How do I Convert RCA Red White Yellow to a Coax Cable Output?

Written by richard klopfenstein
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How do I Convert RCA Red White Yellow to a Coax Cable Output?
An adaptor is required to go from composite to coaxial. (rca s-vidéo image by serge simo from

Composite cables were the standard "better" way to connect an audio/video device to a television in the 1990s. A cable consisted of three channels: yellow for video, white for left-side audio and red for right-side audio. Coaxial cables are the standard connection method currently used in television. The cable has only one connector, instead of the three in a composite cable. Connecting composite cables (red, white and yellow) to coaxial is simple but requires an additional device.

Skill level:

Things you need

  • Composite cables
  • Coaxial input
  • Coaxial cable

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  1. 1

    Visit your local electronics retail store to find a "composite to coaxial adaptor/modulator." The device may run from £6 to £13. Alternatively, buy it online, but be sure the product performs the function you want.

  2. 2

    Connect the composite cables to the correct inputs on the adaptor/modulator. Connect the adaptor cable to your TV (via the extra coaxial cable).

  3. 3

    Turn on all your devices and search channels 3 to 4 on your TV for the video.

Tips and warnings

  • Some adaptors/modulators have extra requirements (for example: a DC power supply). Be sure to follow your device's instructions for proper set-up.

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