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G8B07
What is the frequency deviation for a 12.21 MHz reactance modulated oscillator in a 5 kHz deviation, 146.52 MHz FM phone transmitter?
Pick an answer to check it.
Answer: B. 416.7 Hz
The multiplication factor is 146.52 MHz / 12.21 MHz = 12. The oscillator deviation is 5 kHz / 12 = 416.7 Hz, since the multiplier stages multiply the deviation by 12.
Tip: Divide deviation by the multiplication factor.