ATSC Broadcasting

Solutions for a Changing Business

As ATSC broadcasters review options to meet the obligations of new Channel Sharing Agreements, or the migration to the next-generation ATSC 3.0 standard, they can rely on Harmonic to provide cost-effective, future-proof solutions for adapting to a rapidly evolving environment.

The Future Is Now

Harmonic ATSC solutions support today’s ATSC 1.0 operations and ease the transition to tomorrow’s advanced service deployments powered by ATSC 3.0. From channel sharing to delivering over-the-air Ultra HD content, as well enabling live OTT streaming, Harmonic is the one company with the ability to help you overcome today’s complex business challenges — and meet tomorrow’s with superior flexibility, scalability and low total cost of ownership.

Highlighted Applications

Channel Sharing

Harmonic offers a complete range of solutions for ATSC broadcasters entering into CSAs. Whether you’re an existing user of our Electra encoders or a broadcaster exploring virtualized options for your operation, a Harmonic channel-sharing solution will help you achieve and maintain superior video quality, optimize bitrate usage, and assure that you and your CSA partners honor the requirements of your agreement.

ATSC 3.0

The next-generation ATSC 3.0 standard will usher in a range of new capabilities for broadcasters, including HEVC and Dolby AC-4 audio compression to provide more immersive viewing experiences. UHD with high dynamic range (HDR) and wide color gamut, better sound and OTT multiscreen delivery all figure into this new paradigm. No company is better able to help you transition to ATSC 3.0 than Harmonic.


Harmonic multiscreen video solutions give ATSC broadcasters the tools to unify their OTA and OTT delivery workflows. Our OTT video solutions perform a wide range of functions and support the industry’s most popular internet and mobile formats, delivering to your viewers the compelling experience they demand — on any device.

Ultra HD

A Harmonic UHD ecosystem flexibly integrates all phases of the broadcast chain, including live and file ingest, collaborative post production, playout, encoding and time-shifting, allowing broadcasters to implement capabilities at a pace that makes sense for their business.


ATSC 3.0


Once ATSC 3.0 is approved and commercial TV stations begin the migration process, they’ll be able to deliver better pictures with 4K UHD and 1080p resolution along with HDR and WCG. An important part of this testing process is ensuring the integrity of those images with the best possible fidelity for our viewers, and Harmonic’s HEVC encoders have proven to fulfill that need.

Pete Sockett, director of engineering and operations, WRAL-TV

Harmonic Workflow for ATSC Channel Sharing Among Two Stations