BS 6513-2:1984

Section one. General
1.1 Scope
1.2 Definitions, designations and abbreviations
Section two. Methods of measurement applicable to both
television and f.m. sound radio signals
2.1 Mutual isolation between system outlets
2.2 Amplitude/frequency response within a channel
2.3 Single intermodulation product
2.4 Signal levels
2.5 Radiation from components
2.6 Carrier-to-noise ratio
Section three. Methods of measurement applicable to
television signals only
3.1 Chrominance-luminance gain and delay inequalities
3.2 Composite beat
3.3 Two signal cross-modulation
3.4 Hum modulation of carriers
3.5 Differential gain and phase
3.6 Echo rating
Appendices
A. Monitoring and assessment of system radiation
B. General information on non-linear distortion
C. Test carriers, levels and intermodulation products
D. Absorbing clamp and its application to
     measurement of radiated power
E. Stop filter
F. Cable connecting adaptors
G. Calibration of modulation depth
Tables
1. Correction factors where the modulation depth used
     is other than 100%
2. Residual carrier reduction factors
3. Test signal levels relative to reference level
Figures
1. Arrangement of test equipment for measurement of
     mutual isolation between system outlets
2. Arrangement of test equipment for measurement of
     frequency response within a channel
3. Interpretation of displays for measurement of
     frequency response within a channel
4. Basic arrangement of test equipment for evaluation
     of the ratio of signal to intermodulation product
5. Connections to input of system head end
6. Measurement of radiation, general set-up
7. Measurement of radiation, component with several
     outputs
8. Measurement of radiation, absorbing clamp method
9. Example of general set-up for measurement of
     radiation in the frequency range 30 MHz to 300 MHz
10. Example of radiation measurement set-up (frequency
     range 30 NHz to 300 NHz) for measurements on the
     input port of an active component
11. Radiation method without measurement cable
12. Radiation method with measurement cable
13. Example of radiation measurement set-up for
     frequency range 300 MHz to 1 GHz
14. Arrangement of test equipment for carrier-to-noise
     ratio equipment
15. Test signals employed for chrominance/luminance
     gain and delay inequality
16. Arrangement of test equipment for measurement of
     chrominance/luminance gain and delay inequality
17. Displayed pulses: chrominance low and lagging
18. Displayed pulses: chrominance high and leading
19. Connection of test equipment for measurement of
     non-linear distortion by composite beat
20. Weighting curve for 625-line PAL system I, C.W.
     interference with no special control
21. Measurement of two signal cross-modulation
22. Hum modulation envelope
23. Connection of equipment for measurement of hum
     modulation (d.c. method)
24. Calibrated potential divider
25. Stable variable d.c. source
26. Oscilloscope display
27. Connection of equipment for measurement of hum
     modulation (a.c. method)
28. Signal D2 for 625-line systems
29. Arrangements of test equipment for measurement of
     differential gain and phase
30. Example of the modified staircase waveform
31. Echo rating graticule
32. Arrangement of test equipment for measurement of
     echo rating
33. Example showing products formed when 2fa>fb
34. Examples of products formed when 2fa35. Products of the form fa +/- fb +/- fc
36. Example of measurement of interference power
     between 30 MHz and 300 MHz
37. Detail of absorbing clamp
38 Example of calibration curve of absorbing clamp
39. Calibration of absorbing clamp between 30 MHz and
     300 MHz
40. Stop filter
41. Adaptor for components with screwed clamp terminals
42. Adaptor for components with coaxial terminals
43. Calibration of modulation depth

Methods of measuring performance for downstream and upstream television signals and f.m. sound radio.

This Part of BS 6513 describes methods of measuring the performance of wideband cabled distribution systems for downstream and upstream television signals and f.m. sound radio signals.

A method of monitoring and assessing system radiation is described in Appendix A.

NOTE The titles of the publications referred to in this standard are listed on the inside back cover.