ANSI C63.19.pdf

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ANSI C63.19-2006 Front Cover

Title Page

Acknowledgments

Introduction

Participants

American National Standard Methods of Measurement of Compatibility between Wireless Communications Devices and Hearing Aids

1. Overview

1.1 Scope

1.2 Purpose

1.3 Organization and use of the document

2. Normative references

3. Definitions, acronyms, and abbreviations

3.1 Definitions

3.2 Acronyms and abbreviations

4. Wireless device, RF emissions test

4.1 Measured RF interference level

4.2 Test equipment and facilities

4.3 Test setup and validation

4.4 Near-field test procedure

5. Hearing aid RF near-field immunity test

5.1 Test facilities and equipment

5.2 Test setup and validation

5.3 RF immunity test procedure—primary

5.4 RF immunity test procedure—alternate

6. Wireless device T-Coil signal test

6.1 Test facilities and equipment

7. Performance

7.3 T-Coil coupling mode

7.4 Accessories and options

7.5 Product line compliance

8. Calibration and measurement uncertainty

8.1 General

8.2 Ambient conditions

8.3 Specific calibration requirements

8.4 Measurement uncertainty

9. Test report

9.1 Test plan

9.2 Applicable standards

9.3 Equipment unit tested

9.4 Test configuration

9.5 List of test equipment

9.6 Units of measurement

9.7 Location of test site

9.8 Measurement procedures

9.9 Reporting measurement data

9.10 General and special conditions

9.11 Summary of results

9.12 Required signatures

9.13 Test report annexes

9.14 Test report disposition

Annex J (informative) Sample HAC application forms

Annex K (informative) Bibliography

Annex A (normative) Definition of reference axes

Annex B (normative) Test frequencies

Annex C (normative) Equipment and setup calibration

Annex D (normative) Test equipment specifications

Annex E (informative) Sample measurement uncertainty estimates

Annex F (informative) Use of Helmholtz coils for calibration

Annex G (informative) RF envelope comparison for US WD systems

Annex H (informative) Explanation of rationale used in this standard

Annex I (informative) Measurement of peak power across multiple airlink technologies

American National Standard Methods of Measurement of Compatibility between Wireless Communications Devices and Hearing Aids Accredited by the American National Standards Institute Sponsored by the Accredited Standards Committee on Electromagnetic Compatibility, ™ I E E E 3 Park Avenue New York, NY 10016-5997, USA 12 June 2006 ANSI C63.19-2006 (Revision of ANSI C63.19-2001) Authorized licensed use limited to: Hong Kong University of Science and Technology. Downloaded on February 02,2013 at 05:18:12 UTC from IEEE Xplore. Restrictions apply.

Authorized licensed use limited to: Hong Kong University of Science and Technology. Downloaded on February 02,2013 at 05:18:12 UTC from IEEE Xplore. Restrictions apply.

ANSI C63.19-2006 (Revision of ANSI C63.19-2001) American National Standard Methods of Measurement of Compatibility between Wireless Communications Devices and Hearing Aids Accredited Standards Committee on Electromagnetic Compatibility, C63™ accredited by the American National Standards Institute Secretariat Institute of Electrical and Electronic Engineers, Inc. Approved 6 April 2006 American National Standards Institute Authorized licensed use limited to: Hong Kong University of Science and Technology. Downloaded on February 02,2013 at 05:18:12 UTC from IEEE Xplore. Restrictions apply.

© 1995 IEEE. Reprinted, with permission from the IEEE and Edwin L. Bronaugh (author), from his paper presented at the 1995 IEEE Symposium on EMC in Atlanta, GA. Acknowledgments The Accredited Standards Committee on Electromagnetic Compatibility, C63, thanks the IEEE and Edwin L. Bronaugh (author) for granting permission to use Helmholtz Coils for Calibration of Probes and Sensors: Limits of Magnetic Field Accuracy and Uniformity, from the 1995 IEEE Symposium on EMC, Atlanta, GA, in Annex F of this standard. Abstract: Uniform methods of measurement for compatibility between hearing aids and wireless communications devices are set forth. Keywords: American National Standard, electromagnetic compatibility, hearing aid, hearing aid compatibility (HAC), measurement methods, operational compatibility, personal communications service (PCS), wireless communications device ________________________ The Institute of Electrical and Electronics Engineers, Inc. 3 Park Avenue, New York, NY 10016-5997, USA Copyright © 2006 by the Institute of Electrical and Electronics Engineers, Inc. All rights reserved. Published 12 June 2006. Printed in the United States of America. C63 is a trademark of the Accredited Standards Committee on Electromagnetic Compatibility. iDEN is a registered trademark in the U.S. Patent & Trademark Office, owned by Motorola, Incorporated. PDF: No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher. ISBN 0-7381-4973-X SS95563 Authorized licensed use limited to: Hong Kong University of Science and Technology. Downloaded on February 02,2013 at 05:18:12 UTC from IEEE Xplore. Restrictions apply.

