DAB Digital Radio
The UK has many layers of DAB Digital Radio coverage. There are three national multiplexes (one from the BBC and two from commercial radio), most areas have a local multiplex (covering a similar area to the heritage BBC local station on FM) and then there’s “small scale” DAB that tends to cover towns.
What is DAB Digital Radio?
Stations broadcast on DAB via a multiplex. A multiplex is a collection of audio and data services which are bundled together into a single frequency. The average multiplex has 1.2 megabits of usable capacity which usually allows up to 25 stations depending upon how many kilobits (‘kbits’) are contracted to each station.
There are currently around 60 operational local multiplexes and 85 small scale multiplexes.
Each multiplex provides a range of existing commercial services, as well as new commercial services that broaden choice. In addition, the existing local BBC station is always guaranteed capacity on the local multiplex for each of their areas.
Getting on DAB Digital Radio: Background – The Stages – The Costs