Upcoming ANSC C63® Meeting Addresses Revisions to Industry Standards

Concurrent IEEE EMC Chapter Meeting Reviews Proposed Revision to ANSI C63.4 Measurement Technique

CEDAR PARK, Texas, April 17, 2025 – Active technical contributors to the American National Standards Committee (ANSC) C63 (Electromagnetic Compatibility) will meet in person at TÜV Rheinland in Boxborough, Massachusetts, the week of May 5, 2025. The committee convenes regularly both virtually and in person to address the standards maintained and developed by ANSC C63, including the seminal ANSI C63.4 “Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHz.” As part of the goal to improve the quality and efficiency of measurement techniques, the committee welcomes input from industry on revisions to its standards and is considering such a revision to the existing boresight method specified in ANSI C63.4. Since the boresight method was introduced at the request of the Federal Communications Commission (FCC) decades ago, the committee is judiciously evaluating an alternative measurement technique commonly referred to as the linear scan method. 

To aid in this evaluation, the Institute of Electrical and Electronics Engineers (IEEE) Electromagnetic Compatibility (EMC) Society Boston Chapter is hosting a meeting at TÜV Rheinland on Monday, May 5, from 5:00 to 8:30 pm. Speakers include Art Wall, former FCC Representative to ANSC C63, and Zhong Chen, Chief Engineer with ETS-Lindgren and Vice-Chair of ANSC C63. ANSC C63 committee members Nicholas Abbondante, Chief EMC Engineer with Intertek, and Bob Mitchell, Director of Laboratory Technology and Innovation with TÜV Rheinland, are also speakers on the technical program.

A highlight of the meeting will be the live demonstration of the current (boresight) and proposed (linear scan) measurement technique under consideration for the next edition of ANSI C63.4. Attendees will view live demonstrations of each measurement technique in TÜV Rheinland’s 10-meter semi-anechoic chamber, helping them gain a clearer understanding through firsthand experience. More information about the agenda and technical program for this Boston Chapter meeting is available here, including speaker presentation titles, abstracts, and biographies, as well as a registration link. There is no charge to attend the meeting, but advance registration is required, as space is limited.

During the May meeting series, the committee will also address the new ANSI C63.25 series of standards for EMC test site validation. The series includes C63.25.1 “Validation Methods for Radiated Emission Test Sites, 1 GHz to 18 GHz,” which includes the applications of time domain (TD) and site voltage standing wave ratio (SVSWR); new procedures for site validation measurements in C63.25.2 (30 MHz to 1 GHz); and a novel technique using cylindrical mode filtered (CMF) SVSWR measurements for test site validation and antenna calibration from 18 GHz to 40 GHz included in the draft standard C63.25.3.

In light of the significance of the draft C63.25.3 standard in expediting EMC test site validation time as well as offering greater performance diagnostics, Mr. Chen and Yibo Wang, RF Engineer with ETS-Lindgren, have produced a video demonstration of the CMF SVSWR method, available here, to educate test lab operators and managers on this novel technique. Viewers will learn how the CMF SVSWR is measured by placing the transmit antenna (typically a low-gain omni-directional antenna) at the edge of an EMC test chamber turntable and performing a single-cut vector-pattern measurement. A comprehensive evaluation of an EMC chamber quiet zone is then readily measured without any special positioning fixtures. The video demonstration shows the entire measurement process, including post-processing, which can be performed in real time.

“Demonstrations greatly aid in the understanding of the measurement techniques specified in the ANSC C63 standards,” said Mr. Chen. “By conducting the demonstration at TÜV Rheinland for the Boston Chapter meeting, our goal is to show the two measurement techniques – boresight and linear scan – including the data generated by each technique. The data will help us evaluate the quality and validity of the two measurement techniques.”

For more information on ANSC C63, click here. If you are interested in attending the C63 meetings from May 5 to 8, 2025, at TÜV Rheinland as an observer, please contact Janet O’Neil, Customer Relations Manager and Secretary of the C63 Subcommittee 1 (Techniques and Development), at +1 (512) 531-2676 or janet.oneil@ets-lindgren.com. You can find the C63 meeting agenda and standards to be discussed each day here.

As the global industry leader in the components and systems used for EMC and wireless testing, ETS-Lindgren supports the activity of ANSC C63 to share best practices and advance technology for the industry. ETS-Lindgren’s customers can count on continuous support on all products — from essential components such as Antennas and Probes to complete Test Systems such as combination Antenna and EMC Test Chambers — through its team of 750 employees and six manufacturing sites worldwide. For decades, customers have relied on ETS-Lindgren’s expertise gained by more than 50,000 global RF shielded enclosure installations. 

About ETS-Lindgren        

ETS-Lindgren is an international manufacturer of components and systems that measure, shield, and control electromagnetic and acoustic energy. The company’s products are used for electromagnetic compatibility (EMC), microwave, wireless, and magnetic resonance imaging (MRI) testing, electromagnetic field (EMF) measurement, radio frequency (RF) personal safety monitoring, and control of acoustic environments.

Headquartered in Cedar Park, Texas, ETS-Lindgren has manufacturing facilities in North America, Europe, and Asia. The company is a wholly owned subsidiary of ESCO Technologies, a leading supplier of engineered products for growing industrial and commercial markets. ESCO is a New York Stock Exchange listed company (symbol ESE) with headquarters in St. Louis, Missouri. Additional information about ETS-Lindgren is available at www.ets-lindgren.com. Follow ETS-Lindgren on Facebook, Instagram, LinkedIn, X, and YouTube. Additional information about ESCO and its subsidiaries is available at www.escotechnologies.com.

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CONTACT:

Omar Webb

Event & Content Specialist

ETS-Lindgren

Office: +1 (512) 531-2672

omar.webb@ets-lindgren.com