American National Standard An American National Standard implies a consensus of those substantially concerned with its scope and provisions. An American National Standard is intended as a guide to aid the manufacturer, the consumer, and the general public. The existence of an American National Standard does not in any respect preclude anyone, whether he has approved the standard or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not conforming to the standard. American National Standards are subject to periodic review and users are cautioned to obtain the latest editions. CAUTION NOTICE: This American National Standard may be revised or withdrawn at any time. The procedures of the American National Standards Institute require that action be taken to reaffirm, revise, or withdraw this standard no later than five years from the date of publication. Purchasers of American National Standards may receive current information on all standards by calling or writing the American National Standards Institute. Authorization to photocopy portions of any individual standard for internal or personal use is granted by the Institute of Electrical and Electronics Engineers, Inc., provided that the appropriate fee is paid to Copyright Clearance Center. To arrange for payment of licensing fee, please contact Copyright Clearance Center, Customer Service, 222 Rosewood Drive, Danvers, MA 01923 USA; (978) 750-8400. Permission to photocopy portions of any individual standard for educational classroom use can also be obtained through the Copyright Clearance Center. ANSI C63.19-2006 requires the use of a color monitor (and color printer) to view many of the graphics contained in this standard. Color is essential to the understanding of the graphics. Authorized licensed use limited to: Hong Kong University of Science and Technology. Downloaded on February 02,2013 at 05:18:12 UTC from IEEE Xplore. Restrictions apply.

Introduction This introduction is not a part of ANSI C63.19-2006, American National Standard Methods of Measurement of Compatibility between Wireless Communications Devices and Hearing Aids. In the fall of 1995 the Federal Communications Commission (FCC) initiated a Steering Committee to initiate a summit on Hearing Aid Compatibility and Accessibility to Digital Wireless Telecommunications. The goal of the summit was to formalize and continue discussions among the three key affected interests in this issue: organizations representing people with hearing loss, hearing aid manufacturers, and the digital wireless telephone industry. The ultimate purpose of the summit was to find a resolution of the interference problem that was acceptable to the industries involved. A summit meeting was held on January 3–4, 1996, in Washington, DC. At this summit meeting three working groups were formed to pursue issue resolution. Subsequently, the Long-Term Solutions User and Bystander Interference Group reached a consensus that a standards project was needed to document the consensus definition of and method of measurement for Hearing Aid Compatibility and Accessibility to Wireless Telecommunications. Subsequently ANSI C63™ was petitioned to undertake the joint standards projects documenting the methods of measurement and defining the limits for Hearing Aid Compatibility and Accessibility to Wireless Telecommunications. At its April 1996 meeting, ANSI C63 established a task group under its subcommittee on medical devices (SC 8). The charge to this task group (TC C63.19) was to develop such standards in cooperation with representatives of organizations representing people with hearing loss, hearing aid manufacturers, the digital wireless telephone industry, and other interested parties. The 2001 version of this document was the result of that committee’s efforts. The FCC adopted this standard to provide the technical requirements for its Report and Order establishing mandatory requirements for wireless hearing aid compatibility on July 10, 2003.a Following the adoption by the FCC and for several reasons, including technical changes in wireless communications devices and hearing aids and new understanding coming from experience gained in working with the 2001 version of this standard, a new revision effort was started. The result of this revision effort culminated in the production of this version of the standard. Participants At the time this standard was published, the Accredited Standards Committee on Electromagnetic Compatibility, C63, had the following membership: Donald N. Heirman, Chair Vacant, Vice Chair Robert L. Pritchard, Secretary Organization Represented Alliance for Telecom Industry Solutions (ATIS)...................................................... Chrys Chrysanthou James Turner (Alt.) American Council of Independent Laboratories (ACIL) .......................................... Michael F. Violette a FCC 03-168 William Stumpf (Alt.) Name of Representative Copyright © 2006 IEEE. All rights reserved. iv Authorized licensed use limited to: Hong Kong University of Science and Technology. Downloaded on February 02,2013 at 05:18:12 UTC from IEEE Xplore. Restrictions apply.

