C63 SEPTEMBER 2005 MEETING SERIES 2005 C63 SHORT COURSES C63 APRIL MEETING HIGHLIGHTS C63 SUBCOMMITTEE ACTIVITY SUMMARIES OVERVIEW OF RECENT FCC ACTIONS C63 STANDARDS / PROJECTS SUMMARY C63 OFFICERS’ DIRECTORY
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The next C63 meeting series is scheduled to be held during the last week in September 2005.
Tuesday 27 September. 1000-1200 SC2 1300-1700 SC1
Wednesday 28 September. 0800-1045 SC8 1100-1200 SC6 1300-1445 SC5 1500-1700 SC3
Thursday 29 September 0830-1630 C63 Main Committee
| (The meeting location was | still under consideration at the | |
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| April meeting.) | ||
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2005 C63 SHORT COURSES
Don Heirman, Education Committee Chair
C63.4-2003 and C63.4 proposed amendments and Comparison with CISPR 22, August 4-6 in Chicago. Presenters Don Heirman (Don HEIRMAN Consultants), Bob Hofmann (Hofmann EMC Engineering) and Bill Hurst (FCC). This event occurs just prior to the IEEE EMC Symposium. Course details and a registration form are on page 53 of the Symposium’s Advance Program brochure. A copy is available at www.EMC2005.org (click Technical Program – click Advanced Program).
C63.5-2004 (Antenna Calibration & Usage Workshop), September 30, 2005, Irvine, CA, Presenters: Don Heirman, Mike Windler (UL), and Dennis Camell (NIST). Contact Janet O’Neil for further information (j.n.oneil@ieee.org).
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“Succession Plan” Adopted: Under this plan, the Chair of the Main Committee and Chairs of the Subcommittees each serve a three-year term. (It is possible, upon approval of the Consensus Body of the C63 committee, for the Chair of the Main Committee and the Chairs of the Subcommittees to renew for a second three-year term.) The Vice-Chair of the main committee will succeed the Chair of the main committee when the Chair reaches the end of the 3 year term of office, subject to the approval of the Consensus Body. Similarly, the Vice-Chairs of the Subcommittees shall succeed the Chairs of their respective subcommittees when they reach the end of their term of office, subject to the approval of the Consensus Body. Implementation of the plan will be phased in starting in January 2006. Dr. Showers is resigning at the end of 2005 and will be succeeded by Don Heirman. Subcommittee changes will be staggered over a three-year cycle so that there are some changes each year. Under this plan, each subcommittee will need to have a Vice-Chair. Mike Windler was approved as Vice-Chair of SC-1 and Marcus Shellman was approved as SC-2 Vice-Chair. Other subcommittees were advised to recommend Vice-Chairs for approval by C63 as soon as possible.
IEEE SA Support: An agreement has been signed with IEEESA for 2005 Secretariat and Document Publication support to C63. Estimated cost is $47,200.
Membership: Twenty organizations have paid the $2,000 annual fee for 2005 membership. The Society of Automotive Engineers and CISCO are new organizational members. Southwest Research Institute did not renew its membership. Four individuals are members of the main C63 Committee and there are thirteen individual subcommittee members.
ANSI Audit: ANSI is auditing C63’s standards development process and has selected C63.7’s development for review. One result of this audit could be a change in C63’s procedures.
Training Session: A number of C63 members attended a 25 April special standards training session given by IEEE-SA staff. The IEEE has a new template for standards development which is required for all future documents, as well as revisions to current standards. It is expected that use of the template will save considerable editing costs.
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SC-1 Techniques and Development
Don Heirman Chair
Project 1-8.1 C63.22 Guide for Automated EMI Measurements: The committee agreed to focus now on automated radiated and conducted immunity measurement in accordance with IEC 61000-4-3 and IEC 61000-4-6 respectively. The next step will be to identify the tasks to be completed and then assign these tasks to members of the working group.
