Sony Pixel Power calrec Sony

NAB Urges FCC to Protect Broadcasters from White Space Interference

04/06/2020

WASHINGTON-NAB, in reply to comments regarding the FCC's TV white space (TVWS) device proposed rulemaking notice, told the commission that consistent with Part 15 rules and as a matter of law that harmful interference from an unlicensed service must not be allowed to cause harmful interference to licensed users.

In the filing, the association said it and Microsoft had worked for several months to negotiate a set of beneficial adjustments to the FCC's existing rules that would allow improvement in TVWS service while protecting TV broadcasters from interference.

Unfortunately, some commenters seek to expand the scope of this proceeding into areas that have already been fully debated and where there have been no new developments that would warrant changes, said NAB in its comments.

The baseline for any adopted rule changes must be that they don't increase the risk of harmful interference, it reiterated.

The association urged the FCC to dismiss what it dubbed extraneous proposals, such as alternative propagation models, power increases and reduced frequency coordination requirements, because the agency cannot conclude they will not increase the potential for harmful interference, the filing said.

PLUS: Senators Push for FCC Action on White Spaces

In opposition to the assertion of the Public Interest Spectrum Coalition (PISC) and the Wireless Internet Service Providers Association (WISPA) that television service is overprotected based on free-space propagation models and worst-case assumptions about TV receiver performance, NAB told the FCC that contour protection is the only reasonable way to protect consumer TV receivers, which operate as hidden nodes.

NAB reminded the FCC that the contours used to protect TV service in an area are from the empirically derived R-6602 propagation curves as codified in the Commission's rules, not on free-space propagation.

Further, it told the FCC that TVWS protection requirements are relaxed when compared to the commission's other broadcast protection rules. It also disputed a WISPA assertion that ATSC 3.0 is more robust against interference, saying there is no basis for the statement.

The Commission should not change its protection methodology with respect to television receivers until a far more substantial technical record based on real world experience with ATSC 3.0 deployments is available, NAB said.

The association told the FCC that it should not permit increased transmitter power for TVWS devices. Doing so inevitably will lead to inadvertent or intentional overpower operation, it said.

NAB also told the commission that it should allow geo-fenced TVWS operation but that restrictions are warranted and that the protection distances for T-Band land-mobile radio protection should be increased.

The association recommended the FCC adopt Microsoft's proposed coordination requirement for TVWS operations where the height above average terrain (HAAT) exceeds 250 meters.

NAB continues to believe that the alternative notification process suggested in the NPRM will lead to interference that will be difficult to identify, it said. However, if the commission favors the notification process rather than Microsoft's proposed coordination procedures, the advanced notice should be longer than 48 hours.

NAB also urged the FCC to maintain rules for first-adjacent channel operation. Microsoft submitted test results it said supported allowing higher power on first-adjacent channels. NAB countered that those tests only used 2018-2019 model TV receivers, which provides no useable information whatsoever with respect to older receivers, NAB said.

Similarly, Microsoft used an ATSC 3.0 dongle costing about $1,000 and marketed as a professional grade receiver to test first-adjacent channels with respect to NextGen TV. The consumer ATSC 3.0 receiver market is plainly in a nascent stage, and without a wider base of tested receivers the Commission cannot draw any conclusions about the susceptibility of future 3.0 receivers to interference, it said.

NAB also asked the commission to reject adjustments to TVWS protections based on the use of directional antennas. While it agrees that directional antennas can reduce the potential for interference, there is absolutely no way of determining whether a directional antenna has been installed properly without the help of a licensed land surveyor, it said.

NAB concluded by urging the FCC to move forward in an expeditious manner with the proposals set forth in the NPRM that are uncontroversial and technically supported.

The NAB comments are available in full online.
LINK: https://www.tvtechnology.com/news/nab-urges-fcc-to-protect-broadcaster...
See more stories from tvtechnology

North America Stories

02/09/2026

IBC2026 puts sport at the winning end of media innovation

IBC2026 will put sport firmly at the centre of the global media and entertainment technology conversation with the strongest sports showing in the event's h...

02/09/2026

PTZOptics Demonstrates the Power of Intelligent Multicame...

PTZOptics will bring a hands-on showcase of intelligent video production to IBC2026 (11-14 September, RAI Amsterdam), with demonstrations spanning new camera te...

02/09/2026

OOONA Launches OOONA Go

OOONA, a global provider of professional management and production tools for the media localization industry, today announced the launch of OOONA Go, a ready-to...

02/09/2026

EON Media launches AI media activation and monetization s...

EON Media will make its European debut at IBC2026 (September 11-14, RAI Amsterdam) in the show's Future Tech Zone (Hall 14.FT5). The company is launching it...

