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šum

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

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Vārdšķira: noun
Sinonīms(-i):
Blossary:
Nozare/domēns: Aerospace
Category: Satellites
Company:
Produkts:
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Saistītie termini

odnos signal/šum (S/N)

Aerospace; Satellites

The ratio of the signal power and noise power. A video S/N of 54 to 56 dB is considered to be an excellent S/N, that is, of broadcast quality. A video S/N of 48 to 52 dB is ...

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.

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 ...

inklinacija

Aerospace; Satellites

The angle between the orbital plane of a satellite and the equatorial plane of the earth.

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