IEC 62106-9-2021 pdf Radio data system (RDS) –VHF/FM sound broadcasting in the frequency range from 64,0 MHz to 108,0 MHz – Part 9: RBDS – RDS variant used in North America

1 Scope This part of IEC 62106 specifies the Radio Broadcast Data System (RBDS), which is an RDS- compatible variant used in countries of North America. RBDS was first standardized by the U.S. National Radio Systems Committee (NRSC) in 1993 and subsequently revised in 1998, 2004, 2005 and 2011 2 . With the publication of this edition of IEC 62106, the RDS and RBDS standards are now harmonized into a single document. The frequency range of operation (64,0 MHz to 108,0 MHz as indicated by the title of this document) varies according to regional regulatory authority. The U.S. range is 88 MHz to 108 MHz, as set by the U.S. Federal Communications Commission. [8] 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 62106 (all parts), Radio Data System (RDS) – VHF/FM sound broadcasting in the frequency range from 64,0 MHz to 108,0 MHz IEC 62106-2:2021, Radio data system (RDS) – VHF/FM sound broadcasting in the frequency range from 64,0 MHz to 108,0 MHz – Part 2: Message format: coding and definition of RDS features
3.2 Abbreviated terms For the purposes of this document, the abbreviated terms given in IEC 62106-1 and the following apply. CBC Canadian Broadcasting Corporation National Public Radio (USA) NPR NRSC RBDS National Radio Systems Committee (USA) Radio Broadcast Data System 4 Coding of information General 4.1 The RBDS standard uses the same data modulation as in IEC 62106-1. It also uses the same RDS features and group type coding as in IEC 62106-2. Open Data Applications coding and registration for application identification are specified in IEC 62106-2 and IEC 62106-3, respectively. Any exceptions for RBDS to these specifications are described in 4.2. 4.2 Exceptions PI coding 4.2.1 The PI code nibbles are composed differently. The methods used are described in Annex A. 4.2.2 PTY coding The 5-bit PTY codes are defined with a different meaning in RBDS. The code definitions given in Annex B shall be used for RBDS. 4.2.3 PS For RBDS, there is no prohibition on using PS for displaying sequential information and there is no requirement that PS be static. For RBDS, there are no restrictions on the content or update rate of the PS field.