Performance
The quality metrics for a VFO include frequency stability, phase noise and spectral purity. All of these factors tend to be inversely proportional to the tuning circuit's Q factor. Since in general, the tuning range is also inversely proportional to Q, these performance factors generally degrade as the VFO's frequency range is increased.
Read more about this topic: Variable-frequency Oscillator
Famous quotes containing the word performance:
“The way to go to the circus, however, is with someone who has seen perhaps one theatrical performance before in his life and that in the High School hall.... The scales of sophistication are struck from your eyes and you see in the circus a gathering of men and women who are able to do things as a matter of course which you couldn’t do if your life depended on it.”
—Robert Benchley (1889–1945)
“No performance is worth loss of geniality. ‘Tis a cruel price we pay for certain fancy goods called fine arts and philosophy.”
—Ralph Waldo Emerson (1803–1882)
“Still be kind,
And eke out our performance with your mind.”
—William Shakespeare (1564–1616)