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ID number:711373
 
Evaluation:
Published: 06.01.2020.
Language: Latvian
Level: Elementary school
Literature: 5 units
References: Not used
Extract

Kā darbojas televīzija?
Apraides avots izsūta signālu uz Zemes pavadoni
Zemes pavadonis pastiprina šo signālu un samazina troksni
Tad tas sūta šo signālu uz pakalpojuma pircēja televizora signāla uztvērēju

Ultraīsviļņi
Ultraīsviļņu diapazons
Lielāka informācijas plūsma nekā radiosignālam

Pārraidīšanas frekvence
Noteiktu frekvenču josla
Apgaismojumu un krāsas tonis
Televīzijas pārraides joslas platums ir ap 10 MHz
Skaņas kanāla joslas platums ir 10 KHz

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