What is DAB (Digital Audio Broadcasting)
Analogue broadcasting is being replaced by digital broadcasting. Digital Audio Broadcasting is a digital radio replacement platform for FM and AM analogue radio. Already radio audiences for digital radio are increasing, while analogue listening is starting to decline. 75% of London radio listening is now via a digital platform and two-thirds of that figure is via DAB+. It’s the same picture all around the country.
DAB allows for the carrying of the output of multiple radio stations simultaneously. This method is called multiplexing. Additionally, a recent technical development allows for the cost of multiplexing to be reduced, which in turn allows for delivery of radio station output at a fair and proportionate price point.
This type of broadcasting has been operating as a trial over the last decade, and has already seen a flourishing of new radio station formats, while creating an opening for a new wave of radio professionals, volunteer and community broadcasters. Full time services have been launching across the country and now it is West London’s turn.
DAB+
Added to this is the use of a further refinement DAB+. This improves sound quality and with that, the all-important listening experience.
In terms of the environment, our DAB multiplex plans are good news. When the carbon footprint for a low power multiplex network is shared between 25 broadcast radio stations, the comparative size of that footprint is half that of analogue transmission.
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