Well said Trevor Harris - and highly accurate. As a telecomms engineer myself, I do not see why all UK radio stations (and regional variants) cannot be carried within the new DVB-T2 specification digital structure.
The BBC did trials into mobile DVB- and the principle is sound.
Then gov.uk could sell off all the DAB/FM frequencies. Very desirable.
Sadly, DVB-T2 is not forward thinking enough, as MIMO was dropped from the UK spec - meaning the bandwidth dividend is not as good (I think we may regret this in future years).
I am also frustrated at the lack of Digital Radio Mondial and DRM+ support. It’s quality is better and coverage greater.