 In early 2016 , two new stations launched DAB + services on the Portsmouth trial multiplex . The operators of the second national multiplex , Sound Digital launched three full @-@ time broadcasting DAB + services on 29 February 2016 . As of May 2016 , there are now eight DAB + stations in Portsmouth ( on the trial multiplex ) ; three in Manchester ( on the trial multiplex ) ; and Chris Country on the North Wales , Cheshire and Liverpool local multiplex , plus the three the on the sound digital network . 
