onda curta

onda curta

Frequencies in the high frequencies region of 3 to 30 MHz, but this term is often used to refer to frequencies from 1.7 to 30 MHz.

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radio de onda curta

Electronique grand public; Radio

A radio player that is able to receive high frequency (HF) signals of the radio spectrum, between 3,000–30,000 kHz. Shortwave radio obtained its name because its radio wavelengths ...

onda(s)

Météo; Météorologie générale

In general, any pattern with some roughly identifiable periodicity in time and/or space. It is also considered as a disturbance that moves through or over the surface of the ...

onda corta

Météo; Météorologie générale

A progressive wave of smaller amplitude, wave length, and duration than a long wave. It moves in the same direction as the basic current in which it is embedded, and may induce ...

lonxitude de onda

Publicité; Panneaux publicitaires

The distance in a periodic wave between two points of corresponding phases. The LED's wavelength determines its color.

onda de calor

Météo; Météorologie générale

A period of abnormally and uncomfortably hot and usually humid weather. It could last from several days to several weeks. The Weather Channel uses the following criteria for a ...

frecuencias

Electronique grand public; Radio

Popularly known as radio bands. Frequencies are grouped according to their wavelengths, in meters. The tuning locations of a station can be expressed as a frequency (kHz or MHz) ...

modulación de amplitud (AM)

Electronique grand public; Radio

A modulation technique that varies the power output of a transmitter in accordance with the variations in the modulating audio signal.

onda media (MW)

Electronique grand public; Radio

Radio signals from 300 to 3000 kHz, although this term is often used to mean any radio signal in the AM broadcast band (540 to 1700 kHz).

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Secteur d’activité/Domaine : Culture Catégorie : Les gens

Patrimonio Mundial da UNESCO

Un sitio recoñecido coma Patrimonio Mundial pola UNESCO é un lugar ou monumento que destaca pola súa especial importancia cultural ou física. Pode ser ...