Radio Data System

Radio Data System, or RDS, is a standard for sending small amounts of digital information over conventional FM radio broadcasts. RDS also standardizes a number of types of information transmitted using the system, including time, station identification and similar information. RDS is widely used in Europe. While an almost-identical system is available in North America, known as RBDS, it is not widely used there.

The following information fields are normally contained in the RDS data - See also (PDF) RDS Features Serving as Tuning Aids:

• AF, Alternate frequencies.
• CT, Clock Time.
• EON, Enhanched Other Networks
• PS Program Service
• PTY, Program Type.
• REG, Regionale links
• RT, Radio Text, Radiotekst.
• TA, TP, Travel announcements
• TMC, Traffic Message Channel. Demands a RDS-TMC decoder.

See also: DirectBand

External links:

• Radio Data System (RDS) PDF (13kb)
• Yahoo: rdsforum

Technical RDS-TMC (External addresses)

• 2.4 RDS-TMC Standards
• Traffic Message Channel (TMC)
• (Scroll a little bit down): ADS Announces World's Most Complete RDS/RBDS/MBS Decoder Chip (RDX-1187c)
• RDS-TMC Decoder
• RDS: "The Radio Data System", "The Broadcasters Guide to RDS"
• RDS Features Serving as Tuning Aids

Technical (External addresses)

• 68hc11 based RDS decoder, Alternativ adresse
• Carsten Groß: My RDS decoder and homemade computer
• (16F84 baseret) Hollies RDS decoder
• Program Identification decoder
• PI CODES DBASE
• FM MEDIA PLAZA
• European FM Handbook 2002-2003, The Directory of European FM Broadcasting!
• Google: DX and Radio Groups
• RDS
• RDS addresses