The diploma thesis is focused on the measurement of selected parameters of the digital TV receiver DVB T, set top box. In the introductory part the work briefly deals with the theory of compression and transmission of the digital TV signal. Main part of the thesis contains detail information about individual circuits of the selected set top box Humax F3-FOX T and the results of measurements of individual parameters obtained from the available measuring devices. The final part of the thesis deals with the design changes necessary for creation of the external output for the signals and also with the methodology of the measurement
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