September 9, 2008
Radio Data System (RDS)
RDS is a standard for sending small amounts of digital information using conventional FM radio broadcasts.
Widely used in Europe, but less so in North America, the RDS system standardizes several types of information transmitted, including time and station identification.
Radio Broadcast Data System is the official name for the U.S. version of RDS, though the “RDS” name seems to be at least as common in usage.
The two standards are nearly identical, with only slight differences, mainly in which numbers are assigned to each of 31 musical and other program formats the RBDS system can identify.
Both use a 57 kHz sub-carrier to carry data at 1187.5 bits per second to prevent interference or inter-modulation.
Written by: Onuora Amobi
Filed Under: Uncategorized
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