02/09/2026

Frequency Defines the Intelligent Channel at IBC2026

Frequency, the engine behind many of the worlds leading streaming television channels, will demonstrate at IBC2026 how integrating intelligence throughout chann...

02/09/2026

FOR-A Introduces Go Vertical AiDi and AiDi Sports Hub Und...

On-device AI platform gives broadcasters and content creators purpose-built tools for real-time vertical video production and AI-enhanced sports coverage...

02/09/2026

Shotoku To Introduce Aura E2 PTZ Elevator At IBC2026

Share Copy link Facebook X Linkedin Bluesky Email...

02/09/2026

AJA to Launch New openGear SDI/Fiber Conversion Cards at IBC2026

Share Copy link Facebook X Linkedin Bluesky Email...

02/09/2026

GoPro to Merge with Starman Optical

Share Copy link Facebook X Linkedin Bluesky Email...

02/09/2026

AIMS, EBU Completes Latest IPMX Certification Testing

Share Copy link Facebook X Linkedin Bluesky Email...

02/09/2026

EVS To Showcase New Neuron 4X Processor At IBC 2026

Share Copy link Facebook X Linkedin Bluesky Email...

02/09/2026

Sony Launches 100+ FAST Channels on Playstation 5 in the U.S.

Share Copy link Facebook X Linkedin Bluesky Email...

02/09/2026

Canon Unveils PTZ Camera Firmware Updates

Share Copy link Facebook X Linkedin Bluesky Email...

02/09/2026

EverPass Media Expands NFL Offering with Netflix Deal

Share Copy link Facebook X Linkedin Bluesky Email...

02/09/2026

Imagine Communications Unveils Latest Control Portfolio A...

Next-Generation Freeform Control Surfaces Lay the Foundation for AI-Enabled Media Operations At IBC2026 (Sept. 11 14, RAI Amsterdam, Stand #1.B73), Imagine Com...

02/09/2026

Friedrichstadt-Palast Relies on Riedel for IP-Centered Pr...

Friedrichstadt-Palast in Berlin, the world's largest theater stage, has modernized its backstage production infrastructure with a comprehensive Riedel solut...

02/09/2026

WiM to Host Reel Forward Production Conference at CSU Los...

Women in Media announces that it will host the two-day Reel/Forward in-person conference devoted to navigating today's production scene. Guests can enjoy pa...

02/09/2026

Teradek and New Media AV Expand Partnership with Full Liv...

The expanded partnership brings Teradek's Live Production solutions to New Media AV's European dealer and integrator network, opening new opportunities ...

02/09/2026

QuickLink Expands StudioEdge With WhatsApp Cisco Webex an...

QuickLink, a leading provider of award-winning video production and remote guest contribution solutions, announces a major expansion to its award winning Studio...

02/09/2026

Vipe by BCNEXXT Gives Foxtel a New Playout Model for its...

BCNEXXT, the developers of the advanced playout platform Vipe, today announced that premium entertainment brand Foxtel has selected Vipe to underpin playout for...

02/09/2026

HOT Telecommunications supercharges localisation efficien...

SubtitleNEXT helps HOT Telecom's subtitling team keep a cool head with reliable QC capabilities Profuz Digital, global developer of digital media and local...

02/09/2026

Case Study - Mission Digital Strengthens Battery Safety w...

Case Study: Mission Digital Strengthens Battery Safety with Safe-ion As productions become increasingly dependent on battery-powered equipment, the safe storag...

02/09/2026

New design strategy expands nanoparticle vaccine approach to influenza viruses

LA JOLLA, CA-Influenza viruses constantly shapeshift to evade recognition by the immune system. This shapeshifting occurs in critical proteins like hemagglutini...

02/09/2026

New AI algorithm could improve detection and prediction of heart diseases

LA JOLLA, CA-Clinicians often use a medical test called a 12-lead electrocardiogram (ECG) to diagnose heart problems, which uses electrodes placed on the chest ...

02/09/2026

Where milliseconds matter: Scripps Research scientists build new ML model to predict protein movements essential for biological function

LA JOLLA, CA-Proteins may look like rigid molecular structures, but inside our c...

01/09/2026

IBC 2026: Bridge Technologies Adds Blackmagic IP10 Support to VB440 Production Probe

Bridge Technologies will announce at IBC2026 (Booth 1.A71) that its VB440 produc...

01/09/2026

DAZN to Acquire EverPass Media to Expand U.S. Commercial Venue Distribution

DAZN has announced an agreement to acquire EverPass Media, a commercial sports distribution platform serving bars, restaurants, hotels, and other venues in the ...

01/09/2026

Kalshi Named Official Prediction Market Partner of the US Open

The USTA and Kalshi have announced a multi-year partnership making Kalshi the Official Prediction Market Partner of the US Open, beginning with the 2026 US Open...

