dab is shite for three irreconcilable reasons:
- wavelength limitations forbid adequate coverage of not-spots, they are fractally distributed over the land surface of the planet.
- the standard allows operators to fsck the signal to squeeze in more "quality" content, i.e. advertising
- the technology it is subject to patent licensing fees
Give me a medium-wave slot with a bandwidth of 25 kHz and some mobile phone processing tricks, and I will digitally stuff Hi-Fi stereo down it, right into your back room and your short tunnel, my dear - and, as Groucho Marks would say, even innuendo. That saves 5 kHz on the dual 15 kHz channels that FM needs for stereo, which is plenty enough to add metadata such as song info, station playlists or whatever. So no need to revisit the dicing-and-slicing of channels, even. A dual-mode radio would automatically switch to the technology you just tuned to. You could even use your old FM tuner with a digital decoder bunged between the output socket and your priceless old valve amp. But hey, whoever designed consumer technologies for the convenience of the consumer? >Sigh!<