EN 55016-1-6:2015/prA3 (Frag 4):2026

• Status: Not Published
• Publication Date: 25-Jan-2028
• ICS: 33.100.10 - Emission
• ICS: 33.100.20 - Immunity
• Technical Committee: CLC/TC 210 - Electromagnetic Compatibility (EMC)
• Drafting Committee: CLC/TC 210 - Electromagnetic Compatibility (EMC)
• Current Stage: 4020 - Enquiry circulated - Enquiry
• Start Date: 21-Aug-2026
• Due Date: 24-May-2024
• Completion Date: 21-Aug-2026
• Ref Project: SIST EN 55016-1-6:2015/prA3 (Frag 4):2026 - Specification for radio disturbance and immunity measuring apparatus and methods - Part 1-6: Radio disturbance and immunity measuring apparatus - EMC-antenna calibration - Amendment 3 - Fragment 4: NSA

• Amends: EN 55016-1-6:2015 - Specification for radio disturbance and immunity measuring apparatus and methods - Part 1-6: Radio disturbance and immunity measuring apparatus - EMC antenna calibration
• Effective Date: 16-May-2023

EN 55016-1-6:2015/prA3 (Frag 4):2026 is a CLC/IEC draft amendment fragment to CISPR 16-1-6 on EMC antenna calibration. It focuses on NSA-related content in Annex C, where the document gives updated correction factors, biconical antenna geometry, and mechanical dimensions used in radio disturbance and immunity measurements.

What does EN 55016-1-6:2015/prA3 (Frag 4):2026 specify?

EN 55016-1-6:2015/prA3 (Frag 4):2026 revises CISPR 16-1-6 through Amendment 3, Fragment 4, with a focus on Annex C. Annex C is the normative rationale section for antenna calibration and uncertainty analysis in the 30 MHz to 1 GHz range.

The fragment replaces specific text, figures, and tables in Annex C:

• C.6.2 on correction factors
• Figure C.10
• Figure C.18
• Table C.2
• Table C.3

The publication also includes front matter, a foreword, an introduction note, and supplemental comparison material marked for information only.

What are the key requirements of EN 55016-1-6:2015/prA3 (Frag 4):2026?

EN 55016-1-6:2015/prA3 (Frag 4):2026 mainly updates how biconical antenna calibration data are described and applied. In practice, this matters to calibration laboratories and test houses that need consistent antenna data for EMC measurements.

Updated correction factors in C.6.2

Clause C.6.2 replaces part of the correction-factor data used for the biconical antenna. The table gives updated ΔF values for converting AF measured by SSM to F, with separate values for 50 Ω balun and 200 Ω balun cases.

In practice, users apply these corrections when turning measured antenna data into the calibrated values used in test reports and uncertainty work.

Revised biconical antenna geometry in Figure C.10

Figure C.10 is replaced with a new diagram of one triangular section of a biconical antenna element. The new notes define the labeled lengths used in the geometry.

This matters because antenna calibration depends on using the same physical layout that the equations assume. Clear geometry reduces the risk of building or interpreting the antenna incorrectly.

New complete antenna view in Figure C.18

EN 55016-1-6:2015/prA3 (Frag 4):2026 adds Figure C.18, which shows the complete biconical antenna.

That helps engineers relate the section view in Figure C.10 to the full antenna structure used in calibration and uncertainty analysis.

Replaced mechanical dimensions in Table C.3

Table C.3 is replaced with updated mechanical dimensions for the biconical antenna. The table covers wire lengths, radius limits, and the number of segments.

In practice, this is the fabrication and inspection reference for the antenna build, so manufacturers and labs can check that the antenna matches the calibrated geometry.

Comparison material for the draft

The supplemental material compares correction factors between this draft and CISPR 16-1-6:2022, and also compares 1 MHz and 5 MHz frequency steps. It also notes that the 4:1 balun is preferred over the 1:1 balun because the frequency variation of the correction factor and free-space antenna factors is smaller.

This is useful when assessing whether a finer frequency step or a different balun gives steadier calibration data.

What terms does EN 55016-1-6:2015/prA3 (Frag 4):2026 define?

• Electromagnetic Compatibility (EMC) - the field covered by the document, dealing with radio disturbance and immunity measurement methods.
• International Special Committee on Radio Interference (CISPR) - the IEC committee that prepared the amendment fragment.
• Antenna factor (AF) - the quantity corrected in Table C.2 before use in calibration work.
• SSM - the measurement method named in Table C.2, used as the basis for the correction factors.
• Balun - the matching component used with the biconical antenna feed; the document treats 50 Ω and 200 Ω versions separately.
• Biconical antenna - the antenna type whose diagram and mechanical dimensions are revised in Annex C.

