(F)Element 3-43 Oscillators Flashcards
1
Q
Why is the Colpitts oscillator circuit commonly used in VFO(Variable frequency oscillator)?
A
it is stable
2
Q
What is the oscillator stage called in a frequency synthesizer?
A
VCO (voltage controlled oscillator
3
Q
What are three major oscillator circuits found in radio equipment?
A
Colpitts, Hartley, Pierce
4
Q
Which type of oscillator circuit is commonly used in a vfo?
A
Colpitts
5
Q
What condition must exist for a circuit to oscillate?
A
it must have sufficient positive feedback
6
Q
In figure 3F15, which block diagram symbol(labeled 1-4) is used to represent a local oscillator?
A
2
