ATSC3.0 ,Over-the-air broadcast is still very much alive, with a new standard that enables everything from 4K resolution to ac4 Dolby audio
(1)The first major benefit is picture quality. While the current ATSC 1.0 standard caps out at 1080i, the new atsc3.0 standard allows for 4K UHD broadcasts. Other picture quality upgrades, including high dynamic range (HDR), wide color gamut (WCG), and high frame rate (HFR) are all part of the new provision.
(2)ATSC 3.0 also includes benefits for reception, meaning you should be able to receive more channels of higher quality without the need for a large antenna. Audio quality is increased as well. While ATSC 1.0 uses Dolby AC-3 — an audio format that is limited to 5.1 channel surround sound — ATSC 3.0 uses the newer Dolby AC-4 for broadcasts of up to 7.1.4 channel audio, and it supports object-based sound formats like Dolby Atmos.
(3)Right now, ATSC 3.0 uses the H.265 HEVC codec for video delivery because of its efficiency gains over the much older H.262 MPEG-2 codec used in ATSC 1.0.
(4)In addition to the picture and audio improvements, ATSC 3.0 also makes it possible to watch broadcast video on mobile devices like phones and tablets, as well as in cars. Advanced emergency alerts are also part of the standard, including better geotargeting, which means advancements like the ability to broadcast evacuation routes to areas that need that information.