How to convert coaxial cable to HDMI

Written by james clark
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How to convert coaxial cable to HDMI
You can convert coaxial cable to HDMI. (Comstock Images/Comstock/Getty Images)

Coaxial cable carries audio and video signals from a television programming source to a TV. Modern television sets, especially high definition TVs, are equipped with different jacks for connecting to a source. The most common digital connection is a High Definition Media Interface (HDMI) cable that uses a six-sided plug. Converting coaxial cable to HDMI requires a powered adaptor similar to an old RF modulator for converting coaxial signals. Available at electronics stores, the adaptor attaches to both cables in minutes.

Skill level:

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Things you need

  • Coaxial cable
  • Coax to HDMI adaptor
  • HDMI cable

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  1. 1

    Connect the coaxial cable to the signal adaptor box by attaching the cable coupler to the threaded jack on the box and turning clockwise by hand.

  2. 2

    Connect the other end of the coaxial cable to a compatible signal source, such as the receiver box for cable or satellite TV.

  3. 3

    Plug an HDMI cable into the adaptor box with the wider end of the cable turned upward. An HDMI plug inserts in one direction only.

  4. 4

    Connect the other end of the HDMI cable to a port on the back of a TV, monitor or other video device, again with the wider end of the plug turned upward. If the TV or monitor has more than one HDMI Input, make a note of which one is used with the coaxial cable connection.

  5. 5

    Plug the adaptor and the TV into a surge protector power strip, which can then be connected to a wall outlet.

Tips and warnings

  • Press the "Input" button on the TV remote repeatedly until the signal from the coaxial cable appears on screen.
  • Do not connect the adaptor or the TV to the electricity until the cable connections are complete.

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