To ensure the frequency stability of an fm transmitter, which, if any, of the following actions could be taken?
A. Modulate a crystal-controlled oscillator at the desired frequency
B. Modulate a low-frequency oscillator, and use frequency multipliers to achieve the operating frequency
C. Modulate a low-frequency oscillator, and heterodyne it with a higherfrequency oscillator to achieve the desired frequency
D. None of the above
Show Answer
Answer: C
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