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spot beam

Spot beam is the name given to a sharply focused radio beam from a parabolic antenna

. A spot beam has an extremely narrow radiation characteristic and only radiates onto a small part of the earth's surface. Such radio beams are generated by pencil beam antennas. The received field strength is much higher than that of a global beam. The receiving devices are therefore smaller and lighter and achieve a better transmission quality. Another advantage is a more efficient use of frequencies, as the same transmission frequency can be used several times in other spot beams.

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Englisch: spot beam
Updated at: 09.06.2009
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