UHF Signal Amplifier - The 3 RCA CVBS in coax rf out converter will hook up your streaming media players like satellite Set-top / Cable Box or game consoles like PS3 , PS4 , PS5 , Xbox 360 / One , Nintendo Switch and even DVD , Blu-ray players , VCR ,STB , cameras or other A/V sources , And output 3 different TV channels at the same time. RCA to Coaxial Adapter - Converts line level composite video / analog stereo audio signals to RF ( coaxial ) for connection to old TVs that do not have line level AV jacks ; And the volume of audio & the brightness of video is adjustable. RF Modulator - This powerful & functional TV demodulator supports NTSC TV formats , UHF operating frequencies up to 136 channels full band , and comes with 4 modulated TV channels the channel digital display & selectable switch ; No drivers, adapters needed, plug and play , easy to use; You will get more benefits and convenience while saving a lot on your local CATV system. RCA to RF - One F type female coax input for connection of tv tuner , satellite set-top / cable box ; And a separate RF coaxial output for connection of TV or RF splitter to extend your digital / analog signals to other TVs ; And it also comes with channel switch which will not interfere with existing players such as VCR . Multiple Modulation System CATV - Pushbutton digital programming of modulated channels , and compatible with da-8200 and da-550 Series distribution modulators TV Modulator RCA modulator rf converter RCA to Coax coax modulator This AoeSpy Professional RF modulator is 3 RCA CVBS in coax out composite converter for Roku , satellite Set-top / Cable Box or game consoles like PS3 , PS4 , PS5 , Xbox 360 , Xbox One , Nintendo Switch VCRs , Bule-ray / DVD players, camcorders VCR ,STB , cameras or other A/V sources , And output 3 different TV channels at the same time. Powerful & functional SDR TV demodulator will bring you more benefits & great convenience while saving a lot on your local CATV system with its 3 RCA & RF 2 kinds of signals conversion , NTSC TV formats , UHF operating frequencies up to 136 channels full band , and comes with the channel digital display & selectable switch ; You won't regret it ！！！