Universal Composite A/V To RF Coax Agile Modulator For NTSC PAL B/G/D/K/I/A

Users can simply use the existing coax cable system to transmit the new video content over the long coax cable through this audio/video coax modulator. This modulator uses double sided band design. So if the 1st modulator is set for using CH18, the 2nd modulator must skip CH19 and use at least CH20 or higher number for the output.

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