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Listeners soon could be tuning in to the same Lansing radio station for up to four different programming signals. Led by Michigan State University's student-run WDBM and public broadcaster WKAR, mid-Michigan stations are upgrading their equipment to begin broadcasting in digital HD Radio. "There's potential to double or triple the radio streams in Lansing without anyone paying - other than buying the radio," said Curt Gilleo, station manager at WKAR-AM and FM in East Lansing. Thanks to the compression of data that's possible with digital technology, a station that uses HD Radio can send up to four different signals while still using the frequency it already broadcasts on... Radio dials up digital: Stations can send multiple signals on same frequency (Tue 8/8)
