Distribution: DAB Digital Audio Broadcasting digital transmission is made up of a string of ones and zeros no frequency bands to stick to the signal can be sent multiple times for the receiver to pick up - more reliable than traditional radio FM the quality isn't always as clear as FM FM Frequency Modulation one of the radio broadcasting systems in the UK uses frequencies from 87.5MHz to 108MHz has a better quality sound than DAB have to tune it in yourself the signal is more prone to dropping in and out - with distance and disturbance LW - AM - Long Wave Amplitude Modulation oldest radio broadcasting system all radio stations broadcast in mono - singular sound, one sound level rather than two to specify between left and right BBC Radio 4 + BBC Radio 5 - AM stations MW - AM - Medium Wave TV - Freeview, Sky, Virgin Online Mobile Phones/Apps advantage - can still listen to radio programmes after they are on air or live - can skip through the...