DSM-T1 is a MPEG-2 Encoding, COFDM Modulation (DVB-T Modulator), and Frequency Conversion 3-in-1 Digital TV Signal Modulator. It converts one AV signal into a digital modulated (DVB-T) signal. This device has high transmission speed, delivers better quality digital image, and overcomes the interference of adjacent channels, which is the inevitable problem of an analog modulator.