The analysis of DVB-C signal in the digital television cable networks

In this paper the quality parameters of the DVB-C signal transmission in a digital TV network by cable are studied. The measurements in order to analyze the parameters of DVB - C signal were made in Romania, more exactly on the TV network by cable of Targoviste. These measurements refer to the following parameters: BER(Bit Error Rate), MER(Modulation Error Ratio), C/N(carrier-to-noise), margins noise, power signal DVB - C, constellation diagram and frequency spectrum. To evaluate these parameters, an equipment of TV EXPLORER II+ type made by PROMAX Spain was used.

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