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Performing Transport Stream Analysis
11.1. Introduction to the ASI analyzer
The HD PRO TAB is equipped with an embedded Transport Stream Analyzer, providing the full
ETR101290 coverage and Template monitoring.
The ETR101290 provides guidelines for measurement in Digital Video Broadcasting satellite,
cable and terrestrial and related digital television systems by defining a number of
measurement techniques in such detail that the results are actually comparable as long as the
measurement is carried out in compliance with the given definitions.
The meter executes the analysis on a Transport Stream either demodulated from one of the RF
inputs, injected via the ASI in connector or received via the GbE interface*. All the
measurements described in the next paragraphs can be sent to an external USB 2.0 device
connected to the USB-A port to be saved for future reference.
(*This function requires a specific hardware option and APP).
11.2. Transport Stream Template monitoring
To start the analysis function, the user should touch the screen over the
ASI ANALYZER
icon (or move the selector over the icon by rotating the encoder). The following screen
appears:
The page has three main sections:
1. Transport Stream basic parameters:
in this section the meter provides the measurement of
the Transport Stream total bitrate, the Stuffing rate and the number of detected services.
2. Services list:
after decoding the SI tables, the meter lists here the name and the bitrate of all
detected services, in the order declared in the PAT.
3. Service Composition:
for each listed service the meter specifies its content, listing the
composing PIDs with
stream_type
information and bitrate. Scrolling the services list (2) will
automatically refresh this box with the information of the corresponding service.
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