H03J7/20 - CPC Classification

Automatic frequency control; Automatic scanning over a band of frequencies; Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element

• H03J7/22 » in which an automatic frequency control circuit is brought into action after the scanning action has been stopped 1
• H03J7/24 » using varactors, i.e. voltage variable reactive diodes 1
• H03J7/28 » using counters or frequency dividers 0

Recent Application in this class: