hat
RDS2 ofri kapasite pou transmèt yon sèl, de oswa twa subcarrier adisyonèl ansanm ak, ak idantik nan estrikti, eritaj RDS subcarrier la. Pandan ke subcarrier nan eritaj santre nan 57 kHz (nan fondamantal FM a), twa nouvo subcarriers yo santre nan 66.5, 71.25 ak 76 kHz (menm jan ak eritaj 57 kHz subcarrier, sa yo subcarrier nouvo yo chak derable soti nan 19 kHz pilòt la) . Montre nan figi ki anba la a se yon konplo espèk nan RDS ak RDS2 subcarrier ak 19 kHz ton an pilòt (konplo sa a se soti nan sistèm nan pwototip demontre nan Forum nan RDS);
eng
RDS2 offers the ability to transmit one, two or three additional subcarriers along with, and identical in structure to, the legacy RDS subcarrier. While the legacy subcarrier is centered at 57 kHz (within the FM baseband), the three new subcarriers are centered at 66.5, 71.25 and 76 kHz (as with the legacy 57 kHz subcarrier, these new subcarriers are each derivable from the 19 kHz pilot). Shown in the figure below is a spectral plot of the RDS and RDS2 subcarriers and the 19 kHz pilot tone (this plot is from the prototype system demonstrated to the RDS Forum);