<p><b>Professional Analog NTSC CATV UHF VHF TV Tuner</b><br> This analog RF coax to HDMI converter is a professional grade TV tuner for decoding analog coax TV signals or RF modulated signals into HDMI formats at 1080p or DVI format at 1920x1080 pixels.</p> <p>It is also a RF demodulator to work with RF modulators. It supports full TV channel frequencies and can decode all standard UHF/VHF TV, CATV and satellite coax output channels for all NTSC systems.<br> <b>[Note]: This is an analog TV tuner so it can not be used for digital cable channels and can not accept antenna input for aerial DTV broadcast channels</b>.</p> <p><b>Full-Frequency TV Channels For CATV Satellite</b><br> This tuner unit supports all standard analog cable TV channels from CH1 to CH139 or aerial VHF/UHF channels from CH2 to CH83. The built-in tuner is used for all countries using NTSC for TV broadcast standard.</p> <p>This tuner can also decode those TV2 output from satellite receivers and all other Free-To-Air satellite set top boxes.</p> <p><b>Easy Setup </b><br> No initial configuration. No TV channel scan needed.</p> <p><b>Easy Add-On TV Tuner Module<br> </b>This unit is also a great add-on TV tuner module for those HD monitors/projectors that do not have coax TV tuner inputs or have broken RF coax input for alternative replacement solution.</p> <p><b>Last Channel Memory<br> </b>This coax demodulator tuner unit will stay tuned to the same last TV channel when the power comes back on after power-off or power outage or users manually unplugging the power adapter.</p> <p><b>Auto Gain Control<br> </b>The output quality will be re-calibrated and retained the picture stability with minimum distortion and noise-free with full brightness and contrast.</p> <p> <b> 1U 2U 3U Rack Mountable</b><br> Multiple units can be daisy chained together on 1U, 2U or 3U 19" rack, which is sold separately.</p> <p>The 1U rack can hold 2 units. The 2U rack can hold 4 units. The 3U rack can hold up to 6 units