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Radio Data System (RDS) decoder

Radio Data System (RDS) decoder
Since our first publication on RDS almost two years ago, the system has met with rapid acceptance by European radio broadcasters. At the time of writing this follow-up article, the experimental status of RDS on which we reported earlier ls nearly ended, and there are currently car radios as weil as FM tuners that can be bought with an RDS decoder as a bullt-in feature. For all of you who have a perfectly working FM radio without an RDS demodulator/decoder we present two add-on circuits, an RDS demodulator and an RDS decoder, that implement the main features of this new service with the aid of an LCD read-out.
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