ITU-T-Empfehlungen N-Serie


Die N-Serie beschäftigt sich mit der Wartung internationaler Radioprogramm- und Fernsehübertragungssysteme.

International sound-programme transmission


N.1
Definitions for application to international sound-programme and television-sound transmission

N.2
Different types of sound-programme circuit

N.3
Control circuits

N.4
Definition and duration of the line-up period and the preparatory period

N.5
Sound-programme control, sub-control and send reference stations

N.10
Limits for the lining-up of international sound-programme links and connections

N.11
Essential transmission performance objectives for international sound-programme centres (ISPC)

N.12
Measurements to be made during the line-up period that precedes a sound-programme transmission

N.13
Measurements to be made by the broadcasting organizations during the preparatory period

N.15
Maximum permissible power during an international sound-programme transmission

N.16
Identification signal

N.17
Monitoring the transmission

N.18
Monitoring for charging purposes, releasing

N.21
Limits and procedures for the lining-up of a sound-programme circuit

N.23
Maintenance measurements to be made on international sound-programme circuits

International television transmission


N.51
Definitions for application to international television transmissions

N.52
Multiple destination television transmissions and coordination centres

N.54
Definition and duration of the line-up period and the preparatory period

N.55
Organization, responsibilities and functions of control and sub-control international television centres and control and sub-control stations for international television connections, links, circuits and circuit sections

N.60
Nominal amplitude of video signals at video interconnection points

N.61
Measurements to be made before the line-up period that precedes a television transmission

N.62
Tests to be made during the line-up period that precedes a television transmission

N.63
Test signals to be used by the broadcasting organizations during the preparatory period

N.64
Quality and impairment assessment

N.67
Monitoring television transmissions - Use of the field blanking interval

N.73
Maintenance of permanent international television circuits, links and connections

International videoconference transmission


N.81
[Withdrawn] Definition for application to international videoconference transmissions This subject has only been identified and requires further study

N.86
[Withdrawn] Line-up and service commissioning of international videoconference systems operating at transmission bit rates of 1544 and 2048 kbit/s

N.90
[Withdrawn] Maintenance of international videoconference systems operating at transmission bit rates of 1544 and 2048 kbit/s

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