What is digital switchover in television and radio?
8. In this chapter we consider the differences between analogue and digital broadcasting for both radio and television. For each, we outline the advent of digital broadcasting and trace the point reached today. We then look at Government policy and progress on television switchover and Government plans for digital radio switchover. The move to digital radio is variously described as switchover, migration and upgrade. We have used the word switchover in this report. When we refer specifically to the Government’s radio switchover programme, we have used its full name, Digital Radio Upgrade, or Upgrade. WHAT IS THE DIFFERENCE BETWEEN ANALOGUE AND DIGITAL BROADCASTING? 9. Both digital and analogue television and radio broadcasts are transmitted using the part of the electromagnetic spectrum (radio spectrum). Analogue broadcasting transmits sound and pictures as a continuously varying signal, while digital broadcasting first encodes them into a series of binary digits (zeroes and ones). Thi
