How to Convert Coaxial Cable to HDMI

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 adapter similar to an old RF modulator for converting coaxial signals. Available at electronics stores, the adapter attaches to both cables in minutes.

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

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

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

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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.

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

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