Display Information
High-Pass Filter
The high-pass fi
lter bandwidth setting allows you to show only jitter terms above
the selected filter frequency. When you select a filter setting, depending on the
active input signal, you select the jitter measurement type (Timing, Alignment, or
neither, as defined by the SMPTE standard).
To choose the Jitter high-pass filter, use the Measurement pop-up menu and
choose one of the following settings for the Jitter HP Filter entry:
Setting
Description
Timing
Sets the detector high-pass filter to 10 Hz. T his is the correct value for
measuring timing jitter for both SD and HD signals.
Align
Sets the detector high-pass filter to 1 kHz, as specified by SMTPE, for SD
signals; and to 100 kHz for HD signals. These are the correct values for
measuring alignment jitter.
10 Hz, 100 Hz,
1kHz,10kHz,
100 kHz
Sets the detector high-pass filter to the selected value.
NOTE. F
or instructions on how to take jitter measurements, see Monitoring the
SDI Physical Layer. (See page 101.)
WFM8200 and WFM8300 Waveform Monitors 59
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