This device is a digital HDMI to DVB-T RF encoder modulator. It integrates MPEG-4 AVC/H.264 encoding and modulating functions, converting audio/video signals into DVB-T RF output. The device supports update from USB and has various specifications such as video encoding, resolution, aspect ratio, bitrate, audio encoding, and more. It is suitable for use with PAL and NTSC systems and supports QPSK constellation.