Jeffrey L. Silberberg (Alt.) Colin Brench (Alt.) Joshua Rosenberg (Alt.) Donald Sweeney (Alt.) Jonathan Stewart (Alt.) Dennis Bodson (Alt.) American Radio Relay League (ARRL)................................................................... Edward F. Hare Cisco Systems........................................................................................................... Werner Schaefer Curtis-Straus LLC..................................................................................................... Jon Curtis Dell Inc. .................................................................................................................... Richard Worley ETS-Lindgren ........................................................................................................... Michael Foegelle Zhong Chen (Alt.) Federal Communications Commission (FCC) .......................................................... William Hurst Food and Drug Administration (FDA)...................................................................... Jon P. Casamento Hewlett-Packard Company ....................................................................................... Kenneth Hall Information Technology Industry Council (ITIC) .................................................... John Hirvela Institute of Electrical and Electronics Engineers, Inc. (IEEE) .................................. Donald N. Heirman IEEE-EMCS ............................................................................................................. H. Stephen Berger Lucent Technologies................................................................................................. Dheena Moogilan National Institute of Standards and Technology....................................................... Dennis Camell Society of Automotive Engineers (SAE).................................................................. Poul Andersen Gary Fenical (Alt.) TUV-America, Inc.................................................................................................... David Zimmerman Joel Schneider (Alt.) Underwriters Laboratories ........................................................................................ Michael Windler Robert Delisi (Alt.) U.S. Dept. of Defense—Joint Spectrum Center........................................................ Marcus Shellman U.S. Dept. of the Navy—SPAWAR ......................................................................... David Southworth Individual Members.................................................................................................. Robert Hofmann Daniel Hoolihan John Lichtig Ralph M. Showers Members Emeritus.................................................................................................... Warren Kesselman At the time this standard was completed, C63 Subcommittee 8 had the following membership: Herbert Mertel Norman Violette Joseph Snyder (Alt.) Daniel Hoolihan, Chair Matthew Bakke H. Stephen Berger Paul Cardinal Jon P. Casamento Chrys Chrysanthou Steve Coston Robert Delisi Gerard Hayes Donald N. Heirman George Hirvela At the time this standard was completed, the C63 Working Group had the following officers: Bob Hofmann William Hurst Bob Jenkins Victor Kuczynski Harry Levitt Herbert Mertel Dheena Moongilan Joe Morrissey Werner Schaefer Ralph M. Showers Jeffrey L. Silberberg William Stumpf James Turner Michael F. Violette Robert Wegner Steve Whitesell Al Wieczorek Michael Windler Don Witters David Zimmerman H. Stephen Berger, Chair Tom Victorian, Vice Chair Copyright © 2006 IEEE. All rights reserved. v Authorized licensed use limited to: Hong Kong University of Science and Technology. Downloaded on February 02,2013 at 05:18:12 UTC from IEEE Xplore. Restrictions apply.

Contents 1. Overview .................................................................................................................................................... 1 1.1 Scope ................................................................................................................................................... 1 1.2 Purpose ................................................................................................................................................ 1 1.3 Organization and use of the document................................................................................................. 3 2. Normative references.................................................................................................................................. 5 3. Definitions, acronyms, and abbreviations .................................................................................................. 8 3.1 Definitions ........................................................................................................................................... 8 3.2 Acronyms and abbreviations ............................................................................................................. 11 4. Wireless device, RF emissions test........................................................................................................... 12 4.1 Measured RF interference level......................................................................................................... 13 4.2 Test equipment and facilities ............................................................................................................. 14 4.3 Test setup and validation ................................................................................................................... 16 4.4 Near-field test procedure ................................................................................................................... 21 5. Hearing aid RF near-field immunity test .................................................................................................. 29 5.1 Test facilities and equipment............................................................................................................. 29 5.2 Test setup and validation ................................................................................................................... 30 5.3 RF immunity test procedure—primary.............................................................................................. 32 5.4 RF immunity test procedure—alternate............................................................................................. 38 6. Wireless device T-Coil signal test............................................................................................................ 41 6.1 Test facilities and equipment............................................................................................................. 41 6.2 Test configurations and setup ............................................................................................................ 42 6.3 Test procedure for T-Coil signal........................................................................................................ 44 6.4 Broadband test procedure—alternate................................................................................................. 49 7. Performance.............................................................................................................................................. 50 7.1 Articulation weighting factor (AWF) ................................................................................................ 51 7.2 Audio coupling mode ........................................................................................................................ 51 7.3 T-Coil coupling mode........................................................................................................................ 54 7.4 Accessories and options..................................................................................................................... 56 7.5 Product line compliance .................................................................................................................... 57 8. Calibration and measurement uncertainty ................................................................................................ 57 8.1 General .............................................................................................................................................. 57 8.2 Ambient conditions............................................................................................................................ 57 8.3 Specific calibration requirements ...................................................................................................... 58 8.4 Measurement uncertainty................................................................................................................... 58 Copyright © 2006 IEEE. All rights reserved. vi Authorized licensed use limited to: Hong Kong University of Science and Technology. Downloaded on February 02,2013 at 05:18:12 UTC from IEEE Xplore. Restrictions apply.

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