OK, so there's dab, but there's also DAB, which is changing the face of radio. DAB stands for 'Digital Audio Broadcasting' and it's doing to radio what HD did for TV - switching from analog radio signals to video. It's controversial. As this article notes, Norway is switching from FM to DAB, a move opposed by many because it renders millions of radios (and especially car radios) obsolete. But proponents say the audio quality is better and more channels can be broadcast. The key issues are coverage (since DAB is little-used in many countries (and not at all in Canada)) and receivers (since DAB requires more power to receive). For more see WorldDAB.
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