcctv 190]

Hi what type of balun did you use.

[cc16tv 0]

Hi, thanks for replying back. The baluns I used are these:

 

http://www.ebay.co.uk/itm/CCTV-CAT5-Coax-Coaxial-Camera-BNC-Video-Balun-Cable-Connector-Adapter-Socket-/351867125849?var=&hash=item51ecea4059:m:m-ADz7vgPuQID1W_6enlK-w

 

Thanks.

[tomcctv 190]

Hi. That is your problem .... They are not baluns

 

You need baluns on both ends .... Something like these.

 

http://www.ebay.co.uk/itm/CCTV-VIDEO-BALUNS-BNC-CAT5-NO-TOOLS-REQUIRED-PASSIVE-1-PAIR-/281212355667?hash=item4179900453:g:6GMAAOxy3zNSmk52

[cc16tv 0]

Hi, thank you for the link to the correct baluns. So the one I have is the wrong one? Just a bit confused as it worked to start off with but now showing the horizontal lines and the picture is grainy.

 

I also used these power connectors:

 

http://www.ebay.co.uk/itm/12V-DC-Female-Male-Power-Balun-Connector-Adapter-Plug-Jack-Socket-For-CCTV-Cable-/351536734716?var=&hash=item51d938e1fc:m:mEoRAAESXOTYdRMb6N3Sd4w

 

Are these the right type? Not sure why one of the power supplies blew. Thank you for your help.

[cc16tv 0]

In addition to the above post, I would like your opinion on the following balun that connects to a RJ45:

 

http://www.ebay.co.uk/itm/2pcs-CCTV-Coax-BNC-Video-Power-Balun-Transceiver-to-CAT5e-6-RJ45-Connector-/151993813520?hash=item2363898a10:g:X-4AAOSwB4NWzX50

 

Will this connector give me the clear picture I am after? I have the crimping tool to connect the RJ45. The balun you suggested seems the most cost effective however it does not carry the power wires.

 

I am wondering if I should change the power connectors which I have with the RJ45 balun since I experienced a power supply blow to one of the camera power adaptors.

 

Will the picture quality be the same between the balun you suggested with the RJ45 balun connector? Thanks.

[tomcctv 190]

Hi. Baluns that carry power will give problems .... They only use 1 pair for power so no good for distance.

[cc16tv 0]

Hi, thank you for your advice throughout my set up of the cctv system. I will order the baluns you suggested.

 

Thanks again.