It is transmitted via analog radio on 693 and 909 kHz AM in the medium wave band . These frequencies belonged to BBC Radio 2 from November 23 , 1978 to August 26 , 1990 .
It is transmitted via analog radio in AM on medium wave 693 and 909 kHz ( 990 kHz at Cardigan Bay ) â '' frequencies originally used by BBC Radio 2 from 23 November 1978 to 26 August 1990 â '' and digitally via DAB , digital television ( satellite , terrestrial and IPTV ) and via an internet stream .