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VFO stands for ________(a) Voltage Feedback Oscillator(b) Variable Feedback Oscillator(c) Voltage Frequency Oscillator(d) Variable Frequency OscillatorThis question was posed to me during an interview.This key question is from PWM in division Phase Locked Loop & Pulse Modulation of Analog Communications |
Answer» 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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