
FCC Denies Wireless-Microphone Makers' Plea for Vacant Spectrum Availability The action also spotlights new WMAS spectrum-efficient wireless technology By Dan Daley, Audio Editor
Friday, May 20, 2022 - 7:10 am
Print This Story | Subscribe
Story Highlights
In an Order on Reconsideration issued on May 11, the Federal Communications Commission denied a request from microphone-systems manufacturers Sennheiser and Shure to sustain a vacant channel in the TV bands reserved for wireless-microphone use. That channel was part of the FCC's landmark 2015 Notice of Proposed Rulemaking intended to outline the post-auction landscape for wireless microphones.
In issuing the 2015 Notice, the FCC acknowledged that there would be fewer unused television channels in the TV bands post auction and after spectrum repacking, but it expected that at least one channel in the UHF band would be available for shared use by unlicensed white-space devices or wireless microphones. The matter engendered a lengthy legal and technical back-and-forth. In the ensuing debate, broadcasters argued against the idea, contending that the FCC's 2015 proposal would limit future expansion and innovation potential for full-power TV stations. Broadcasters also said the proposal would require novel engineering studies that would be expensive and time-consuming, particularly for smaller broadcasters.
In responding to the most recent ruling, wireless-microphone users and those who make that equipment contended that the provisions for those wireless devices were necessary, expressing strong support for the important functions performed by wireless microphones and support for the designation of one UHF channel for wireless-microphone use, as per the Order On Reconsideration. Issues are identified regarding the adequacy of higher-frequency alternatives to a vacant UHF channel, as well as the past costs imposed on wireless-microphone users when spectrum availability was moved.
The National Association of Broadcasters, on the other hand, had argued that the preservation of at least one vacant channel on a nationwide basis is no longer achievable and that it was entirely appropriate to close this proceeding in light of the burdens to broadcasters.
Both Shure and Sennheiser filed replies to NAB's opposition, with Shure suggesting that a vacant channel for wireless microphones be preserved in every market where at least two vacant channels are available. Sennheiser also filed an ex parte disagreeing with the commission's assertion in the Termination Order that there is currently no vacant 6-MHz channel in multiple major metropolitan areas and including information purporting to identify a vacant channel suitable for wireless microphones used in nearly every top-50 market.
Ultimately, the FCC determined, We find that adoption of the rules proposed in the 2015 NPRM would not strike the most reasonable balance that would best serve the public interest. We make this determination in light of other actions taken by the Commission since the 2015 NPRM that will support wireless-microphone users and the burdens that the proposal would impose on broadcasters. Because we agree that the totality of these circumstances support the findings in the Termination Order, we reject the Petitioners' claim that the Commission's action was arbitrary and capricious.
However, the commission added, Although we have concluded that we should not proceed with the proposals in this docket, the Commission is committed to supporting white-space devices and wireless microphones and has pursued, and continues to pursue, avenues to ensure adequate spectrum availability for the important services they provide.
In fact, as part of its statement, the FCC said it has continued to pursue paths to support access to spectrum by wireless-microphone users, citing a 2021 Notice of Proposed Rulemaking for the operation of Part 74 low-power auxiliary station (LPAS) devices to permit a recently developed type of wireless-microphone system, referred to as a Wireless Multi-Channel Audio System (WMAS), to operate in the TV bands and other LPAS frequency bands on a licensed basis. The emerging technology, already permitted in Europe under the applicable European Telecommunications Standards Institute (ETSI) standards, would enable more wireless microphones to operate in the spectrum available for wireless-microphone operations, and thus advances an important Commission goal of promoting efficient spectrum use.
The technology, which would enable more microphones per megahertz of spectrum, is currently under consideration by the FCC. A Notice of Proposed Rulemaking, issued in April 2021, sought public comment on allowing WMAS on a licensed basis in frequency bands where wireless microphones already are authorized, including the TV bands, the 600 MHz duplex gap, and in portions of the 900 MHz, 1.4 GHz, and 7 GHz bands.
By digitally combining multiple signals, WMAS - promoted by Sennheiser, Shure, and other manufacturers - allows microphones to operate using wider-bandwidth channels than currently allowed. It will be a game-changer, says Joe Ciaudelli, director, spectrum and innovation, Sennheiser. [It] offers an easier and more flexible workflow and provides greater protection to other services that share the same frequency band. We applaud that the commission seems to be entertaining our Petition for Rulemaking to authorize WMAS, but it's only part of the equation in addressing the needs of content-creation professionals. [As with] any wireless device, access to suitable spectrum is required. Sennheiser will continue to work with the commission on developing long-term solutions.
Additionally, the commission recently upheld slightly modified requirements intended to protect licensed wireless-microphone users from interference
Most recent headlines
05/01/2027
Worlds first 802.15.4ab-UWB chip verified by Calterah and Rohde & Schwarz to be ...
09/10/2026
September 10 2026, 06:00 (PDT) Dolby Expands Dolby OptiView Platform with New Capabilities at IBC 2026
New Sports Intelligence helps providers better unders...
07/10/2026
Dalet, a leading technology and service provider for media-rich organizations, today announced the latest Long-Term Supported (LTS) release of Dalet Flex. Build...
24/09/2026
Broadcast Management Group (BMG) is supporting Virginia Public Media (VPM), the ...
24/09/2026
RED Digital Cinema's RED V-RAPTOR [X] and RED V-RAPTOR XL [X] cameras with the Phantom Track feature are the first cameras to receive GhostFrame Pro Certifi...
