RF Coax to HDMI DVI Demodulator Analog TV Tuner for NTSC System Premium external TV tuner module for MATV/SMATV systems used in campus, classrooms, hotels, hospitals. Supports all coax signals coming from cable outlets or cable boxes with RF output only, satellite receivers or modulated CCTV security systems. Decode all UHF/VHF channels, analog cable TV channels, satellite RF output and other modulated outputs. Advanced RF coax TV demodulator for converting the RF coax cable TV signals into either 1080p HDMI or DVI output at 1920x1080 pixels. Full-frequency analog NTSC cable channel support from CH2 to CH139. Full aerial VHF/UHF channel support from CH2 to CH83. Easy replacement solution for HDTVs with broken coax tuner inputs. External add-on TV tuner module for LCD TV, HD monitor/projector without coax inputs. Advanced HD video processor with digital comb filter for smooth digital video/audio output. [Note]: This is an analog TV tuner so it can not be used for digital cable channels and can not accept antenna input. Multiple tuner units can work together with video wall system or split-screen video processor to form a large-scale display system or display multiple TV channels on one screen at the same time. Great RF coax to HDMI audio decoder for streamline setup with new home A/V receiver or home theater system. Easy operation control via IR remote controller or push buttons on the front panel. Perfect for integration with existing closed-circuit TV system. Digital LED screen for TV channel display on the front panel of the module to show users the TV channel selected. Automatic video/audio gain control for compensating the input signal level variation for the best broadcast quality performance. Supports last channel memory. Stay tuned to the last TV channel after being powered off manually or power outage event. Rack-mount kits are available for 1U, 2U or 3U style and sold separately.