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 �

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 �

N.81

[Withdrawn] Definition for application to international videoconference transmissions �
This subject had only been identified and was left for further study. Then it was abandonned and the empty Recommendation was deleted

N.86

[Withdrawn] Line-up and service commissioning of international videoconference systems operating at transmission bit rates of 1544 and 2048 kbit/s �
Deleted because no system or equipment have implemented it during the last two study periods

N.90

[Withdrawn] Maintenance of international videoconference systems operating at transmission bit rates of 1544 and 2048 kbit/s �
Deleted because no system or equipment have implemented it during the last two study periods

N.Sup5.1

[Withdrawn] Requirements for the transmission of television signals over long distances �

N.Sup5.2

[Withdrawn] Setting-up and testing of international videoconference studios �