The SKD296X digital modulator is a dual HD input encoder modulator with H.264 encoding. The built-in encoder can take in 2 HD signals and outputs in 1RF after mulitplexing and modulation. It is the best choice to distribute the sport and commericals into your ISDB-T and DVB-T TV system. It is recommended to install them into our SKD-M29 chassis to constitute a small system of 16 channels with 32 TV programs for money-saving.