NBN EN 50083-7 : 96 AMD 1 2001

Foreword
1 Scope
  1.1 General
  1.2 Specific scope of this Part 7
2 Normative references
3 Terms, definitions, symbols and abbreviations
  3.1 Terms and definitions
  3.2 Symbols
  3.3 Abbreviations
4 Methods of measurement
  4.1 Mutual isolation between system outlets
  4.2 Amplitude response within a channel
  4.3 Chrominance-luminance gain and delay inequalities
  4.4 Non linear distortion
  4.5 Carrier to noise ratio
  4.6 Echoes
  4.7 Television and frequency modulation radio signal
       level
  4.8 Data echo rating and data delay inequality
  4.9 Interference in FM sound radio channels
  4.10 Signal level for digitally modulated signals
  4.11 Signal to noise ratio (S/N) for digitally
       modulated signals
5 Performance requirements
  5.1 Impedance
  5.2 Carrier levels at system outlets
  5.3 Mutual isolation between system outlets
  5.4 Frequency response within a television channel
       at any system outlet for PAL and SECAM signals
  5.5 Long term frequency stability of distributed
       carrier signals at any system outlet
  5.6 Random noise
  5.7 Interference to television channels
  5.8 Video baseband requirement
  5.9 Hum modulation of carriers in television channels
  5.10 FM sound radio: Additional performance requirements
  5.11 NICAM performance
Annex A (normative) Calibration of modulation depth
Annex B (normative) Equipment required - additional items
Annex C (normative) Preliminary checks on the measuring
                      equipment for carrier to noise ratio
Annex D (normative) Correction factors
Annex E (normative) Calibration of the measuring receiver
Annex F (informative) Bibliography
Annex G (informative) A-deviations
Annex H (normative) Correction factors for noise
Annex J (informative) Digital signal level and bandwidth
Annex K (informative) Power density method

Applicable to any cable network having a coaxial cable output and primarily intended for television and sound signals operating between about 30 MHz to 2 150 MHz. Describes basic methods for measuring the operational characteristics of cable networks having coaxial cable outputs in order to assess the performance of those networks and their performance limits.