Description of interference into a digital terrestrial television receiver

Interference into a digital terrestrial television (DTT) receiver, i.e. violation of the protection ratio (PR), can impact the received picture.

This report describes the effects that limit the ability of DTT receivers from demodulating the wanted signal correctly. It also describes how, as digital broadcasting systems transmit source coded data, the relationship between demodulation failure and the visible picture impact is not as straightforward as it was in the case of analogue television. Finally, the results of measurements for a specific interference case that illustrate its impact on the received picture can be found in the Annexes.