On Oct 1, 1:42 pm, Ratata wrote:
wrote:
"To counter the effects of Doppler shift and Doppler spread the
frequency separation between the OFDM carriers in the DRM signal is
progressively increased (e.g. the carrier spacing in Mode D is more
than 2.5 times that in Mode A). This ensures that the frequency
spread experienced is kept to a sufficiently small fraction of the
carrier spacing to allow correct demodulation."

better than IBOC ??



Digital Radio Mondiale *is* IBOC. (Like HD Radio, it sits right next-
door to the AM signal, widening the channel by a few more kilohertz)