The ISDB-T modulator / ISDB-TB modulator core enables rapid development of audio and visual systems using commodity free-to-air set-top-box products. Commodity products have largely been aimed at the broadcast market where the high volumes are at the demodulation end of the link. The Commsonic ISDB-T modulator allows exploitation of this technology by allowing the development of the ISDB-T modulator in low-cost FPGA or ASIC implementation. Applications include CCTV, wireless home networking, test equipment, etc.