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ID number:511791
 
Author:
Evaluation:
Published: 11.05.2012.
Language: Latvian
Level: Elementary school
Literature: 5 units
References: Not used
Extract

Radioviļņi ir elektromagnētiskie viļņi frekvenču diapozonā no 30kHz līdz 300GHz. Viļņus ar frekvenci no 1GHz līdz 300GHz sauc par mikroviļņiem. Radioviļņus var izplatīt antenā pievadot nepieciešamās frekvences maiņstrāvu, kā arī uztvert tos, pārveidojot elektromagnētiskos viļņus strāvā. Jo īsāks ir viļņa garums, jo īsāka antena ir nepieciešama tā vadīšanai.…

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