Which digital television system is primarily used by broadcasters in the United States?

The Advanced Television Systems Committee (ATSC) is the digital television system primarily employed by broadcasters in the United States. This standard was developed to facilitate the transition from analog to digital broadcasting, providing improved picture quality, sound quality, and the ability to broadcast multiple channels within the same bandwidth.

ATSC supports high-definition television (HDTV) as well as standard-definition television (SDTV) and includes advanced features such as dynamic range, multi-channel audio, and support for various aspect ratios. This has made it the dominant standard for digital broadcasting in the U.S., allowing for innovative applications in broadcasting technology.

Other systems like DVB, ISDB, and DTMB are used in various countries around the world but are not primarily used in the United States. DVB is mainly utilized in Europe, ISDB is the standard in Japan and parts of Latin America, and DTMB is employed in China. Each of these systems has its unique features and implementations suited to the regions they serve, but ATSC remains the key standard that defines digital television broadcasting in the U.S.