Microsoft Wants Recon of ATSC 3.0 DTS Order

The FCC order relaxing interference rules for distributed transmission systems was a “misstep” and “includes significant factual errors, and contradictions,” said Microsoft in a petition for reconsideration of the ATSC 3.0-friendly change posted in docket 20-74 Monday. Adopt an expedited waiver process for broadcaster use of DTS that creates signal spillover exceeding "a minimal amount," Microsoft asked. The expedited waiver proposal was endorsed by then-Commissioner Jessica Rosenworcel and fellow Democrat Geoffrey Starks when the DTS order was approved 3-2 in January 2021 (see 2101190078), in one of the final acts under Ajit Pai. That FCC “impermissibly overlooked the substantial impacts to TVWS [TV white spaces] from the significantly increased range of DTS signals even without interference protection,” said Microsoft: Allowing “significantly more spillover by DTS transmitters outside of a broadcaster’s service area would greatly increase interference to TVWS operations."