Good Morning. I am probably even more interested in the transmission of radio broadcasting even more than tv broadcasting. Fortunately Brian's UKFREE.TV website contains lots and lots of information on the different modes of radio transmission, including, of course, DABdigital radio. I'm becoming increasingly interested un when the Government will announce a date for radio switchover to digital. At the present time, I think that it will make an announcement sometime next year, although I'll probably need to update my opinion then! Richard, Norwich.