It isn't the technology that is at fault, it is the implementation. Back in the 1990s when DAB was being "Sold" to the industry it was done so by saying quality would be improved along with the ability to provide data FM Stereo couldn't. History shows that while the quality could be better, the ability to have more stations has overridden that. Also RDS on FM can know provide almost all the same information that DAB data can. There is no advantage of DAB or DAB+ over FM stereo on an equal basis.

Ray