The data passes through the encoder, the error protection process FEC (Forward Error Correction), through the constellation mapping process, and then the interleaving processes the information to create the data blocks. The data block and the TPS information are multiplexed, and pass through the data processor to form the body structure. It combines information from the body and the head to form the frame and this is passed through the SRRC (Square Root Raised Cosine) filter to become a signal within an 8 MHz channel bandwidth. Finally, the signal is modulated to put it in the corresponding frequency band.
