Hall Research UV2-S - Manual (Page 9)

7
VGA + Power Over UTP
E. Apply a video source to the system and check for an image at each receiver,
then set the compensation Potentiometer (pot) for best possible image.
Start with the compensation pot fully CCW (least compensation), then slowly
turn it clockwise and check for the bleeding of left to right horizontal lines on the
screen. See Figure 3.
3.1 Important note regarding selecting the UTP Cable
First of all, UTP (unshielded) is preferred over STP (shielded) unless you are
running the cable very close to AC power lines, power transformers, or ballasts
of fluorescent lights, where EMI (electro-magnetic interference) can get into the
video if it is strong enough.
Secondly, for best results especially for distances of over 150 feet, it is highly
recommended to use a Zero-Skew Cat5 cable. (Part # CUTP-Z-1000).
Note dark line
bleeding as a dark line
to the right!
Note dark line has a
clean transition
Note dark line
bleeding as a white
line to the right!
Figure 3