In July, 2006, the Brazilian Government established, the ISDTV as standard for digital terrestrial broadcasting TV in Brazil. The main innovations of ISDTV were the adoption of H264/AVC video coding in all transmissions layers and the use of a middleware developed in Brazil. This work presents a summary of the new modulation scheme (ISDTV) and the results of a field test carried out to evaluate the new system performance, in Sao Paulo. The field test procedure included the capture and record of the RF signal, using a "RF capture" equipment and analyzing the results in the laboratory.

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