What is the difference between analogue TV and digital TV?
Digital technology allows a signal to be compressed. This allows more data to be sent in a single frequency, therefore allowing for more channels to be broadcast. For example, 8 new video channels can be provided in the same frequency as one analogue channel. 2. What is digital terrestrial television (DTT)? Digital Terrestrial Television refers to the use of a network of transmission towers to broadcast digital frequencies. A transmission tower is earth based, unlike satellite transmission which is done using satellite dishes. Each transmission tower has a specific area of coverage that broadcasts to aerials, that are tuned to the corresponding frequency. The broadcast signal is sent to the various towers and it is the network of coverage that provides television signals across the country. SABC, e.tv and M-Net are all broadcast terrestrially. 3. What is the difference between digital terrestrial television (DTT) and satellite television? These are simply different ways of delivering a
