spektar

spektar

The range of electromagnetic radio frequencies used in transmission of voice, data and television.

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Частина мови: noun
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Галузь/тема: Aerospace
Category: Satellites
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apsorpcioni spektar

Chemistry; General chemistry

A plot that shows how much radiation a substance absorbs at different wavelengths . Absorption spectra are unique for each element and compound and they are often used as chemical ...

parabolična antena

Aerospace; Satellites

The most frequently found satellite TV antenna, it takes its name from the shape of the dish described mathematically as a parabola. The function of the parabolic shape is to ...

orbitalni period

Aerospace; Satellites

The time that it takes a satellite to complete one circumnavigation of its orbit.

šum

Aerospace; Satellites

Any unwanted and unmodulated energy that is always present to some extent within any signal.

modulator

Aerospace; Satellites

A device which modulates a carrier. Modulators are found as components in broadcasting transmitters and in satellite transponders. Modulators are also used by CATV companies to ...

herc (Hz)

Aerospace; Satellites

The name given to the basic measure of radio frequency characteristics. An electromagnetic wave completes a full oscillation from its positive to its negative pole and back again ...

interferencija

Aerospace; Satellites

Energy which tends to interfere with the reception of the desired signals, such as fading from airline flights, RF interference from adjacent channels, or ghosting from reflecting ...

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Sveta gora

Greek mountain and pilgrimage site, known as the birthplace of early Christian Orthodox monasticism, housing around 20 Eastern Orthodox monasteries. ...