LO2: Multiplatform Distribution Methods (M2)

DAB

DAB is a digital audio broadcasting service that has transmissions made up of zeroes and ones,  from there being no specific frequency that the bands have to stick to it means that they can further send out the same signals multiple times. This means that the persons radio has more chance of picking up signals making DAB radio more reliable than its FM counterpart. On the other hand a few disadvantages of DAB would be that they can damage the quality of the content meaning it is not as clear as FM radio. Another disadvantage of DAB would be that the DAB radio can be very slow and not reliable. 

FM 

FM is a frequency modulation, this is one of the main radio frequency's in the UK. The FM radio uses frequencies from 87.5 MHz to 108MHz, these types of radio stations have better quality than DAB radio. A disadvantage of FM radio would be that they are more complex and complicated receivers than a DAB radio. Another disadvantaged of FM radio would be that they cannot transmit signals from long distances, this would effect the progression of the radio platforms because it would damage the amount popped can listen to it. 

AM

AM radio stands for amplitude modulation, this is the oldest type of radio used in the UK, these are used  commonly to cover both medium and long waves. The frequency band that AM radio uses would be 540-1610 kHz (in the Americas). A advantage of using a AM radio station would be that they are relatively easy to detect with simple equipment meaning they have a more narrow band width to an FM radio.A disadvantage of a AM radio station would be that they are majorly effected by electrical storms and from other radio frequencies interference. 

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