FCC TV Repack & ATSC3 Considerations

Presenter Ben Creese & Mark Fehlig, Jampro
Where: WSB TV Studios
1601 W. Peachtree St. NW
Atlanta, Georgia 30309
Date: October 23, 2017
Time: 6:30 PM - 7:00 PM  Dinner
7:15 PM - 9:00 PM Presentation
Sponsorship: Jampro
Info: The now concluded FCC DTV Channel auction and subsequent repack channel assignments put into play a multi-year plan/project to rechannel approximately 1000 full power DTV stations. More opportunities are added for channel sharing and LPTV/translator operations into the future. This channel changing may require multiple antenna and tower modifications such as broadband full channel slot antennas to minimize tower loading. Additional intrigue is added by a closely scheduled adoption of a channel incompatible transmission update called ATSC3, a successor to the 20 year old ATSC1 now on the FCC broadcast DTV airwaves. The FCC intends to allow ATSC3 transmission on a voluntary basis and the chase is on to make this a commercial success. ATSC3 is the newest of digital video and data payload transmission systems and incorporates upgrades to adaptable OFDM modulation, SFN (single frequency network) coverage advantages, IP transport, 4K HEVC Video, AC4 Immersive audio and more.

The international terrestrial broadcast community has long used OFDM from the earliest of the EBUs DVBT and now T2 standards. Such an OFDM based standard is best positioned for SFN operations and is quite similar to the new ATSC3 standard. Similarities to international SFN networks and the additional crest factor transmitter headroom to run with ASTC3 is basic to DVBT2 requirements and so compared.

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