Which of the following is not an example of a direct FM modulator?
A) reactance modulator
B) 566 VCO modulator
C) varactor diode modulator
D) Armstrong modulator
Correct Answer:
Verified
Q20: Phase modulation is an indirect form of:
A)
Q21: The advantage of indirect FM modulation over
Q22: In this modulator, FM is created by
Q23: Pre-emphasis is:
A) increasing the relative strength of
Q24: Narrowband FM stations:
A) are found in police,
Q26: Determine the worst case output signal-to-noise ratio
Q27: The most important advantage of FM over
Q28: The main purpose of pre-emphasis and de-emphasis
Q29: The worst case signal-to-noise ratio at the
Q30: The main disadvantage of direct FM modulators
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