Variable-frequency oscillator

（重定向自Variable Frequency Oscillator）

A variable frequency oscillator (VFO) in electronics is an oscillator whose frequency can be tuned (i.e. varied) over some range. It is a necessary component in any tunable radio receiver or transmitter that works by the superheterodyne principle, and controls the frequency to which the apparatus is tuned.

单词	Variable Frequency Oscillator
释义	Variable Frequency Oscillator 英语百科 Variable-frequency oscillator （重定向自Variable Frequency Oscillator） A variable frequency oscillator (VFO) in electronics is an oscillator whose frequency can be tuned (i.e. varied) over some range. It is a necessary component in any tunable radio receiver or transmitter that works by the superheterodyne principle, and controls the frequency to which the apparatus is tuned.
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