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BS 4054-1:1980

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Methods of measuring and expressing the performance of radio receivers for sound broadcasting General conditions
Available format(s)

Hardcopy , PDF

Superseded date

15-11-1995

Language(s)

English

Published date

30-06-1980

National foreword
Cooperating organizations
CHAPTER I: GENERAL
Section one - Introduction
1 Object
2 Scope
Section two - General notes on measurements
3 Introduction
4 Description of measuring conditions
5 Accuracy of measuring instruments
6 Presentation of results
7 Deviations
Section three - Environmental conditions
8 Introduction
9 Standard reference conditions
10 Standard referee conditions
11 Standard testing conditions
12 Other environmental conditions
Section four - Precautions during measurements
13 Damage to equipment
14 Safety arrangements
Section five - Power supply
15 Types of power supply and relevant measuring
    conditions
16 Mains-operated receivers - normal conditions
17 Mains-operated receivers - overvoltages and
    undervoltages
18 Accumulator-operated receivers - normal conditions
19 Accumulator-operated receivers - overvoltages and
    undervoltages
20 Primary battery-operated receivers - normal
    conditions
21 Primary battery-operated receivers with tubes or
    valves - undervoltages
22 Primary battery-operated receivers with transistors
    - undervoltages
23 Additional information
24 Power and current comsumption of receivers
Section six - Toleration of surge discharges of
                    limited energy, applied to the
                    aerial input circuit
25 Introduction
26 Method of test
CHAPTER II: AUDIO-FREQUENCY SIGNALS
Section seven - General notes on audio-frequency
                    signals
27 Introduction
28 Setting of tone controls
29 Setting of selectivity controls
Section eight - Recommended audio-frequencies for
                    measurements
30 Introduction
31 General table of preferred frequencies
32 Standard reference frequency
Section nine - Audio-frequency output power
33 Introduction
34 Audio-frequency substitute load
35 Method of measurement of output power
36 Standard output power
CHAPTER III: RADIO-FREQUENCY SIGNALS
Section ten - General notes on radio-frequency
                    input signal
37 Introduction
38 Recommended value of modulation factor
39 Pre-emphasis
Section eleven - Recommended radio frequencies for
                    measurements
40 General table of preferred frequencies
41 Restricted frequency requirements
42 Spot-frequency receivers
Section twelve - Radio-frequency input arrangements
43 Introduction
44 Artificial aerials for receivers with unbalanced
    input terminals that are normally connected to an
    open aerial, for the frequency range 100 kHz to 30
    MHz
45 Simulating networks for providing a specified source
    impedance for the receiver requiring such impedances
46 Input arrangements for magnetic aerials
47 Combining networks
48 Balanced radio-frequency input circuit
49 Method of measurement of the unbalance ratio
50 Loading network for radio-frequency input terminals
    for special applications
Section thirteen - Recommended values for radio-
                    frequency input signal levels
51 Introduction
52 Input signal levels, expressed in terms of the
    apparent signal source voltage
53 Input signal levels, expressed in terms of the
    available power
54 Input signal levels, expressed in terms of the
    equivalent free space electric field strength
CHAPTER IV: TUNING METHODS AND RADIO-FREQUENCY STABILITY
Section fourteen - Tuning
55 General methods of tuning
56 Frequency limits of the tuning ranges
Section fifteen - Automatic frequency control
                    performance characteristics
57 Introduction
58 Method of measurement
59 Presentation of the results
Section sixteen - Operating frequency and its
                    stability
60 Introduction
61 Operating frequency
62 Method of measurement
63 Variation of operating frequency with time
64 Method of measurement
65 Period of initial variation of operating frequency
66 Method of measurement
67 Presentation of the results
68 Operating frequency as a function of the supply
    voltage
69 Presentation of the results
70 Operating frequency as a function of the input
    signal level
71 Presentation of the results
Section seventeen - General mechanical properties of
                    tuning systems
72 Introduction
73 Ease of tuning
74 Ease of reading
75 Calibration error
76 Play in the tuning mechanism
Section eighteen - Performance characteristics of push-
                    button tuning systems
77 Introduction
78 Method of measurement
79 Presentation of the results
Section nineteen - Performance characteristics of
                    automatic search systems
80 Introduction
81 Methods of measurement
82 Presentation of the results
APPENDIX
A Survey of input arrangements for magnetic aerials
CHAPTER I: GENERAL
Section one - Introduction
1 Object
2 Scope
3 Conditions of application of the various methods
Section two - Calibration
4 Resonance method of calibration
5 Aperiodic method of calibration
6 Construction of a measuring loop
CHAPTER II: INPUT ARRANGEMENTS
Section three - Methods with small screened loops
7 Origin of Method A
8 Measuring set-up
9 Considerations and limitations
10 Origin of Method B
11 Measuring set-up
12 Considerations and limitations
13 Origin of Method C
14 Measuring set-up
15 Considerations and limitations
Section four - Method with a partly-screened loop
                    of medium dimensions
16 Origin of Method D
17 Measuring set-up
18 Considerations and limitations
Section five - Methods with large loops for use in
                    a screened room
19 Origin of Method E
20 Measuring set-up
21 Considerations and limitations
22 Origin of Method F
23 Measuring set-up
24 Considerations and limitations
Section six - Methods with multiple screened loops
25 Origin of Method G
26 Measuring set-up
27 Considerations and limitations
28 Origin of Method H
29 Measuring set-up
30 Considerations and limitations
Figures

