BS EN 61603-8-1:2004

1 Scope
2 Normative references
3 Terms, definitions and abbreviations
4 System description
   4.1 General
   4.2 Area of application
   4.3 Band allocation
5 General characteristics
   5.1 Environment conditions for operation
   5.2 Partition of functions between elements of the systems
6 Specific requirements
   6.1 Block diagram
   6.2 Input and output
   6.3 Carrier
   6.4 Sub-carrier
   6.5 Channel allocation
   6.6 Block structure
   6.7 Source stream
   6.8 Transmission stream
   6.9 Modulation
7 Characteristics and measurements
   7.1 Test conditions
   7.2 Location
   7.3 Transmitting distance and directivity
   7.4 Spurious level
   7.5 Accuracy of transmission-check frequency
8 Marking and contents of specifications
   8.1 Marking
   8.2 Contents of specifications
Annex A (normative) Application of the transmission systems
        for digital audio and related signals using infrared
        radiation in the consumer audio mode
Annex B (normative) Application of the transmission systems
        for digital audio and related signals using infrared
        radiation in the professional audio mode
Annex ZA (normative) Normative references to international
         publications with their corresponding European
         publications
Figures
Tables

Defines the characteristics and measuring methods for digital audio signal transmission systems using infrared radiation with sub-carrier of the frequency ranges 3 MHz to 6 MHz.

IEC 61603-8-1:2003 specifies the characteristics and measuring methods for digital audio signal transmission systems using infrared radiation with sub-carrier of the frequency ranges 3 MHz to 6 MHz. It describes systems with different economic uses of the available bandwidth in order to obtain minimum interference and maximum compatibility. It replaces 6.8.3 of IEC 61603-2. This bilingual version, published in 2011-04, corresponds to the English version.