CISPR 16-1-1:2010/AMD1:2010

CISPR 16-1-1
®
Edition 3.0 2010-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE
COMITÉ INTERNATIONAL SPÉCIAL DES PERTURBATIONS RADIOÉLECTRIQUES
BASIC EMC PUBLICATION
PUBLICATION FONDAMENTALE EN CEM
AMENDMENT 1
AMENDEMENT 1
Specification for radio disturbance and immunity measuring apparatus and
methods –
Part 1-1: Radio disturbance and immunity measuring apparatus – Measuring
apparatus

Spécifications des méthodes et des appareils de mesure des perturbations
radioélectriques et de l'immunité aux perturbations radioélectriques –
Partie 1-1: Appareils de mesure des perturbations radioélectriques et de
l'immunité aux perturbations radioélectriques – Appareils de mesure

CISPR 16-1-1:2010/A1:2010

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CISPR 16-1-1
®
Edition 3.0 2010-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE
COMITÉ INTERNATIONAL SPÉCIAL DES PERTURBATIONS RADIOÉLECTRIQUES
BASIC EMC PUBLICATION
PUBLICATION FONDAMENTALE EN CEM
AMENDMENT 1
AMENDEMENT 1
Specification for radio disturbance and immunity measuring apparatus and
methods –
Part 1-1: Radio disturbance and immunity measuring apparatus – Measuring
apparatus

Spécifications des méthodes et des appareils de mesure des perturbations
radioélectriques et de l'immunité aux perturbations radioélectriques –
Partie 1-1: Appareils de mesure des perturbations radioélectriques et de
l'immunité aux perturbations radioélectriques – Appareils de mesure

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
D
CODE PRIX
ICS 33.100.10 ISBN 978-2-88912-008-6
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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– 2 – CISPR 16-1-1 Amend. 1 © IEC:2010
FOREWORD
This amendment has been prepared by CISPR subcommittee A: Radio-interference
measurements and statistical methods, in cooperation with CISPR subcommittee D:
Electromagnetic disturbances related to electric/electronic equipment on vehicles and internal
combustion engine powered devices, of IEC technical committee CISPR: International special
committee on radio interference.
The text of this amendment is based on the following documents:
Enquiry draft Report on voting
CISPR/A/876/CDV CISPR/A/893/RVC

Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

____________

INTRODUCTION
CISPR 16-1-1 uses a “black box” approach to define specifications for test instrumentation.
All stated specifications in CISPR 16-1-1 are met by an instrument independent of the
selected implementation or technology in order to be considered suitable for measurements in
accordance with CISPR standards. The addition of FFT-based measuring instrumentation
requires further specifications as addressed in this amendment.
3.7
measuring receiver

Replace the existing definition and Notes 1 and 2 of 3.7 by the following new definition and
note:
instrument such as a tunable voltmeter, an EMI receiver, a spectrum analyzer or an FFT-
based measuring instrument, with or without preselection, that meets the relevant parts of this
standard
NOTE See Annex I for further information.

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CISPR 16-1-1 Amend. 1 © IEC:2010 – 3 –
Add, after the existing definition 3.11.5, the following new term and definition:
3.12
measurement time
T
m
effective, coherent time for a measurement result at a single frequency (in some areas also
called dwell time)
– for the peak detector, the effective time to detect the maximum of the signal envelope
– for the quasi-peak detector, the effective time to measure the maximum of the weighted
envelope
– for the average detector, the effective time to average the signal envelope
– for the rms detector, the effective time to determine the rms of the signal envelope
4.1 General
Add, after the existing text of this subclause, a new second paragraph as follows:
Spectrum analyzers and FFT-based measuring instruments that meet the requirements of this
clause can be used for compliance measurements. For emission measurements, FFT-based
measuring instruments shall sample and evaluate the signal continuously during the
measurement time.
4.4.2 Variation with repetition frequency (relative calibration)
Replace the existing first paragraph of this subclause by the following new three paragraphs:
The response of the measuring receiver to repeated pulses shall be such that for a constant
indication on the measuring receiver of e.g. 20 dB(μV), the relationship between pulse
amplitude and repetition frequency is in accordance with Figure 1.
As an alternative the response of the measuring receiver to repeated pulses shall be such
that for a constant voltage setting of the pulse generator of e.g. 50 dB(μV) at repetition
frequencies of 25 Hz (Band A) and 100 Hz (Bands B, C and D), the relationship between
receiver indication and repe
...