U.S. radio broadcasters are banking on HD Radio — which transmits digital signals over normal AM and FM bands — as a crucial weapon in their battle with satellite broadcasters. But so far the response from listeners has been lukewarm. Not so in the United Kingdom, where similar technology — known simply as “digital radio” — has become hugely popular. With radio giant Clear Channel recently launching a new digital partnership with Microsoft, is this the year that HD Radio will take off in the United States?
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