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Reteaua radio

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Reteaua radio - PowerPoint PPT Presentation


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Presentation Transcript
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Reteaua Radio

Clasa a VII –a A

Prof. Coordonator : *****

Realizat de : **** ****

slide2
Rol:

Difuzarea programelor radio.

parti componente
Parti componente

Cai de comunicatii :

-unde radio de diferite frecvente si amplitudini (AM si FM)

Nodurile :

-statiile (transmiterea se face pe o raza de 120 km)

Terminalele :

-aparatele radio

stiati ca
Stiati ca …
  • Exista o taxa si pe semnalul de la radio care ne intra in case ,chiar daca nu avem un aparat de radio ?
  • Radio a fost la origine o metodă de transmitere a sunetelor prin unde radio, care prin natura lor sunt unde electromagnetice ?
  • Undele radio călătoresc prin aer și pot trece prin cele mai multe corpuri nemetalice inclusiv corpul omenesc ?
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