How to connect HDMI to coaxial cable

Written by brian gallagher
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How to connect HDMI to coaxial cable
Coaxial cable (coaxial cable connection image by Michael Shake from

Because of differences between the signals carried by HDMI (digital) and coaxial (analogue) cables, a single cable solution does not exist to connect HDMI to coaxial cable. For transferring between these two signal types you will need an HDMI over coax transmitter. HDMI transmitters, converters and extenders may function differently. This connection requires a transmitter.

Skill level:
Moderately Easy

Things you need

  • Signal source
  • HDMI cable
  • Input device
  • HDMI over coax transmitter
  • Coaxial cable

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  1. 1

    Buy an HDMI over coax transmitter. Make sure this device takes HDMI input and outputs over coaxial cable. Prices vary from under £195 to upwards of £650, depending largely on quality and the number of inputs/outputs.

  2. 2

    Identify the HDMI source. This device--a Blu-ray Disc player or game console, for example--outputs HDMI signal.

  3. 3

    Identify the device--an LCD TV, for example--that receives a coaxial cable input.

    How to connect HDMI to coaxial cable
    TV (tv control and tv 3 image by chrisharvey from
  4. 4

    Connect the HDMI cable from your output device to the input on the transmitter box.

  5. 5

    Connect the coaxial cable to the output on the transmitter box and to the coax input on your TV.

Tips and warnings

  • Purchase a transmitter box that meets your needs: These devices vary significantly in functionality as well as price.

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