ATSC 3.0

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ATSC 3.0 is a major version of the ATSC standards for terrestrial television broadcasting created by the Advanced Television Systems Committee (ATSC). The standards are designed to offer support for newer technologies, including High Efficiency Video Coding (HEVC) for video channels of up to 4K resolution (2160p) at 120 frames per second, wide color gamut, high dynamic range, Dolby AC-4 and MPEG-H 3D Audio, datacasting capabilities, and more robust mobile television support. The capabilities have also been foreseen as a way to enable finer public alerting and targeted advertising. The first major deployment of ATSC 3.0 occurred in South Korea in May 2017, in preparation for the 2018 Winter Olympics. In November 2017, the FCC passed rules allowing American broadcast stations to voluntarily adopt ATSC 3.0 ("Next Gen TV"), provided that full-power stations preserve the availability of their programming in their city of license via legacy ATSC signals; adoption is being steered by the broadcasting industry, without a mandatory transition as there was from analog NTSC to ATSC. Other adoptions have since occurred in Jamaica and Trinidad and Tobago (which are both transitioning from analog television), and Brazil ("DTV+", which is succeeding ISDB-T International).