
Introduction to Wireless Communications
Authored by groupe1 st
Computers
University

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48 questions
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1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Quelles sont les caractéristiques de la fréquence radio ?
Longueur d'onde
Fréquence
Amplitude
Phase
2.
OPEN ENDED QUESTION
3 mins • 1 pt
Qu'est-ce que la fréquence ?
Evaluate responses using AI:
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3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle est la longueur d'onde d'un signal de 2 Hz ?
150 000 km
300 000 km
30 cm
15 cm
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Que se passe-t-il avec la couverture des signaux 5 GHz par rapport aux signaux 2,4 GHz ?
Portée plus courte
Portée plus longue
Même portée
Aucun effet
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quel est l'effet de la séparation de phase de 180 degrés ?
Combine l'amplitude
Neutralise le signal
Améliore le signal
Aucun effet
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle est la fréquence maximale du spectre RF ?
300 GHz
900 MHz
1800 MHz
30 cm
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quel est le phénomène des signaux qui épousent le sol ?
Onde de sol
Onde de ciel
Onde de surface
Onde spatiale
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