Adding Jitter To Pcrs - Tektronix MTX100B Quick Start User Manual

Adding Jitter to PCRs

The MTX100B provides the capability to add jitter to PCRs (Program Clock References). Adding jitter to PCRs allows you to
simulate transmission delay variations and to test the robustness of decoders under various conditions.
The jitter function adds jitter to the program_clock_reference_base value and the program_clock_reference_extension value
in the adaptation field of transport stream packets. You can use this function to modulate the data values of the PCRs away
from their correct values.
NOTE. When you use this function, be sure to set PCR/PTS/DTS Update Method in the Select Update Item dialog box
to Hardware.
Perform the following procedure to add jitter to PCRs:
1. Use the Icon cursor to select the PCR
item in the hierarchy display. If the Icon
cursor is not available, press the Menu
button to enable the Icon cursor.
2. Press the Num Pad/Select button to
open the PCR Inaccuracy dialog box.
MTX100B MPEG Recorder and Player
Procedures
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