Copyright 2005 International EMC Standards Activity 1 EMC International Standards Update CISPR SC A and I Activity Don Heirman Don HEIRMAN Consultants

International EMC Standards Activity Copyright 2005 International EMC Standards Activity2 Pub CIS/A/554/CDV and 591/RVC: Receiver specs to 18 GHz: No new requirements but concerns raised if 1 MHz IF bandwidth selectivity is met with present instrumentation Goal is to ensure that selectivity is met by current instrumentation used above 1 GHz CDV passed; FDIS to be issued

International EMC Standards Activity Copyright 2005 International EMC Standards Activity3 Pub CIS/A/577/CDV and A/567/CC: LISN Specs. Measure magnitude and phase; include rationale 40 dB isolation between phase and neutral/ground If phase tolerance is exceeded, provides ways to include fact in uncertainty budget

International EMC Standards Activity Copyright 2005 International EMC Standards Activity4 Pub CIS/A/565/CDV: Turntable, test setup table and tower: Use NSA-type of measurements; broadband antenna for MHz range only at this time Covers “raised” turntable/tabletop combination If floor standing product extends beyond any setup table, no need to perform test

International EMC Standards Activity Copyright 2005 International EMC Standards Activity5 Pub CIS/A/602/CDV: Site validation above 1 GHz: Uses VSWR method of comparing maximum deviations for several antenna positions using both polarizations Broadband transmit antenna E and H plane requirements stated and moved to illuminate sides of test volume Receive antenna at normal position for making radiated emission measurements Site VSWR must be less than or equal to 5 dB Alternate: Omnidirectional probe in test volume; transmit antenna at receive antenna site

International EMC Standards Activity Copyright 2005 International EMC Standards Activity6 CISPR A Site validation above 1 GHz

International EMC Standards Activity Copyright 2005 International EMC Standards Activity7 CISPR A Site validation above 1 GHz

International EMC Standards Activity Copyright 2005 International EMC Standards Activity8 CISPR A Site validation above 1 GHz

International EMC Standards Activity Copyright 2005 International EMC Standards Activity9 Pub CISPR/A/454/Q and A/476/RQ: Antenna Calibration Questionnaire results indicated that National Committees preferred that E-field measurement forms the basis for compliance using properly calibrated common antennas Maintenance project launched to implement Initially up to 1 GHz, but has application over 1 GHz Proposal for at least one calibration procedure due in October 2005 ANSI C an interim possibility

International EMC Standards Activity Copyright 2005 International EMC Standards Activity10 Pub CIS/A/573/FDIS and A/585/RVD: Measurement method > 1 GHz: No antenna “aiming” or “boresighting” No antenna height search if EUT contained in receiving antenna beamwidth EUT rotated no more than 15 degree steps Published

International EMC Standards Activity Copyright 2005 International EMC Standards Activity11 CISPR A Measurements above 1 GHz

International EMC Standards Activity Copyright 2005 International EMC Standards Activity12 CISPR A Measurements above 1 GHz

International EMC Standards Activity Copyright 2005 International EMC Standards Activity13 Pub CISPR/A/543/CD and A/571/CC: Uniform Arrangement testing for radiated emissions and immunity Chamber calibration (semi-anechoic) needs to satisfy “plane” and “volume” immunity and emission requirements, respectively Joint task force activity with SC77B No X number assigned yet CDV being prepared.

International EMC Standards Activity Copyright 2005 International EMC Standards Activity14 CISPR A: Uniform Arrangement

International EMC Standards Activity Copyright 2005 International EMC Standards Activity15 CISPR A: Uniform Arrangement

International EMC Standards Activity Copyright 2005 International EMC Standards Activity16 CISPR A: Uniform Arrangement

International EMC Standards Activity Copyright 2005 International EMC Standards Activity17 CISPR A: Uniform Arrangement

International EMC Standards Activity Copyright 2005 International EMC Standards Activity18 CISPR A: Uniform Field Calibration

International EMC Standards Activity Copyright 2005 International EMC Standards Activity19 CISPR Subcommittee I CISPR I documents citing work above 1 GHz CISPR I/105/CDV & I/161/RVD: Limits and measurement methods 1-6 GHz CISPR I/106/CDV included 6-18 GHz-failed Each reference: for instrumentation for antennas for test site validation for test method

International EMC Standards Activity Copyright 2005 International EMC Standards Activity20 CISPR SC I Activities ITE Activity Improvements of test setups Improvement of telecom port measurements Control of common mode load Measurement uncertainty in test reports Definition of ITE with radio transmitter and/or reception function

International EMC Standards Activity Copyright 2005 International EMC Standards Activity21 CISPR SC I Activities ITE Activity (CISPR 22) CIS/I/145/NP & I/156/RVN: Power Line Communications (“almost” Broadband Access in the USA) Should only radiated emission measurements be used for compliance below 30 MHz? What impedance device should be used in the measurement? Can the Longitudinal Conversion Loss (LCL) be quantified as this power line “load” is unbalanced? A consensus was not achieved on a CDV and an NP was produced instead effectively starting over. Task group formed in SC I to come up with new proposal

International EMC Standards Activity Copyright 2005 International EMC Standards Activity22 CISPR SC I Activities ITE and other product activity Immunity of ITE for CISPR 24 Radiated immunity up to 6 GHz Immunity of Receivers for CISPR 20 About to start maintenance activity Immunity work for new CISPR 29 Immunity testing for TV receivers— Objective picture assessment

International EMC Standards Activity Copyright 2005 International EMC Standards Activity23 CISPR SC I Activities ITE and other product activity Maintenance of CISPR 13 covering emissions from sound and TV broadcast receivers and associated equipment Maintenance of CISPR 20 on immunity complements CISPR 13

International EMC Standards Activity Copyright 2005 International EMC Standards Activity24 CISPR SC I Activities Multimedia Emissions—CISPR 32 To replace CISPR 22 and 13 Focus on products which will meet Class B emission limits Draft being prepared to handle Table top, Floor standing, Wall mounted Home entertainment equipment Testing in a FAR Provide general test setups, not all

International EMC Standards Activity Copyright 2005 International EMC Standards Activity25 Summary Much work internationally related to activity above 1 GHz in CISPR Subcommittee A in its development of horizontal standards to be used by the product committees. CISPR Pub 16-1-X, 16-2-X, and IEC , 4-21, 4-22 (and others) are reposititory Work in Subcommittee I makes use of SC A activity and covers ITE, multimedia, and receiver issues For further information, contact the author