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XM over HD!
XM Radio has applied for a patent that would allow them to broadcast direct to HD: XM has hundreds of terrestrial stations in cities to supplement their satellite signal, which is one of the dirty little secrets of "satellite" broadcasting. Concrete canyons prevent good satellite reception. On the open road, satellites can be "seen" quite easily. FMQB reports that the patent would allow direct digital broadcast to HD Radio without analog conversion through a car adapter that reduces quality.
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