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

Spin stabilisation

Aerospace; Satellites

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

A highly stable radio frequency signal, which is used by earth stations equipped with an automatic (satellite) tracking system. Beacons can be generated on-board the satellite, or transmitted from ...

Beamwidth

Aerospace; Satellites

The angle or conical shape of the beam the antenna projects. Large antennas have narrower beamwidths and can pinpoint satellites in space or dense traffic areas on the earth more precisely. Tighter ...

Bird

Aerospace; Satellites

Slang for a communications satellite located in geosynchronous orbit.

Bit error rate

Aerospace; Satellites

The fraction of a sequence of message bits that are in error. A bit error rate of 10-6 means that there is an average of one error per million bits.

Carrier

Aerospace; Satellites

The basic radio, television, or telephony centre of frequency transmit signal. The carrier in an analogue signal. is modulated by manipulating its amplitude (making it louder or softer) or its ...

Carrier frequency

Aerospace; Satellites

The main frequency on which a voice, data, or video signal is sent. Microwave and satellite communications transmitters operate in the band from 1 to 14 GHz (a GHz is one billion cycles per second).