• BS 4054-1:1980

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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    Superseded date:  15-11-1995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

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    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

    Abstract - (Show below) - (Hide below)

    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.

    General Product Information - (Show below) - (Hide below)

    Committee EPL/100
    Development Note Partially supersedes BS 4054(1966) (07/2005)
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    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

    Standards Referencing This Book - (Show below) - (Hide below)

    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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