CISPR 16-1-5:2003/AMD1:2012

Amendment 1 - Specification for radio disturbance and immunity measuring apparatus and methods - Part 1-5: Radio disturbance and immunity measuring apparatus - Specifications and validation procedures for CALTS and REFTS from 30 MHz to 1 000 MHz

Amendement 1 - Spécifications des méthodes et des appareils de mesure des perturbations radioélectriques et de l'immunité aux perturbations radioélectriques - Partie 1-5: Appareils de mesure des perturbations radioélectriques et de l'immunité aux perturbations radioélectriques - Spécifications et procédures de validation relatives aux CALTS et aux REFTS dans la plage comprise entre 30 MHz et 1 000 MHz

General Information

• Status: Published
• Publication Date: 18-Jun-2012
• ICS: 33.100.10 - Emission
• ICS: 33.100.20 - Immunity
• Technical Committee: CIS/A - Radio-interference measurements and statistical methods
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 17-Dec-2014

Relations

• Revised: CISPR 16-1-5:2014 - Specification for radio disturbance and immunity measuring apparatus and methods - Part 1-5: Radio disturbance and immunity measuring apparatus - Antenna calibration sites and reference test sites for 5 MHz to 18 GHz
• Effective Date: 05-Sep-2023

Standards Content (Sample)

CISPR 16-1-5
®

Edition 1.0 2012-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE
COMITÉ INTERNATIONAL SPÉCIAL DES PERTURBATIONS RADIOÉLECTRIQUES

AMENDMENT 1
AMENDEMENT 1

Specification for radio disturbance and immunity measuring apparatus and methods –
Part 1-5: Radio disturbance and immunity measuring apparatus – Specifications and
validation procedures for CALTS and REFTS from 30 MHz to 1 000 MHz

Spécifications des méthodes et des appareils de mesure des perturbations
radioélectriques et de l'immunité aux perturbations radioélectriques –
Partie 1-5: Appareils de mesure des perturbations radioélectriques et de l'immunité
aux perturbations radioélectriques – Spécifications et procédures de validation relatives
aux CALTS et aux REFTS dans la plage comprise entre 30 MHz et 1 000 MHz

CISPR 16-1-5:2003/A1:2012

---------------------- Page: 1 ----------------------
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CISPR 16-1-5

®


Edition 1.0 2012-06




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE




INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE

COMITÉ INTERNATIONAL SPÉCIAL DES PERTURBATIONS RADIOÉLECTRIQUES




AMENDMENT 1

AMENDEMENT 1




Specification for radio disturbance and immunity measuring apparatus and methods –

Part 1-5: Radio disturbance and immunity measuring apparatus – Specifications and

validation procedures for CALTS and REFTS from 30 MHz to 1 000 MHz



Spécifications des méthodes et des appareils de mesure des perturbations


radioélectriques et de l'immunité aux perturbations radioélectriques –

Partie 1-5: Appareils de mesure des perturbations radioélectriques et de l'immunité

aux perturbations radioélectriques – Spécifications et procédures de validation


relatives aux CALTS et aux REFTS dans la plage comprise entre 30 MHz et 1 000 MHz







INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE

PRICE CODE
INTERNATIONALE

CODE PRIX G


ICS 33.100.10; 33.100.20 ISBN 978-2-83220-144-2



Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

---------------------- Page: 3 ----------------------
– 2 – CISPR 16-1-5 Amend. 1 © IEC:2012
FOREWORD
This amendment has been prepared by subcommittee A: Radio-interference measurements
and statistical methods, of IEC technical committee CISPR: International special committee
on radio interference.
The text of this amendment is based on the following documents:
FDIS Report on voting
CISPR/A/994A/FDIS CISPR/A/1004/RVD

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.

____________
Replace the existing title of this standard by the following new title:
Specification for radio disturbance and immunity measuring apparatus and methods –
Part 1-5: Radio disturbance and immunity measuring apparatus – Specifications and
validation procedures for CALTS and REFTS from 30 MHz to 1 000 MHz

1 Scope
Replace the first paragraph of this clause by the following new paragraph:
This part of CISPR 16 specifies the requirements for calibration test sites used to perform
antenna calibrations and for reference test sites used to measure the antenna-pair reference
site attenuation for compliance test site validations. It describes the test antenna
characteristics, calibration and reference test site verification procedures and site compliance
criteria. Further information on calibration site requirements, test antenna considerations and
the theory of antennas and site attenuation is provided in informative annexes.
2 Normative references
Replace, in the existing list of references, the reference to “CISPR 16-1-4:2003” by the
following new reference:
CISPR 16-1-4:2010, Specification for radio disturbance and immunity measuring apparatus
and methods – Part 1-4: Radio disturbance and immunity measuring apparatus – Antennas
and test sites for radiated disturbance measurements

