Free Exam: CDC Volume 2
Number of Questions in Test: 100
Number of Questions in Preview: 5
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What purpose of modulation involves modulating low frequency signals for transmission over long distances?
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | Yes |
Question 2
What purpose of modulation prevents interference when sharing the same communications path?
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | Yes |
Question 3
What factor determines the spacing of the sidebands in an amplitude modulated signal?
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | Yes |
Question 4
The relationship of the bandwidth required for double-sideband emitted carrier (DSBEC) AM to the bandwidth of the modulating signal of the AM bandwidth alone in
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | Yes |
Question 5
The output of the oscillator in a FM modulator increases in frequency with each
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | Yes |