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samwise

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Posts posted by samwise


  1. Thanks guys. The 10 pair cable is buried underground so I really dont want to have to dig it up! Would doubling up wires cut down on crosstalk or would it just weaken the signal?

     

    Could it be related the a PSU problem? I have checked the power supply and its giving 12v properly on all wires and is more than rated for the job, amperage wise.


  2. Hi all,

     

    Installed a system for a family member consisting of 3 cameras in an outside shed for watching animals calving etc. However, I am getting very bad interference problems that I can not seem to fix. First time working with cameras so any help would be greatly appreciated!

     

    So the system has 3 cameras. (2 dome IR and 1 bodied). These are inside 2 sheds and wired back to a central box using RG59 shotgun cable. (Carrying video and 12v power).

     

    Inside this box I have connected the 12v and crimped BNC plugs onto the RG59 cable. I have connected these BNC plugs into standard cat5 baluns and wired into a 10pair external cable that runs 80m to the house.

     

    Inside the house I have put baluns onto the cable and attached into DVR.

     

    On the monitor inside when viewing any camera I can see the images from the other cameras strobing across the screen. Looking online I can see what is refereed to as crossbleed or ghosting.

     

    Hope the picture below makes sense.

     

    cctv.thumb.jpg.2445354793e355cefec72f39943dc976.jpg

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