---------------------- Page: 4 ----------------------
CISPR 16-1-5 Amend. 1 © IEC:2012 – 3 –
3.1
calibration test site (CALTS)
Replace the existing definition by the following new definition and new note:
open-area test site with metallic ground plane and tightly specified site attenuation
performance in horizontal electric field polarization
NOTE A CALTS is used for the measurement of height dependent AF, and by the standard site method to
measure free-space AF. A CALTS can also be validated for vertical polarization via 4.7. See the related definition
of a REFTS.
3.6
site attenuation
Replace the existing term and definition by the following new term and definition:
site attenuation
SA
minimum site insertion loss measured between two polarization-matched antennas located on
a test site when one antenna is moved vertically over a specified height range and the other is
set at a fixed height
Add, after the existing term 3.8, the following new terms and definitions 3.9 and 3.10:
3.9
site insertion loss
transmission loss between a pair of antennas placed at specified positions on a test site,
when a direct electrical connection between the signal generator output and the measuring
receiver input is replaced by transmitting and receiving antennas placed at the specified
positions
3.10
reference test site
REFTS
open-area test site with metallic ground plane and tightly specified site attenuation
performance in horizontal and vertical electric field polarizations
NOTE Site attenuation measurements of a REFTS are used for comparison to corresponding site attenuation
measurements of a COMTS to evaluate the performance of the COMTS.
4 Specifications and validation procedures for a test site to be used to
calibrate antennas in the frequency range of 30 MHz to 1 000 MHz
Replace the existing title of this clause by the following new title:
4 Specifications and validation procedures for CALTS and REFTS from 30 MHz
to 1 000 MHz
Replace, in the last sentence of this subclause, “5.6 of CISPR 16-1-4” by “5.2.6 of
CISPR 16-1-4”.
4.1 Introduction
Replace the existing title of this subclause by the following new title
4.1 General
Replace the existing second paragraph of this subclause by the following new paragraph:

---------------------- Page: 5 ----------------------
– 4 – CISPR 16-1-5 Amend. 1 © IEC:2012
In order for a CALTS to be used as a reference test site for validating the performance of test
sites according to Clause 5 of CISPR 16-1-4, the CALTS should be verified using both
horizontal and vertical antenna polarizations, as described in 4.7, whereupon it qualifies for
use as a REFTS. Test sites specified in Clause 5 of CISPR 16-1-4 that are used for
demonstrating compliance with radiated emission limits are referred to herein as compliance
test sites (COMTS). Validation of a COMTS may be obtained by comparing it to the
theoretical site attenuation given in Clause 5 of CISPR 16-1-4, or by comparing the site
attenuation measured on a REFTS to the corresponding site attenuation measured on the
COMTS, using the same antennas and the same antenna set-up geometry.
4.2.2 Normative specification
Replace the existing text of this subclause, including Notes 1 and 2, by the following new text:
For the calibration of antennas, the CALTS shall comply with the validation criteria given in
4.5.3.1 at all frequencies at which the antennas shall be calibrated. The tests in 4.4.3.2 and
their associated criteria in 4.5.3.2 and 4.5.3.3 are optional, but are included for those who
want to confirm the achievement in 4.5.3.1 of T (f) to less than 0,7 dB.
SA
4.6.2 Validation report requirements
Replace, in the existing first sentence of item b), "(see 4.2.2a)" by "(see 4.2.2)".
4.7 Validation of the CALTS for vertical polarization
Replace the existing title of this subclause by the following new title:
4.7 Validation of a REFTS
Delete the existing text of this subclause “Under consideration.”
4.7.1 Introduction
Replace the existing title of this subclause by the following new title:
4.7.1 General
Add the following new text to this subclause:
A REFTS shall meet all requirements of Annex A and be validated with site attenuation
measurements for both horizontal and vertical polarizations. The test antenna for SA
measurements is specified in 4.3. In horizontal polarization SA measurements shall meet the
requirements of 4.4 except 4.4.3.2, 4.4.5 and 4.4.6. The criteria are specified in 4.7.3. Criteria
required for a CALTS described in 4.5.3.2 and 4.5.3.3 are not required for a REFTS. The test
antenna for SA measurements is specified in 4.3. In horizontal polarization SA measurements
shall meet the relevant requirements of 4.4 to 4.6. In vertical polarization SA measurements
shall meet the requirements of 4.7.3.
4.7.2 Site specification
Replace the existing title of this subclause by the following new title:
4.7.2 Site insertion loss measurements for vertical polarization
Add the following new text and subclauses to this subclause:

