• I.S. EN 60315-4:1998

    Current The latest, up-to-date edition.

    METHODS OF MEASUREMENT ON RADIO RECEIVERS FOR VARIOUS CLASSES OF EMISSION - RECEIVERS FOR FREQUENCY-MODULATED SOUND BROADCASTING EMISSIONS

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  01-01-1998

    Publisher:  National Standards Authority of Ireland

    For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
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    Table of Contents - (Show below) - (Hide below)

    1 General
        1.1 Scope
        1.2 Normative references
        1.3 Definitions
        1.4 Standard measuring conditions
        1.5 General notes on measurements
    2 Sensitivity and internal noise
        2.1 Explanation of terms
        2.2 Signal-to-noise ratio (weighted and unweighted)
              and SINAD
        2.3 Noise-limited sensitivity
        2.4 Gain-limited sensitivity
        2.5 Usable sensitivity
        2.6 Deviation sensitivity
        2.7 Input-output characteristics
    3 Rejection of unwanted signals
        3.1 Capture ratio
        3.2 Selectivity and nearby channel rejection
              (two-signal)
        3.3 Rejection of intermediate and image frequencies,
              and spurious responses
        3.4 Suppression of amplitude modulation
        3.5 Rejection of r.f. signal intermodulation products
        3.6 Tuning and automatic frequency control (AFC)
              characteristics
    4 Interference due to internal sources
        4.1 Single-signal whistles
        4.2 Modulation hum (interference at power supply
              frequency)
        4.3 Unwanted self-oscillations
        4.4 Acoustic feedback
    5 Overall audio-frequency characteristics
        5.1 Fidelity
        5.2 Harmonic distortion
        5.3 Intermodulation distortion
        5.4 Inter-channel characteristics
        5.5 Characteristics of the volume control
        5.6 Residual output
        5.7 Crosstalk attenuation
        5.8 Overall audio-frequency response
    6 Effect of additional modulations of the input signal
        6.1 Rejection of signals in the ranges 16 kHz to
              22 kHz and 54 kHz to 99 kHz
        6.2 Rejection of signals in the range 62 kHz to 22 kHz
              (SCA rejection)
        6.3 Measurement of interference caused by RDS signals
        6.4 Suppression of the fundamental, harmonics and
              sidebands of the subcarrier and the pilot-tone
              signal
        6.5 Suppression of interference due to adjacent channel
              signals with a stereophonic receiver using the
              pilot-tone system
    7 Sensitivity, antenna gain and directional response of
        receivers using rod, telescopic or built-in antennas
        7.1 Introduction
        7.2 Method of measurement of sensitivity and antenna
              gain for a receiver using a rod or telescopic
              antenna by the absorbing clamp described in
              CISPR 16-1
    8 Characteristics whose methods of measurement are specified
        in IEC 60315-1
        8.1 Introduction
        8.2 List of characteristics and cross-references
    Figures
    1 Frequency response limits of band-pass filter 200 HZ
        to 15 kHz
    2 Frequency response limits of band-pass filter 22.4 Hz
        to 15 kHz
    3 Frequency response limits of band-pass filter 200 Hz
        to 1.5 kHz
    4 Frequency response limits of the 1 kHz band-elimination
        filter
    5 Weighting filter for converting white noise into
        special coloured noise for selectivity measurements
    6 Arrangement for various measurements with two r.f.
        input signal
    7 Antenna substitution networks for injecting one or two
        signals, for 50 omega signal generators and 75 omega
        unbalanced and 300 omega balanced receiver inputs
    8 Arrangement for various measurements with one r.f.
        input signal
    9 Signal-to-noise ratio
    10 Noise-limited sensitivity as a function of signal
        frequency
    11 Gain-limited sensitivity as a function of signal
        frequency
    12 Output/input characteristics and noise output curves
        showing terms defined in 1.3
    13 Capture ratio
    14 Selectivity curves
    15 Image and intermediate frequency rejection ratios
    16 Spurious responses at a tuning frequency of 94 MHz
        (single signal method)
    17 Arrangement for measuring rejection of unwanted
        signals simulating cable reception, using sinusoidal
        modulation
    18 Arrangement for various measurements using three r.f
        input signals
    19 Tuning characteristics
    20 Tuning characteristics obtained by measuring the local
        oscillator frequency
    21 Measurement of acoustic feedback
    22 Arrangement for measuring fidelity
    23 Overall total harmonic distortion as a function of
        a.f. output power
    24 Distortion-limited output power as a function of
        modulation frequency
    25 Total harmonic distortion as a function of the r.f.
        input signal level
    26 Total harmonic distortion as a function of the deviation
    27 Variation of distortion with detuning
    28 Total harmonic distortion as a function of the a.f.
        modulation frequency
    29 Cross-intermodulation between the channels of a
        stereo receiver (pilot-tone system)
        A.1 Example of a passive 1 kHz band-elimination filter
              capable of meeting the limits shown in figure 4
        D.1 Arrangement for r.f. signal injection into the
              antenna with an absorbing clamp
        D.2 Correction curves for the insertion loss of the
              absorbing clamp
    Annexes
    A Example of a 21 kHz band-elimination filter
    B Standard deviations for supplementary services
    C Measurement of crosstalk between stereo channels
    D Characteristics of rod and telescope antennas -
        method of measurement under study
    ZA Normative references to international publications
        with their corresponding European publications

    Abstract - (Show below) - (Hide below)

    Applies to radio receivers and tuners for the reception of frequency-modulated sound-broadcasting emissions with rated maximum system deviations of +/- 75 kHz and +/-50 kHz in ITU Band 8.

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    Development Note For CENELEC adoptions of IEC publications, please check www.iec.ch to be sure that you have any corrigenda that may apply. (01/2017)
    Document Type Standard
    Publisher National Standards Authority of Ireland
    Status Current
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