
Equipos de Cabecera
Authored by ib virgendelapaz
Instructional Technology
Professional Development
Used 11+ times

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9 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cómo se denomina el dispositivo que convierte un transpondedor de TV digital satélite en un canal COFDM?
Convertidor
Transmodulador
Amplificador
Modulador
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Como norma general, la _______ de salida se evalúa con la fórmula de Friis. La aproximación solo es cierta cuando la ganancia del amplificador es suficientemente elevada respecto a la atenuación de la red que le sigue.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Que elemento permite convertir un canal de TDT en otro de las mismas características pero modulado a una frecuencia diferente?
Conversor
Transmosulador
Modulador digital
Amplificador
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qué atenuación tiene un cable de 40 m de longitud si el fabricante especifica una atenuación de 12dB/100?
2,4 dB
4,8 dB
0,24 dB
48 dB
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Los parámetros típicos que definen a los amplificadores son:
Ganancia, figura de ruido y C/N
Voltaje de salida y ganancia
Ganancia, figura de ruido y tensión máxima de salida
Ninguna de las anteriores es correcta
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
El equipo de la figura es un
7.
OPEN ENDED QUESTION
3 mins • 1 pt
Que diferencia hay entre un amplificador monocal y uno de banda ancha
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