ABSTRACT
Subcarrier technologies are progressing at a phenomenal rate. So what makes Radio Data System (RDS) worthwhile to implement? Why bother at all with an antiquated subcarrier system when so many faster alternatives are available. For a subcarrier system to be truly available for use it must meet the following requirements. Those are it must be standardized, low-cost implementation, no interference to the main program, it should be robust, it should be compatible with existing services and it should be proven. RDS has been in use for over ten years to date. Since RDS is such an attractive system for robust data transmission, it is no surprise that many companies have developed data services utilizing this subcarrier. The issue of reduced RDS information rate due to its being displaced by paging information is easily understood. Individual RDS blocks are identified by adding a specific offset to the CRC of each block.
