Tektronix MTM400 Manuale Utente Scaricare il pdf (Pagina 102)

Stream View

3-54 MTM400 MPEG Transport Stream Monitor User Manual

PCR Drift Rate (PCR_DR)

This Drift Rate graph shows the rate of change of PCR Frequency Offset, which is

often very small. It is calculated using PCR Frequency Offset measurements.

Figure 3-19: Stream view - PCR graph - PCR drift rate

The Maximum PCR Drift Rate can be adjusted for all PIDs as follows:

 Tests screen Î PCR Tests section Î PCR Drift Rate (PCR_DR)

parameter (right-click) Î Max PCR frequency drift rate.

For individual PIDs:

 PIDs screen Î Test: select PCR Drift Rate Î individual PID parameter

(right-click) Î Max PCR frequency drift rate.

 Right-click on the graph and set the limit for each PID.

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Tektronix MTM400 Manuale Utente Pagina 102