BS 4054-2:1980

Foreword
Cooperating organizations
Chapter 1: General
Section One - Introduction
1. Object
2. Scope
Section Two - General notes on measurements
3. Introduction
4. Various requirements
5. Environmental conditions
6. Precautions during measurements
Section Three - Audio-frequency input signal
7. Introduction
8. Input arrangements for receivers with audio-
    frequency input terminals
9. Input arrangements for receivers without audio-
    frequency input terminals
10. Indirect audio-frequency input signal
11. Requirements for measurements using a frequency
    test record (if applicable)
12. Combining networks
13. Recommended audio frequencies for measurements
14. Audio-frequency input level
Chapter 2: Audio-frequency distortion and related
properties
Section Four - General notes on audio-frequency non-
linearity distortion
15. Introduction
16. Acoustic measurements
17. Measurements in case of more than one set of output
    terminals
Section Five - Distortion in the presence of a single
signal (harmonic distortion)
18. Introduction
19. Method of measurements
20. Presentation of the results
21. Distortion under dynamic conditions
Section Six - Distortion in the presence of two
simultaneous signals (intermodulation)
22. Introduction
23. Method of measurement A
24. Method of measurement B
25. Method of measurement C
Section Seven - Distortion in the audio-frequency input
circuit as a function of the applied input signal level
26. Introduction
27. Method of measurement
28. Presentation of results
Section Eight - Output power of the audio-frequency
part of a receiver
29. Maximum useful output power
30. Highest useful output power
31. Reference output power
32. Method of measurement
33. Presentation of the results
Section Nine - Gain/audio-frequency input level
characteristic
34. Introduction
35. Method of measurement
36. Presentation of the results
Chapter III: Audio-frequency sensitivity and related
properties
Section Ten - Sensitivity
37. Audio-frequency sensitivity
38. Method of measurement
39. Sensitivity for maximum useful output power
40. Method of measurement
Section Eleven - Maximum permissible input level
41. Introduction
42. Method of measurement
Section Twelve - Volume control characteristic
43. Introduction
44. Method of measurement
45. Presentation of the results
Section Thirteen - Residual audio-frequency gain
46. Introduction
47. Method of measurement
Chapter IV: Audio-frequency response characteristics
48. General notes on response/frequency characteristics
    and directional characteristics
49. Square-wave evaluation method
Section Fifteen - Acoustic response characteristics
50. Acoustic response/frequency characteristics
51. Method of measurement
52. Presentation of the results
53. Acoustic directional characteristics
54. Method of measurement
55. Presentation of the results
Section Sixteen - Electrical response characteristics
56. Electrical response/frequency characteristics
57. Method of measurement
58. Presentation of the results
59. Electrical response/frequency characteristics of
    tone controls
60. Method of measurement
61. Presentation of the results
62. Electrical response/frequency characteristics of
    loudness controls
63. Method of measurement
64. Presentation of the results
Chapter V: Stereophonic characteristics
Section Seventee - Introduction
65. General notes on audio-frequency characteristics
    related to stereophonic reproduction
Section Eighteen - Crosstalk attenuation between two
channels
66. Introduction
67. Method of measurement
68. Presentation of the results
Section Nineteen - Equality and stereophonic
identicality factor
69. Introduction
70. Method of measurement
71. Presentation of the results
Chapter VI: Miscellaneous subjects
Section Twenty - Hum originating in the audio-frequency
part of a receiver
72. Introduction
73. General notes on the measurements
74. Method of measurement of direct audio-frequency hum
75. Alternative method of measurement of total direct
    audio-frequency intermodulation hum
76. Method of measurement of audio-frequency inter-
    modulation hum
77. Presentation of the results
Section Twenty-one - Susceptibility to external fields
78. Introduction
79. Method of measurement
Section Twenty-two - Audio-frequency signal-to-noise
ratio
80. Introduction
81. Method of measurement
Section Twenty-three - Unwanted acoustic and/or
electrical audio-frequency feed-back
82. Introduction
83. Method of measurement A
84. Method of measurement B
85. Presentation of the results

Specifies methods of measurement for assessing the properties (including stereophonic characteristics) of the audio-frequency part of various types of sound radio receiver.