.~ Step-frequency change (e.g., band selection, frequency-shift keying)
DEFINITION
Classification: 331/179
(under subclass 177) Oscillators having means for setting or adjusting the output frequency by discrete increments or steps as distinguished from a continuous variation of frequency from one frequency to another desired frequency setting.
(1) Note. The means may be manually operable switches for switching between tuned oscillatory circuits at will.
SEE OR SEARCH THIS CLASS, SUBCLASS:
161, for crystal oscillators wherein the frequency of oscillation is changed by crystal substitution.