Project 1-8.3 C63.2 to Include CISPR 16-1-1 with US Foreword IN C63: Mike Windler advised that the recirculation material was provided to Bob Pritchard in October 2004. IEEE then sent out the recirculated document and the ballot return date was extended in December to January 12 due to a lack of response from the voting members. Bob subsequently forwarded the draft to Mike Windler for further editing.
Project 1-13.2 C63.4 Site Acceptability Above 1 GHz:
Previous work focused on a frequency domain method that required a special calibration of horn antennas. They are now looking at a time domain reflectometry method and have found this method to be very convenient and time efficient. The working group then drafted a procedure using this technique and will next try to use the method at NIST, UL and the FCC.
Ken Hall noted that antenna calibrations were performed in an international round robin test. Results showed that worst case deviation was > 9 dB and the reproducibility was > 4 dB for five setups.
Project 1-15.5 C63.23 Measurement Uncertainty IN C63: The Chair noted that the ballot on this document was issued in C63 and failed. Many of the votes were negative, largely due to the fact that the document should be called a recommended practice rather than a standard.
Project 1-15.6 C63.5 Antenna Calibration: C63.5-2004 was released on December 20,2004. This document replaces C63.5-1988 AND 1998.
Project 1-15.7 C63.4 Fully Absorber Lined Room (FAR):
The task group headed by Dennis Camell now has a test artifact to use to assess the impact of using FARs instead of test facilities that have a ground plane reflective surface. Ken Hall will see if the test artifact from REGTP can be provided to NIST for Mr. Camel’s working group efforts. Plans are to finish round robin of current participants by end of August 2005 and report by end of September 2005.
Project 1-15.9 Maintenance of Revision to C63.4-2003:
Group has identified two topics or focus areas, GTEM and measurements above 1 GHz, that are the priority items to address for the maintenance revision. Within two months, Mr. Berger advised that working group members have been given action items to complete and he expects to present a full update on working group activity at the October meeting.
The Chair reviewed the following focus areas for the revision to C63.4-2003 and the person leading the effort to address the focus area:
*Site validation and measurement procedures > 1 GHz – Windler
*GTEM validation and measurement procedures for intentional radiators and for frequencies >1 GHz and harmonization with IEC 61000-4-20 and related TIA standards. – Berger
*Stabilization of emissions from cables leaving the test site
(e.g. through ferrite channel or other means) – The Chair noted that this topic needs to be addressed; a technical report is required to capture data taken showing variation in data using a common mode choke – Hofmann
*Video display changes to accommodate modern use – Hofmann
*Procedure for addressing cable loss as a function of temperature – Volunteer needed
*LISN calibration procedures – Moongilan
*Figure 2 (LISN) in tabular form as well as a graph – Hofmann
*Pulse desensitization procedure – Schaefer
Project 1-15.10 C63.2 and C63.4 Use of Spectrum Analyzers for Emissions Testing: The purpose of this effort is to define the issues involved in the use of spectrum analyzers and then to develop procedures for compliance measurements of emissions using spectrum analyzers.
Project 1-15.11 Measurement of Broadband Emissions Associated with Digital Technology: Tom Phillips agreed to talk with Martin Perrine and Bill Hurst to determine what further action is required on this topic.
