AM DSB SSB FM
Authored by Cheng-Ling Ying
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在AM中，載波的幅度會根據基頻訊號m(t)的幅度而改變。
是
否
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
AM 訊號由 3 個頻率組成： 載波：f c，上邊帶：f c + f m，下邊帶：f c – f m
否
是
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在 雙邊帶(DSB) 中，如果f c = 500 kHz、f m = 10 kHz，則訊號的頻寬是多少？
10kHz
20kHz
510kHz
490 kHz
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在 單邊帶SSB 技術中，如果f c = 500 kHz、f m = 10 kHz、則訊號頻寬是多少？
10kHz
20kHz
510kHz
490 kHz
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
AM 調變在以下哪一個頻段傳輸：
5 至 10 kHz
100 至 250 kHz
88 至 108 kHz
535 至 1605 kHz
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
FM 調變在以下哪一個頻段傳輸：
5 至 10 MHz
100 至 250 kHz
88 至 108 MHz
535 至 1605 kHz
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在FM技術中，載波的頻率會根據輸入基頻類比訊號m(t)的頻率而改變。
否
是
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