The OMX-HDMI-CX-T HDMI extender converts HDMI signals to HD digital TV signals using DVB-T CATV transmission mode. Unlike traditional analog CATV signal, this extender uses 64 QAM mode to convert the signal and transmits via coaxial cables for long distances. Using a CATV splitter, you can easily create a one to multiple or a multiple to multiple matrix.Excellent image quality, high interference resistance, and many obtainable channels, make it ideal for total home CCTV, digital signage, shopping mall advertising, and digital KVM.FeaturesFull 1080P HDResolution: supports up to99 Selectable Channels - allows multiple units on the same coax!TX - HDMI Input99 Selectable ChannelsHDMI Over Coax Extender - Transmitter OnlySpecificationsTally In: D-sub 25-pin (female) Shared with REMOTE IN4 inputs x 2 colors (red or green color frame display)TTL negative logic level signal or make-contact inputVideo Encoding: H.264Audio Encoding: MPEG2Frequency Point: 100-1000MFrequency Point: 100-1000MBit Rate: Max 31.6M bits