Interpretations subgroup of C63 SC 1: – The Chair noted the various requests for interpretations that have come in regarding C63.4. Each request was addressed within a reasonable time but less than 30 days on average. Items addressed were:
*Location of monitor and ac adapter (Japan)
*Antenna calibration must use C63.5 and they can use antennas other than tuned dipoles as reference antenna (A2LA)
*Where to get TV receiver input signal information (Japan)
*Do bundled cables need to be manipulated for emission maximization (FCC referral)
*Can absorber material be on the ground plane for radiated emission measurements above 1 GHz (Intel)
*In-situ LISN calibration requirement (Elliott Labs)
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Dave Southworth Chair
The membership of SC2 consists of the C63 Chair, all C63 Sub-Committee Chairs, Marcus Shellman and Joe Snyder
Scope and approach: Changes were made in the scope to reflect the changes as addressed in the last C63 main meeting in which it was agreed to change the title of the C63.14 to add E3 and eliminate ESD and EMP (although these terms are included under the umbrella term of E3). It was agreed that the approach was to verify that terms in the present 1998 version of C63.14 would be verified as still being in C63 standards and to check definitions given in C63 standards created since 1998 to see if new terms need to be added. The Department of Defense (DOD) terms found in military standards would be reviewed to gather new terms that need to be added. Marcus Shellman and Joe Snyder took the action to gather a listing of DOD standards and handbooks and potential terms to be added to the C63.14. Southworth will do a search of the Adobe Acrobat version of the C63 standards that he has to verify currency of terms in C63.14 and gather new terms. It is hoped that the subcommittee chairs can also assist with the gathering of new terms not already in C63.14. Those terms not specifically E3 related and not used in the C63 standards nor in DOD standards will be proposed for deletion from C63.14. Those terms used in C63 and specifically E3 related and included in IEEE Std 100 may be proposed for deletion from C63 as well. Showers noted that the IEEE Std 100 was more a glossary of terms. Terms that needed to be defined in a standard should stay in C63.14. It was noted that some terms suggested by NATO working groups may be included since they usually are applicable to DOD use as well. It was also noted that the document needed updates on a regular basis such as 5 years if not sooner. An aggressive schedule was proposed in hopes that the document might be ready for review by the end of 2006. Suggested changes to the document will be briefed to the C63 main meeting via presentation format if the document itself cannot be fully updated in the IEEE template in time. It was also suggested that the subcommittee consider including drawing symbols since it was noted that there are several symbols for ground reference. After a short discussion, it was decided to not include them since there should be an IEEE standard that already addresses these. It was also recommended that IEC 60050-161 terms also be considered for inclusion if that document has been updated since 1998 (the IEC 60050-161 was in the C63.14 references as being included). It was also suggested that the reference section (paragraph 2.0) of C61.4 only include IEEE Std 100 since some of the other references no longer have the definitions referenced earlier and also some of the MIL-STDs references no longer exist.
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John Lichtig, Chair
The scope of SC 3 was approved and criteria for membership is being developed. A report by Don Heirman on CISPR A activity was received. The output of Subcommittee A is primarily on the CISPR Publication 16 series which is the standard for EMC measurement methods and measurement instrumentation. These standards are incorporated in various CISPR product committee standards (industrial, scientific, medical, IT, radio receiver, TVs, appliances, lighting and automotive equipment). CISPR Subcommittee A has four joint task forces with IEC TC77 (EMC). The four tasks are on: *Testing using transverse electromagnetic (TEM) devices *Testing using reverberation techniques *Uniform arrangements for both radiated emission and
radiated immunity testing in a single test chamber *Measurements made in fully absorber lined rooms (FARs).
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Ed Hare, Chair
The Committee has 12 members and one Working Group to develop a standard for immunity levels and test methods of audio-based office equipment and accessories used with wireless devices used in office environments. This subcommittee continues to support SC-8 on the development of C63-18.
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Dan Hoolihan, Chair
The checklists for lab assessors were discussed briefly. Little progress has been made recently due to other priorities of the developers.
Proficiency testing was discussed. We are negotiating with Jeff Gust of Quametec to run a proficiency testing program for SC6. We are awaiting a second quote from Jeff based on inputs we gave him on the first quote we received from him.
A report was received from A2LA indicating that they have accredited 111 EMC labs and 35 labs in the Automotive EMC Lab Accreditation Program. In addition, they have accredited 34 labs in telecom, 4 in Bluetooth, 7 for CTIA, and 11 for SAR testing. In addition, they have accredited 82 labs in the calibration area having RF/Microwave capabilities.
A report was given on the National Cooperation for Laboratory Accreditation (NACLA) annual meeting held in early April. The principal focus of the meeting was on ISO/IEC 17011 which is replacing ISO/IEC Guide 58. People may consult the NACLA web site ( www.nacla.net) for further details on the meeting and on other aspects of NACLA.
