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Halfords invents radio signals that don't travel at the speed of light

DuncanLarge Silver badge

> Whilst the higher frequency used by DAB may allow transmission of data faster than the lower frequency analogue FM,

No, you can do it with shortwave but I think you are referring to bandwidth which would be greater than the lower frequencies but that just lest you pack more stations in (if only they didnt do that, DAB might sound god and even be in stereo). The higher frequency was used because its very localised so that you can cover the nation and find it easier to avoid overlap. Also the spectrum was available.

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