Re: CCTV Video issues

["Doug" <not@xxxxxxxx>]

Try powering the domes from individual "wall wart" power supplies or
grouping them on a couple of different Altronix supplies instead of a single
power supply, I've seen numerous problems with inexpensive 12vdc cameras and
DVRs when they are all powered from the same power supply, especially when
using cat 5 and passive baluns.

Doug

--

"S. Smith" <ChaosLogicXIII@xxxxxxxxx> wrote in message
news:1168659847.562911.156810@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> It's a big job... so we figured we'd do it right, but when everything
> was plugged in, it was so wrong.
>
> We ran everything in CAT5E and used passive baluns to make the
> connections.  Funny thing, the longest runs went outside of the
> building to "box cameras". They look great!  But the domes inside
> suffer from all kinds of distortion.  Even the closest camera at a mere
> 30ft!  We're powering them all from a 12VDC Altronix power supply.
>
> My first thought was interference caused by electrical cables or
> flourecent lighting.  But the outside cams take the same path as the
> domes without side effects.  This leads me to believe that there may be
> a power issue.  I'm wondering if the dome cameras don't have the "umph"
> to push the signal back to the DVR cleanly.  Suggestions?
>
> Lastly, I'm looking for a portable meter to measure video strength but
> I don't know what it's called to even begin searching.  Help?!
>
> Thanks!
>