DAB Radios work by transmitting through digital instead of analogue. FM stations have quite specific, narrow, frequency bands, so listeners have to search for that frequency to find the station they want. Fall just outside, and you’ll be greeted with silence, or white noise, instead.
A DAB radio uses digital technology which combines a number of stations into a group called a multiplex. There are several multiplexes across the radio band. These national multiplexes are on the same frequency throughout the UK and form what is called a single frequency network. So, a DAB radio scans for available stations, so you don’t need to search yourself using a dial or button. You can access them like you would flicking through the channels on your TV.