01/09/2026

IBC 2026: MASV to Showcase Sports Video Transfer Workflows

MASV will exhibit at IBC2026 (Booth 5.B40, RAI Amsterdam, September 11-14). CTO Majed Alhajry will appear on a panel session, A Tale of Two Feeds: Automation o...

01/09/2026

IBC 2026: FingerWorks Telestrators Partners with Broadcast Rental for European Distribution

FingerWorks Telestrators has announced a partnership with Broadcast Rental to ex...

01/09/2026

IBC 2026: FOR-A Expands viztrick AiDi into Two Dedicated Products

FOR-A has announced the expansion of viztrick AiDi into two dedicated products: Go Vertical! AiDi and AiDi Sports Hub. Developed by Nippon TV and delivered glob...

01/09/2026

Sony Launches Live TV on PS5 with Free Ad-Supported Streaming in the U.S.

Sony Pictures Television has launched Live TV on PS5, a free ad-supported streaming experience available to PS5 players in the United States. The service is acc...

01/09/2026

Friedrichstadt-Palast Installs Riedel Production Infrastructure

Friedrichstadt-Palast in Berlin has installed a Riedel production infrastructure spanning video, intercom, control, and I/O across the venue, implemented in col...

01/09/2026

IBC 2026: Arkona Partners with BFE for Arkona-Branded Control Panels

Arkona technologies GmbH has announced an OEM partnership with BFE Studio und Medien Systeme GmbH to offer arkona-branded control panels for its SDI-IP routing ...

01/09/2026

Cricket Australia Launches Cricket TV Streaming Service on Eluvio Platform

Cricket Australia has launched Cricket TV, a direct-to-consumer streaming service built on Eluvio's Content Fabric platform. The service is currently in ear...

01/09/2026

Eluvio Selected to Power Pasifika+ Streaming Service for Pacific Island Communities

Eluvio has announced it was selected to power Pasifika , a new direct-to-consume...

01/09/2026

Layercake Names Jon Marquard as Director/Chairperson

Layercake, the company behind the intelligent media workflow platform Streamcake, has appointed Jon Marquard as Director and Chairperson. The appointment marks ...

01/09/2026

Gravity Media Extends Powercor Stawell Gift Broadcast Agreement Through 2031

Gravity Media has announced a multi-year renewal of its agreement with Stawell Gift Event Management to produce the complete broadcast of the Powercor Stawell G...

01/09/2026

IBC 2026: Beam Dynamics Makes Debut with License Intelligence Module

Beam Dynamics will exhibit at IBC2026 for the first time (Stand 14.FT29, Hall 14), introducing License Intelligence, a new module for managing software licenses...

01/09/2026

ZOO Digital Selects Interra Systems BATON for File-Based Quality Control

Interra Systems has announced that ZOO Digital has selected BATON for file-based quality control across its media workflows. ZOO Digital delivers localized ente...

01/09/2026

IBC 2026: Bridge Technologies Deploys VB330 Monitoring at Sunrise

Bridge Technologies has announced the deployment of its VB330 monitoring probe at Sunrise, supporting the Swiss telecommunications provider's IP-based telev...

01/09/2026

Riedel Expands Coach Communications Partnership with Scottish Rugby Union

Riedel Communications has announced the continued expansion of its managed coach communications partnership with Scottish Rugby Union, now entering its third se...

01/09/2026

Behind The Mic: Football Season Approaches, as Networks Name On Air Talent for NFL, College Broadcasts

Behind The Mic provides a roundup of recent news regarding on-air talent, includ...

01/09/2026

IBC 2026: SMPTE Brings Full-Day Software-Defined Infrastructure Roadshow

SMPTE today detailed the centerpiece of its IBC2026 program: the SMPTE Roadshow: Future of Media Infrastructure, a full-day workshop on Monday, 14 September, th...

01/09/2026

Nielsen Announces New Local Methodology Enhancements

New York August 31, 2026 Nielsen is announcing four new local methodology enhancements that will be activated into Local TV currency data starting today, Au...

01/09/2026

Broadcasters Gain Flexibility in Pursuit of 5G Multicasting

Share Copy link Facebook X Linkedin Bluesky Email...

01/09/2026

Winning the Fight Against Churn

Share Copy link Facebook X Linkedin Bluesky Email...

01/09/2026

How Multiviewers Are Evolving Into Information Hubs'

Share Copy link Facebook X Linkedin Bluesky Email...

01/09/2026

IBC2026: New Audio Tools on Tap from Telos Alliance

Share Copy link Facebook X Linkedin Bluesky Email...

01/09/2026

SMPTE Roadshow to Examine Media Infrastructure at IBC2026

Share Copy link Facebook X Linkedin Bluesky Email...