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IEEE C63.25.2 2024

IEEE C63.25.2 2024

$54.71

American National Standard for Validation Methods for Radiated Emission Test Sites, 30 MHz to 1 GHz

Published By Publication Date Number of Pages
IEEE 2024 87
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New IEEE Standard – Active. ANSI/USEMCSC C63.25.2 is a stand-alone standard for site validation measurements of radiated emission test sites from 30 MHz to 1 GHz. The site validation techniques covered are the site comparison method and the delta normalized site attenuation method. In addition, the traditional normalized site attenuation method is retained for continuity. This standard incorporates Annex D of ANSI C63.4-2014 and ANSI C63.14a-2017 as well as necessary information from ANSI C63.5-2017 related strictly to site validation requirements (for example, antennas allowed to be used, geometry-specific correction factors for biconical dipoles used in normalized site attenuation measurements). This standard can be referenced by other ANSI/USEMCSC C63 standards where site validation requirements are necessary.

PDF Catalog

PDF Pages PDF Title
1 ANSI/USEMCSC C63.25.2-2024 Front Cover
2 Title page
4 Important Notices and Disclaimers Concerning USEMCSC Standards Documents
8 Participants
10 Introduction
11 Contents
13 1. Overview
1.1 Scope and purpose
1.2 Word usage
1.3 Additional word usage conventions
14 1.4 Dimensional tolerances
2. Normative references
15 3. Definitions, acronyms, and abbreviations
3.1 Definitions
17 3.2 Acronyms and abbreviations
18 3.3 Figures for Clause 3
19 4. Test facilities
4.1 Introduction
4.2 Standard test site
4.3 Alternative test sites
20 5. Overview of site validation methods
5.1 General
5.2 Site comparison method (SCM)
5.3 Delta NSA (DNSA) method
21 5.4 Traditional NSA (TNSA) method
5.5 Common symbols
6. Measurement instrumentation and measurement antennas
6.1 Measurement instrumentation
22 6.2 Measurement antennas
6.3 Calibration of measuring equipment
26 6.4 Figures for Clause 6
27 7. Process selection and limitations
8. General site validation requirements
8.1 Common process
33 8.2 Site comparison method (SCM)
34 8.3 Delta normalized site attenuation (DNSA) method
36 8.4 TNSA method
38 8.5 Figures for Clause 8
42 Annex A (normative) Delta normalized site attenuation (DNSA) method
47 Annex B (informative) Rationale for site validation measurements
B.1 General
B.2 Site validation using standard biconical antennas
48 B.3 Site validation for antennas other than standard biconical antennas
50 Annex C (normative) Dimensional tolerances
C.1 General
51 C.2 Maximum tolerances on the dimensional requirements
52 Annex D (normative) Method: Traditional normalized site attenuation (TNSA), Theoretical NSA values, worksheets and tuned dipole correction factors
72 Annex E (informative) Method: Traditional normalized site attenuation (TNSA), Geometry-specific correction factors (GSCF) for biconical dipoles
E.1 General
73 E.2 Geometry-specific correction factors, 30 MHz to 1 GHz
E.3 Ground plane effects
E.4 Mutual coupling
74 E.5 Tuned dipole pattern
E.6 Plane wave illumination
E.7 Near field effects
E.8 Summary
75 Annex F (normative) Method: Traditional normalized site attenuation (TNSA), antenna correction factors for the standard biconical antenna
81 Annex G (informative) The equivalency of the traditional normalized site attenuation (TNSA) method to the site comparison method (SCM)
83 Annex H (normative) Theoretical normalized site attenuation (NSA) based on point dipole calculations
85 Annex I (informative) Bibliography

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IEEE C63.25.2 2024
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