PC (VGA) & HD (YPbPr) AV over Twisted-Pair Receivers
9
•
In adjustment-mode, all 3 LEDs on the unit will be turned
on.
•
The UP or DOWN buttons can now be used to adjust the
high frequency (HF) compensation up or down until the
video no longer looks smeared (see figure below).
•
Pressing both the UP & DOWN buttons together resets
the current adjustment back to zero. This is a quick way if
you want to start over.
•
To exit the adjustment mode at any time, press the
SEL
button (the unit also has a built-in timeout to exit this
mode).
Figure 4 - Typical test patterns used for adjusting compensation
Figure 5 - Effect of adjustment on the smearing
3.3 Advanced Adjustment (CATx AWG)
The URA automatically equalizes the brightness of the video as
the smearing is reduced. This automatic adjustment is based on
the assumption that typical 24 AWG CATx cable is being used.
When using 23 AWG CATx cable, then when the smearing is
minimized, your image may be brighter than normal. In many
installations, this is not critical and requires no adjustment;