Who uses EN 55016-1-6:2015/prA3 (Frag 4):2026?

EN 55016-1-6:2015/prA3 (Frag 4):2026 is used by EMC calibration laboratories, radio disturbance test houses, antenna manufacturers, and conformity assessment teams. It supports people who calibrate biconical antennas, apply correction factors, and document uncertainty for EMC measurements.

It is also relevant to engineers and quality managers who need to verify that antenna hardware and calibration data match the method described in CISPR 16-1-6.

What changed in EN 55016-1-6:2015/prA3 (Frag 4):2026 from the previous edition?

Compared with CISPR 16-1-6:2022, this fragment revises Figure C.10 and Table C.3, adds Figure C.18, and updates the correction factors in Table C.2. The supplemental material also compares the new values with the 2022 version and shows the effect of using 1 MHz and 5 MHz frequency steps.

What does the EN 55016-1-6:2015/prA3 (Frag 4):2026 document contain?

The document contains the foreword, amendment front matter, Annex C updates, and supplemental comparison material. Annex C provides the rationale for antenna-calibration equations and information for uncertainty analysis in the 30 MHz to 1 GHz range.

It includes revised tables and figures for the biconical antenna, including correction factors, a section view, a full antenna diagram, and mechanical dimensions. The supplemental pages add comparison plots and tables for the draft against CISPR 16-1-6:2022 and show the effect of different frequency steps.

SLOVENSKI STANDARD
01-oktober-2026
Specifikacija za merilne naprave in metode za merjenje radijskih motenj in
odpornosti - 1-6. del: Merilne naprave za merjenje radijskih motenj in odpornosti -
Umerjanje EMC antene - Dopolnilo 3 - Fragment 4: NSA
Specification for radio disturbance and immunity measuring apparatus and methods -
Part 1-6: Radio disturbance and immunity measuring apparatus - EMC-antenna
calibration - Amendment 3 - Fragment 4: NSA
Ta slovenski standard je istoveten z: EN 55016-1-6:2015/prA3 (Frag 4):2026
ICS:
17.220.20 Merjenje električnih in Measurement of electrical
magnetnih veličin and magnetic quantities
33.100.20 Imunost Immunity
SIST EN 55016-1-6:2015/prA3 (Frag en
4):2026
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

CIS/A/1514/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
CISPR 16-1-6/AMD3/FRAG4 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2026-08-21 2026-11-13
SUPERSEDES DOCUMENTS:
CIS/A/1406/CD, CIS/A/1425/CC
IEC CIS/A : RADIO-INTERFERENCE MEASUREMENTS AND STATISTICAL METHODS
SECRETARIAT: SECRETARY:
United States of America Mr Nicholas Abbondante
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):
CIS/B,CIS/D,CIS/F,CIS/H,CIS/I CISPR/CIS/A Horizontal Basic EMC
ASPECTS CONCERNED:
Electromagnetic Compatibility
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which
they are aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some Countries”
clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is the final stage for
submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).

TITLE:
Amendment 3 - Fragment 4: NSA
PROPOSED STABILITY DATE: 2027
NOTE FROM TC/SC OFFICERS:
This CDV contains the edited text of CISPR 16-1-6 Ed1 AMD3 fragment 4 "NSA"
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
permission in writing from IEC.

CISPR CDV 16-1-6/AMD3/FRAG4 © IEC 2026
1 INTERNATIONAL ELECTROTECHNICAL COMMISSION
2 INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE
3 ____________
5 SPECIFICATION FOR RADIO DISTURBANCE AND IMMUNITY
6 MEASURING APPARATUS AND METHODS –
8 Part 1-6: Radio disturbance and immunity measuring apparatus –
9 EMC antenna calibration
11 AMENDMENT 3 – FRAGMENT 4: NSA
13 FOREWORD
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49 shall not be held responsible for identifying any or all such patent rights.
50 Amendment 3 to CISPR 16-1-6 has been prepared by CISPR subcommittee A: Radio-
51 interference measurements and statistical methods.
CISPR CDV 16-1-6/AMD3/FRAG4 © IEC 2026
55 The text of this Amendment is based on the following documents:
Draft Report on voting
XX/XX/XXXX XX/XX/XXX
57 Full information on the voting for its approval can be found in the report on voting indicated in
58 the above table.
59 The language used for the development of this Amendment is English.
60 This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
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64 The committee has decided that the contents of this document will remain unchanged until the
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66 specific document. At this date, the document will be
67 • reconfirmed,
68 • withdrawn, or
69 • revised.
70 ____________
72 Introduction
73 (not to be included at publication)
74 Proposed revision of CIS
...