Genuine Audi OEM Retrofit Kit - DAB Radio - A1 8X

“Digital radio” is the commercial name for “Digital Audio Broadcasting” or DAB for short, a Europe-wide standard for the digital transmission of radio signals. Digital radio reduces the signals by means of the MPEG-1 compression process with no perceptible sound loss (similar to MP3). As a result, instead of just one channel per frequency, up to nine channels can be broadcast on the same frequency within a so-called ensemble.
Digital radio increases the number of programmes that can be transmitted. These include old, familiar FM stations or new special-interest channels. The service is already available in many European countries.
Two different frequency bands are generally used for digital radio: Band III (174-240 MHz) and the so-called L Band (1,452-1,492 MHz). Band III is usually used by stations broadcasting beyond a local area, e.g. across large regions of the country. The L Band mainly offers local stations with limited coverage (e.g. stations broadcasting to one city). You may be able to receive several different ensembles with different broadcasting ranges at one location.