NAB Logo
April 10, 2010

NRSC Guideline Updated to Include New Quality Measurement Technique for FM IBOC

--Offers new, standardized technique for verifying quality of FM IBOC transmissions--

LAS VEGAS - The National Radio Systems Committee (NRSC) today adopted an update to an important NRSC Guideline document dealing with measurement of RF mask compliance for AM and FM HD Radio� stations. The updated Guideline benefits broadcasters by defining new methods for identifying transmission problems. This will result in higher quality digital broadcast signals. The NRSC is a technical standards-setting body co-sponsored by the National Association of Broadcasters (NAB) and the Consumer Electronics Association (CEA).

NRSC-G201-A, NRSC-5 RF Mask Compliance: Measurement Methods and Practice, was adopted by the Digital Radio Broadcasting (DRB) Subcommittee which is co-chaired by Andy Laird, vice president and chief technology officer, Journal Broadcast Group, and Mike Bergman, vice president of new digital technologies, Kenwood USA. It was developed by the subcommittee's IBOC Standards Development Working Group (ISDWG) which is chaired by Dom Bordonaro, chief engineer, Cox Broadcasting - Connecticut.

Geoff Mendenhall, VP Transmission Research and Technology at Harris, and Harris' representative to the NRSC, led the ISDWG sub-group responsible for the updated portions of the Guideline, which describe a new, standardized method for determining the transmission quality of an FM IBOC signal called Modulation Error Ratio (MER). Broadcasters can use MER to assess the performance of their transmission facility and to potentially identify problems resulting in a less-than-optimum signal. This Guideline update is based upon measurement techniques described in a new "reference document" from iBiquity Digital Corporation entitled Transmission Signal Quality Metrics for FM IBOC Signals.

This updated Guideline will help the industry better understand MER as transmission and signal measurement equipment manufacturers are expected to soon offer the industry new and improved devices incorporating MER techniques. The document will be available on the NRSC's Web site., following a final procedural review which will take approximately two weeks. Additional information about the NRSC, including information on becoming a member, is also available on the web site.

About CEA
The Consumer Electronics Association (CEA) is the preeminent trade association promoting growth in the $172 billion U.S. consumer electronics industry. More than 2,000 companies enjoy the benefits of CEA membership, including legislative advocacy, market research, technical training and education, industry promotion and the fostering of business and strategic relationships. CEA also sponsors and manages the International CES - Where Entertainment, Technology and Business Converge. All profits from CES are reinvested into CEA's industry services. Find CEA online at

About NAB
The National Association of Broadcasters is the premier advocacy association for America's broadcasters. NAB advances radio and television interests in legislative, regulatory and public affairs. Through advocacy, education and innovation, NAB enables broadcasters to best serve their communities, strengthen their businesses and seize new opportunities in the digital age. Learn more at


National Association of Broadcasters
1 M Street SE
Washington, D.C. 20003
202 429 5300 |

© 2024 National Association of Broadcasters
Privacy Policy | Terms of Use

Connect With Us