General Operation
TVM Series Installation and Operation Handbook 83
Copyright © 2008, Harris Corporation
Table 3-35. Description of Timing Display Diagram
Field
Identifier
Field Information Nomenclature
1 Selected reference Displays the selected reference as REF: X where X is A, B,
C, D, EXT BB, or EXT TRI; the REF is selected in the
TIMING pane menu
2 Test Indicates the input that is being measured, against the
Selected Reference in Field Identifier 1; also displays the
Selected Reference’s Line Rate/Frame Rate [Ex:
1080i/59.94]; selected in the VIDEO FORMAT > VIDEO A
through D CONFIGURE menu
3 VERT (Vertical ) Displays the Vertical Error Measurement as VERT: xxx
Line(s), where xxx is the measured difference between the
reference and the test input alignment of the vertical timing
(sync/TRS) in lines
4 HORZ (Horizontal) Displays the Horizontal Error Measurement as HORZ: yy.yyy
μs, where yy.yyy is the measured difference between the
reference and the test input alignment of the horizontal timing
(sync/TRS)
5 Input Displays user-configurable source IDs for input and routers
6 Vertical scale Displayed as V: 1Line/DIV
7 Horizontal scale Displayed as H: X, where X is the number with μs/DIV for
analog, SD, and HD formats
8 REF OFFSET Displays that the zero point of the timing measurements are
offset from the REF selection by xx lines yy.yyy μs
9 Timing Graticule Shows the timing graticules, cursors, and labels
When a signal is processed, there is the potential for it to be delayed with respect to a
reference signal. The Analog/Digital timing display is used to indicate when a video
input is deviating in time from the reference. See “Reference Selection” on page 85 for
more information on reference selection.
REF (Reference), located in the center of the timing display, indicates the
reference-timing point for the type of signal being monitored. REF is green when the
line and µs (microseconds) cursors are all aligned. As the signal falls out of timing
alignment, the line and the µs cursors change color when it moves from REF. When
this occurs, the REF turns red. Each hash mark represents a vertical line (top scale) and
1µs (bottom scale). Once the line or µs cursors are at the edge of the display, arrows
will appear to the right or left of the timing line.
NOTE: The Timing Display alignment accuracy is ±280 ns.
The bottom of the Timing display contains the following information:
• REF – The selected reference input that represents the REF line in the Timing
display (EXT REF, INPUT A, B, C, D, LTC).
• TEST – The selected input (A, B, C, or D) that is being monitored.
• VERTICAL – The offset line in full-video lines between the reference and the
displayed video.
• HORIZONTAL – The offset time in microseconds between the reference and the
displayed video. Horizontal can be yellow at 0 µs. It displays the minimum scale
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