Modulação
Authored by Nuno Miguel Azevedo Silveira
Specialty
University
Used 5+ times
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7 questions
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1.
OPEN ENDED QUESTION
2 mins • 1 pt
Indique qual das ondas é a onda portadora.
Qual é a modulação aqui representada?
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2.
OPEN ENDED QUESTION
2 mins • 1 pt
Indique um código de classe de emissão utilizado em VHF - Very High frequency
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3.
OPEN ENDED QUESTION
2 mins • 1 pt
O que indica a primeira letra do código da classe de emissão?
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4.
OPEN ENDED QUESTION
2 mins • 1 pt
Indique qual o equipamento do seu dia-a-dia que recebe este tipo de ondas.
Indique qual o equipamento de bordo que irá utilizar este método de modulação.
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5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Indique o código com a classe de emissão e um equipamento onde se utilize:
Combination of AM and FM or PM; More than one channel containing digital information; Combination of any of the above
B2H - UHF
J3E - VHF
D7W - Telemovel
A8E - MF
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Utiliza-se J3E em que equipamento de bordo?
MF
HF
VHF
UHF
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
O que acontece na onda modulada, nos máximos da onda de sinal (azul escuro). Que tipo de modulação é esta?
Aumenta a frequência. PM
Muda a amplitude. PM
Inverte a fase. PM
Inverte a fase. FM
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