Re: CCTV Video issues

[<hapticz@xxxxxxxxxxxxx>]

30 feet is well below what i have done    120 feet.  most cams signal is abt
1vp-p, and input sensitivity at dvr or input on receivers usually is good
for sigs down to 100 mv or so.

distortion ((wavy side skew?) may mean the sync component of the video
signals is getting bad matched or even flipped during one of the balun
connections.

bad distortion usually means the reciver cannot find a comon sync to use.
frame rolling is als an indication.

as an aside, are the cams all same , ntsc or pal?



"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!
>