Device accept any SD or HD HDMI video from any source like DVD player or Cable TV , Sattelite STB and oututs 4 independent CATV RF cahnnels for easy Video Audio with closed captioning distribusison over coaxial network. Device accept any SD / HD Video up to 1080p/60 .Costumer can sellect any channel from the front panel display or computer WEb page via NMS port .Encoding video bit rate from 1 to 22Mbps , AC3 Audio encoding or Dolby pastrought. It is possible to set virual channel numbers for any created physical channel