The main characteristics of the signals of digital broadcasting standards are considered. It is shown that for amplification of digital signals it is necessary to use high-linear amplifiers, which have a significant drawback - low efficiency in the mode of average power. Based on the analysis of the properties of methods for improving the energy efficiency of linear power amplifiers, recommendations have been formulated for using them for signals of various broadcasting standards
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Qasim et al. (2019) studied this question.