R

Radio

A frequency that is higher than the audio frequencies but below the infrared frequencies, usually above 20 KHz.

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Reach

The "Reach" of a satellite system is the number of Households who are receiving at least one channel of that satellite system.

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Receiver

Satellite receiver, part of reception equipment used to tune into a single channel broadcast from a satellite.

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Redundancy

TV signal compression is based on the fact that all TV pictures contain redundant information. Once digitized, a signal’s size can be reduced by removing redundant information. It also refers to secondary back-up systems designed to seamlessly take over in the event of a primary system failure and reduce downtime.

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Return path

Transmission path from the end user to the service provider.