SN EN 50083-3 : 2002

Foreword
1 Scope
    1.1 General
    1.2 Specific scope of this part
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 Linear distortion
    4.2 Non-linear distortion
    4.3 Automatic gain and slope control step response
    4.4 Noise figure
5 System performance
    5.1 General requirements
    5.2 Safety
    5.3 Electromagnetic compatibility (EMC)
    5.4 Frequency range
    5.5 Impedance and return loss
    5.6 Gain
    5.7 Flatness
    5.8 Test points
    5.9 Group delay
    5.10 Noise figure
    5.11 Non-linear distortion
    5.12 Automatic gain and slope control
    5.13 Hum modulation
    5.14 Power supply
    5.15 Environmental
    5.16 Marking
    5.17 Mean operating time between failure (MTBF)
Annex A (normative) Test carriers, levels and intermodulation
products
Annex B (normative) Checks on test equipment
Annex C (normative) Frequency allocation plan
Annex D (normative) Special national conditions
Annex E (informative) Measurement errors which occur due to
mismatched equipment
Figure 1 Measurement of return loss
Figure 2 Maximum error a for measurement of return loss
           using V.S.W.R. bridge with directivity
           D = 46 dB and 26 dB test port return loss
Figure 3 Basic arrangement of test equipment for evaluation
           of the ratio of signal to intrermodulation product
Figure 4 Connection of test equipment for the measurement of
           non-linear distortion by composite beat
Figure 5 Connection of test equipment for the measurement of
           composite cross-modulation
Figure 6 Carrier/hum ratio = 20 lgA/a(dB)
Figure 7 Test set-up for local-powered objects
Figure 8 Test set-up for remote-powered objects
Figure 9 Oscilloscope display
Figure 10 Measurement of AGC step response
Figure 11 Time constant Tc
Figure 12 Measurement of noise figure
Figures A.1, A.2 and A.3
Figure E.1 Error concerning return loss measurement
Figure E.2 Maximum ripple
Table 1 Return loss requirements for all equipment
Table 2 Correction factors where the modulation used is
          other than 100%
Table C.1
  

Covers cable networks for television and sound signals, together with interactive services, which include equipment, systems and installations.