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Stephen Berger, Chair
The subcommittee is getting organized and now has an approved scope to: Provide the technical expertise and resources necessary for writing, updating, or changing existing and proposed UPCS and related standards to provide new or amended measurement techniques and associated instrumentation, measurement methods, and operational limits or protocols covering UPCS activities.
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Dan Hoolihan, Chair
Seventeen attendees were present at Subcommittee 8’s April 27th meeting. The membership was reviewed and 25 individuals were approved for 2005.
Activity Reports:
C63.18 - Work is continuing on the second edition of C63.18. Jeff Silberberg, the working group chair, reported that progress is slower than expected. The second edition will recommend use of a field strength meter for the measurements. There was an extended discussion of peak and average measurements using field strength meters.
C63.21 – Howard Bassen has resigned as chair of the working group on this standard number. Bob DeLisi from UL is checking with his management to see if he can take over the chairmanship of the working group.
C63.19 – Steve Berger reported on the progress of this working group. He stated that the third recirculation of C63.19 is completed and it is undergoing its 45-day public review as required by ANSI. He announced that a Public Notice had been released by the FCC on Monday, April 25th, indicating that industry can use the second edition of C63.19 (2005 version) or the 2001 version to qualify products. A PINS-C and a PINS were both discussed relative to the next revision of this standard. A Motion was passed to adopt the PINS-C presented at the meeting subject to having a written report to the Subcommittee 8 by July 15th to proceed or not proceed with a PINS to modify C63.19 via an electronic ballot.
Liaison Reports – Liaison reports were given on IEC SC62A Maintenance Team 23, the AAMI/EMC Committee, the FDA EMC activities, and IEEE 1073/ISO TC 215 Working Group on Wireless in Health Care (Status of the ISO TC 215 Technical Report # 21730 – First Edition -2005[Health Informatics – Use of Mobile Wireless Communication and Computing Technology in Healthcare Facilities – Recommendations for the Management of Unintentional Electromagnetic Interference with Medical Devices]).
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by Bill Hurst
The out-of-channel emission masks for full service DTV transmitters are specified in Section 73.622(h) of the Commission’s rules and, for low power stations, Section 74.794 (47 C.F.R.§§ 73.622(h) and 74.794). The FCC issued a Public Notice, DA 05-1321, to clarify those rules and provide guidance for conducting measurements of the out-of-channel emissions of DTV transmitters. A detailed procedure for measuring DTV emission spectra is under development by the IEEE.
The FCC began an inquiry into the adequacy of the digital signal strength standard and testing procedures used to determine whether households are eligible to receive distant broadcast digital television (DTV) network signals from satellite communications providers. The Notice of Inquiry, FCC 05-94, seeks comment and information on whether the existing statutes and regulations concerning the digital television signal strength standard and testing procedures as used for identifying if households are unserved by local network TV signals for purposes of determining eligibility to receive distant signals from satellite services need to be revised. The record obtained through this inquiry will be used to prepare a report to Congress describing the results of this study and the Commission’s recommendations, if any, for changes that should be made to the applicable Federal statutes or regulations.
In Public Notice, DA 05-1134, the Office of Engineering and Technology (OET) clarified the measurement standards to be used in demonstrating compliance with the Hearing Aid Compatibility (HAC) requirements. In the Hearing Aid Compatibility Report and Order, (WT Docket No. 01-309), the FCC required that digital wireless phones be capable of operating effectively with hearing aids based on certain performance measurement standards contained in the 2001 version of ANSI C63.19, “American National Standard for Methods of Measurement of Compatibility between Wireless Communication Devices and Hearing Aids, ANSI C63.19-2001.” On April 13, 2005, the American National Standards Institute (ANSI) Accredited Standards Committee C63 for Electromagnetic Compatibility Subcommittee 8 (Medical Devices) (ANSI ASC C63 SC8) (the ANSI Committee) informed the Commission that it recently adopted and released a draft version of an updated hearing aid compatibility standard, ANSI C63.19-2005. The ANSI Committee requested that the Commission: (1) adopt the updated standard after its final approval by ANSI, and (2) accept testing to the draft ANSI C63.19-2005 standard prior to ANSI’s final approval of the standard.
