Transponder Glossary Definition

Term Transponder
Definition

Transponder - It is a satellite component that receives, modulates, amplifies, and re-broadcast a signal back to Earth. More than one television or audio channel can be transmitted over a signal transponder using MPEG compression.

Transponder is a Telecommunications satellite or microwave concept used to transmit communications through radio links, earth stations, antennas, or orbiting spacecraft.

Context & Usage

Satellite and microwave professionals use this concept when planning links, coverage, latency, earth-station equipment, and line-of-sight communications.

Related concepts include Telecommunications, Earth Station, Uplink and Downlink.

Additional Resource: NASA Space Communications and Navigation.

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