Measurement Functions
MTD200 MPEG Test Decoder User Manual
2–17
SI_repetition_error (3rd priority)
The DVB standard (ETR211) prescribes minimum and maximum intervals for
the repetition of individual packets and has complete tables containing service
information (SI). See Table 2–2. These values are preset in the MPEG test
decoder, but each value can be modified according to individual requirements in
the Monitoring/Limits menu. Refer to MONITORING / LIMITS Menu on
page 4–15.
Table 2–2: Repetition rates for service information according to DVB
Service information
Maximum interval
(complete table)
Minimum interval
(individual sections)
PAT
0.5 s
25 ms
CAT
0.5 s
1
25 ms
1
PMT
0.5 s
25 ms
NIT
10 s
25 ms
SDT
2 s
2
25 ms
BAT
10 s
1
25 ms
1
EIT
2 s
2
25 ms
RST
—
25 ms
TDT
30 s
25 ms
TOT
30 s
25 ms
1
If present.
2
For current transport stream multiplex.
In the DVB Measurement Guidelines (ETS 300 468), the preconditions for a
SI_repetition_error are set as follows:
SI_repetition_error is signaled if
time difference between SI tables is too long (*** UPPER DISTANCE)
or
time difference between SI sections is too short (*** LOWER DISTANCE)
The abbreviated designations in parentheses are the text displayed in the
monitoring report. The series of asterisks (***) is replaced by the abbreviation
used in the appropriate SI table (for example, NIT).
Summary of Contents for MTD200
Page 1: ...User Manual MTD200 MPEG Test Decoder 070 9951 00...
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Page 29: ...Introduction to Digital TV Transmission Technique 1 14 MTD200 MPEG Test Decoder User Manual...
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Page 167: ...Remote Control 5 70 MTD200 MPEG Test Decoder User Manual...
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Page 174: ...Maintenance and Checking 6 6 MTD200 MPEG Test Decoder User Manual...
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Page 204: ...Glossary Glossary 10 MTD200 MPEG Test Decoder User Manual...
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Page 209: ...Index Index 4 MTD200 MPEG Test Decoder User Manual...
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