CONTENTS

 1     Scope
 2     References
        2.1     Normative references
        2.2     Informative references
 3     Abbreviations and acronyms
 4     System clock and PCR measurements
       4.1      Reference model for system clock and PCR measurements
        4.2     Measurement descriptions
        4.3     Program Clock Reference – Frequency Offset (PCR_FO)
        4.4     Program Clock Reference – Drift Rate (PCR_DR)
        4.5     Program Clock Reference – Overall Jitter (PCR_OJ)
        4.6     Program Clock Reference – Accuracy (PCR_AC)
Appendix I – PCR-related measurements
        I.1        Introduction
        I.2        Limits
        I.3        Equations
       I.4      Mask
       I.5      Break frequencies
       I.6      Further implicit limitations
       I.7      Measurement procedures
                 I.7.1      PCR_Accuracy (PCR_AC)
                 I.7.2      PCR_drift_rate (PCR_DR)
                 I.7.3      PCR_frequency_offset (PCR_FO)
                 I.7.4      PCR_overall_jitter measurement
       I.8      Considerations on performing PCR measurements
       I.9      Choice of filters in PCR measurement
                 I.9.1      Why is there a choice?
                 I.9.2      Higher demarcation frequencies
                 I.9.3      Lower demarcation frequencies