Do I need a new radio set to receive digital radio?

Yes. With your analogue radio you cannot receive digital radio. "Normal" DAB radios don´t work with the new DAB+ standard. Only a DAB+ suitable radio can receive the new standard. At the moment about 120 DAB+ radio sets are available in the shops, starting at about 50 € .If you click "Geräte" at www.digitalradio.de you will find an updated overview.