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Features Descriptions M6100 Broadcast Satellite Modulator
12.7.1 TS Analyser Status Overview
The detection of the following MPEG errors status overview:
Note these Errors are defined in the following standard: TR101 290.
(The error explanations in this manual are kept short and intuitive.)
• All the errors trigger the corresponding alarm. These alarms are also displayed in
the in the alarm pane of the GUI.
• The TS analyser errors are associated with an interface alarm and they can be
used for redundancy purpose.
• Error 1.1: TS_sync_loss: absence of two or more SYNC bytes regularly spaced.
• Error 1.2: Sync_byte_error: the correct sync byte (0x47) does not appear after 188 or 204 bytes;
• Error 1.3 PAT_error: No valid PAT detected;
• Error 1.4 Continuity_count_error: This error is usually caused by a disordering of the packets, by
the loss of a packet or by the duplication of a packet;
• Error 2.1 Transport_error: A Transport_error_indicator flag is set in the TS-Header of a packet;
• Error 2.3a PCR_repetition_error: Time interval between two consecutive PCR values is more
than 40 ms;
• Error 2.3b PCR_discontinuity_indicator_error: The difference between two consecutive PCR
values (PCRi+1 – PCRi) is outside the range of 0...100 ms without the discontinuity_ indicator
set;
• Error 2.4 PCR_accuracy_error: PCR accuracy of a program is not within ±500 ns
The PCR_accuracy is measured using the MGF3 filter profile. Please refer to the
TR101 290 standard for more information on this filter profile.
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