24/09/2026
Bringing together the full family of networks, FOX Sports is also adding Tubi, F...
24/09/2026
Virginia Polytechnic Institute and State University (Virginia Tech) has unveiled...
24/09/2026
The blog collects SVG's reporting on AI across U.S. and European sports broadcasting
Since SVG launched the AI Innovation Lab in April to advance the devel...
24/09/2026
SVG's annual TranSPORT conference, which will be held on Tuesday, Oct. 20 in...
24/09/2026
The self-built Master Control Room has cut streaming operations incident-respo...
24/09/2026
Ortana Media Group, the software systems integrator behind the Cubix workflow platform, has connected AudioShake's audio separation models to ScorePlay thro...
24/09/2026
AudioShake has released Multi-Speaker 2.0, the company's newest Multi-Speaker model, which removes 75% more noise and offers 32% better separation of overla...
24/09/2026
By Jon Morgan, Founder and Executive Producer, Ryval Studios
For Major League B...
24/09/2026
Spectrum SportsNet has revealed its comprehensive programming and live game broa...
24/09/2026
The Charlotte Hornets has unveiled new broadcast partnerships with Gray Media an...
24/09/2026
DAZN will be the exclusive direct-to-consumer streaming partner for the Detroit Pistons beginning with the 2026-27 season. Subscriptions are available at DAZN.c...
24/09/2026
The National Hockey League (NHL) has made an agreement with Spectrum that will allow Spectrum TV customers in the Minnesota Wild local broadcast territory to wa...
24/09/2026
The Carolina Hurricanes has reached a multi-year distribution agreement to provi...
24/09/2026
The St. Louis Blues has introduced Blue Note as the name of the new, exclusive ...
24/09/2026
Blue Jackets Hockey Network, the television home for Blue Jackets hockey, is coming to Spectrum TV under a new carriage agreement between the National Hockey Le...
24/09/2026
The next generation of multitrack recording for live sound
The latest version of Waves' dedicated live multitrack recording software delivers an array ...
24/09/2026
An idea machine for musicians
Described as an idea machine for musicians , the latest addition to Polyend's growing collection of guitar pedals combin...
24/09/2026
Alignment tool gains multitrack layout
Synchro Arts have just launched the latest version of their renowned time-alignment plug-in, and it's said to be ...
24/09/2026
Synth gains DAW Control & Ctrl-e integration
Expressive E have just released a major firmware update that brings some interesting new features to the Osmose...
24/09/2026
Rohde & Schwarz expands its system amplifier portfolio with the R&S SAM200 for a...
24/09/2026
September 24, 2026
The Hitachi Startup Challenge FY26 invites innovative startu...
24/09/2026
Download Now!
To receive a short case study showcasing NHK Technologies, Inc. (NT) s audio setup, please enter the following details:
--
First Name* Fir...
24/09/2026
Manifold Technologies Appoints Ryhaan Williams as CCO for North America
Brie Clayton September 24, 2026
0 Comments
Brings three decades of broadcast e...
24/09/2026
UNIFACHA Expands Educational Program with DaVinci Resolve Studio
Brie Clayton September 24, 2026
0 Comments
Brazilian university empowers next generat...
24/09/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
24/09/2026
Viewers watching videos from the Austrian Parliament online will soon find it easier to verify the authenticity of the content. Big Blue Marble, an internationa...
24/09/2026
nsign, the digital signage SaaS platform built around its Simplify Complexity principle, is now officially certified for BRAVIA Professional Displays from Son...
24/09/2026
Encompass Digital Media today announced the successful migration of multiple Viaplay free-to-air channels, including TV3, TV6, TV8 and TV10, to its Altitude Sch...
24/09/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
24/09/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
24/09/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
24/09/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
24/09/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
24/09/2026
Music Supervisor, Composer, and Mixing Engineer Santiago Uribe has built a career around producing music for film and television, contributing to more than 40 p...
24/09/2026
The North American Broadcasters Association (NABA) will hold a full-day cybersecurity summit focused on defending against growing cyber threats facing the broad...
24/09/2026
London, 24th September 2026: UKTV has commissioned an eighth series of Canal Boat Diaries (8x60') for U (u.co.uk) and U&YESTERDAY, with waterways explorer R...
24/09/2026
September 24th, 2026 TRIBECA FESTIVAL AND AT&T OPEN SUBMISSIONS FOR 10TH ANNIVE...
24/09/2026
Reinaldo Marcus Green, director of six-time Academy Award-nominated King Richard...
24/09/2026
From the buzz of your phone when a message arrives to surgeons being able to feel' the patients they are examining from hundreds of kilometres away, these ...
24/09/2026
As Q4 approaches, retailers enter the most critical sales window of the year the golden quarter.
Stretching from October through December, this period encomp...
24/09/2026
Key Takeaways
Harmonic's cOS virtualized platform enables Lightcurve to de...
24/09/2026
COLD Launches Insider Club on Supercast, Giving True Crime Fans Ad-Free Listenin...
24/09/2026
The home interiors retailer signs up for third year as sponsor
RT Commercial today announced that Harry Corry has signed up to a third year as sponsor of Live...
24/09/2026
When COVID-19 emerged, scientists had a crucial advantage: Decades of prior research on coronaviruses meant they understood the virus' key proteins well eno...
24/09/2026
RT Radio 1 Folk Awards Tickets on Sale
Dolores Keane to be inducted into the...