DAB on the M4
In the car I have been testing something out - between Cardiff and Swansea, and discovered that D1 an the SDL multiplexes are poor in coverage compared to the Swansea multiplex which covers most of my journey. A drop out on most multiplexes around the Sarn/Bridgend turn off on the M4, but from junction 33 to junction 42. The Swansea multiplex has me tuned in - Swansea Sound gets my vote radio wise between J33 and J42 The South East Wales multiplex just about gets to Porthcawl turn off befor turning in to burbling mud.