HFO

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HFO: Hybrid-Fiber-Optic

A term used to describe the connection used by some television studio and field production video cameras that combine all video, audio, data, control, power, and other signals onto two single mode fibers and a few copper conductors in one jacket, allowing one cable to provide all the necessary signals a camera needs for the television production environment.

HFO: Heavy fuel oil. A term used in the petroleum industry.