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Digital Audio Broadcasting (DAB) is a digital radio standard for broadcasting digital audio radio services in many countries around the world, defined, supported, marketed and promoted by the WorldDAB organisation.
數位聲音廣播（英語： Digital Audio Broadcasting，英文縮寫為「 DAB 」）亦被稱為尤里卡147（EUREKA 147），是有些國家使用於電台廣播的一項數位技術。 自2006年以來，全世界約有1,000個電台採用DAB技術用於廣播。
Digital radio is the use of digital technology to transmit or receive across the radio spectrum. Digital transmission by radio waves includes digital broadcasting, and especially digital audio radio services. Example of a digital radio
Under digital broadcast technology, 6 voice channels could be transmitted in a same radio frequency which could only carry 1 voice channel in the analogue one. Under current broadcast environment where all radio spectrum are fully utilized, this is certainly a good news.
Digital Audio Broadcasting (DAB) is designed for delivery of high-quality digital audio programmes and data services for mobile, portable and fixed reception from terrestrial transmitters in the Very High Frequency (VHF) frequency bands.
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