P3: Multiplatform Distribution methods
DAB: Digital Audio broadcasting is a transmission that is made up of digital binary codes (ones and zeroes). It ensures radio stations can stream at better quality audio than FM or AM. The signal can be sent out multiple times therefore has a higher chance of being picked up. By 2006 , 500 million people had access to DAB radio coverage although by this time sales of receivers had only become popular in UK and Denmark however by 2006 there were approximately 1,000 DAB stations in operation worldwide. FM: Frequency modulation uses frequencies ranging from 87.5MHz to 108MHz. This form of radio transmission has the capability of better sound than DAB but signal drop in and out is prone. FM radio grew rapidly in the 1950s and 1960s , as FM sets became cheaper and more readily available. Car companies began introducing FM car radios in 1963. The difference between FM and AM is in how the carrier wave is altered. The overall strength of the signal is varied to incorporate t...


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