AVE VECA UTP Applications And Operation Manual
VECA UTP
Video Enhancer Compensator Amplifier
Applications and
Operation Manual
The VECA UTP is an inline device to pre-compensate for video degradation due
to long cables for coaxial cables and designed for the head end or camera end
installation. It also includes the passive filter for connection directly to UTP
CAT3, 4, 5,or 6 cabling. There are two controls on the VECA UTP, one for Enhancing and the other for Gain.
Installation
Connect the VECA UTP inline-with the video signal you wish to enhance. Adjust
the gain so the over all video level at the monitoring end is returned to 1 V P-P.
Then turn on the Enhance switch and adjust clockwise until the picture is improved to your satisfaction.
Gain
This control amplifies or attenuates the overall gain or video level of the signal.
This can recover attenuated signals due to long cable runs up to X2 video gain.
It can also attenuate the video gain if the video signal is too high or you turn up
enhance to maximum. Internally you can remove the jumper that terminates the
video input with 75 ohm to increase the gain if using cameras with 2VP-P video
output un-terminated. The video output is also terminated for stability in coaxial
wiring but this jumper can be removed for UTP wiring if the wire impedance is
low.
Enhance
This control improves the video picture to get high quality by rectifying the picture contour. Move the control clockwise to increase the high frequency component of the video signal to enhance the picture. Turning the control all the way
counter clockwise will attenuate the high frequency portion of the video for a
soft look.
Enhance On / Off
If this switch is in the “Off” position the enhancement circuitry is turned off and
the adjustment control makes no difference. In this position the user can adjust
the proper overall video level. In the “On” position the enhancement is enabled
and one can adjust for optimum enhancement.
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