Applicants for certification may rely on either the 2001 or 2005 version of ANSI C63.19 and must identify which version they are using for compatibility testing and for rating wireless phones, consistent with 47 C.F.R. § 2.947 (b). The Office of Engineering and Technology (OET) will certify equipment that meets the compatibility requirements which has been tested and rated using the procedures specified in either version of the standard, pending further action by the Commission to modify the rules to reference the revised version of ANSI C63.19. Allowing the use of the new measurement and rating procedures now should assist manufacturers and carriers in meeting the September 16, 2005, deadline for providing handset models that comply with the radio frequency interference requirements of § 20.19(b). The Commission will permit Telecommunications Certification Bodies (TCBs) to review and issue grants for such devices.
The FCC issued a Public Notice, DA 05-1005, to clarify that the equipment authorization requirements for Unlicensed Personal Communications Service (UPCS) devices that operate in the 1920-1930 MHz band pursuant to Subpart D of Part 15 of the Commission’s Rules. Specifically, it is no longer required, as part of the equipment authorization process, that UPCS equipment incorporate certain coordination features and labeling features.
Due to the need to protect incumbent fixed microwave operations in the band, the FCC rules distinguished between coordinatable and noncoordinatable PCS devices, and Section 15.307 of the Rules outlines the procedures by which UTAM coordinates the deployment of such devices. Because UTAM has taken the necessary steps to deploy UPCS equipment throughout the 1920-1930 MHz band by providing notification to the remaining microwave licensees in that band, the need for coordination will cease to exist after April 4, 2005. Applicants for equipment authorization will continue to be required to show that they are participating members of UTAM, as specified in Section 15.307(b) of the Rules.
The FCC has adopted rules to open access to new spectrum for wireless broadband in the 3650-3700 MHz band (3650 MHz). (See FCC 05-56) The Commission adopted a hybrid approach that draws from both the unlicensed and licensed regulatory models and provides for nationwide, non-exclusive licensing of terrestrial operations in the band utilizing technologies employing contention-based protocols. This streamlined licensing mechanism with minimal regulatory entry requirements will encourage multiple new entrants and stimulate the rapid expansion of wireless broadband services – especially in rural America – by Wireless Internet Service Providers (WISPs) and other entities with limited resources. The Commission also provided an opportunity for the introduction at 3650 MHz of a variety of new wireless broadband technologies using a contention-based approach.
The FCC has granted a waiver (FCC 05-58) of the emission measurement procedures applicable to ultra-wideband (UWB) transmitters that operate under Part 15 of the rules, 47 C.F.R. §§ 15.501. Specifically, the waiver permits the emissions from UWB transmitters operating in the 3.1-5.03 GHz and 5.65-
10.6 GHz bands that employ frequency hopping or stepped frequency modulation techniques, or that gate the transmitted signal, to be measured with the transmitter operating in its normal transmission mode. This waiver applies to the measurement procedure applicable to UWB devices, permitting products to be tested based on the manner in which they are operated. This action is taken in response to a Petition for Waiver that was filed by the Multi-band OFDM Alliance Special Interest Group (MBOA-SIG) on August 26, 2004.
Under ET Docket No. 03-108, the Commission has issued a Report and Order on the subject of cognitive radio/software defined radio. (See FCC 05-57) Advances in technology are creating the potential for radio systems to use radio spectrum more intensively and more efficiently than in the past. Perhaps none of these advances holds greater potential for literally transforming the use of spectrum in the years to come than the development of software-defined and cognitive, or “smart,” radios. Regardless of the regulatory model – licensed, unlicensed, or other new models – these technologies are allowing and will increasingly allow more intensive access to, and use of, spectrum than possible with traditional, hardware-based radio systems.
Software defined and relatively simple cognitive radio systems are already in use today. They include current cellular radio systems with capabilities such as transmit power control, handoff reconfiguration, and real time network control such as registration and control channel signaling. In addition, wireless local area networks are currently using adaptive techniques for channel identification, dynamic frequency selection, and adaptive modulation schemes for varying data throughput. The Commission has recognized cognitive capabilities in the rules as a means of allowing more efficient spectrum use.
The FCC has amended Part 15 to provide greater flexibility for the introduction of new wide-bandwidth devices and systems. (See FCC 04-285) These amendments to the Rules are intended to better accommodate devices and systems that use wide bandwidths. Specifically, the FCC is permitting the use of peak emission levels, similar to the levels applied to UWB devices, for wideband emissions in the 5925-7250 MHz, 16.2-17.7 GHz and 23.12-29.0 GHz bands. This action will facilitate the introduction of some of the operating systems sought by the commenting parties, including radar systems that would be used to improve automotive safety and tracking systems that could be employed for personnel location, such as hospital patients and emergency rescue crew, as well as for such functions as inventory control. Limiting these devices to certain frequency bands will minimize the interference potential to critical authorized radio systems
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| STANDARDS/PROJECTS SUMMARY | ||
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| STD/PROJECT | ABBREVIATED TITLE | STATUS as of April 2005 |
| C63.2 - 1996 | Instrumentation | Recirculation ballot due out soon |
| C63.4 – R2 | Measurement Methods | Work ongoing-2006 target |
| C63.5 - 2004 | Antenna Calibration | Published December 2004 |
| C63.7 - 1992 | OATS, Construction of | ANSI approval on hold pending audit |
| C63.12 - 2000 | EMC Limit Setting | Current standard in review |
| C63.14 - 1998 | EMC Definitions | Work ongoing in SC-2 to revise |
| C63.15 | Immunity Measurements & Instrumentation | Recirculation of ballot required |
| C63.16 - 1993 | ESD Test Methodologies | Future activity in review |
| C63.17 - 1998 | Unlicensed Personal Comm. Serv. Devices | SC-7 to accomplish revision |
| C63.18 - 1997 | Medical Devices; Radiated Immunity Test | Being rewritten by SC-8 |
| C63.19 - 2001 | Hearing Aids and Wireless Comm Devices | In public review |
| C63.22 - 2004 | Guide for Automated EMI Measurements | Published December 2004 |
| C63.23 | Measurement Uncertainty | First ballot failed, resolving comments |
Dr. Ralph M. Showers, Chairman (showers@seas.upenn.edu) Donald N. Heirman Vice-Chairman (d.heirman@worldnet.att.net) Robert Pritchard, Secretary (r.pritchard@ieee.org) Warren A. Kesselman, Treasurer/Newsletter Editor (w.kesselman@ieee.org) Donald N. Heirman, Chair SC-1 Techniques and Development (d.heirman@worldnet.att.net) Dave Southworth, Chair SC-2 Terms and Definitions (dave.southworth@navy.mil) John Lichtig, Chair SC-3 International Standardization (JFL@LichtigEMC.com) Ed Hare, Chair SC-5 Immunity Measurements (w1rfi@arrl.org) Daniel D. Hoolihan, Chair SC-6 Accreditation/Conformity Assessment (hoolihan@emcxpert.com) Stephen Berger, Chair SC-7 Unlicensed Personal Communications Services Devices (stephen.berger@ieee.org) Daniel D. Hoolihan, Chair SC-8 Medical Device EMC Test Methods (hoolihan@emcxpert.com)
ACCREDITED STANDARDS COMMITTEE C63 ELECTROMAGNETIC COMPATIBILITY NEWSLETTER is published approximately forty-five days after a C63 Committee meeting and is available on the web site www.c63.org . That site also contains much information about C63 and its subcommittees.
© 2005 ASC C63. Articles may be reproduced in whole or in part provided that the source “ASC C63” and Newsletter edition and date is mentioned in full.