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CISPR 16-1-5 Amend. 1 © IEC:2012 – 5 –
4.7.2.1 General
The following precautions are applicable to vertically polarized antennas in addition to the
requirements for horizontally polarized antennas.
4.7.2.2 Antenna mounting and antenna mast requirements
The antenna separation shall be 10 m. The height of the centre of the transmitting antenna
shall be 2 m, except at 30 MHz, 35 MHz and 40 MHz, where the height shall be 2,75 m. The
frequency and the receive antenna heights shall be chosen according to Table 3.
The bottom tip of the antenna shall be at least 0,25 m above the ground plane. The antenna
mast should be made of low-density dielectric material, and demonstrated to have minimal
effects on the antenna response. Effects of the mast and horizontal boom on the antenna
factor shall be evaluated by measuring the transmission loss between two antennas with the
mast position varied relative to the antenna, varying the distance between the antenna and
the vertical part of the mast.
NOTE The procedure for evaluating mast effects is described in more detail in 5.4.2.3.3 of CISPR 16-1-4:2010.
Effort shall be made to minimize the influence of the antenna mast, e.g. by increasing the
distance between the antenna and the vertical part of the mast by mounting the antenna on a
horizontal boom.
Table 3 – Antenna heights
f h h f h h f h h
t r t r t r
MHz m m MHz m m MHz m m
30 2,75 2,75 90 2,0 1,15 300 2,0 2,6
35 2,75 2,4 100 2,0 1,0 400 2,0 1,8
40 2,75 2,4 120 2,0 1,0 500 2,0 1,4
45 2,0 1,9 140 2,0 1,0 600 2,0 1,4
50 2,0 1,9 160 2,0 1,0 700 2,0 1,0
60 2,0 1,5 180 2,0 1,0 800 2,0 1,0
70 2,0 1,5 200 2,0 1,0 900 2,0 1,6
80 2,0 1,15 250 2,0 3,1 1 000 2,0 1,6
h and h are transmit and receive antenna heights, respectively.
t r

4.7.2.3 Cable layout
Cables can act as parasitic reflectors when aligned with the antenna elements, which can
change the site insertion loss in the order of ± 1 dB if a cable drops as close as 0,5 m to the
rear element of the antenna. Effects of the cables can be evaluated by varying this horizontal
distance until the effects on SA are negligible. At the distance finally chosen for the
measurement, any influence caused by the cables will then be masked by uncertainties of the
REFTS. Clamp-on ferrites placed on the cable can reduce this effect, especially where the
antenna has a poor balun. It is recommended that cables extend horizontally behind the
antenna (orthogonal to the antenna elements) for a minimum of 5 m for a CALTS and 2 m for
a REFTS before dropping to the ground.
4.7.2.4 Ground plane size
Depending on the ratio of the separation distance between the antennas and the distance to
the edges of an OATS ground plane, a non-negligible edge diffraction effect may occur. The
presence of diffraction effects can be observed as a regular ripple superimposed on the data
from a swept frequency SA measurement. The ripple is pronounced in regions of minima of
the SA data. In some cases ripple can be reduced by placing the antennas such that the

---------------------- Page: 7 ----------------------
– 6 – CISPR 16-1-5 Amend. 1 © IEC:2012
measurement path is on the short axis, rather than the long axis, of the test site. Edge
diffraction may also be reduced by enlarging the ground plane using additional wire mesh
connected to the perimeter of the ground plane, and into the earth/ground, but the earth/soil
shall be kept very damp for this to be effective. Another solution is to increase the size of the
ground plane.
4.7.3 Validation procedure
Replace the existing title of this subclause by the following new title:
4.7.3 Compliance criterion
Add the following new text to this subclause:
The compliance criterion is given by Equation (6) over the frequency range of 30 MHz to
1 000 MHz with T (f) = 1,0 dB for a CALTS and T (f) = 1,5 dB for a REFTS. The
SA SA
measurement uncertainty ∆SA shall be evaluated for this equation according to 4.5.2.
m
4.7.4 Compliance criteria
Replace the existing title of this subclause by the following new title:
4.7.4 Validation report
Add the following new text to this subclause:
The requirements for the site validation report are the same as in 4.6.2.
4.7.5 Validation report
Delete this subclause.
B.2.2 Relations between balun properties and S-parameters
Replace the existing Equation (B.2) by the following new equation:

Z Z  Z
22 23
0
 
= ×
 
Z Z (1− S )(1− S )− S S
32 33 22 33 23 32
 

(B.2)
 
[(1+ S )(1− S )+ S S ] 2S
22 33 32 23
23
 

 
2S [(1− S )(1+ S )+ S S ]
32 22 33 32
 23 
Replace the existing sentence below Equation (B.2) by the following new sentence:
where Z is the measurement impedance, typically 50 Ω.
0
Replace the existing Equation (B.3) by the following new equation:

1− S S + S S − S + S
22 33 23 32 22
33
Z = 100= R + jX  (Ω) (B.3)
AB AB AB
(1− S )(1− S )−S S
22 33 23 32
C.1 Analytical relations
Add, after the last paragraph of this clause, the following new paragraph:

---------------------- Page: 8 ----------------------
CISPR 16-1-5 Amend. 1 © IEC:2012 – 7 –
Alternatively the SA values can be calculated by numerical modelling as described in C.2.
c
Numerical modelling is more versatile and gives more accurate results outside the resonant
frequency than the analytical equations presented here. The agreement of the two methods at
resonan
...