This RF coax to composite video demodulator is a great add-on TV tuner module for video monitors, projectors or DVR systems that do not have TV tuner RF input. Multiple units can be daisy chained together on 19" rack. 1U, 2U or 3U style rack mounting kits are available for and sold separately. RF Demodulator With RCA Video Audio Output With the advanced video processor built in, this analog RF coax TV converter can retain the original TV quality with minimum distortion for best visual entertainment. Professional Analog TV Tuner This coax demodulator is a professional grade TV channel converter and supports full TV channel frequencies and can decode all standard UHF/VHF TV, CATV and satellite coax TV out. It is designed for decoding all standard NTSC channels. It can also be used for those satellite receivers with those TV2 out from satellite receivers. IR Remote Controller This external TV tuner can be fully operated and controlled via the supplied IR remote controller or push buttons on the front panel. Last Channel Memory This coax demodulator tuner unit will stay tuned to the same last TV channel after power-off or power outage. Auto Gain Control This TV tuner is built with AGC circuitry for auto adjustment on both video and audio levels. The output quality will be re-calibrated with minimum distortion, full brightness and contrast.