Phabrix Qx IP Series - SDI a Vs System Reference; Decapsulated Vs System Reference; Input Measurement Offset; SDI Co-Timing [SDI Mode]

SDI A vs System Reference / Decapsulated vs System Reference
This section of the instrument displays the timing difference between the SDI A input signal (or Decapsulated
input - IP Mode) and the system reference the Qx is locked to. Both graphic and numeric (spatial and
temporal) values are presented by the instrument for this measurement. A relative timing bar tool dynamically
measures the timing of the input (white triangle) against the system reference (centrally fixed black vertical
crosshair).
The tool can be adjusted to display readings at frame scale, or zoom in all the way to a fraction of a line:
l Reference Timing Meter Range > [+/- 0.1 line, +/- 0.5 line, +/- 0.5 frame]
Input Measurement Offset
In addition to measurement of the input against absolute system reference, a system reference offset can
also be applied in the tool to measure against. The offset position is indicated on the relative timing bar tool
with a black triangle.
Offsets can be entered in temporal or spatial terms:
l Input Measurement Offset Type > [Time, Lines And Pixels]
Selecting ‘Time’ reveals a drop-down field where the timing offset can be set in microseconds:
l Input Measurement Offset Type > Time > Input Measurement Time Offset > [0.00, +/- 0.01, etc...]
Selecting ‘Lines And Pixels’ reveals drop-down fields where the offset can be set in these terms:
l Input Measurement Offset Type > Lines And Pixels > Input Measurement Line Offset > [0 to +/- (Total
no. of Lines for current standard -1)]
l Input Measurement Offset Type > Lines And Pixels >Input Measurement Pixel Offset > [0 to +/- (Total
no. of Pixels per Line for current standard -1)]
The input measurement offset can be set to the same position as the current ‘SDI In A’ (or ‘Decapsulated’ - IP
Mode) signal:
l Set Input Measurement Offset to current
The input measurement offset is removed by selecting in menu:
l Clear Input Measurement Offset
SDI Co-Timing [SDI Mode]
Many of the standards associated with UHDTV are a combination of signals to form the image plane.
Relative timing tools indicate that the quad or dual elements creating the single picture are correctly aligned
and compared with reference. Both graphic and numeric values are presented by the instrument for this
critical measurement. Any red text displayed indicates an out of specification measurement.
Note: The Timing instrument in this software release is locked to Input A.
Page 46 PHABRIX Qx User Manual