Mike McCarthy wrote: > DRM is really on-channel...and so is Ibiquity in the non-hybrid mode. > Both live within the 10Khz channel in the end. No, DRM takes up only +/- 5 kHz (or +/- 4.5 kHz in areas with 9 kHz channel spacing), while full-digital AM IBOC hogs a whole +/- 10 kHz (for a total RF bandwidth of 20 kHz).