Satellites

Satellites

Of or relating to any man-made object launched to orbit Earth or another celestial body.

Industry: Aerospace

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Satellites

spread spectrum

Aerospace; Satellites

The transmission of a signal using a much wider bandwidth and power than would normally be required. Spread spectrum also involves the use of narrower signals that are frequency hopped through ...

stationkeeping

Aerospace; Satellites

Minor orbital adjustments that are conducted to maintain the satellite's orbital assignment within the allocated "box" within the geostationary arc.

stauration flux density (SFD)

Aerospace; Satellites

The power required to achieve saturation of a single repeater channel on the satellite.

spillover

Aerospace; Satellites

Satellite signal that falls on locations outside the beam pattern's defined edge of coverage.

spin stabilization

Aerospace; Satellites

A form of satellite stabilization and attitude control which is achieved through spinning the exterior of the spacecraft about its axis at a fixed rate.

splitter

Aerospace; Satellites

A passive device (one with no active electronic components) which distributes a television signal carried on a cable in two or more paths and sends it to a number of receivers simultaneously.

A focused antenna pattern sent to a limited geographical area. Spot beams are used by domestic satellites to deliver certain transponder signals to geographically well defined areas such as Hawaii, ...