Gives standard conditions of measurement used for determining the performance characteristics of sound broadcast radio receivers and describes such methods of measurement as are common to several types of receiver.

Committee
EPL/100
DevelopmentNote
Partially supersedes BS 4054(1966) (07/2005)
DocumentType
Standard
Pages
68
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

Standards Relationship
IEC 60315-1:1988 Identical
IEC 60315-1A:1971 Identical

BS 4054-3:1980 Methods of measuring and expressing the performance of radio receivers for sound broadcasting Radio-frequency measurements on receivers for amplitude-modulated emissions
BS 5942-8:1987 High fidelity audio equipment and systems; minimum performance requirements Specification for combination equipment
BS 5942-11:1989 High fidelity audio equipment and systems; minimum performance requirements Specification for high fidelity systems for use in vehicles (for example, motor cars); general requirements
BS 6160-6:1989 Radio equipment used in mobile services Methods of measurement for selective-calling and data equipment
BS 6160-5:1989 Radio equipment used in mobile services Methods of measurement for receivers employing single-sideband techniques (R3E, H3E or J3E)
BS 5817-4:1989 Specification for audiovisual, video and television equipment and systems Specification for matching values for the interconnection of equipment in a system
BS 6160-3:1990 Radio equipment used in mobile services Methods of measurement for receivers for A3E or F3E emissions
BS 6160-3:1981 Methods of measurement for radio equipment used in the mobile services Receivers for A3 or F3 emissions
BS 6160-5:1981 Methods of measurement for radio equipment used in the mobile services Receivers employing single-sideband techniques (A3A, A3H or A3J)
BS 5942-13:1989 High fidelity audio equipment and systems; minimum performance requirements Specification for high fidelity systems for use in vehicles (for example, motor cars); FM radio tuner units
BS 5942-2:1987 High fidelity audio equipment and systems; minimum performance requirements Specification for FM radio tuners
BS 5942-1:1980 High fidelity audio equipment and systems; minimum performance requirements Specification for general requirements
BS 5876:1980 Guide for subjective viewing tests for television receivers
BS 4054-2:1980 Methods of measuring and expressing the performance of radio receivers for sound broadcasting Measurements related to the audio-frequency part of the receiver
BS 4054-5:1980 Methods of measuring and expressing the performance of radio receivers for sound broadcasting Measurement on frequency-modulated receivers of the response to impulsive interference
BS 4054(1966) : 1966 METHODS FOR MEASURING AND EXPRESSING THE PERFORMANCE OF RADIO RECEIVERS - RECEIVERS FOR A.M. AND F.M. SOUND BROADCAST TRANSMISSIONS
BS 5877:1980 Guide for subjective listening tests for sound radio receivers

IEC 60268-14:1980 Sound system equipment. Part 14: Circular and ellipticalloudspeakers; outer frame diameters and mounting dimensions
IEC 60315-2:1971 Methods of measurement on radio receivers for various classes of emission - Part 2: Measurements particulary related to the audio-frequency part of a receiver
IEC 60086-1:2015 Primary batteries - Part 1: General
ISO 226:2003 Acoustics — Normal equal-loudness-level contours
IEC 60268-5:2003+AMD1:2007 CSV Sound system equipment - Part 5: Loudspeakers

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