![]() Other indicators will alert the operator to a pending fault if the values start to come close to the system’s limits. The results are displayed on screen as either pass or fail indicators or, in the case of timing, with the use of a scale showing where the parameter’s result is in relation to its maximum allowed value. The tests boil down to a series of tests where different parameters are monitored and measured in either frequency of occurrence or timing variation. ![]() The display of information may change and additional tests may be provided, but there is a commonality between all stream analyzers based on the TR 101 290 document, which is available from the DVB Group Web site. The tests are intended for continuous or periodic monitoring of the TS while in operation they are designed to check the integrity of the TS with the aim to provide a check of the most important elements of the stream. The technical report TR 101 290 entitled “Measurement Guidelines for DVB Systems” is the basis for nearly all transport or MPEG stream analyzers. ![]() Most, if not all, stream analyzers incorporate these tests to provide a common set of measurements. The DVB Group has prepared a technical report (TR) for monitoring the TS, which covers a number of faults from the most critical to the least critical.
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