using varactors, i.e. voltage variable reactive diodes

Introduced: January 1980

Last revised: January 2006

Full Title

Automatic frequency control; Automatic scanning over a band of frequencies > Automatic frequency control > where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant > using varactors, i.e. voltage variable reactive diodes

Classification Context

Section:: ELECTRICITY
Class:: ELECTRONIC CIRCUITRY
Subclass:: TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS

2 direct subcodes

Child Classifications

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H03J 7/1 Modification of automatic frequency control sensitivity or linearising automatic frequency control operation
H03J 7/12 Combination of automatic frequency control voltage with stabilised varactor supply voltage