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VFO stands for ________

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VFO stands for ________

(a) Voltage Feedback Oscillator

(b) Variable Feedback Oscillator

(c) Voltage Frequency Oscillator

(d) Variable Frequency Oscillator

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This key question is from PWM in division Phase Locked Loop & Pulse Modulation of Analog Communications

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Correct answer is (d) Variable Frequency Oscillator

Easiest explanation: VFO stands for Variable Frequency Oscillator. VFO is an oscillator whose frequency can be tuned over some range. It is a necessary component in any tunable radio. It is mostly used in superheterodyne receivers.

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