------------------------------- Physical Layer: Eye & Jitter --------------------------------
Ultra v2.0a User Guide
S-13
Where you wish to study jitter within a particular waveband, this can be readily determined by
first using the Jitter High-Pass Filter corresponding to the bottom of this band then using the filter
that corresponds to top of the band and comparing the traces produced. The wavebands that are
identified may provide a clue to the source of the jitter.
Note:
The rate at which the Jitter Waveform is updated depends on the technology used to display
this waveform. In particular,
the local UI on the HDMI output will update the Jitter Waveform at
a slower rate to one shown on a Remote (web-based) UI
. As a result, the same Jitter Waveform
displayed on the Remote UI and the Local UI could look very different.
Selecting the High-Pass Filter that is applied
The options on the Button Bar select the time base for the trace between
100ms and 10µs. Selecting
100ms
as the time base corresponds to selecting 10Hz as the lower bound of the pass-band:
selecting
10µs
as the time base corresponds to selecting 100kHz as the lower bound of the pass-
band.
To set the High-Pass Filter that is applied:
Select from the Button Bar the time base that corresponds to the required filter frequency.
Selecting the Vertical Gain
The
V Gain
option in the right-hand panel selects the scaling to be applied
to the vertical axis of the display between 0.25 and 10, defined to 6 decimal
places. The setting you make is immediately reflected in the graticule used
on the vertical axis of the display.
Selecting the Trace Colour
The
Colour
setting in the right-hand panel selects the colour used for the
waveform trace (out of
Cyan
,
Green or
White
).
S.3.6 Jitter Insertion
Jitter Insertion is a useful tool for testing the resilience of SDI connections. The
Ultra
therefore
allows you to add jitter to any SDI output from the
Ultra
whether generated by the internal Test
Signal Generator or fed through the Analyser/Converter.
The jitter is applied by configuring the SDI outputs within the Connections window to add jitter
at a chosen level and frequency. For further details, see Section G.
Summary of Contents for Ultra 4K Tool Box
Page 1: ...Ultra 4K Tool Box User Guide Version 2 0a August 2015...
Page 8: ...General Ultra v2 0a User Guide...
Page 50: ...General Automated Control Ultra v2 0a User Guide C 6...
Page 52: ...Conversion Facilities Ultra v2 0a User Guide...
Page 62: ...Signal Analysis Ultra v2 0a User Guide...
Page 96: ...Signal Analysis Status Ultra v2 0a User Guide O 4...
Page 98: ...Physical Layer Analysis Ultra v2 0a User Guide...
Page 112: ...Physical Layer Eye Jitter Ultra v2 0a User Guide S 14...
Page 118: ...Generator Ultra v2 0a User Guide...
Page 134: ...Generator Creating Test Patterns W 8 Ultra v2 0a User Guide...
Page 139: ...Ultra v2 0a User Guide...
