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

Common carrier

Aerospace; Satellites

Any organisation which operates communications circuits used by other people. Common carriers include the telephone companies as well as the owners of the communications satellites, RCA, Comsat, ...

A subcarrier that is added to the main video signal to convey the colour information. In NTSC systems, the colour subcarrier is centred on a frequency of 3.579545 MHz, referenced to the main video ...

Co-location

Aerospace; Satellites

Ability of multiple satellites to share the same approximate geostationary orbital assignment frequently due to the fact that different frequency bands are used.

Focal length

Aerospace; Satellites

Distance from the centre feed to the centre of the dish.

Focal point

Aerospace; Satellites

The area toward which the primary reflector directs and concentrates the signal received.

Equatorial orbit

Aerospace; Satellites

An orbit with a plane parallel to the earth's equator.

Elevation

Aerospace; Satellites

The angle measured in the local vertical plane between the satellite and the local horizon. It is the vertical co-ordinate that is used to align a satellite antenna.